Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 6281 deletions

diff --git a/gnu/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp b/gnu/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp
deleted file mode 100644
index fc9a145db0c..00000000000
--- a/gnu/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp
+++ /dev/null
@@ -1,6281 +0,0 @@
-//===--- LLVM.cpp - Clang+LLVM ToolChain Implementations --------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Clang.h"
-#include "Arch/AArch64.h"
-#include "Arch/ARM.h"
-#include "Arch/Mips.h"
-#include "Arch/PPC.h"
-#include "Arch/RISCV.h"
-#include "Arch/Sparc.h"
-#include "Arch/SystemZ.h"
-#include "Arch/X86.h"
-#include "AMDGPU.h"
-#include "CommonArgs.h"
-#include "Hexagon.h"
-#include "MSP430.h"
-#include "InputInfo.h"
-#include "PS4CPU.h"
-#include "clang/Basic/CharInfo.h"
-#include "clang/Basic/LangOptions.h"
-#include "clang/Basic/ObjCRuntime.h"
-#include "clang/Basic/Version.h"
-#include "clang/Driver/Distro.h"
-#include "clang/Driver/DriverDiagnostic.h"
-#include "clang/Driver/Options.h"
-#include "clang/Driver/SanitizerArgs.h"
-#include "clang/Driver/XRayArgs.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/Config/llvm-config.h"
-#include "llvm/Option/ArgList.h"
-#include "llvm/Support/CodeGen.h"
-#include "llvm/Support/Compression.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/Process.h"
-#include "llvm/Support/TargetParser.h"
-#include "llvm/Support/YAMLParser.h"
-
-#ifdef LLVM_ON_UNIX
-#include <unistd.h> // For getuid().
-#endif
-
-using namespace clang::driver;
-using namespace clang::driver::tools;
-using namespace clang;
-using namespace llvm::opt;
-
-static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) {
-  if (Arg *A =
-          Args.getLastArg(clang::driver::options::OPT_C, options::OPT_CC)) {
-    if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_P) &&
-        !Args.hasArg(options::OPT__SLASH_EP) && !D.CCCIsCPP()) {
-      D.Diag(clang::diag::err_drv_argument_only_allowed_with)
-          << A->getBaseArg().getAsString(Args)
-          << (D.IsCLMode() ? "/E, /P or /EP" : "-E");
-    }
-  }
-}
-
-static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) {
-  // In gcc, only ARM checks this, but it seems reasonable to check universally.
-  if (Args.hasArg(options::OPT_static))
-    if (const Arg *A =
-            Args.getLastArg(options::OPT_dynamic, options::OPT_mdynamic_no_pic))
-      D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args)
-                                                      << "-static";
-}
-
-// Add backslashes to escape spaces and other backslashes.
-// This is used for the space-separated argument list specified with
-// the -dwarf-debug-flags option.
-static void EscapeSpacesAndBackslashes(const char *Arg,
-                                       SmallVectorImpl<char> &Res) {
-  for (; *Arg; ++Arg) {
-    switch (*Arg) {
-    default:
-      break;
-    case ' ':
-    case '\\':
-      Res.push_back('\\');
-      break;
-    }
-    Res.push_back(*Arg);
-  }
-}
-
-// Quote target names for inclusion in GNU Make dependency files.
-// Only the characters '$', '#', ' ', '\t' are quoted.
-static void QuoteTarget(StringRef Target, SmallVectorImpl<char> &Res) {
-  for (unsigned i = 0, e = Target.size(); i != e; ++i) {
-    switch (Target[i]) {
-    case ' ':
-    case '\t':
-      // Escape the preceding backslashes
-      for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j)
-        Res.push_back('\\');
-
-      // Escape the space/tab
-      Res.push_back('\\');
-      break;
-    case '$':
-      Res.push_back('$');
-      break;
-    case '#':
-      Res.push_back('\\');
-      break;
-    default:
-      break;
-    }
-
-    Res.push_back(Target[i]);
-  }
-}
-
-/// Apply \a Work on the current tool chain \a RegularToolChain and any other
-/// offloading tool chain that is associated with the current action \a JA.
-static void
-forAllAssociatedToolChains(Compilation &C, const JobAction &JA,
-                           const ToolChain &RegularToolChain,
-                           llvm::function_ref<void(const ToolChain &)> Work) {
-  // Apply Work on the current/regular tool chain.
-  Work(RegularToolChain);
-
-  // Apply Work on all the offloading tool chains associated with the current
-  // action.
-  if (JA.isHostOffloading(Action::OFK_Cuda))
-    Work(*C.getSingleOffloadToolChain<Action::OFK_Cuda>());
-  else if (JA.isDeviceOffloading(Action::OFK_Cuda))
-    Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
-  else if (JA.isHostOffloading(Action::OFK_HIP))
-    Work(*C.getSingleOffloadToolChain<Action::OFK_HIP>());
-  else if (JA.isDeviceOffloading(Action::OFK_HIP))
-    Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
-
-  if (JA.isHostOffloading(Action::OFK_OpenMP)) {
-    auto TCs = C.getOffloadToolChains<Action::OFK_OpenMP>();
-    for (auto II = TCs.first, IE = TCs.second; II != IE; ++II)
-      Work(*II->second);
-  } else if (JA.isDeviceOffloading(Action::OFK_OpenMP))
-    Work(*C.getSingleOffloadToolChain<Action::OFK_Host>());
-
-  //
-  // TODO: Add support for other offloading programming models here.
-  //
-}
-
-/// This is a helper function for validating the optional refinement step
-/// parameter in reciprocal argument strings. Return false if there is an error
-/// parsing the refinement step. Otherwise, return true and set the Position
-/// of the refinement step in the input string.
-static bool getRefinementStep(StringRef In, const Driver &D,
-                              const Arg &A, size_t &Position) {
-  const char RefinementStepToken = ':';
-  Position = In.find(RefinementStepToken);
-  if (Position != StringRef::npos) {
-    StringRef Option = A.getOption().getName();
-    StringRef RefStep = In.substr(Position + 1);
-    // Allow exactly one numeric character for the additional refinement
-    // step parameter. This is reasonable for all currently-supported
-    // operations and architectures because we would expect that a larger value
-    // of refinement steps would cause the estimate "optimization" to
-    // under-perform the native operation. Also, if the estimate does not
-    // converge quickly, it probably will not ever converge, so further
-    // refinement steps will not produce a better answer.
-    if (RefStep.size() != 1) {
-      D.Diag(diag::err_drv_invalid_value) << Option << RefStep;
-      return false;
-    }
-    char RefStepChar = RefStep[0];
-    if (RefStepChar < '0' || RefStepChar > '9') {
-      D.Diag(diag::err_drv_invalid_value) << Option << RefStep;
-      return false;
-    }
-  }
-  return true;
-}
-
-/// The -mrecip flag requires processing of many optional parameters.
-static void ParseMRecip(const Driver &D, const ArgList &Args,
-                        ArgStringList &OutStrings) {
-  StringRef DisabledPrefixIn = "!";
-  StringRef DisabledPrefixOut = "!";
-  StringRef EnabledPrefixOut = "";
-  StringRef Out = "-mrecip=";
-
-  Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ);
-  if (!A)
-    return;
-
-  unsigned NumOptions = A->getNumValues();
-  if (NumOptions == 0) {
-    // No option is the same as "all".
-    OutStrings.push_back(Args.MakeArgString(Out + "all"));
-    return;
-  }
-
-  // Pass through "all", "none", or "default" with an optional refinement step.
-  if (NumOptions == 1) {
-    StringRef Val = A->getValue(0);
-    size_t RefStepLoc;
-    if (!getRefinementStep(Val, D, *A, RefStepLoc))
-      return;
-    StringRef ValBase = Val.slice(0, RefStepLoc);
-    if (ValBase == "all" || ValBase == "none" || ValBase == "default") {
-      OutStrings.push_back(Args.MakeArgString(Out + Val));
-      return;
-    }
-  }
-
-  // Each reciprocal type may be enabled or disabled individually.
-  // Check each input value for validity, concatenate them all back together,
-  // and pass through.
-
-  llvm::StringMap<bool> OptionStrings;
-  OptionStrings.insert(std::make_pair("divd", false));
-  OptionStrings.insert(std::make_pair("divf", false));
-  OptionStrings.insert(std::make_pair("vec-divd", false));
-  OptionStrings.insert(std::make_pair("vec-divf", false));
-  OptionStrings.insert(std::make_pair("sqrtd", false));
-  OptionStrings.insert(std::make_pair("sqrtf", false));
-  OptionStrings.insert(std::make_pair("vec-sqrtd", false));
-  OptionStrings.insert(std::make_pair("vec-sqrtf", false));
-
-  for (unsigned i = 0; i != NumOptions; ++i) {
-    StringRef Val = A->getValue(i);
-
-    bool IsDisabled = Val.startswith(DisabledPrefixIn);
-    // Ignore the disablement token for string matching.
-    if (IsDisabled)
-      Val = Val.substr(1);
-
-    size_t RefStep;
-    if (!getRefinementStep(Val, D, *A, RefStep))
-      return;
-
-    StringRef ValBase = Val.slice(0, RefStep);
-    llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase);
-    if (OptionIter == OptionStrings.end()) {
-      // Try again specifying float suffix.
-      OptionIter = OptionStrings.find(ValBase.str() + 'f');
-      if (OptionIter == OptionStrings.end()) {
-        // The input name did not match any known option string.
-        D.Diag(diag::err_drv_unknown_argument) << Val;
-        return;
-      }
-      // The option was specified without a float or double suffix.
-      // Make sure that the double entry was not already specified.
-      // The float entry will be checked below.
-      if (OptionStrings[ValBase.str() + 'd']) {
-        D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val;
-        return;
-      }
-    }
-
-    if (OptionIter->second == true) {
-      // Duplicate option specified.
-      D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val;
-      return;
-    }
-
-    // Mark the matched option as found. Do not allow duplicate specifiers.
-    OptionIter->second = true;
-
-    // If the precision was not specified, also mark the double entry as found.
-    if (ValBase.back() != 'f' && ValBase.back() != 'd')
-      OptionStrings[ValBase.str() + 'd'] = true;
-
-    // Build the output string.
-    StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut;
-    Out = Args.MakeArgString(Out + Prefix + Val);
-    if (i != NumOptions - 1)
-      Out = Args.MakeArgString(Out + ",");
-  }
-
-  OutStrings.push_back(Args.MakeArgString(Out));
-}
-
-/// The -mprefer-vector-width option accepts either a positive integer
-/// or the string "none".
-static void ParseMPreferVectorWidth(const Driver &D, const ArgList &Args,
-                                    ArgStringList &CmdArgs) {
-  Arg *A = Args.getLastArg(options::OPT_mprefer_vector_width_EQ);
-  if (!A)
-    return;
-
-  StringRef Value = A->getValue();
-  if (Value == "none") {
-    CmdArgs.push_back("-mprefer-vector-width=none");
-  } else {
-    unsigned Width;
-    if (Value.getAsInteger(10, Width)) {
-      D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Value;
-      return;
-    }
-    CmdArgs.push_back(Args.MakeArgString("-mprefer-vector-width=" + Value));
-  }
-}
-
-static void getWebAssemblyTargetFeatures(const ArgList &Args,
-                                         std::vector<StringRef> &Features) {
-  handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group);
-}
-
-static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple,
-                              const ArgList &Args, ArgStringList &CmdArgs,
-                              bool ForAS) {
-  const Driver &D = TC.getDriver();
-  std::vector<StringRef> Features;
-  switch (Triple.getArch()) {
-  default:
-    break;
-  case llvm::Triple::mips:
-  case llvm::Triple::mipsel:
-  case llvm::Triple::mips64:
-  case llvm::Triple::mips64el:
-    mips::getMIPSTargetFeatures(D, Triple, Args, Features);
-    break;
-
-  case llvm::Triple::arm:
-  case llvm::Triple::armeb:
-  case llvm::Triple::thumb:
-  case llvm::Triple::thumbeb:
-    arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS);
-    break;
-
-  case llvm::Triple::ppc:
-  case llvm::Triple::ppc64:
-  case llvm::Triple::ppc64le:
-    ppc::getPPCTargetFeatures(D, Triple, Args, Features);
-    break;
-  case llvm::Triple::riscv32:
-  case llvm::Triple::riscv64:
-    riscv::getRISCVTargetFeatures(D, Args, Features);
-    break;
-  case llvm::Triple::systemz:
-    systemz::getSystemZTargetFeatures(Args, Features);
-    break;
-  case llvm::Triple::aarch64:
-  case llvm::Triple::aarch64_be:
-    aarch64::getAArch64TargetFeatures(D, Triple, Args, Features);
-    break;
-  case llvm::Triple::x86:
-  case llvm::Triple::x86_64:
-    x86::getX86TargetFeatures(D, Triple, Args, Features);
-    break;
-  case llvm::Triple::hexagon:
-    hexagon::getHexagonTargetFeatures(D, Args, Features);
-    break;
-  case llvm::Triple::wasm32:
-  case llvm::Triple::wasm64:
-    getWebAssemblyTargetFeatures(Args, Features);
-    break;
-  case llvm::Triple::sparc:
-  case llvm::Triple::sparcel:
-  case llvm::Triple::sparcv9:
-    sparc::getSparcTargetFeatures(D, Args, Features);
-    break;
-  case llvm::Triple::r600:
-  case llvm::Triple::amdgcn:
-    amdgpu::getAMDGPUTargetFeatures(D, Args, Features);
-    break;
-  case llvm::Triple::msp430:
-    msp430::getMSP430TargetFeatures(D, Args, Features);
-  }
-
-  // Find the last of each feature.
-  llvm::StringMap<unsigned> LastOpt;
-  for (unsigned I = 0, N = Features.size(); I < N; ++I) {
-    StringRef Name = Features[I];
-    assert(Name[0] == '-' || Name[0] == '+');
-    LastOpt[Name.drop_front(1)] = I;
-  }
-
-  for (unsigned I = 0, N = Features.size(); I < N; ++I) {
-    // If this feature was overridden, ignore it.
-    StringRef Name = Features[I];
-    llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1));
-    assert(LastI != LastOpt.end());
-    unsigned Last = LastI->second;
-    if (Last != I)
-      continue;
-
-    CmdArgs.push_back("-target-feature");
-    CmdArgs.push_back(Name.data());
-  }
-}
-
-static bool
-shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime,
-                                          const llvm::Triple &Triple) {
-  // We use the zero-cost exception tables for Objective-C if the non-fragile
-  // ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and
-  // later.
-  if (runtime.isNonFragile())
-    return true;
-
-  if (!Triple.isMacOSX())
-    return false;
-
-  return (!Triple.isMacOSXVersionLT(10, 5) &&
-          (Triple.getArch() == llvm::Triple::x86_64 ||
-           Triple.getArch() == llvm::Triple::arm));
-}
-
-/// Adds exception related arguments to the driver command arguments. There's a
-/// master flag, -fexceptions and also language specific flags to enable/disable
-/// C++ and Objective-C exceptions. This makes it possible to for example
-/// disable C++ exceptions but enable Objective-C exceptions.
-static void addExceptionArgs(const ArgList &Args, types::ID InputType,
-                             const ToolChain &TC, bool KernelOrKext,
-                             const ObjCRuntime &objcRuntime,
-                             ArgStringList &CmdArgs) {
-  const llvm::Triple &Triple = TC.getTriple();
-
-  if (KernelOrKext) {
-    // -mkernel and -fapple-kext imply no exceptions, so claim exception related
-    // arguments now to avoid warnings about unused arguments.
-    Args.ClaimAllArgs(options::OPT_fexceptions);
-    Args.ClaimAllArgs(options::OPT_fno_exceptions);
-    Args.ClaimAllArgs(options::OPT_fobjc_exceptions);
-    Args.ClaimAllArgs(options::OPT_fno_objc_exceptions);
-    Args.ClaimAllArgs(options::OPT_fcxx_exceptions);
-    Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions);
-    return;
-  }
-
-  // See if the user explicitly enabled exceptions.
-  bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
-                         false);
-
-  // Obj-C exceptions are enabled by default, regardless of -fexceptions. This
-  // is not necessarily sensible, but follows GCC.
-  if (types::isObjC(InputType) &&
-      Args.hasFlag(options::OPT_fobjc_exceptions,
-                   options::OPT_fno_objc_exceptions, true)) {
-    CmdArgs.push_back("-fobjc-exceptions");
-
-    EH |= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple);
-  }
-
-  if (types::isCXX(InputType)) {
-    // Disable C++ EH by default on XCore and PS4.
-    bool CXXExceptionsEnabled =
-        Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU();
-    Arg *ExceptionArg = Args.getLastArg(
-        options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions,
-        options::OPT_fexceptions, options::OPT_fno_exceptions);
-    if (ExceptionArg)
-      CXXExceptionsEnabled =
-          ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) ||
-          ExceptionArg->getOption().matches(options::OPT_fexceptions);
-
-    if (CXXExceptionsEnabled) {
-      CmdArgs.push_back("-fcxx-exceptions");
-
-      EH = true;
-    }
-  }
-
-  if (EH)
-    CmdArgs.push_back("-fexceptions");
-}
-
-static bool ShouldDisableAutolink(const ArgList &Args, const ToolChain &TC) {
-  bool Default = true;
-  if (TC.getTriple().isOSDarwin()) {
-    // The native darwin assembler doesn't support the linker_option directives,
-    // so we disable them if we think the .s file will be passed to it.
-    Default = TC.useIntegratedAs();
-  }
-  return !Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink,
-                       Default);
-}
-
-static bool ShouldDisableDwarfDirectory(const ArgList &Args,
-                                        const ToolChain &TC) {
-  bool UseDwarfDirectory =
-      Args.hasFlag(options::OPT_fdwarf_directory_asm,
-                   options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs());
-  return !UseDwarfDirectory;
-}
-
-// Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases
-// to the corresponding DebugInfoKind.
-static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) {
-  assert(A.getOption().matches(options::OPT_gN_Group) &&
-         "Not a -g option that specifies a debug-info level");
-  if (A.getOption().matches(options::OPT_g0) ||
-      A.getOption().matches(options::OPT_ggdb0))
-    return codegenoptions::NoDebugInfo;
-  if (A.getOption().matches(options::OPT_gline_tables_only) ||
-      A.getOption().matches(options::OPT_ggdb1))
-    return codegenoptions::DebugLineTablesOnly;
-  if (A.getOption().matches(options::OPT_gline_directives_only))
-    return codegenoptions::DebugDirectivesOnly;
-  return codegenoptions::LimitedDebugInfo;
-}
-
-static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) {
-  switch (Triple.getArch()){
-  default:
-    return false;
-  case llvm::Triple::arm:
-  case llvm::Triple::thumb:
-    // ARM Darwin targets require a frame pointer to be always present to aid
-    // offline debugging via backtraces.
-    return Triple.isOSDarwin();
-  }
-}
-
-static bool useFramePointerForTargetByDefault(const ArgList &Args,
-                                              const llvm::Triple &Triple) {
-  switch (Triple.getArch()) {
-  case llvm::Triple::xcore:
-  case llvm::Triple::wasm32:
-  case llvm::Triple::wasm64:
-    // XCore never wants frame pointers, regardless of OS.
-    // WebAssembly never wants frame pointers.
-    return false;
-  case llvm::Triple::ppc:
-  case llvm::Triple::ppc64:
-  case llvm::Triple::ppc64le:
-  case llvm::Triple::riscv32:
-  case llvm::Triple::riscv64:
-    // PowerPC's frame pointer is often an extra copy of the stack pointer.
-    return !areOptimizationsEnabled(Args);
-  default:
-    break;
-  }
-
-  if (Triple.isOSNetBSD()) {
-    return !areOptimizationsEnabled(Args);
-  }
-
-  if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI ||
-      Triple.isOSHurd()) {
-    switch (Triple.getArch()) {
-    // Don't use a frame pointer on linux if optimizing for certain targets.
-    case llvm::Triple::mips64:
-    case llvm::Triple::mips64el:
-    case llvm::Triple::mips:
-    case llvm::Triple::mipsel:
-    case llvm::Triple::systemz:
-    case llvm::Triple::x86:
-    case llvm::Triple::x86_64:
-      return !areOptimizationsEnabled(Args);
-    default:
-      return true;
-    }
-  }
-
-  if (Triple.isOSWindows()) {
-    switch (Triple.getArch()) {
-    case llvm::Triple::x86:
-      return !areOptimizationsEnabled(Args);
-    case llvm::Triple::x86_64:
-      return Triple.isOSBinFormatMachO();
-    case llvm::Triple::arm:
-    case llvm::Triple::thumb:
-      // Windows on ARM builds with FPO disabled to aid fast stack walking
-      return true;
-    default:
-      // All other supported Windows ISAs use xdata unwind information, so frame
-      // pointers are not generally useful.
-      return false;
-    }
-  }
-
-  return true;
-}
-
-static bool shouldUseFramePointer(const ArgList &Args,
-                                  const llvm::Triple &Triple) {
-  if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer,
-                               options::OPT_fomit_frame_pointer))
-    return A->getOption().matches(options::OPT_fno_omit_frame_pointer) ||
-           mustUseNonLeafFramePointerForTarget(Triple);
-
-  if (Args.hasArg(options::OPT_pg))
-    return true;
-
-  return useFramePointerForTargetByDefault(Args, Triple);
-}
-
-static bool shouldUseLeafFramePointer(const ArgList &Args,
-                                      const llvm::Triple &Triple) {
-  if (Arg *A = Args.getLastArg(options::OPT_mno_omit_leaf_frame_pointer,
-                               options::OPT_momit_leaf_frame_pointer))
-    return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer);
-
-  if (Args.hasArg(options::OPT_pg))
-    return true;
-
-  if (Triple.isPS4CPU())
-    return false;
-
-  return useFramePointerForTargetByDefault(Args, Triple);
-}
-
-/// Add a CC1 option to specify the debug compilation directory.
-static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) {
-  SmallString<128> cwd;
-  if (!llvm::sys::fs::current_path(cwd)) {
-    CmdArgs.push_back("-fdebug-compilation-dir");
-    CmdArgs.push_back(Args.MakeArgString(cwd));
-  }
-}
-
-/// Add a CC1 and CC1AS option to specify the debug file path prefix map.
-static void addDebugPrefixMapArg(const Driver &D, const ArgList &Args, ArgStringList &CmdArgs) {
-  for (const Arg *A : Args.filtered(options::OPT_fdebug_prefix_map_EQ)) {
-    StringRef Map = A->getValue();
-    if (Map.find('=') == StringRef::npos)
-      D.Diag(diag::err_drv_invalid_argument_to_fdebug_prefix_map) << Map;
-    else
-      CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map));
-    A->claim();
-  }
-}
-
-/// Vectorize at all optimization levels greater than 1 except for -Oz.
-/// For -Oz the loop vectorizer is disable, while the slp vectorizer is enabled.
-static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) {
-  if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
-    if (A->getOption().matches(options::OPT_O4) ||
-        A->getOption().matches(options::OPT_Ofast))
-      return true;
-
-    if (A->getOption().matches(options::OPT_O0))
-      return false;
-
-    assert(A->getOption().matches(options::OPT_O) && "Must have a -O flag");
-
-    // Vectorize -Os.
-    StringRef S(A->getValue());
-    if (S == "s")
-      return true;
-
-    // Don't vectorize -Oz, unless it's the slp vectorizer.
-    if (S == "z")
-      return isSlpVec;
-
-    unsigned OptLevel = 0;
-    if (S.getAsInteger(10, OptLevel))
-      return false;
-
-    return OptLevel > 1;
-  }
-
-  return false;
-}
-
-/// Add -x lang to \p CmdArgs for \p Input.
-static void addDashXForInput(const ArgList &Args, const InputInfo &Input,
-                             ArgStringList &CmdArgs) {
-  // When using -verify-pch, we don't want to provide the type
-  // 'precompiled-header' if it was inferred from the file extension
-  if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH)
-    return;
-
-  CmdArgs.push_back("-x");
-  if (Args.hasArg(options::OPT_rewrite_objc))
-    CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX));
-  else {
-    // Map the driver type to the frontend type. This is mostly an identity
-    // mapping, except that the distinction between module interface units
-    // and other source files does not exist at the frontend layer.
-    const char *ClangType;
-    switch (Input.getType()) {
-    case types::TY_CXXModule:
-      ClangType = "c++";
-      break;
-    case types::TY_PP_CXXModule:
-      ClangType = "c++-cpp-output";
-      break;
-    default:
-      ClangType = types::getTypeName(Input.getType());
-      break;
-    }
-    CmdArgs.push_back(ClangType);
-  }
-}
-
-static void appendUserToPath(SmallVectorImpl<char> &Result) {
-#ifdef LLVM_ON_UNIX
-  const char *Username = getenv("LOGNAME");
-#else
-  const char *Username = getenv("USERNAME");
-#endif
-  if (Username) {
-    // Validate that LoginName can be used in a path, and get its length.
-    size_t Len = 0;
-    for (const char *P = Username; *P; ++P, ++Len) {
-      if (!clang::isAlphanumeric(*P) && *P != '_') {
-        Username = nullptr;
-        break;
-      }
-    }
-
-    if (Username && Len > 0) {
-      Result.append(Username, Username + Len);
-      return;
-    }
-  }
-
-// Fallback to user id.
-#ifdef LLVM_ON_UNIX
-  std::string UID = llvm::utostr(getuid());
-#else
-  // FIXME: Windows seems to have an 'SID' that might work.
-  std::string UID = "9999";
-#endif
-  Result.append(UID.begin(), UID.end());
-}
-
-static void addPGOAndCoverageFlags(const ToolChain &TC, Compilation &C,
-                                   const Driver &D, const InputInfo &Output,
-                                   const ArgList &Args,
-                                   ArgStringList &CmdArgs) {
-
-  auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate,
-                                         options::OPT_fprofile_generate_EQ,
-                                         options::OPT_fno_profile_generate);
-  if (PGOGenerateArg &&
-      PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate))
-    PGOGenerateArg = nullptr;
-
-  auto *ProfileGenerateArg = Args.getLastArg(
-      options::OPT_fprofile_instr_generate,
-      options::OPT_fprofile_instr_generate_EQ,
-      options::OPT_fno_profile_instr_generate);
-  if (ProfileGenerateArg &&
-      ProfileGenerateArg->getOption().matches(
-          options::OPT_fno_profile_instr_generate))
-    ProfileGenerateArg = nullptr;
-
-  if (PGOGenerateArg && ProfileGenerateArg)
-    D.Diag(diag::err_drv_argument_not_allowed_with)
-        << PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling();
-
-  auto *ProfileUseArg = getLastProfileUseArg(Args);
-
-  if (PGOGenerateArg && ProfileUseArg)
-    D.Diag(diag::err_drv_argument_not_allowed_with)
-        << ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling();
-
-  if (ProfileGenerateArg && ProfileUseArg)
-    D.Diag(diag::err_drv_argument_not_allowed_with)
-        << ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling();
-
-  if (ProfileGenerateArg) {
-    if (ProfileGenerateArg->getOption().matches(
-            options::OPT_fprofile_instr_generate_EQ))
-      CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") +
-                                           ProfileGenerateArg->getValue()));
-    // The default is to use Clang Instrumentation.
-    CmdArgs.push_back("-fprofile-instrument=clang");
-    if (TC.getTriple().isWindowsMSVCEnvironment()) {
-      // Add dependent lib for clang_rt.profile
-      CmdArgs.push_back(Args.MakeArgString("--dependent-lib=" +
-                                           TC.getCompilerRT(Args, "profile")));
-    }
-  }
-
-  if (PGOGenerateArg) {
-    CmdArgs.push_back("-fprofile-instrument=llvm");
-    if (PGOGenerateArg->getOption().matches(
-            options::OPT_fprofile_generate_EQ)) {
-      SmallString<128> Path(PGOGenerateArg->getValue());
-      llvm::sys::path::append(Path, "default_%m.profraw");
-      CmdArgs.push_back(
-          Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path));
-    }
-  }
-
-  if (ProfileUseArg) {
-    if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ))
-      CmdArgs.push_back(Args.MakeArgString(
-          Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue()));
-    else if ((ProfileUseArg->getOption().matches(
-                  options::OPT_fprofile_use_EQ) ||
-              ProfileUseArg->getOption().matches(
-                  options::OPT_fprofile_instr_use))) {
-      SmallString<128> Path(
-          ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue());
-      if (Path.empty() || llvm::sys::fs::is_directory(Path))
-        llvm::sys::path::append(Path, "default.profdata");
-      CmdArgs.push_back(
-          Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path));
-    }
-  }
-
-  if (Args.hasArg(options::OPT_ftest_coverage) ||
-      Args.hasArg(options::OPT_coverage))
-    CmdArgs.push_back("-femit-coverage-notes");
-  if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
-                   false) ||
-      Args.hasArg(options::OPT_coverage))
-    CmdArgs.push_back("-femit-coverage-data");
-
-  if (Args.hasFlag(options::OPT_fcoverage_mapping,
-                   options::OPT_fno_coverage_mapping, false)) {
-    if (!ProfileGenerateArg)
-      D.Diag(clang::diag::err_drv_argument_only_allowed_with)
-          << "-fcoverage-mapping"
-          << "-fprofile-instr-generate";
-
-    CmdArgs.push_back("-fcoverage-mapping");
-  }
-
-  if (Args.hasArg(options::OPT_fprofile_exclude_files_EQ)) {
-    auto *Arg = Args.getLastArg(options::OPT_fprofile_exclude_files_EQ);
-    if (!Args.hasArg(options::OPT_coverage))
-      D.Diag(clang::diag::err_drv_argument_only_allowed_with)
-          << "-fprofile-exclude-files="
-          << "--coverage";
-
-    StringRef v = Arg->getValue();
-    CmdArgs.push_back(
-        Args.MakeArgString(Twine("-fprofile-exclude-files=" + v)));
-  }
-
-  if (Args.hasArg(options::OPT_fprofile_filter_files_EQ)) {
-    auto *Arg = Args.getLastArg(options::OPT_fprofile_filter_files_EQ);
-    if (!Args.hasArg(options::OPT_coverage))
-      D.Diag(clang::diag::err_drv_argument_only_allowed_with)
-          << "-fprofile-filter-files="
-          << "--coverage";
-
-    StringRef v = Arg->getValue();
-    CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-filter-files=" + v)));
-  }
-
-  if (C.getArgs().hasArg(options::OPT_c) ||
-      C.getArgs().hasArg(options::OPT_S)) {
-    if (Output.isFilename()) {
-      CmdArgs.push_back("-coverage-notes-file");
-      SmallString<128> OutputFilename;
-      if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o))
-        OutputFilename = FinalOutput->getValue();
-      else
-        OutputFilename = llvm::sys::path::filename(Output.getBaseInput());
-      SmallString<128> CoverageFilename = OutputFilename;
-      if (llvm::sys::path::is_relative(CoverageFilename)) {
-        SmallString<128> Pwd;
-        if (!llvm::sys::fs::current_path(Pwd)) {
-          llvm::sys::path::append(Pwd, CoverageFilename);
-          CoverageFilename.swap(Pwd);
-        }
-      }
-      llvm::sys::path::replace_extension(CoverageFilename, "gcno");
-      CmdArgs.push_back(Args.MakeArgString(CoverageFilename));
-
-      // Leave -fprofile-dir= an unused argument unless .gcda emission is
-      // enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider
-      // the flag used. There is no -fno-profile-dir, so the user has no
-      // targeted way to suppress the warning.
-      if (Args.hasArg(options::OPT_fprofile_arcs) ||
-          Args.hasArg(options::OPT_coverage)) {
-        CmdArgs.push_back("-coverage-data-file");
-        if (Arg *FProfileDir = Args.getLastArg(options::OPT_fprofile_dir)) {
-          CoverageFilename = FProfileDir->getValue();
-          llvm::sys::path::append(CoverageFilename, OutputFilename);
-        }
-        llvm::sys::path::replace_extension(CoverageFilename, "gcda");
-        CmdArgs.push_back(Args.MakeArgString(CoverageFilename));
-      }
-    }
-  }
-}
-
-/// Check whether the given input tree contains any compilation actions.
-static bool ContainsCompileAction(const Action *A) {
-  if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A))
-    return true;
-
-  for (const auto &AI : A->inputs())
-    if (ContainsCompileAction(AI))
-      return true;
-
-  return false;
-}
-
-/// Check if -relax-all should be passed to the internal assembler.
-/// This is done by default when compiling non-assembler source with -O0.
-static bool UseRelaxAll(Compilation &C, const ArgList &Args) {
-  bool RelaxDefault = true;
-
-  if (Arg *A = Args.getLastArg(options::OPT_O_Group))
-    RelaxDefault = A->getOption().matches(options::OPT_O0);
-
-  if (RelaxDefault) {
-    RelaxDefault = false;
-    for (const auto &Act : C.getActions()) {
-      if (ContainsCompileAction(Act)) {
-        RelaxDefault = true;
-        break;
-      }
-    }
-  }
-
-  return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all,
-                      RelaxDefault);
-}
-
-// Extract the integer N from a string spelled "-dwarf-N", returning 0
-// on mismatch. The StringRef input (rather than an Arg) allows
-// for use by the "-Xassembler" option parser.
-static unsigned DwarfVersionNum(StringRef ArgValue) {
-  return llvm::StringSwitch<unsigned>(ArgValue)
-      .Case("-gdwarf-2", 2)
-      .Case("-gdwarf-3", 3)
-      .Case("-gdwarf-4", 4)
-      .Case("-gdwarf-5", 5)
-      .Default(0);
-}
-
-static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs,
-                                    codegenoptions::DebugInfoKind DebugInfoKind,
-                                    unsigned DwarfVersion,
-                                    llvm::DebuggerKind DebuggerTuning) {
-  switch (DebugInfoKind) {
-  case codegenoptions::DebugDirectivesOnly:
-    CmdArgs.push_back("-debug-info-kind=line-directives-only");
-    break;
-  case codegenoptions::DebugLineTablesOnly:
-    CmdArgs.push_back("-debug-info-kind=line-tables-only");
-    break;
-  case codegenoptions::LimitedDebugInfo:
-    CmdArgs.push_back("-debug-info-kind=limited");
-    break;
-  case codegenoptions::FullDebugInfo:
-    CmdArgs.push_back("-debug-info-kind=standalone");
-    break;
-  default:
-    break;
-  }
-  if (DwarfVersion > 0)
-    CmdArgs.push_back(
-        Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion)));
-  switch (DebuggerTuning) {
-  case llvm::DebuggerKind::GDB:
-    CmdArgs.push_back("-debugger-tuning=gdb");
-    break;
-  case llvm::DebuggerKind::LLDB:
-    CmdArgs.push_back("-debugger-tuning=lldb");
-    break;
-  case llvm::DebuggerKind::SCE:
-    CmdArgs.push_back("-debugger-tuning=sce");
-    break;
-  default:
-    break;
-  }
-}
-
-static bool checkDebugInfoOption(const Arg *A, const ArgList &Args,
-                                 const Driver &D, const ToolChain &TC) {
-  assert(A && "Expected non-nullptr argument.");
-  if (TC.supportsDebugInfoOption(A))
-    return true;
-  D.Diag(diag::warn_drv_unsupported_debug_info_opt_for_target)
-      << A->getAsString(Args) << TC.getTripleString();
-  return false;
-}
-
-static void RenderDebugInfoCompressionArgs(const ArgList &Args,
-                                           ArgStringList &CmdArgs,
-                                           const Driver &D,
-                                           const ToolChain &TC) {
-  const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ);
-  if (!A)
-    return;
-  if (checkDebugInfoOption(A, Args, D, TC)) {
-    if (A->getOption().getID() == options::OPT_gz) {
-      if (llvm::zlib::isAvailable())
-        CmdArgs.push_back("-compress-debug-sections");
-      else
-        D.Diag(diag::warn_debug_compression_unavailable);
-      return;
-    }
-
-    StringRef Value = A->getValue();
-    if (Value == "none") {
-      CmdArgs.push_back("-compress-debug-sections=none");
-    } else if (Value == "zlib" || Value == "zlib-gnu") {
-      if (llvm::zlib::isAvailable()) {
-        CmdArgs.push_back(
-            Args.MakeArgString("-compress-debug-sections=" + Twine(Value)));
-      } else {
-        D.Diag(diag::warn_debug_compression_unavailable);
-      }
-    } else {
-      D.Diag(diag::err_drv_unsupported_option_argument)
-          << A->getOption().getName() << Value;
-    }
-  }
-}
-
-static const char *RelocationModelName(llvm::Reloc::Model Model) {
-  switch (Model) {
-  case llvm::Reloc::Static:
-    return "static";
-  case llvm::Reloc::PIC_:
-    return "pic";
-  case llvm::Reloc::DynamicNoPIC:
-    return "dynamic-no-pic";
-  case llvm::Reloc::ROPI:
-    return "ropi";
-  case llvm::Reloc::RWPI:
-    return "rwpi";
-  case llvm::Reloc::ROPI_RWPI:
-    return "ropi-rwpi";
-  }
-  llvm_unreachable("Unknown Reloc::Model kind");
-}
-
-void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA,
-                                    const Driver &D, const ArgList &Args,
-                                    ArgStringList &CmdArgs,
-                                    const InputInfo &Output,
-                                    const InputInfoList &Inputs) const {
-  Arg *A;
-  const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU();
-
-  CheckPreprocessingOptions(D, Args);
-
-  Args.AddLastArg(CmdArgs, options::OPT_C);
-  Args.AddLastArg(CmdArgs, options::OPT_CC);
-
-  // Handle dependency file generation.
-  if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) ||
-      (A = Args.getLastArg(options::OPT_MD)) ||
-      (A = Args.getLastArg(options::OPT_MMD))) {
-    // Determine the output location.
-    const char *DepFile;
-    if (Arg *MF = Args.getLastArg(options::OPT_MF)) {
-      DepFile = MF->getValue();
-      C.addFailureResultFile(DepFile, &JA);
-    } else if (Output.getType() == types::TY_Dependencies) {
-      DepFile = Output.getFilename();
-    } else if (A->getOption().matches(options::OPT_M) ||
-               A->getOption().matches(options::OPT_MM)) {
-      DepFile = "-";
-    } else {
-      DepFile = getDependencyFileName(Args, Inputs);
-      C.addFailureResultFile(DepFile, &JA);
-    }
-    CmdArgs.push_back("-dependency-file");
-    CmdArgs.push_back(DepFile);
-
-    // Add a default target if one wasn't specified.
-    if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) {
-      const char *DepTarget;
-
-      // If user provided -o, that is the dependency target, except
-      // when we are only generating a dependency file.
-      Arg *OutputOpt = Args.getLastArg(options::OPT_o);
-      if (OutputOpt && Output.getType() != types::TY_Dependencies) {
-        DepTarget = OutputOpt->getValue();
-      } else {
-        // Otherwise derive from the base input.
-        //
-        // FIXME: This should use the computed output file location.
-        SmallString<128> P(Inputs[0].getBaseInput());
-        llvm::sys::path::replace_extension(P, "o");
-        DepTarget = Args.MakeArgString(llvm::sys::path::filename(P));
-      }
-
-      if (!A->getOption().matches(options::OPT_MD) && !A->getOption().matches(options::OPT_MMD)) {
-        CmdArgs.push_back("-w");
-      }
-      CmdArgs.push_back("-MT");
-      SmallString<128> Quoted;
-      QuoteTarget(DepTarget, Quoted);
-      CmdArgs.push_back(Args.MakeArgString(Quoted));
-    }
-
-    if (A->getOption().matches(options::OPT_M) ||
-        A->getOption().matches(options::OPT_MD))
-      CmdArgs.push_back("-sys-header-deps");
-    if ((isa<PrecompileJobAction>(JA) &&
-         !Args.hasArg(options::OPT_fno_module_file_deps)) ||
-        Args.hasArg(options::OPT_fmodule_file_deps))
-      CmdArgs.push_back("-module-file-deps");
-  }
-
-  if (Args.hasArg(options::OPT_MG)) {
-    if (!A || A->getOption().matches(options::OPT_MD) ||
-        A->getOption().matches(options::OPT_MMD))
-      D.Diag(diag::err_drv_mg_requires_m_or_mm);
-    CmdArgs.push_back("-MG");
-  }
-
-  Args.AddLastArg(CmdArgs, options::OPT_MP);
-  Args.AddLastArg(CmdArgs, options::OPT_MV);
-
-  // Convert all -MQ <target> args to -MT <quoted target>
-  for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) {
-    A->claim();
-
-    if (A->getOption().matches(options::OPT_MQ)) {
-      CmdArgs.push_back("-MT");
-      SmallString<128> Quoted;
-      QuoteTarget(A->getValue(), Quoted);
-      CmdArgs.push_back(Args.MakeArgString(Quoted));
-
-      // -MT flag - no change
-    } else {
-      A->render(Args, CmdArgs);
-    }
-  }
-
-  // Add offload include arguments specific for CUDA.  This must happen before
-  // we -I or -include anything else, because we must pick up the CUDA headers
-  // from the particular CUDA installation, rather than from e.g.
-  // /usr/local/include.
-  if (JA.isOffloading(Action::OFK_Cuda))
-    getToolChain().AddCudaIncludeArgs(Args, CmdArgs);
-
-  // Add -i* options, and automatically translate to
-  // -include-pch/-include-pth for transparent PCH support. It's
-  // wonky, but we include looking for .gch so we can support seamless
-  // replacement into a build system already set up to be generating
-  // .gch files.
-
-  if (getToolChain().getDriver().IsCLMode()) {
-    const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc);
-    const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu);
-    if (YcArg && JA.getKind() >= Action::PrecompileJobClass &&
-        JA.getKind() <= Action::AssembleJobClass) {
-      CmdArgs.push_back(Args.MakeArgString("-building-pch-with-obj"));
-    }
-    if (YcArg || YuArg) {
-      StringRef ThroughHeader = YcArg ? YcArg->getValue() : YuArg->getValue();
-      if (!isa<PrecompileJobAction>(JA)) {
-        CmdArgs.push_back("-include-pch");
-        CmdArgs.push_back(Args.MakeArgString(D.GetClPchPath(
-            C, !ThroughHeader.empty()
-                   ? ThroughHeader
-                   : llvm::sys::path::filename(Inputs[0].getBaseInput()))));
-      }
-
-      if (ThroughHeader.empty()) {
-        CmdArgs.push_back(Args.MakeArgString(
-            Twine("-pch-through-hdrstop-") + (YcArg ? "create" : "use")));
-      } else {
-        CmdArgs.push_back(
-            Args.MakeArgString(Twine("-pch-through-header=") + ThroughHeader));
-      }
-    }
-  }
-
-  bool RenderedImplicitInclude = false;
-  for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) {
-    if (A->getOption().matches(options::OPT_include)) {
-      // Handling of gcc-style gch precompiled headers.
-      bool IsFirstImplicitInclude = !RenderedImplicitInclude;
-      RenderedImplicitInclude = true;
-
-      bool FoundPCH = false;
-      SmallString<128> P(A->getValue());
-      // We want the files to have a name like foo.h.pch. Add a dummy extension
-      // so that replace_extension does the right thing.
-      P += ".dummy";
-      llvm::sys::path::replace_extension(P, "pch");
-      if (llvm::sys::fs::exists(P))
-        FoundPCH = true;
-
-      if (!FoundPCH) {
-        llvm::sys::path::replace_extension(P, "gch");
-        if (llvm::sys::fs::exists(P)) {
-          FoundPCH = true;
-        }
-      }
-
-      if (FoundPCH) {
-        if (IsFirstImplicitInclude) {
-          A->claim();
-          CmdArgs.push_back("-include-pch");
-          CmdArgs.push_back(Args.MakeArgString(P));
-          continue;
-        } else {
-          // Ignore the PCH if not first on command line and emit warning.
-          D.Diag(diag::warn_drv_pch_not_first_include) << P
-                                                       << A->getAsString(Args);
-        }
-      }
-    } else if (A->getOption().matches(options::OPT_isystem_after)) {
-      // Handling of paths which must come late.  These entries are handled by
-      // the toolchain itself after the resource dir is inserted in the right
-      // search order.
-      // Do not claim the argument so that the use of the argument does not
-      // silently go unnoticed on toolchains which do not honour the option.
-      continue;
-    }
-
-    // Not translated, render as usual.
-    A->claim();
-    A->render(Args, CmdArgs);
-  }
-
-  Args.AddAllArgs(CmdArgs,
-                  {options::OPT_D, options::OPT_U, options::OPT_I_Group,
-                   options::OPT_F, options::OPT_index_header_map});
-
-  // Add -Wp, and -Xpreprocessor if using the preprocessor.
-
-  // FIXME: There is a very unfortunate problem here, some troubled
-  // souls abuse -Wp, to pass preprocessor options in gcc syntax. To
-  // really support that we would have to parse and then translate
-  // those options. :(
-  Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA,
-                       options::OPT_Xpreprocessor);
-
-  // -I- is a deprecated GCC feature, reject it.
-  if (Arg *A = Args.getLastArg(options::OPT_I_))
-    D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args);
-
-  // If we have a --sysroot, and don't have an explicit -isysroot flag, add an
-  // -isysroot to the CC1 invocation.
-  StringRef sysroot = C.getSysRoot();
-  if (sysroot != "") {
-    if (!Args.hasArg(options::OPT_isysroot)) {
-      CmdArgs.push_back("-isysroot");
-      CmdArgs.push_back(C.getArgs().MakeArgString(sysroot));
-    }
-  }
-
-  // Parse additional include paths from environment variables.
-  // FIXME: We should probably sink the logic for handling these from the
-  // frontend into the driver. It will allow deleting 4 otherwise unused flags.
-  // CPATH - included following the user specified includes (but prior to
-  // builtin and standard includes).
-  addDirectoryList(Args, CmdArgs, "-I", "CPATH");
-  // C_INCLUDE_PATH - system includes enabled when compiling C.
-  addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH");
-  // CPLUS_INCLUDE_PATH - system includes enabled when compiling C++.
-  addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH");
-  // OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC.
-  addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH");
-  // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++.
-  addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH");
-
-  // While adding the include arguments, we also attempt to retrieve the
-  // arguments of related offloading toolchains or arguments that are specific
-  // of an offloading programming model.
-
-  // Add C++ include arguments, if needed.
-  if (types::isCXX(Inputs[0].getType()))
-    forAllAssociatedToolChains(C, JA, getToolChain(),
-                               [&Args, &CmdArgs](const ToolChain &TC) {
-                                 TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs);
-                               });
-
-  // Add system include arguments for all targets but IAMCU.
-  if (!IsIAMCU)
-    forAllAssociatedToolChains(C, JA, getToolChain(),
-                               [&Args, &CmdArgs](const ToolChain &TC) {
-                                 TC.AddClangSystemIncludeArgs(Args, CmdArgs);
-                               });
-  else {
-    // For IAMCU add special include arguments.
-    getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs);
-  }
-}
-
-// FIXME: Move to target hook.
-static bool isSignedCharDefault(const llvm::Triple &Triple) {
-  switch (Triple.getArch()) {
-  default:
-    return true;
-
-  case llvm::Triple::aarch64:
-  case llvm::Triple::aarch64_be:
-  case llvm::Triple::arm:
-  case llvm::Triple::armeb:
-  case llvm::Triple::thumb:
-  case llvm::Triple::thumbeb:
-    if (Triple.isOSDarwin() || Triple.isOSWindows())
-      return true;
-    return false;
-
-  case llvm::Triple::ppc:
-  case llvm::Triple::ppc64:
-    if (Triple.isOSDarwin())
-      return true;
-    return false;
-
-  case llvm::Triple::hexagon:
-  case llvm::Triple::ppc64le:
-  case llvm::Triple::riscv32:
-  case llvm::Triple::riscv64:
-  case llvm::Triple::systemz:
-  case llvm::Triple::xcore:
-    return false;
-  }
-}
-
-static bool isNoCommonDefault(const llvm::Triple &Triple) {
-  switch (Triple.getArch()) {
-  default:
-    if (Triple.isOSFuchsia())
-      return true;
-    return false;
-
-  case llvm::Triple::xcore:
-  case llvm::Triple::wasm32:
-  case llvm::Triple::wasm64:
-    return true;
-  }
-}
-
-namespace {
-void RenderARMABI(const llvm::Triple &Triple, const ArgList &Args,
-                  ArgStringList &CmdArgs) {
-  // Select the ABI to use.
-  // FIXME: Support -meabi.
-  // FIXME: Parts of this are duplicated in the backend, unify this somehow.
-  const char *ABIName = nullptr;
-  if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) {
-    ABIName = A->getValue();
-  } else {
-    std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false);
-    ABIName = llvm::ARM::computeDefaultTargetABI(Triple, CPU).data();
-  }
-
-  CmdArgs.push_back("-target-abi");
-  CmdArgs.push_back(ABIName);
-}
-}
-
-void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args,
-                             ArgStringList &CmdArgs, bool KernelOrKext) const {
-  RenderARMABI(Triple, Args, CmdArgs);
-
-  // Determine floating point ABI from the options & target defaults.
-  arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args);
-  if (ABI == arm::FloatABI::Soft) {
-    // Floating point operations and argument passing are soft.
-    // FIXME: This changes CPP defines, we need -target-soft-float.
-    CmdArgs.push_back("-msoft-float");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("soft");
-  } else if (ABI == arm::FloatABI::SoftFP) {
-    // Floating point operations are hard, but argument passing is soft.
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("soft");
-  } else {
-    // Floating point operations and argument passing are hard.
-    assert(ABI == arm::FloatABI::Hard && "Invalid float abi!");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("hard");
-  }
-
-  // Forward the -mglobal-merge option for explicit control over the pass.
-  if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge,
-                               options::OPT_mno_global_merge)) {
-    CmdArgs.push_back("-mllvm");
-    if (A->getOption().matches(options::OPT_mno_global_merge))
-      CmdArgs.push_back("-arm-global-merge=false");
-    else
-      CmdArgs.push_back("-arm-global-merge=true");
-  }
-
-  if (!Args.hasFlag(options::OPT_mimplicit_float,
-                    options::OPT_mno_implicit_float, true))
-    CmdArgs.push_back("-no-implicit-float");
-}
-
-void Clang::RenderTargetOptions(const llvm::Triple &EffectiveTriple,
-                                const ArgList &Args, bool KernelOrKext,
-                                ArgStringList &CmdArgs) const {
-  const ToolChain &TC = getToolChain();
-
-  // Add the target features
-  getTargetFeatures(TC, EffectiveTriple, Args, CmdArgs, false);
-
-  // Add target specific flags.
-  switch (TC.getArch()) {
-  default:
-    break;
-
-  case llvm::Triple::arm:
-  case llvm::Triple::armeb:
-  case llvm::Triple::thumb:
-  case llvm::Triple::thumbeb:
-    // Use the effective triple, which takes into account the deployment target.
-    AddARMTargetArgs(EffectiveTriple, Args, CmdArgs, KernelOrKext);
-    CmdArgs.push_back("-fallow-half-arguments-and-returns");
-    break;
-
-  case llvm::Triple::aarch64:
-  case llvm::Triple::aarch64_be:
-    AddAArch64TargetArgs(Args, CmdArgs);
-    CmdArgs.push_back("-fallow-half-arguments-and-returns");
-    break;
-
-  case llvm::Triple::mips:
-  case llvm::Triple::mipsel:
-  case llvm::Triple::mips64:
-  case llvm::Triple::mips64el:
-    AddMIPSTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::ppc:
-  case llvm::Triple::ppc64:
-  case llvm::Triple::ppc64le:
-    AddPPCTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::riscv32:
-  case llvm::Triple::riscv64:
-    AddRISCVTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::sparc:
-  case llvm::Triple::sparcel:
-  case llvm::Triple::sparcv9:
-    AddSparcTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::systemz:
-    AddSystemZTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::x86:
-  case llvm::Triple::x86_64:
-    AddX86TargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::lanai:
-    AddLanaiTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::hexagon:
-    AddHexagonTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::wasm32:
-  case llvm::Triple::wasm64:
-    AddWebAssemblyTargetArgs(Args, CmdArgs);
-    break;
-  }
-}
-
-// Parse -mbranch-protection=<protection>[+<protection>]* where
-//   <protection> ::= standard | none | [bti,pac-ret[+b-key,+leaf]*]
-// Returns a triple of (return address signing Scope, signing key, require
-// landing pads)
-static std::tuple<StringRef, StringRef, bool>
-ParseAArch64BranchProtection(const Driver &D, const ArgList &Args,
-                             const Arg *A) {
-  StringRef Scope = "none";
-  StringRef Key = "a_key";
-  bool IndirectBranches = false;
-
-  StringRef Value = A->getValue();
-  // This maps onto -mbranch-protection=<scope>+<key>
-
-  if (Value.equals("standard")) {
-    Scope = "non-leaf";
-    Key = "a_key";
-    IndirectBranches = true;
-
-  } else if (!Value.equals("none")) {
-    SmallVector<StringRef, 4> BranchProtection;
-    StringRef(A->getValue()).split(BranchProtection, '+');
-
-    auto Protection = BranchProtection.begin();
-    while (Protection != BranchProtection.end()) {
-      if (Protection->equals("bti"))
-        IndirectBranches = true;
-      else if (Protection->equals("pac-ret")) {
-        Scope = "non-leaf";
-        while (++Protection != BranchProtection.end()) {
-          // Inner loop as "leaf" and "b-key" options must only appear attached
-          // to pac-ret.
-          if (Protection->equals("leaf"))
-            Scope = "all";
-          else if (Protection->equals("b-key"))
-            Key = "b_key";
-          else
-            break;
-        }
-        Protection--;
-      } else
-        D.Diag(diag::err_invalid_branch_protection)
-            << *Protection << A->getAsString(Args);
-      Protection++;
-    }
-  }
-
-  return std::make_tuple(Scope, Key, IndirectBranches);
-}
-
-namespace {
-void RenderAArch64ABI(const llvm::Triple &Triple, const ArgList &Args,
-                      ArgStringList &CmdArgs) {
-  const char *ABIName = nullptr;
-  if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
-    ABIName = A->getValue();
-  else if (Triple.isOSDarwin())
-    ABIName = "darwinpcs";
-  else
-    ABIName = "aapcs";
-
-  CmdArgs.push_back("-target-abi");
-  CmdArgs.push_back(ABIName);
-}
-}
-
-void Clang::AddAArch64TargetArgs(const ArgList &Args,
-                                 ArgStringList &CmdArgs) const {
-  const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
-
-  if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) ||
-      Args.hasArg(options::OPT_mkernel) ||
-      Args.hasArg(options::OPT_fapple_kext))
-    CmdArgs.push_back("-disable-red-zone");
-
-  if (!Args.hasFlag(options::OPT_mimplicit_float,
-                    options::OPT_mno_implicit_float, true))
-    CmdArgs.push_back("-no-implicit-float");
-
-  RenderAArch64ABI(Triple, Args, CmdArgs);
-
-  if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769,
-                               options::OPT_mno_fix_cortex_a53_835769)) {
-    CmdArgs.push_back("-mllvm");
-    if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769))
-      CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
-    else
-      CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0");
-  } else if (Triple.isAndroid()) {
-    // Enabled A53 errata (835769) workaround by default on android
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1");
-  }
-
-  // Forward the -mglobal-merge option for explicit control over the pass.
-  if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge,
-                               options::OPT_mno_global_merge)) {
-    CmdArgs.push_back("-mllvm");
-    if (A->getOption().matches(options::OPT_mno_global_merge))
-      CmdArgs.push_back("-aarch64-enable-global-merge=false");
-    else
-      CmdArgs.push_back("-aarch64-enable-global-merge=true");
-  }
-
-  // Enable/disable return address signing and indirect branch targets.
-  if (Arg *A = Args.getLastArg(options::OPT_msign_return_address_EQ,
-                               options::OPT_mbranch_protection_EQ)) {
-
-    const Driver &D = getToolChain().getDriver();
-
-    StringRef Scope, Key;
-    bool IndirectBranches;
-
-    if (A->getOption().matches(options::OPT_msign_return_address_EQ)) {
-      Scope = A->getValue();
-      if (!Scope.equals("none") && !Scope.equals("non-leaf") &&
-          !Scope.equals("all"))
-        D.Diag(diag::err_invalid_branch_protection)
-            << Scope << A->getAsString(Args);
-      Key = "a_key";
-      IndirectBranches = false;
-    } else
-      std::tie(Scope, Key, IndirectBranches) =
-          ParseAArch64BranchProtection(D, Args, A);
-
-    CmdArgs.push_back(
-        Args.MakeArgString(Twine("-msign-return-address=") + Scope));
-    CmdArgs.push_back(
-        Args.MakeArgString(Twine("-msign-return-address-key=") + Key));
-    if (IndirectBranches)
-      CmdArgs.push_back("-mbranch-target-enforce");
-  }
-}
-
-void Clang::AddMIPSTargetArgs(const ArgList &Args,
-                              ArgStringList &CmdArgs) const {
-  const Driver &D = getToolChain().getDriver();
-  StringRef CPUName;
-  StringRef ABIName;
-  const llvm::Triple &Triple = getToolChain().getTriple();
-  mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
-
-  CmdArgs.push_back("-target-abi");
-  CmdArgs.push_back(ABIName.data());
-
-  mips::FloatABI ABI = mips::getMipsFloatABI(D, Args);
-  if (ABI == mips::FloatABI::Soft) {
-    // Floating point operations and argument passing are soft.
-    CmdArgs.push_back("-msoft-float");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("soft");
-  } else {
-    // Floating point operations and argument passing are hard.
-    assert(ABI == mips::FloatABI::Hard && "Invalid float abi!");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("hard");
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) {
-    if (A->getOption().matches(options::OPT_mxgot)) {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-mxgot");
-    }
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1,
-                               options::OPT_mno_ldc1_sdc1)) {
-    if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-mno-ldc1-sdc1");
-    }
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division,
-                               options::OPT_mno_check_zero_division)) {
-    if (A->getOption().matches(options::OPT_mno_check_zero_division)) {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-mno-check-zero-division");
-    }
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_G)) {
-    StringRef v = A->getValue();
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v));
-    A->claim();
-  }
-
-  Arg *GPOpt = Args.getLastArg(options::OPT_mgpopt, options::OPT_mno_gpopt);
-  Arg *ABICalls =
-      Args.getLastArg(options::OPT_mabicalls, options::OPT_mno_abicalls);
-
-  // -mabicalls is the default for many MIPS environments, even with -fno-pic.
-  // -mgpopt is the default for static, -fno-pic environments but these two
-  // options conflict. We want to be certain that -mno-abicalls -mgpopt is
-  // the only case where -mllvm -mgpopt is passed.
-  // NOTE: We need a warning here or in the backend to warn when -mgpopt is
-  //       passed explicitly when compiling something with -mabicalls
-  //       (implictly) in affect. Currently the warning is in the backend.
-  //
-  // When the ABI in use is  N64, we also need to determine the PIC mode that
-  // is in use, as -fno-pic for N64 implies -mno-abicalls.
-  bool NoABICalls =
-      ABICalls && ABICalls->getOption().matches(options::OPT_mno_abicalls);
-
-  llvm::Reloc::Model RelocationModel;
-  unsigned PICLevel;
-  bool IsPIE;
-  std::tie(RelocationModel, PICLevel, IsPIE) =
-      ParsePICArgs(getToolChain(), Args);
-
-  NoABICalls = NoABICalls ||
-               (RelocationModel == llvm::Reloc::Static && ABIName == "n64");
-
-  bool WantGPOpt = GPOpt && GPOpt->getOption().matches(options::OPT_mgpopt);
-  // We quietly ignore -mno-gpopt as the backend defaults to -mno-gpopt.
-  if (NoABICalls && (!GPOpt || WantGPOpt)) {
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back("-mgpopt");
-
-    Arg *LocalSData = Args.getLastArg(options::OPT_mlocal_sdata,
-                                      options::OPT_mno_local_sdata);
-    Arg *ExternSData = Args.getLastArg(options::OPT_mextern_sdata,
-                                       options::OPT_mno_extern_sdata);
-    Arg *EmbeddedData = Args.getLastArg(options::OPT_membedded_data,
-                                        options::OPT_mno_embedded_data);
-    if (LocalSData) {
-      CmdArgs.push_back("-mllvm");
-      if (LocalSData->getOption().matches(options::OPT_mlocal_sdata)) {
-        CmdArgs.push_back("-mlocal-sdata=1");
-      } else {
-        CmdArgs.push_back("-mlocal-sdata=0");
-      }
-      LocalSData->claim();
-    }
-
-    if (ExternSData) {
-      CmdArgs.push_back("-mllvm");
-      if (ExternSData->getOption().matches(options::OPT_mextern_sdata)) {
-        CmdArgs.push_back("-mextern-sdata=1");
-      } else {
-        CmdArgs.push_back("-mextern-sdata=0");
-      }
-      ExternSData->claim();
-    }
-
-    if (EmbeddedData) {
-      CmdArgs.push_back("-mllvm");
-      if (EmbeddedData->getOption().matches(options::OPT_membedded_data)) {
-        CmdArgs.push_back("-membedded-data=1");
-      } else {
-        CmdArgs.push_back("-membedded-data=0");
-      }
-      EmbeddedData->claim();
-    }
-
-  } else if ((!ABICalls || (!NoABICalls && ABICalls)) && WantGPOpt)
-    D.Diag(diag::warn_drv_unsupported_gpopt) << (ABICalls ? 0 : 1);
-
-  if (GPOpt)
-    GPOpt->claim();
-
-  if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) {
-    StringRef Val = StringRef(A->getValue());
-    if (mips::hasCompactBranches(CPUName)) {
-      if (Val == "never" || Val == "always" || Val == "optimal") {
-        CmdArgs.push_back("-mllvm");
-        CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val));
-      } else
-        D.Diag(diag::err_drv_unsupported_option_argument)
-            << A->getOption().getName() << Val;
-    } else
-      D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName;
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_mrelax_pic_calls,
-                               options::OPT_mno_relax_pic_calls)) {
-    if (A->getOption().matches(options::OPT_mno_relax_pic_calls)) {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-mips-jalr-reloc=0");
-    }
-  }
-}
-
-void Clang::AddPPCTargetArgs(const ArgList &Args,
-                             ArgStringList &CmdArgs) const {
-  // Select the ABI to use.
-  const char *ABIName = nullptr;
-  if (getToolChain().getTriple().isOSLinux())
-    switch (getToolChain().getArch()) {
-    case llvm::Triple::ppc64: {
-      // When targeting a processor that supports QPX, or if QPX is
-      // specifically enabled, default to using the ABI that supports QPX (so
-      // long as it is not specifically disabled).
-      bool HasQPX = false;
-      if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
-        HasQPX = A->getValue() == StringRef("a2q");
-      HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX);
-      if (HasQPX) {
-        ABIName = "elfv1-qpx";
-        break;
-      }
-
-      ABIName = "elfv1";
-      break;
-    }
-    case llvm::Triple::ppc64le:
-      ABIName = "elfv2";
-      break;
-    default:
-      break;
-    }
-
-  if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
-    // The ppc64 linux abis are all "altivec" abis by default. Accept and ignore
-    // the option if given as we don't have backend support for any targets
-    // that don't use the altivec abi.
-    if (StringRef(A->getValue()) != "altivec")
-      ABIName = A->getValue();
-
-  ppc::FloatABI FloatABI =
-      ppc::getPPCFloatABI(getToolChain().getDriver(), Args);
-
-  if (FloatABI == ppc::FloatABI::Soft) {
-    // Floating point operations and argument passing are soft.
-    CmdArgs.push_back("-msoft-float");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("soft");
-  } else {
-    // Floating point operations and argument passing are hard.
-    assert(FloatABI == ppc::FloatABI::Hard && "Invalid float abi!");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("hard");
-  }
-
-  if (ABIName) {
-    CmdArgs.push_back("-target-abi");
-    CmdArgs.push_back(ABIName);
-  }
-}
-
-void Clang::AddRISCVTargetArgs(const ArgList &Args,
-                               ArgStringList &CmdArgs) const {
-  // FIXME: currently defaults to the soft-float ABIs. Will need to be
-  // expanded to select ilp32f, ilp32d, lp64f, lp64d when appropriate.
-  const char *ABIName = nullptr;
-  const llvm::Triple &Triple = getToolChain().getTriple();
-  if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ))
-    ABIName = A->getValue();
-  else if (Triple.getArch() == llvm::Triple::riscv32)
-    ABIName = "ilp32";
-  else if (Triple.getArch() == llvm::Triple::riscv64)
-    ABIName = "lp64";
-  else
-    llvm_unreachable("Unexpected triple!");
-
-  CmdArgs.push_back("-target-abi");
-  CmdArgs.push_back(ABIName);
-}
-
-void Clang::AddSparcTargetArgs(const ArgList &Args,
-                               ArgStringList &CmdArgs) const {
-  sparc::FloatABI FloatABI =
-      sparc::getSparcFloatABI(getToolChain().getDriver(), Args);
-
-  if (FloatABI == sparc::FloatABI::Soft) {
-    // Floating point operations and argument passing are soft.
-    CmdArgs.push_back("-msoft-float");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("soft");
-  } else {
-    // Floating point operations and argument passing are hard.
-    assert(FloatABI == sparc::FloatABI::Hard && "Invalid float abi!");
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("hard");
-  }
-}
-
-void Clang::AddSystemZTargetArgs(const ArgList &Args,
-                                 ArgStringList &CmdArgs) const {
-  if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false))
-    CmdArgs.push_back("-mbackchain");
-}
-
-void Clang::AddX86TargetArgs(const ArgList &Args,
-                             ArgStringList &CmdArgs) const {
-  if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) ||
-      Args.hasArg(options::OPT_mkernel) ||
-      Args.hasArg(options::OPT_fapple_kext))
-    CmdArgs.push_back("-disable-red-zone");
-
-  if (!Args.hasFlag(options::OPT_mtls_direct_seg_refs,
-                    options::OPT_mno_tls_direct_seg_refs, true))
-    CmdArgs.push_back("-mno-tls-direct-seg-refs");
-
-  // Default to avoid implicit floating-point for kernel/kext code, but allow
-  // that to be overridden with -mno-soft-float.
-  bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) ||
-                          Args.hasArg(options::OPT_fapple_kext));
-  if (Arg *A = Args.getLastArg(
-          options::OPT_msoft_float, options::OPT_mno_soft_float,
-          options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) {
-    const Option &O = A->getOption();
-    NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) ||
-                       O.matches(options::OPT_msoft_float));
-  }
-  if (NoImplicitFloat)
-    CmdArgs.push_back("-no-implicit-float");
-
-  if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) {
-    StringRef Value = A->getValue();
-    if (Value == "intel" || Value == "att") {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value));
-    } else {
-      getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument)
-          << A->getOption().getName() << Value;
-    }
-  } else if (getToolChain().getDriver().IsCLMode()) {
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back("-x86-asm-syntax=intel");
-  }
-
-  // Set flags to support MCU ABI.
-  if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) {
-    CmdArgs.push_back("-mfloat-abi");
-    CmdArgs.push_back("soft");
-    CmdArgs.push_back("-mstack-alignment=4");
-  }
-}
-
-void Clang::AddHexagonTargetArgs(const ArgList &Args,
-                                 ArgStringList &CmdArgs) const {
-  CmdArgs.push_back("-mqdsp6-compat");
-  CmdArgs.push_back("-Wreturn-type");
-
-  if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) {
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back(Args.MakeArgString("-hexagon-small-data-threshold=" +
-                                         Twine(G.getValue())));
-  }
-
-  if (!Args.hasArg(options::OPT_fno_short_enums))
-    CmdArgs.push_back("-fshort-enums");
-  if (Args.getLastArg(options::OPT_mieee_rnd_near)) {
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back("-enable-hexagon-ieee-rnd-near");
-  }
-  CmdArgs.push_back("-mllvm");
-  CmdArgs.push_back("-machine-sink-split=0");
-}
-
-void Clang::AddLanaiTargetArgs(const ArgList &Args,
-                               ArgStringList &CmdArgs) const {
-  if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
-    StringRef CPUName = A->getValue();
-
-    CmdArgs.push_back("-target-cpu");
-    CmdArgs.push_back(Args.MakeArgString(CPUName));
-  }
-  if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) {
-    StringRef Value = A->getValue();
-    // Only support mregparm=4 to support old usage. Report error for all other
-    // cases.
-    int Mregparm;
-    if (Value.getAsInteger(10, Mregparm)) {
-      if (Mregparm != 4) {
-        getToolChain().getDriver().Diag(
-            diag::err_drv_unsupported_option_argument)
-            << A->getOption().getName() << Value;
-      }
-    }
-  }
-}
-
-void Clang::AddWebAssemblyTargetArgs(const ArgList &Args,
-                                     ArgStringList &CmdArgs) const {
-  // Default to "hidden" visibility.
-  if (!Args.hasArg(options::OPT_fvisibility_EQ,
-                   options::OPT_fvisibility_ms_compat)) {
-    CmdArgs.push_back("-fvisibility");
-    CmdArgs.push_back("hidden");
-  }
-}
-
-void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename,
-                                    StringRef Target, const InputInfo &Output,
-                                    const InputInfo &Input, const ArgList &Args) const {
-  // If this is a dry run, do not create the compilation database file.
-  if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH))
-    return;
-
-  using llvm::yaml::escape;
-  const Driver &D = getToolChain().getDriver();
-
-  if (!CompilationDatabase) {
-    std::error_code EC;
-    auto File = llvm::make_unique<llvm::raw_fd_ostream>(Filename, EC, llvm::sys::fs::F_Text);
-    if (EC) {
-      D.Diag(clang::diag::err_drv_compilationdatabase) << Filename
-                                                       << EC.message();
-      return;
-    }
-    CompilationDatabase = std::move(File);
-  }
-  auto &CDB = *CompilationDatabase;
-  SmallString<128> Buf;
-  if (llvm::sys::fs::current_path(Buf))
-    Buf = ".";
-  CDB << "{ \"directory\": \"" << escape(Buf) << "\"";
-  CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\"";
-  CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\"";
-  CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\"";
-  Buf = "-x";
-  Buf += types::getTypeName(Input.getType());
-  CDB << ", \"" << escape(Buf) << "\"";
-  if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) {
-    Buf = "--sysroot=";
-    Buf += D.SysRoot;
-    CDB << ", \"" << escape(Buf) << "\"";
-  }
-  CDB << ", \"" << escape(Input.getFilename()) << "\"";
-  for (auto &A: Args) {
-    auto &O = A->getOption();
-    // Skip language selection, which is positional.
-    if (O.getID() == options::OPT_x)
-      continue;
-    // Skip writing dependency output and the compilation database itself.
-    if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group)
-      continue;
-    // Skip inputs.
-    if (O.getKind() == Option::InputClass)
-      continue;
-    // All other arguments are quoted and appended.
-    ArgStringList ASL;
-    A->render(Args, ASL);
-    for (auto &it: ASL)
-      CDB << ", \"" << escape(it) << "\"";
-  }
-  Buf = "--target=";
-  Buf += Target;
-  CDB << ", \"" << escape(Buf) << "\"]},\n";
-}
-
-static void CollectArgsForIntegratedAssembler(Compilation &C,
-                                              const ArgList &Args,
-                                              ArgStringList &CmdArgs,
-                                              const Driver &D) {
-  if (UseRelaxAll(C, Args))
-    CmdArgs.push_back("-mrelax-all");
-
-  // Only default to -mincremental-linker-compatible if we think we are
-  // targeting the MSVC linker.
-  bool DefaultIncrementalLinkerCompatible =
-      C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment();
-  if (Args.hasFlag(options::OPT_mincremental_linker_compatible,
-                   options::OPT_mno_incremental_linker_compatible,
-                   DefaultIncrementalLinkerCompatible))
-    CmdArgs.push_back("-mincremental-linker-compatible");
-
-  switch (C.getDefaultToolChain().getArch()) {
-  case llvm::Triple::arm:
-  case llvm::Triple::armeb:
-  case llvm::Triple::thumb:
-  case llvm::Triple::thumbeb:
-    if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) {
-      StringRef Value = A->getValue();
-      if (Value == "always" || Value == "never" || Value == "arm" ||
-          Value == "thumb") {
-        CmdArgs.push_back("-mllvm");
-        CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value));
-      } else {
-        D.Diag(diag::err_drv_unsupported_option_argument)
-            << A->getOption().getName() << Value;
-      }
-    }
-    break;
-  default:
-    break;
-  }
-
-  // When passing -I arguments to the assembler we sometimes need to
-  // unconditionally take the next argument.  For example, when parsing
-  // '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the
-  // -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo'
-  // arg after parsing the '-I' arg.
-  bool TakeNextArg = false;
-
-  bool UseRelaxRelocations = C.getDefaultToolChain().useRelaxRelocations();
-  const char *MipsTargetFeature = nullptr;
-  for (const Arg *A :
-       Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
-    A->claim();
-
-    for (StringRef Value : A->getValues()) {
-      if (TakeNextArg) {
-        CmdArgs.push_back(Value.data());
-        TakeNextArg = false;
-        continue;
-      }
-
-      if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() &&
-          Value == "-mbig-obj")
-        continue; // LLVM handles bigobj automatically
-
-      switch (C.getDefaultToolChain().getArch()) {
-      default:
-        break;
-      case llvm::Triple::thumb:
-      case llvm::Triple::thumbeb:
-      case llvm::Triple::arm:
-      case llvm::Triple::armeb:
-        if (Value == "-mthumb")
-          // -mthumb has already been processed in ComputeLLVMTriple()
-          // recognize but skip over here.
-          continue;
-        break;
-      case llvm::Triple::mips:
-      case llvm::Triple::mipsel:
-      case llvm::Triple::mips64:
-      case llvm::Triple::mips64el:
-        if (Value == "--trap") {
-          CmdArgs.push_back("-target-feature");
-          CmdArgs.push_back("+use-tcc-in-div");
-          continue;
-        }
-        if (Value == "--break") {
-          CmdArgs.push_back("-target-feature");
-          CmdArgs.push_back("-use-tcc-in-div");
-          continue;
-        }
-        if (Value.startswith("-msoft-float")) {
-          CmdArgs.push_back("-target-feature");
-          CmdArgs.push_back("+soft-float");
-          continue;
-        }
-        if (Value.startswith("-mhard-float")) {
-          CmdArgs.push_back("-target-feature");
-          CmdArgs.push_back("-soft-float");
-          continue;
-        }
-
-        MipsTargetFeature = llvm::StringSwitch<const char *>(Value)
-                                .Case("-mips1", "+mips1")
-                                .Case("-mips2", "+mips2")
-                                .Case("-mips3", "+mips3")
-                                .Case("-mips4", "+mips4")
-                                .Case("-mips5", "+mips5")
-                                .Case("-mips32", "+mips32")
-                                .Case("-mips32r2", "+mips32r2")
-                                .Case("-mips32r3", "+mips32r3")
-                                .Case("-mips32r5", "+mips32r5")
-                                .Case("-mips32r6", "+mips32r6")
-                                .Case("-mips64", "+mips64")
-                                .Case("-mips64r2", "+mips64r2")
-                                .Case("-mips64r3", "+mips64r3")
-                                .Case("-mips64r5", "+mips64r5")
-                                .Case("-mips64r6", "+mips64r6")
-                                .Default(nullptr);
-        if (MipsTargetFeature)
-          continue;
-      }
-
-      if (Value == "-force_cpusubtype_ALL") {
-        // Do nothing, this is the default and we don't support anything else.
-      } else if (Value == "-L") {
-        CmdArgs.push_back("-msave-temp-labels");
-      } else if (Value == "--fatal-warnings") {
-        CmdArgs.push_back("-massembler-fatal-warnings");
-      } else if (Value == "--noexecstack") {
-        CmdArgs.push_back("-mnoexecstack");
-      } else if (Value.startswith("-compress-debug-sections") ||
-                 Value.startswith("--compress-debug-sections") ||
-                 Value == "-nocompress-debug-sections" ||
-                 Value == "--nocompress-debug-sections") {
-        CmdArgs.push_back(Value.data());
-      } else if (Value == "-mrelax-relocations=yes" ||
-                 Value == "--mrelax-relocations=yes") {
-        UseRelaxRelocations = true;
-      } else if (Value == "-mrelax-relocations=no" ||
-                 Value == "--mrelax-relocations=no") {
-        UseRelaxRelocations = false;
-      } else if (Value.startswith("-I")) {
-        CmdArgs.push_back(Value.data());
-        // We need to consume the next argument if the current arg is a plain
-        // -I. The next arg will be the include directory.
-        if (Value == "-I")
-          TakeNextArg = true;
-      } else if (Value.startswith("-gdwarf-")) {
-        // "-gdwarf-N" options are not cc1as options.
-        unsigned DwarfVersion = DwarfVersionNum(Value);
-        if (DwarfVersion == 0) { // Send it onward, and let cc1as complain.
-          CmdArgs.push_back(Value.data());
-        } else {
-          RenderDebugEnablingArgs(Args, CmdArgs,
-                                  codegenoptions::LimitedDebugInfo,
-                                  DwarfVersion, llvm::DebuggerKind::Default);
-        }
-      } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") ||
-                 Value.startswith("-mhwdiv") || Value.startswith("-march")) {
-        // Do nothing, we'll validate it later.
-      } else if (Value == "-defsym") {
-          if (A->getNumValues() != 2) {
-            D.Diag(diag::err_drv_defsym_invalid_format) << Value;
-            break;
-          }
-          const char *S = A->getValue(1);
-          auto Pair = StringRef(S).split('=');
-          auto Sym = Pair.first;
-          auto SVal = Pair.second;
-
-          if (Sym.empty() || SVal.empty()) {
-            D.Diag(diag::err_drv_defsym_invalid_format) << S;
-            break;
-          }
-          int64_t IVal;
-          if (SVal.getAsInteger(0, IVal)) {
-            D.Diag(diag::err_drv_defsym_invalid_symval) << SVal;
-            break;
-          }
-          CmdArgs.push_back(Value.data());
-          TakeNextArg = true;
-      } else if (Value == "-fdebug-compilation-dir") {
-        CmdArgs.push_back("-fdebug-compilation-dir");
-        TakeNextArg = true;
-      } else {
-        D.Diag(diag::err_drv_unsupported_option_argument)
-            << A->getOption().getName() << Value;
-      }
-    }
-  }
-  if (UseRelaxRelocations)
-    CmdArgs.push_back("--mrelax-relocations");
-  if (MipsTargetFeature != nullptr) {
-    CmdArgs.push_back("-target-feature");
-    CmdArgs.push_back(MipsTargetFeature);
-  }
-
-  // forward -fembed-bitcode to assmebler
-  if (C.getDriver().embedBitcodeEnabled() ||
-      C.getDriver().embedBitcodeMarkerOnly())
-    Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ);
-}
-
-static void RenderFloatingPointOptions(const ToolChain &TC, const Driver &D,
-                                       bool OFastEnabled, const ArgList &Args,
-                                       ArgStringList &CmdArgs) {
-  // Handle various floating point optimization flags, mapping them to the
-  // appropriate LLVM code generation flags. This is complicated by several
-  // "umbrella" flags, so we do this by stepping through the flags incrementally
-  // adjusting what we think is enabled/disabled, then at the end setting the
-  // LLVM flags based on the final state.
-  bool HonorINFs = true;
-  bool HonorNaNs = true;
-  // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes.
-  bool MathErrno = TC.IsMathErrnoDefault();
-  bool AssociativeMath = false;
-  bool ReciprocalMath = false;
-  bool SignedZeros = true;
-  bool TrappingMath = true;
-  StringRef DenormalFPMath = "";
-  StringRef FPContract = "";
-
-  if (const Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) {
-    CmdArgs.push_back("-mlimit-float-precision");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  for (const Arg *A : Args) {
-    switch (A->getOption().getID()) {
-    // If this isn't an FP option skip the claim below
-    default: continue;
-
-    // Options controlling individual features
-    case options::OPT_fhonor_infinities:    HonorINFs = true;         break;
-    case options::OPT_fno_honor_infinities: HonorINFs = false;        break;
-    case options::OPT_fhonor_nans:          HonorNaNs = true;         break;
-    case options::OPT_fno_honor_nans:       HonorNaNs = false;        break;
-    case options::OPT_fmath_errno:          MathErrno = true;         break;
-    case options::OPT_fno_math_errno:       MathErrno = false;        break;
-    case options::OPT_fassociative_math:    AssociativeMath = true;   break;
-    case options::OPT_fno_associative_math: AssociativeMath = false;  break;
-    case options::OPT_freciprocal_math:     ReciprocalMath = true;    break;
-    case options::OPT_fno_reciprocal_math:  ReciprocalMath = false;   break;
-    case options::OPT_fsigned_zeros:        SignedZeros = true;       break;
-    case options::OPT_fno_signed_zeros:     SignedZeros = false;      break;
-    case options::OPT_ftrapping_math:       TrappingMath = true;      break;
-    case options::OPT_fno_trapping_math:    TrappingMath = false;     break;
-
-    case options::OPT_fdenormal_fp_math_EQ:
-      DenormalFPMath = A->getValue();
-      break;
-
-    // Validate and pass through -fp-contract option.
-    case options::OPT_ffp_contract: {
-      StringRef Val = A->getValue();
-      if (Val == "fast" || Val == "on" || Val == "off")
-        FPContract = Val;
-      else
-        D.Diag(diag::err_drv_unsupported_option_argument)
-            << A->getOption().getName() << Val;
-      break;
-    }
-
-    case options::OPT_ffinite_math_only:
-      HonorINFs = false;
-      HonorNaNs = false;
-      break;
-    case options::OPT_fno_finite_math_only:
-      HonorINFs = true;
-      HonorNaNs = true;
-      break;
-
-    case options::OPT_funsafe_math_optimizations:
-      AssociativeMath = true;
-      ReciprocalMath = true;
-      SignedZeros = false;
-      TrappingMath = false;
-      break;
-    case options::OPT_fno_unsafe_math_optimizations:
-      AssociativeMath = false;
-      ReciprocalMath = false;
-      SignedZeros = true;
-      TrappingMath = true;
-      // -fno_unsafe_math_optimizations restores default denormal handling
-      DenormalFPMath = "";
-      break;
-
-    case options::OPT_Ofast:
-      // If -Ofast is the optimization level, then -ffast-math should be enabled
-      if (!OFastEnabled)
-        continue;
-      LLVM_FALLTHROUGH;
-    case options::OPT_ffast_math:
-      HonorINFs = false;
-      HonorNaNs = false;
-      MathErrno = false;
-      AssociativeMath = true;
-      ReciprocalMath = true;
-      SignedZeros = false;
-      TrappingMath = false;
-      // If fast-math is set then set the fp-contract mode to fast.
-      FPContract = "fast";
-      break;
-    case options::OPT_fno_fast_math:
-      HonorINFs = true;
-      HonorNaNs = true;
-      // Turning on -ffast-math (with either flag) removes the need for
-      // MathErrno. However, turning *off* -ffast-math merely restores the
-      // toolchain default (which may be false).
-      MathErrno = TC.IsMathErrnoDefault();
-      AssociativeMath = false;
-      ReciprocalMath = false;
-      SignedZeros = true;
-      TrappingMath = true;
-      // -fno_fast_math restores default denormal and fpcontract handling
-      DenormalFPMath = "";
-      FPContract = "";
-      break;
-    }
-
-    // If we handled this option claim it
-    A->claim();
-  }
-
-  if (!HonorINFs)
-    CmdArgs.push_back("-menable-no-infs");
-
-  if (!HonorNaNs)
-    CmdArgs.push_back("-menable-no-nans");
-
-  if (MathErrno)
-    CmdArgs.push_back("-fmath-errno");
-
-  if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros &&
-      !TrappingMath)
-    CmdArgs.push_back("-menable-unsafe-fp-math");
-
-  if (!SignedZeros)
-    CmdArgs.push_back("-fno-signed-zeros");
-
-  if (AssociativeMath && !SignedZeros && !TrappingMath)
-    CmdArgs.push_back("-mreassociate");
-
-  if (ReciprocalMath)
-    CmdArgs.push_back("-freciprocal-math");
-
-  if (!TrappingMath)
-    CmdArgs.push_back("-fno-trapping-math");
-
-  if (!DenormalFPMath.empty())
-    CmdArgs.push_back(
-        Args.MakeArgString("-fdenormal-fp-math=" + DenormalFPMath));
-
-  if (!FPContract.empty())
-    CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + FPContract));
-
-  ParseMRecip(D, Args, CmdArgs);
-
-  // -ffast-math enables the __FAST_MATH__ preprocessor macro, but check for the
-  // individual features enabled by -ffast-math instead of the option itself as
-  // that's consistent with gcc's behaviour.
-  if (!HonorINFs && !HonorNaNs && !MathErrno && AssociativeMath &&
-      ReciprocalMath && !SignedZeros && !TrappingMath)
-    CmdArgs.push_back("-ffast-math");
-
-  // Handle __FINITE_MATH_ONLY__ similarly.
-  if (!HonorINFs && !HonorNaNs)
-    CmdArgs.push_back("-ffinite-math-only");
-
-  if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) {
-    CmdArgs.push_back("-mfpmath");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  // Disable a codegen optimization for floating-point casts.
-  if (Args.hasFlag(options::OPT_fno_strict_float_cast_overflow,
-                   options::OPT_fstrict_float_cast_overflow, false))
-    CmdArgs.push_back("-fno-strict-float-cast-overflow");
-}
-
-static void RenderAnalyzerOptions(const ArgList &Args, ArgStringList &CmdArgs,
-                                  const llvm::Triple &Triple,
-                                  const InputInfo &Input) {
-  // Enable region store model by default.
-  CmdArgs.push_back("-analyzer-store=region");
-
-  // Treat blocks as analysis entry points.
-  CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks");
-
-  // Add default argument set.
-  if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) {
-    CmdArgs.push_back("-analyzer-checker=core");
-    CmdArgs.push_back("-analyzer-checker=apiModeling");
-
-    if (!Triple.isWindowsMSVCEnvironment()) {
-      CmdArgs.push_back("-analyzer-checker=unix");
-    } else {
-      // Enable "unix" checkers that also work on Windows.
-      CmdArgs.push_back("-analyzer-checker=unix.API");
-      CmdArgs.push_back("-analyzer-checker=unix.Malloc");
-      CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof");
-      CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator");
-      CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg");
-      CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg");
-    }
-
-    // Disable some unix checkers for PS4.
-    if (Triple.isPS4CPU()) {
-      CmdArgs.push_back("-analyzer-disable-checker=unix.API");
-      CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork");
-    }
-
-    if (Triple.isOSDarwin())
-      CmdArgs.push_back("-analyzer-checker=osx");
-
-    CmdArgs.push_back("-analyzer-checker=deadcode");
-
-    if (types::isCXX(Input.getType()))
-      CmdArgs.push_back("-analyzer-checker=cplusplus");
-
-    if (!Triple.isPS4CPU()) {
-      CmdArgs.push_back("-analyzer-checker=security.insecureAPI.UncheckedReturn");
-      CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw");
-      CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets");
-      CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp");
-      CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp");
-      CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork");
-    }
-
-    // Default nullability checks.
-    CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull");
-    CmdArgs.push_back("-analyzer-checker=nullability.NullReturnedFromNonnull");
-  }
-
-  // Set the output format. The default is plist, for (lame) historical reasons.
-  CmdArgs.push_back("-analyzer-output");
-  if (Arg *A = Args.getLastArg(options::OPT__analyzer_output))
-    CmdArgs.push_back(A->getValue());
-  else
-    CmdArgs.push_back("plist");
-
-  // Disable the presentation of standard compiler warnings when using
-  // --analyze.  We only want to show static analyzer diagnostics or frontend
-  // errors.
-  CmdArgs.push_back("-w");
-
-  // Add -Xanalyzer arguments when running as analyzer.
-  Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer);
-}
-
-static void RenderSSPOptions(const ToolChain &TC, const ArgList &Args,
-                             ArgStringList &CmdArgs, bool KernelOrKext) {
-  const llvm::Triple &EffectiveTriple = TC.getEffectiveTriple();
-
-  // NVPTX doesn't support stack protectors; from the compiler's perspective, it
-  // doesn't even have a stack!
-  if (EffectiveTriple.isNVPTX())
-    return;
-
-  // -stack-protector=0 is default.
-  unsigned StackProtectorLevel = 0;
-  unsigned DefaultStackProtectorLevel =
-      TC.GetDefaultStackProtectorLevel(KernelOrKext);
-
-  if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector,
-                               options::OPT_fstack_protector_all,
-                               options::OPT_fstack_protector_strong,
-                               options::OPT_fstack_protector)) {
-    if (A->getOption().matches(options::OPT_fstack_protector))
-      StackProtectorLevel =
-          std::max<unsigned>(LangOptions::SSPOn, DefaultStackProtectorLevel);
-    else if (A->getOption().matches(options::OPT_fstack_protector_strong))
-      StackProtectorLevel = LangOptions::SSPStrong;
-    else if (A->getOption().matches(options::OPT_fstack_protector_all))
-      StackProtectorLevel = LangOptions::SSPReq;
-  } else {
-    StackProtectorLevel = DefaultStackProtectorLevel;
-  }
-
-  if (StackProtectorLevel) {
-    CmdArgs.push_back("-stack-protector");
-    CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel)));
-  }
-
-  // --param ssp-buffer-size=
-  for (const Arg *A : Args.filtered(options::OPT__param)) {
-    StringRef Str(A->getValue());
-    if (Str.startswith("ssp-buffer-size=")) {
-      if (StackProtectorLevel) {
-        CmdArgs.push_back("-stack-protector-buffer-size");
-        // FIXME: Verify the argument is a valid integer.
-        CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16)));
-      }
-      A->claim();
-    }
-  }
-}
-
-static void RenderTrivialAutoVarInitOptions(const Driver &D,
-                                            const ToolChain &TC,
-                                            const ArgList &Args,
-                                            ArgStringList &CmdArgs) {
-  auto DefaultTrivialAutoVarInit = TC.GetDefaultTrivialAutoVarInit();
-  StringRef TrivialAutoVarInit = "";
-
-  for (const Arg *A : Args) {
-    switch (A->getOption().getID()) {
-    default:
-      continue;
-    case options::OPT_ftrivial_auto_var_init: {
-      A->claim();
-      StringRef Val = A->getValue();
-      if (Val == "uninitialized" || Val == "zero" || Val == "pattern")
-        TrivialAutoVarInit = Val;
-      else
-        D.Diag(diag::err_drv_unsupported_option_argument)
-            << A->getOption().getName() << Val;
-      break;
-    }
-    }
-  }
-
-  if (TrivialAutoVarInit.empty())
-    switch (DefaultTrivialAutoVarInit) {
-    case LangOptions::TrivialAutoVarInitKind::Uninitialized:
-      break;
-    case LangOptions::TrivialAutoVarInitKind::Pattern:
-      TrivialAutoVarInit = "pattern";
-      break;
-    case LangOptions::TrivialAutoVarInitKind::Zero:
-      TrivialAutoVarInit = "zero";
-      break;
-    }
-
-  if (!TrivialAutoVarInit.empty()) {
-    if (TrivialAutoVarInit == "zero" && !Args.hasArg(options::OPT_enable_trivial_var_init_zero))
-      D.Diag(diag::err_drv_trivial_auto_var_init_zero_disabled);
-    CmdArgs.push_back(
-        Args.MakeArgString("-ftrivial-auto-var-init=" + TrivialAutoVarInit));
-  }
-}
-
-static void RenderOpenCLOptions(const ArgList &Args, ArgStringList &CmdArgs) {
-  const unsigned ForwardedArguments[] = {
-      options::OPT_cl_opt_disable,
-      options::OPT_cl_strict_aliasing,
-      options::OPT_cl_single_precision_constant,
-      options::OPT_cl_finite_math_only,
-      options::OPT_cl_kernel_arg_info,
-      options::OPT_cl_unsafe_math_optimizations,
-      options::OPT_cl_fast_relaxed_math,
-      options::OPT_cl_mad_enable,
-      options::OPT_cl_no_signed_zeros,
-      options::OPT_cl_denorms_are_zero,
-      options::OPT_cl_fp32_correctly_rounded_divide_sqrt,
-      options::OPT_cl_uniform_work_group_size
-  };
-
-  if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) {
-    std::string CLStdStr = std::string("-cl-std=") + A->getValue();
-    CmdArgs.push_back(Args.MakeArgString(CLStdStr));
-  }
-
-  for (const auto &Arg : ForwardedArguments)
-    if (const auto *A = Args.getLastArg(Arg))
-      CmdArgs.push_back(Args.MakeArgString(A->getOption().getPrefixedName()));
-}
-
-static void RenderARCMigrateToolOptions(const Driver &D, const ArgList &Args,
-                                        ArgStringList &CmdArgs) {
-  bool ARCMTEnabled = false;
-  if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) {
-    if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check,
-                                       options::OPT_ccc_arcmt_modify,
-                                       options::OPT_ccc_arcmt_migrate)) {
-      ARCMTEnabled = true;
-      switch (A->getOption().getID()) {
-      default: llvm_unreachable("missed a case");
-      case options::OPT_ccc_arcmt_check:
-        CmdArgs.push_back("-arcmt-check");
-        break;
-      case options::OPT_ccc_arcmt_modify:
-        CmdArgs.push_back("-arcmt-modify");
-        break;
-      case options::OPT_ccc_arcmt_migrate:
-        CmdArgs.push_back("-arcmt-migrate");
-        CmdArgs.push_back("-mt-migrate-directory");
-        CmdArgs.push_back(A->getValue());
-
-        Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output);
-        Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors);
-        break;
-      }
-    }
-  } else {
-    Args.ClaimAllArgs(options::OPT_ccc_arcmt_check);
-    Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify);
-    Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate);
-  }
-
-  if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) {
-    if (ARCMTEnabled)
-      D.Diag(diag::err_drv_argument_not_allowed_with)
-          << A->getAsString(Args) << "-ccc-arcmt-migrate";
-
-    CmdArgs.push_back("-mt-migrate-directory");
-    CmdArgs.push_back(A->getValue());
-
-    if (!Args.hasArg(options::OPT_objcmt_migrate_literals,
-                     options::OPT_objcmt_migrate_subscripting,
-                     options::OPT_objcmt_migrate_property)) {
-      // None specified, means enable them all.
-      CmdArgs.push_back("-objcmt-migrate-literals");
-      CmdArgs.push_back("-objcmt-migrate-subscripting");
-      CmdArgs.push_back("-objcmt-migrate-property");
-    } else {
-      Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals);
-      Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting);
-      Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property);
-    }
-  } else {
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init);
-    Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path);
-  }
-}
-
-static void RenderBuiltinOptions(const ToolChain &TC, const llvm::Triple &T,
-                                 const ArgList &Args, ArgStringList &CmdArgs) {
-  // -fbuiltin is default unless -mkernel is used.
-  bool UseBuiltins =
-      Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin,
-                   !Args.hasArg(options::OPT_mkernel));
-  if (!UseBuiltins)
-    CmdArgs.push_back("-fno-builtin");
-
-  // -ffreestanding implies -fno-builtin.
-  if (Args.hasArg(options::OPT_ffreestanding))
-    UseBuiltins = false;
-
-  // Process the -fno-builtin-* options.
-  for (const auto &Arg : Args) {
-    const Option &O = Arg->getOption();
-    if (!O.matches(options::OPT_fno_builtin_))
-      continue;
-
-    Arg->claim();
-
-    // If -fno-builtin is specified, then there's no need to pass the option to
-    // the frontend.
-    if (!UseBuiltins)
-      continue;
-
-    StringRef FuncName = Arg->getValue();
-    CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName));
-  }
-
-  // le32-specific flags:
-  //  -fno-math-builtin: clang should not convert math builtins to intrinsics
-  //                     by default.
-  if (TC.getArch() == llvm::Triple::le32)
-    CmdArgs.push_back("-fno-math-builtin");
-}
-
-void Driver::getDefaultModuleCachePath(SmallVectorImpl<char> &Result) {
-  llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false, Result);
-  llvm::sys::path::append(Result, "org.llvm.clang.");
-  appendUserToPath(Result);
-  llvm::sys::path::append(Result, "ModuleCache");
-}
-
-static void RenderModulesOptions(Compilation &C, const Driver &D,
-                                 const ArgList &Args, const InputInfo &Input,
-                                 const InputInfo &Output,
-                                 ArgStringList &CmdArgs, bool &HaveModules) {
-  // -fmodules enables the use of precompiled modules (off by default).
-  // Users can pass -fno-cxx-modules to turn off modules support for
-  // C++/Objective-C++ programs.
-  bool HaveClangModules = false;
-  if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) {
-    bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules,
-                                     options::OPT_fno_cxx_modules, true);
-    if (AllowedInCXX || !types::isCXX(Input.getType())) {
-      CmdArgs.push_back("-fmodules");
-      HaveClangModules = true;
-    }
-  }
-
-  HaveModules = HaveClangModules;
-  if (Args.hasArg(options::OPT_fmodules_ts)) {
-    CmdArgs.push_back("-fmodules-ts");
-    HaveModules = true;
-  }
-
-  // -fmodule-maps enables implicit reading of module map files. By default,
-  // this is enabled if we are using Clang's flavor of precompiled modules.
-  if (Args.hasFlag(options::OPT_fimplicit_module_maps,
-                   options::OPT_fno_implicit_module_maps, HaveClangModules))
-    CmdArgs.push_back("-fimplicit-module-maps");
-
-  // -fmodules-decluse checks that modules used are declared so (off by default)
-  if (Args.hasFlag(options::OPT_fmodules_decluse,
-                   options::OPT_fno_modules_decluse, false))
-    CmdArgs.push_back("-fmodules-decluse");
-
-  // -fmodules-strict-decluse is like -fmodule-decluse, but also checks that
-  // all #included headers are part of modules.
-  if (Args.hasFlag(options::OPT_fmodules_strict_decluse,
-                   options::OPT_fno_modules_strict_decluse, false))
-    CmdArgs.push_back("-fmodules-strict-decluse");
-
-  // -fno-implicit-modules turns off implicitly compiling modules on demand.
-  bool ImplicitModules = false;
-  if (!Args.hasFlag(options::OPT_fimplicit_modules,
-                    options::OPT_fno_implicit_modules, HaveClangModules)) {
-    if (HaveModules)
-      CmdArgs.push_back("-fno-implicit-modules");
-  } else if (HaveModules) {
-    ImplicitModules = true;
-    // -fmodule-cache-path specifies where our implicitly-built module files
-    // should be written.
-    SmallString<128> Path;
-    if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path))
-      Path = A->getValue();
-
-    if (C.isForDiagnostics()) {
-      // When generating crash reports, we want to emit the modules along with
-      // the reproduction sources, so we ignore any provided module path.
-      Path = Output.getFilename();
-      llvm::sys::path::replace_extension(Path, ".cache");
-      llvm::sys::path::append(Path, "modules");
-    } else if (Path.empty()) {
-      // No module path was provided: use the default.
-      Driver::getDefaultModuleCachePath(Path);
-    }
-
-    const char Arg[] = "-fmodules-cache-path=";
-    Path.insert(Path.begin(), Arg, Arg + strlen(Arg));
-    CmdArgs.push_back(Args.MakeArgString(Path));
-  }
-
-  if (HaveModules) {
-    // -fprebuilt-module-path specifies where to load the prebuilt module files.
-    for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) {
-      CmdArgs.push_back(Args.MakeArgString(
-          std::string("-fprebuilt-module-path=") + A->getValue()));
-      A->claim();
-    }
-  }
-
-  // -fmodule-name specifies the module that is currently being built (or
-  // used for header checking by -fmodule-maps).
-  Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ);
-
-  // -fmodule-map-file can be used to specify files containing module
-  // definitions.
-  Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file);
-
-  // -fbuiltin-module-map can be used to load the clang
-  // builtin headers modulemap file.
-  if (Args.hasArg(options::OPT_fbuiltin_module_map)) {
-    SmallString<128> BuiltinModuleMap(D.ResourceDir);
-    llvm::sys::path::append(BuiltinModuleMap, "include");
-    llvm::sys::path::append(BuiltinModuleMap, "module.modulemap");
-    if (llvm::sys::fs::exists(BuiltinModuleMap))
-      CmdArgs.push_back(
-          Args.MakeArgString("-fmodule-map-file=" + BuiltinModuleMap));
-  }
-
-  // The -fmodule-file=<name>=<file> form specifies the mapping of module
-  // names to precompiled module files (the module is loaded only if used).
-  // The -fmodule-file=<file> form can be used to unconditionally load
-  // precompiled module files (whether used or not).
-  if (HaveModules)
-    Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file);
-  else
-    Args.ClaimAllArgs(options::OPT_fmodule_file);
-
-  // When building modules and generating crashdumps, we need to dump a module
-  // dependency VFS alongside the output.
-  if (HaveClangModules && C.isForDiagnostics()) {
-    SmallString<128> VFSDir(Output.getFilename());
-    llvm::sys::path::replace_extension(VFSDir, ".cache");
-    // Add the cache directory as a temp so the crash diagnostics pick it up.
-    C.addTempFile(Args.MakeArgString(VFSDir));
-
-    llvm::sys::path::append(VFSDir, "vfs");
-    CmdArgs.push_back("-module-dependency-dir");
-    CmdArgs.push_back(Args.MakeArgString(VFSDir));
-  }
-
-  if (HaveClangModules)
-    Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path);
-
-  // Pass through all -fmodules-ignore-macro arguments.
-  Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro);
-  Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval);
-  Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after);
-
-  Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp);
-
-  if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) {
-    if (Args.hasArg(options::OPT_fbuild_session_timestamp))
-      D.Diag(diag::err_drv_argument_not_allowed_with)
-          << A->getAsString(Args) << "-fbuild-session-timestamp";
-
-    llvm::sys::fs::file_status Status;
-    if (llvm::sys::fs::status(A->getValue(), Status))
-      D.Diag(diag::err_drv_no_such_file) << A->getValue();
-    CmdArgs.push_back(
-        Args.MakeArgString("-fbuild-session-timestamp=" +
-                           Twine((uint64_t)Status.getLastModificationTime()
-                                     .time_since_epoch()
-                                     .count())));
-  }
-
-  if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) {
-    if (!Args.getLastArg(options::OPT_fbuild_session_timestamp,
-                         options::OPT_fbuild_session_file))
-      D.Diag(diag::err_drv_modules_validate_once_requires_timestamp);
-
-    Args.AddLastArg(CmdArgs,
-                    options::OPT_fmodules_validate_once_per_build_session);
-  }
-
-  if (Args.hasFlag(options::OPT_fmodules_validate_system_headers,
-                   options::OPT_fno_modules_validate_system_headers,
-                   ImplicitModules))
-    CmdArgs.push_back("-fmodules-validate-system-headers");
-
-  Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation);
-}
-
-static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T,
-                                   ArgStringList &CmdArgs) {
-  // -fsigned-char is default.
-  if (const Arg *A = Args.getLastArg(options::OPT_fsigned_char,
-                                     options::OPT_fno_signed_char,
-                                     options::OPT_funsigned_char,
-                                     options::OPT_fno_unsigned_char)) {
-    if (A->getOption().matches(options::OPT_funsigned_char) ||
-        A->getOption().matches(options::OPT_fno_signed_char)) {
-      CmdArgs.push_back("-fno-signed-char");
-    }
-  } else if (!isSignedCharDefault(T)) {
-    CmdArgs.push_back("-fno-signed-char");
-  }
-
-  // The default depends on the language standard.
-  if (const Arg *A =
-          Args.getLastArg(options::OPT_fchar8__t, options::OPT_fno_char8__t))
-    A->render(Args, CmdArgs);
-
-  if (const Arg *A = Args.getLastArg(options::OPT_fshort_wchar,
-                                     options::OPT_fno_short_wchar)) {
-    if (A->getOption().matches(options::OPT_fshort_wchar)) {
-      CmdArgs.push_back("-fwchar-type=short");
-      CmdArgs.push_back("-fno-signed-wchar");
-    } else {
-      bool IsARM = T.isARM() || T.isThumb() || T.isAArch64();
-      CmdArgs.push_back("-fwchar-type=int");
-      if (IsARM && !(T.isOSWindows() || T.isOSNetBSD() ||
-                     T.isOSOpenBSD()))
-        CmdArgs.push_back("-fno-signed-wchar");
-      else
-        CmdArgs.push_back("-fsigned-wchar");
-    }
-  }
-}
-
-static void RenderObjCOptions(const ToolChain &TC, const Driver &D,
-                              const llvm::Triple &T, const ArgList &Args,
-                              ObjCRuntime &Runtime, bool InferCovariantReturns,
-                              const InputInfo &Input, ArgStringList &CmdArgs) {
-  const llvm::Triple::ArchType Arch = TC.getArch();
-
-  // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and legacy
-  // is the default. Except for deployment target of 10.5, next runtime is
-  // always legacy dispatch and -fno-objc-legacy-dispatch gets ignored silently.
-  if (Runtime.isNonFragile()) {
-    if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch,
-                      options::OPT_fno_objc_legacy_dispatch,
-                      Runtime.isLegacyDispatchDefaultForArch(Arch))) {
-      if (TC.UseObjCMixedDispatch())
-        CmdArgs.push_back("-fobjc-dispatch-method=mixed");
-      else
-        CmdArgs.push_back("-fobjc-dispatch-method=non-legacy");
-    }
-  }
-
-  // When ObjectiveC legacy runtime is in effect on MacOSX, turn on the option
-  // to do Array/Dictionary subscripting by default.
-  if (Arch == llvm::Triple::x86 && T.isMacOSX() &&
-      Runtime.getKind() == ObjCRuntime::FragileMacOSX && Runtime.isNeXTFamily())
-    CmdArgs.push_back("-fobjc-subscripting-legacy-runtime");
-
-  // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc.
-  // NOTE: This logic is duplicated in ToolChains.cpp.
-  if (isObjCAutoRefCount(Args)) {
-    TC.CheckObjCARC();
-
-    CmdArgs.push_back("-fobjc-arc");
-
-    // FIXME: It seems like this entire block, and several around it should be
-    // wrapped in isObjC, but for now we just use it here as this is where it
-    // was being used previously.
-    if (types::isCXX(Input.getType()) && types::isObjC(Input.getType())) {
-      if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx)
-        CmdArgs.push_back("-fobjc-arc-cxxlib=libc++");
-      else
-        CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++");
-    }
-
-    // Allow the user to enable full exceptions code emission.
-    // We default off for Objective-C, on for Objective-C++.
-    if (Args.hasFlag(options::OPT_fobjc_arc_exceptions,
-                     options::OPT_fno_objc_arc_exceptions,
-                     /*default=*/types::isCXX(Input.getType())))
-      CmdArgs.push_back("-fobjc-arc-exceptions");
-  }
-
-  // Silence warning for full exception code emission options when explicitly
-  // set to use no ARC.
-  if (Args.hasArg(options::OPT_fno_objc_arc)) {
-    Args.ClaimAllArgs(options::OPT_fobjc_arc_exceptions);
-    Args.ClaimAllArgs(options::OPT_fno_objc_arc_exceptions);
-  }
-
-  // Allow the user to control whether messages can be converted to runtime
-  // functions.
-  if (types::isObjC(Input.getType())) {
-    auto *Arg = Args.getLastArg(
-        options::OPT_fobjc_convert_messages_to_runtime_calls,
-        options::OPT_fno_objc_convert_messages_to_runtime_calls);
-    if (Arg &&
-        Arg->getOption().matches(
-            options::OPT_fno_objc_convert_messages_to_runtime_calls))
-      CmdArgs.push_back("-fno-objc-convert-messages-to-runtime-calls");
-  }
-
-  // -fobjc-infer-related-result-type is the default, except in the Objective-C
-  // rewriter.
-  if (InferCovariantReturns)
-    CmdArgs.push_back("-fno-objc-infer-related-result-type");
-
-  // Pass down -fobjc-weak or -fno-objc-weak if present.
-  if (types::isObjC(Input.getType())) {
-    auto WeakArg =
-        Args.getLastArg(options::OPT_fobjc_weak, options::OPT_fno_objc_weak);
-    if (!WeakArg) {
-      // nothing to do
-    } else if (!Runtime.allowsWeak()) {
-      if (WeakArg->getOption().matches(options::OPT_fobjc_weak))
-        D.Diag(diag::err_objc_weak_unsupported);
-    } else {
-      WeakArg->render(Args, CmdArgs);
-    }
-  }
-}
-
-static void RenderDiagnosticsOptions(const Driver &D, const ArgList &Args,
-                                     ArgStringList &CmdArgs) {
-  bool CaretDefault = true;
-  bool ColumnDefault = true;
-
-  if (const Arg *A = Args.getLastArg(options::OPT__SLASH_diagnostics_classic,
-                                     options::OPT__SLASH_diagnostics_column,
-                                     options::OPT__SLASH_diagnostics_caret)) {
-    switch (A->getOption().getID()) {
-    case options::OPT__SLASH_diagnostics_caret:
-      CaretDefault = true;
-      ColumnDefault = true;
-      break;
-    case options::OPT__SLASH_diagnostics_column:
-      CaretDefault = false;
-      ColumnDefault = true;
-      break;
-    case options::OPT__SLASH_diagnostics_classic:
-      CaretDefault = false;
-      ColumnDefault = false;
-      break;
-    }
-  }
-
-  // -fcaret-diagnostics is default.
-  if (!Args.hasFlag(options::OPT_fcaret_diagnostics,
-                    options::OPT_fno_caret_diagnostics, CaretDefault))
-    CmdArgs.push_back("-fno-caret-diagnostics");
-
-  // -fdiagnostics-fixit-info is default, only pass non-default.
-  if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info,
-                    options::OPT_fno_diagnostics_fixit_info))
-    CmdArgs.push_back("-fno-diagnostics-fixit-info");
-
-  // Enable -fdiagnostics-show-option by default.
-  if (Args.hasFlag(options::OPT_fdiagnostics_show_option,
-                   options::OPT_fno_diagnostics_show_option))
-    CmdArgs.push_back("-fdiagnostics-show-option");
-
-  if (const Arg *A =
-          Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) {
-    CmdArgs.push_back("-fdiagnostics-show-category");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness,
-                   options::OPT_fno_diagnostics_show_hotness, false))
-    CmdArgs.push_back("-fdiagnostics-show-hotness");
-
-  if (const Arg *A =
-          Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) {
-    std::string Opt =
-        std::string("-fdiagnostics-hotness-threshold=") + A->getValue();
-    CmdArgs.push_back(Args.MakeArgString(Opt));
-  }
-
-  if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) {
-    CmdArgs.push_back("-fdiagnostics-format");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (const Arg *A = Args.getLastArg(
-          options::OPT_fdiagnostics_show_note_include_stack,
-          options::OPT_fno_diagnostics_show_note_include_stack)) {
-    const Option &O = A->getOption();
-    if (O.matches(options::OPT_fdiagnostics_show_note_include_stack))
-      CmdArgs.push_back("-fdiagnostics-show-note-include-stack");
-    else
-      CmdArgs.push_back("-fno-diagnostics-show-note-include-stack");
-  }
-
-  // Color diagnostics are parsed by the driver directly from argv and later
-  // re-parsed to construct this job; claim any possible color diagnostic here
-  // to avoid warn_drv_unused_argument and diagnose bad
-  // OPT_fdiagnostics_color_EQ values.
-  for (const Arg *A : Args) {
-    const Option &O = A->getOption();
-    if (!O.matches(options::OPT_fcolor_diagnostics) &&
-        !O.matches(options::OPT_fdiagnostics_color) &&
-        !O.matches(options::OPT_fno_color_diagnostics) &&
-        !O.matches(options::OPT_fno_diagnostics_color) &&
-        !O.matches(options::OPT_fdiagnostics_color_EQ))
-      continue;
-
-    if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
-      StringRef Value(A->getValue());
-      if (Value != "always" && Value != "never" && Value != "auto")
-        D.Diag(diag::err_drv_clang_unsupported)
-            << ("-fdiagnostics-color=" + Value).str();
-    }
-    A->claim();
-  }
-
-  if (D.getDiags().getDiagnosticOptions().ShowColors)
-    CmdArgs.push_back("-fcolor-diagnostics");
-
-  if (Args.hasArg(options::OPT_fansi_escape_codes))
-    CmdArgs.push_back("-fansi-escape-codes");
-
-  if (!Args.hasFlag(options::OPT_fshow_source_location,
-                    options::OPT_fno_show_source_location))
-    CmdArgs.push_back("-fno-show-source-location");
-
-  if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths))
-    CmdArgs.push_back("-fdiagnostics-absolute-paths");
-
-  if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column,
-                    ColumnDefault))
-    CmdArgs.push_back("-fno-show-column");
-
-  if (!Args.hasFlag(options::OPT_fspell_checking,
-                    options::OPT_fno_spell_checking))
-    CmdArgs.push_back("-fno-spell-checking");
-}
-
-enum class DwarfFissionKind { None, Split, Single };
-
-static DwarfFissionKind getDebugFissionKind(const Driver &D,
-                                            const ArgList &Args, Arg *&Arg) {
-  Arg =
-      Args.getLastArg(options::OPT_gsplit_dwarf, options::OPT_gsplit_dwarf_EQ);
-  if (!Arg)
-    return DwarfFissionKind::None;
-
-  if (Arg->getOption().matches(options::OPT_gsplit_dwarf))
-    return DwarfFissionKind::Split;
-
-  StringRef Value = Arg->getValue();
-  if (Value == "split")
-    return DwarfFissionKind::Split;
-  if (Value == "single")
-    return DwarfFissionKind::Single;
-
-  D.Diag(diag::err_drv_unsupported_option_argument)
-      << Arg->getOption().getName() << Arg->getValue();
-  return DwarfFissionKind::None;
-}
-
-static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
-                               const llvm::Triple &T, const ArgList &Args,
-                               bool EmitCodeView, bool IsWindowsMSVC,
-                               ArgStringList &CmdArgs,
-                               codegenoptions::DebugInfoKind &DebugInfoKind,
-                               DwarfFissionKind &DwarfFission) {
-  if (Args.hasFlag(options::OPT_fdebug_info_for_profiling,
-                   options::OPT_fno_debug_info_for_profiling, false) &&
-      checkDebugInfoOption(
-          Args.getLastArg(options::OPT_fdebug_info_for_profiling), Args, D, TC))
-    CmdArgs.push_back("-fdebug-info-for-profiling");
-
-  // The 'g' groups options involve a somewhat intricate sequence of decisions
-  // about what to pass from the driver to the frontend, but by the time they
-  // reach cc1 they've been factored into three well-defined orthogonal choices:
-  //  * what level of debug info to generate
-  //  * what dwarf version to write
-  //  * what debugger tuning to use
-  // This avoids having to monkey around further in cc1 other than to disable
-  // codeview if not running in a Windows environment. Perhaps even that
-  // decision should be made in the driver as well though.
-  unsigned DWARFVersion = 0;
-  llvm::DebuggerKind DebuggerTuning = TC.getDefaultDebuggerTuning();
-
-  bool SplitDWARFInlining =
-      Args.hasFlag(options::OPT_fsplit_dwarf_inlining,
-                   options::OPT_fno_split_dwarf_inlining, true);
-
-  Args.ClaimAllArgs(options::OPT_g_Group);
-
-  Arg* SplitDWARFArg;
-  DwarfFission = getDebugFissionKind(D, Args, SplitDWARFArg);
-
-  if (DwarfFission != DwarfFissionKind::None &&
-      !checkDebugInfoOption(SplitDWARFArg, Args, D, TC)) {
-    DwarfFission = DwarfFissionKind::None;
-    SplitDWARFInlining = false;
-  }
-
-  if (const Arg *A = Args.getLastArg(options::OPT_g_Group)) {
-    if (checkDebugInfoOption(A, Args, D, TC)) {
-      // If the last option explicitly specified a debug-info level, use it.
-      if (A->getOption().matches(options::OPT_gN_Group)) {
-        DebugInfoKind = DebugLevelToInfoKind(*A);
-        // If you say "-gsplit-dwarf -gline-tables-only", -gsplit-dwarf loses.
-        // But -gsplit-dwarf is not a g_group option, hence we have to check the
-        // order explicitly. If -gsplit-dwarf wins, we fix DebugInfoKind later.
-        // This gets a bit more complicated if you've disabled inline info in
-        // the skeleton CUs (SplitDWARFInlining) - then there's value in
-        // composing split-dwarf and line-tables-only, so let those compose
-        // naturally in that case. And if you just turned off debug info,
-        // (-gsplit-dwarf -g0) - do that.
-        if (DwarfFission != DwarfFissionKind::None) {
-          if (A->getIndex() > SplitDWARFArg->getIndex()) {
-            if (DebugInfoKind == codegenoptions::NoDebugInfo ||
-                DebugInfoKind == codegenoptions::DebugDirectivesOnly ||
-                (DebugInfoKind == codegenoptions::DebugLineTablesOnly &&
-                 SplitDWARFInlining))
-              DwarfFission = DwarfFissionKind::None;
-          } else if (SplitDWARFInlining)
-            DebugInfoKind = codegenoptions::NoDebugInfo;
-        }
-      } else {
-        // For any other 'g' option, use Limited.
-        DebugInfoKind = codegenoptions::LimitedDebugInfo;
-      }
-    } else {
-      DebugInfoKind = codegenoptions::LimitedDebugInfo;
-    }
-  }
-
-  // If a debugger tuning argument appeared, remember it.
-  if (const Arg *A =
-          Args.getLastArg(options::OPT_gTune_Group, options::OPT_ggdbN_Group)) {
-    if (checkDebugInfoOption(A, Args, D, TC)) {
-      if (A->getOption().matches(options::OPT_glldb))
-        DebuggerTuning = llvm::DebuggerKind::LLDB;
-      else if (A->getOption().matches(options::OPT_gsce))
-        DebuggerTuning = llvm::DebuggerKind::SCE;
-      else
-        DebuggerTuning = llvm::DebuggerKind::GDB;
-    }
-  }
-
-  // If a -gdwarf argument appeared, remember it.
-  if (const Arg *A =
-          Args.getLastArg(options::OPT_gdwarf_2, options::OPT_gdwarf_3,
-                          options::OPT_gdwarf_4, options::OPT_gdwarf_5))
-    if (checkDebugInfoOption(A, Args, D, TC))
-      DWARFVersion = DwarfVersionNum(A->getSpelling());
-
-  if (const Arg *A = Args.getLastArg(options::OPT_gcodeview)) {
-    if (checkDebugInfoOption(A, Args, D, TC))
-      EmitCodeView = true;
-  }
-
-  // If the user asked for debug info but did not explicitly specify -gcodeview
-  // or -gdwarf, ask the toolchain for the default format.
-  if (!EmitCodeView && DWARFVersion == 0 &&
-      DebugInfoKind != codegenoptions::NoDebugInfo) {
-    switch (TC.getDefaultDebugFormat()) {
-    case codegenoptions::DIF_CodeView:
-      EmitCodeView = true;
-      break;
-    case codegenoptions::DIF_DWARF:
-      DWARFVersion = TC.GetDefaultDwarfVersion();
-      break;
-    }
-  }
-
-  // -gline-directives-only supported only for the DWARF debug info.
-  if (DWARFVersion == 0 && DebugInfoKind == codegenoptions::DebugDirectivesOnly)
-    DebugInfoKind = codegenoptions::NoDebugInfo;
-
-  // We ignore flag -gstrict-dwarf for now.
-  // And we handle flag -grecord-gcc-switches later with DWARFDebugFlags.
-  Args.ClaimAllArgs(options::OPT_g_flags_Group);
-
-  // Column info is included by default for everything except SCE and
-  // CodeView. Clang doesn't track end columns, just starting columns, which,
-  // in theory, is fine for CodeView (and PDB).  In practice, however, the
-  // Microsoft debuggers don't handle missing end columns well, so it's better
-  // not to include any column info.
-  if (const Arg *A = Args.getLastArg(options::OPT_gcolumn_info))
-    (void)checkDebugInfoOption(A, Args, D, TC);
-  if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info,
-                   /*Default=*/!EmitCodeView &&
-                       DebuggerTuning != llvm::DebuggerKind::SCE))
-    CmdArgs.push_back("-dwarf-column-info");
-
-  // FIXME: Move backend command line options to the module.
-  // If -gline-tables-only or -gline-directives-only is the last option it wins.
-  if (const Arg *A = Args.getLastArg(options::OPT_gmodules))
-    if (checkDebugInfoOption(A, Args, D, TC)) {
-      if (DebugInfoKind != codegenoptions::DebugLineTablesOnly &&
-          DebugInfoKind != codegenoptions::DebugDirectivesOnly) {
-        DebugInfoKind = codegenoptions::LimitedDebugInfo;
-        CmdArgs.push_back("-dwarf-ext-refs");
-        CmdArgs.push_back("-fmodule-format=obj");
-      }
-    }
-
-  // -gsplit-dwarf should turn on -g and enable the backend dwarf
-  // splitting and extraction.
-  // FIXME: Currently only works on Linux and Fuchsia.
-  if (T.isOSLinux() || T.isOSFuchsia()) {
-    if (!SplitDWARFInlining)
-      CmdArgs.push_back("-fno-split-dwarf-inlining");
-
-    if (DwarfFission != DwarfFissionKind::None) {
-      if (DebugInfoKind == codegenoptions::NoDebugInfo)
-        DebugInfoKind = codegenoptions::LimitedDebugInfo;
-
-      if (DwarfFission == DwarfFissionKind::Single)
-        CmdArgs.push_back("-enable-split-dwarf=single");
-      else
-        CmdArgs.push_back("-enable-split-dwarf");
-    }
-  }
-
-  // After we've dealt with all combinations of things that could
-  // make DebugInfoKind be other than None or DebugLineTablesOnly,
-  // figure out if we need to "upgrade" it to standalone debug info.
-  // We parse these two '-f' options whether or not they will be used,
-  // to claim them even if you wrote "-fstandalone-debug -gline-tables-only"
-  bool NeedFullDebug = Args.hasFlag(options::OPT_fstandalone_debug,
-                                    options::OPT_fno_standalone_debug,
-                                    TC.GetDefaultStandaloneDebug());
-  if (const Arg *A = Args.getLastArg(options::OPT_fstandalone_debug))
-    (void)checkDebugInfoOption(A, Args, D, TC);
-  if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug)
-    DebugInfoKind = codegenoptions::FullDebugInfo;
-
-  if (Args.hasFlag(options::OPT_gembed_source, options::OPT_gno_embed_source,
-                   false)) {
-    // Source embedding is a vendor extension to DWARF v5. By now we have
-    // checked if a DWARF version was stated explicitly, and have otherwise
-    // fallen back to the target default, so if this is still not at least 5
-    // we emit an error.
-    const Arg *A = Args.getLastArg(options::OPT_gembed_source);
-    if (DWARFVersion < 5)
-      D.Diag(diag::err_drv_argument_only_allowed_with)
-          << A->getAsString(Args) << "-gdwarf-5";
-    else if (checkDebugInfoOption(A, Args, D, TC))
-      CmdArgs.push_back("-gembed-source");
-  }
-
-  if (EmitCodeView) {
-    CmdArgs.push_back("-gcodeview");
-
-    // Emit codeview type hashes if requested.
-    if (Args.hasFlag(options::OPT_gcodeview_ghash,
-                     options::OPT_gno_codeview_ghash, false)) {
-      CmdArgs.push_back("-gcodeview-ghash");
-    }
-  }
-
-  // Adjust the debug info kind for the given toolchain.
-  TC.adjustDebugInfoKind(DebugInfoKind, Args);
-
-  RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DWARFVersion,
-                          DebuggerTuning);
-
-  // -fdebug-macro turns on macro debug info generation.
-  if (Args.hasFlag(options::OPT_fdebug_macro, options::OPT_fno_debug_macro,
-                   false))
-    if (checkDebugInfoOption(Args.getLastArg(options::OPT_fdebug_macro), Args,
-                             D, TC))
-      CmdArgs.push_back("-debug-info-macro");
-
-  // -ggnu-pubnames turns on gnu style pubnames in the backend.
-  const auto *PubnamesArg =
-      Args.getLastArg(options::OPT_ggnu_pubnames, options::OPT_gno_gnu_pubnames,
-                      options::OPT_gpubnames, options::OPT_gno_pubnames);
-  if (DwarfFission != DwarfFissionKind::None ||
-      DebuggerTuning == llvm::DebuggerKind::LLDB ||
-      (PubnamesArg && checkDebugInfoOption(PubnamesArg, Args, D, TC)))
-    if (!PubnamesArg ||
-        (!PubnamesArg->getOption().matches(options::OPT_gno_gnu_pubnames) &&
-         !PubnamesArg->getOption().matches(options::OPT_gno_pubnames)))
-      CmdArgs.push_back(PubnamesArg && PubnamesArg->getOption().matches(
-                                           options::OPT_gpubnames)
-                            ? "-gpubnames"
-                            : "-ggnu-pubnames");
-
-  if (Args.hasFlag(options::OPT_fdebug_ranges_base_address,
-                   options::OPT_fno_debug_ranges_base_address, false)) {
-    CmdArgs.push_back("-fdebug-ranges-base-address");
-  }
-
-  // -gdwarf-aranges turns on the emission of the aranges section in the
-  // backend.
-  // Always enabled for SCE tuning.
-  bool NeedAranges = DebuggerTuning == llvm::DebuggerKind::SCE;
-  if (const Arg *A = Args.getLastArg(options::OPT_gdwarf_aranges))
-    NeedAranges = checkDebugInfoOption(A, Args, D, TC) || NeedAranges;
-  if (NeedAranges) {
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back("-generate-arange-section");
-  }
-
-  if (Args.hasFlag(options::OPT_fdebug_types_section,
-                   options::OPT_fno_debug_types_section, false)) {
-    if (!T.isOSBinFormatELF()) {
-      D.Diag(diag::err_drv_unsupported_opt_for_target)
-          << Args.getLastArg(options::OPT_fdebug_types_section)
-                 ->getAsString(Args)
-          << T.getTriple();
-    } else if (checkDebugInfoOption(
-                   Args.getLastArg(options::OPT_fdebug_types_section), Args, D,
-                   TC)) {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-generate-type-units");
-    }
-  }
-
-  // Decide how to render forward declarations of template instantiations.
-  // SCE wants full descriptions, others just get them in the name.
-  if (DebuggerTuning == llvm::DebuggerKind::SCE)
-    CmdArgs.push_back("-debug-forward-template-params");
-
-  // Do we need to explicitly import anonymous namespaces into the parent
-  // scope?
-  if (DebuggerTuning == llvm::DebuggerKind::SCE)
-    CmdArgs.push_back("-dwarf-explicit-import");
-
-  RenderDebugInfoCompressionArgs(Args, CmdArgs, D, TC);
-}
-
-void Clang::ConstructJob(Compilation &C, const JobAction &JA,
-                         const InputInfo &Output, const InputInfoList &Inputs,
-                         const ArgList &Args, const char *LinkingOutput) const {
-  const auto &TC = getToolChain();
-  const llvm::Triple &RawTriple = TC.getTriple();
-  const llvm::Triple &Triple = TC.getEffectiveTriple();
-  const std::string &TripleStr = Triple.getTriple();
-
-  bool KernelOrKext =
-      Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext);
-  const Driver &D = TC.getDriver();
-  ArgStringList CmdArgs;
-
-  // Check number of inputs for sanity. We need at least one input.
-  assert(Inputs.size() >= 1 && "Must have at least one input.");
-  // CUDA/HIP compilation may have multiple inputs (source file + results of
-  // device-side compilations). OpenMP device jobs also take the host IR as a
-  // second input. Module precompilation accepts a list of header files to
-  // include as part of the module. All other jobs are expected to have exactly
-  // one input.
-  bool IsCuda = JA.isOffloading(Action::OFK_Cuda);
-  bool IsHIP = JA.isOffloading(Action::OFK_HIP);
-  bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP);
-  bool IsHeaderModulePrecompile = isa<HeaderModulePrecompileJobAction>(JA);
-
-  // A header module compilation doesn't have a main input file, so invent a
-  // fake one as a placeholder.
-  const char *ModuleName = [&]{
-    auto *ModuleNameArg = Args.getLastArg(options::OPT_fmodule_name_EQ);
-    return ModuleNameArg ? ModuleNameArg->getValue() : "";
-  }();
-  InputInfo HeaderModuleInput(Inputs[0].getType(), ModuleName, ModuleName);
-
-  const InputInfo &Input =
-      IsHeaderModulePrecompile ? HeaderModuleInput : Inputs[0];
-
-  InputInfoList ModuleHeaderInputs;
-  const InputInfo *CudaDeviceInput = nullptr;
-  const InputInfo *OpenMPDeviceInput = nullptr;
-  for (const InputInfo &I : Inputs) {
-    if (&I == &Input) {
-      // This is the primary input.
-    } else if (IsHeaderModulePrecompile &&
-               types::getPrecompiledType(I.getType()) == types::TY_PCH) {
-      types::ID Expected = HeaderModuleInput.getType();
-      if (I.getType() != Expected) {
-        D.Diag(diag::err_drv_module_header_wrong_kind)
-            << I.getFilename() << types::getTypeName(I.getType())
-            << types::getTypeName(Expected);
-      }
-      ModuleHeaderInputs.push_back(I);
-    } else if ((IsCuda || IsHIP) && !CudaDeviceInput) {
-      CudaDeviceInput = &I;
-    } else if (IsOpenMPDevice && !OpenMPDeviceInput) {
-      OpenMPDeviceInput = &I;
-    } else {
-      llvm_unreachable("unexpectedly given multiple inputs");
-    }
-  }
-
-  const llvm::Triple *AuxTriple = IsCuda ? TC.getAuxTriple() : nullptr;
-  bool IsWindowsGNU = RawTriple.isWindowsGNUEnvironment();
-  bool IsWindowsCygnus = RawTriple.isWindowsCygwinEnvironment();
-  bool IsWindowsMSVC = RawTriple.isWindowsMSVCEnvironment();
-  bool IsIAMCU = RawTriple.isOSIAMCU();
-
-  // Adjust IsWindowsXYZ for CUDA/HIP compilations.  Even when compiling in
-  // device mode (i.e., getToolchain().getTriple() is NVPTX/AMDGCN, not
-  // Windows), we need to pass Windows-specific flags to cc1.
-  if (IsCuda || IsHIP) {
-    IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment();
-    IsWindowsGNU |= AuxTriple && AuxTriple->isWindowsGNUEnvironment();
-    IsWindowsCygnus |= AuxTriple && AuxTriple->isWindowsCygwinEnvironment();
-  }
-
-  // C++ is not supported for IAMCU.
-  if (IsIAMCU && types::isCXX(Input.getType()))
-    D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU";
-
-  // Invoke ourselves in -cc1 mode.
-  //
-  // FIXME: Implement custom jobs for internal actions.
-  CmdArgs.push_back("-cc1");
-
-  // Add the "effective" target triple.
-  CmdArgs.push_back("-triple");
-  CmdArgs.push_back(Args.MakeArgString(TripleStr));
-
-  if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) {
-    DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args);
-    Args.ClaimAllArgs(options::OPT_MJ);
-  }
-
-  if (IsCuda || IsHIP) {
-    // We have to pass the triple of the host if compiling for a CUDA/HIP device
-    // and vice-versa.
-    std::string NormalizedTriple;
-    if (JA.isDeviceOffloading(Action::OFK_Cuda) ||
-        JA.isDeviceOffloading(Action::OFK_HIP))
-      NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>()
-                             ->getTriple()
-                             .normalize();
-    else
-      NormalizedTriple =
-          (IsCuda ? C.getSingleOffloadToolChain<Action::OFK_Cuda>()
-                  : C.getSingleOffloadToolChain<Action::OFK_HIP>())
-              ->getTriple()
-              .normalize();
-
-    CmdArgs.push_back("-aux-triple");
-    CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
-  }
-
-  if (IsOpenMPDevice) {
-    // We have to pass the triple of the host if compiling for an OpenMP device.
-    std::string NormalizedTriple =
-        C.getSingleOffloadToolChain<Action::OFK_Host>()
-            ->getTriple()
-            .normalize();
-    CmdArgs.push_back("-aux-triple");
-    CmdArgs.push_back(Args.MakeArgString(NormalizedTriple));
-  }
-
-  if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm ||
-                               Triple.getArch() == llvm::Triple::thumb)) {
-    unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6;
-    unsigned Version;
-    Triple.getArchName().substr(Offset).getAsInteger(10, Version);
-    if (Version < 7)
-      D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName()
-                                                << TripleStr;
-  }
-
-  // Push all default warning arguments that are specific to
-  // the given target.  These come before user provided warning options
-  // are provided.
-  TC.addClangWarningOptions(CmdArgs);
-
-  // Select the appropriate action.
-  RewriteKind rewriteKind = RK_None;
-
-  if (isa<AnalyzeJobAction>(JA)) {
-    assert(JA.getType() == types::TY_Plist && "Invalid output type.");
-    CmdArgs.push_back("-analyze");
-  } else if (isa<MigrateJobAction>(JA)) {
-    CmdArgs.push_back("-migrate");
-  } else if (isa<PreprocessJobAction>(JA)) {
-    if (Output.getType() == types::TY_Dependencies)
-      CmdArgs.push_back("-Eonly");
-    else {
-      CmdArgs.push_back("-E");
-      if (Args.hasArg(options::OPT_rewrite_objc) &&
-          !Args.hasArg(options::OPT_g_Group))
-        CmdArgs.push_back("-P");
-    }
-  } else if (isa<AssembleJobAction>(JA)) {
-    CmdArgs.push_back("-emit-obj");
-
-    CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D);
-
-    // Also ignore explicit -force_cpusubtype_ALL option.
-    (void)Args.hasArg(options::OPT_force__cpusubtype__ALL);
-  } else if (isa<PrecompileJobAction>(JA)) {
-    if (JA.getType() == types::TY_Nothing)
-      CmdArgs.push_back("-fsyntax-only");
-    else if (JA.getType() == types::TY_ModuleFile)
-      CmdArgs.push_back(IsHeaderModulePrecompile
-                            ? "-emit-header-module"
-                            : "-emit-module-interface");
-    else
-      CmdArgs.push_back("-emit-pch");
-  } else if (isa<VerifyPCHJobAction>(JA)) {
-    CmdArgs.push_back("-verify-pch");
-  } else {
-    assert((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) &&
-           "Invalid action for clang tool.");
-    if (JA.getType() == types::TY_Nothing) {
-      CmdArgs.push_back("-fsyntax-only");
-    } else if (JA.getType() == types::TY_LLVM_IR ||
-               JA.getType() == types::TY_LTO_IR) {
-      CmdArgs.push_back("-emit-llvm");
-    } else if (JA.getType() == types::TY_LLVM_BC ||
-               JA.getType() == types::TY_LTO_BC) {
-      CmdArgs.push_back("-emit-llvm-bc");
-    } else if (JA.getType() == types::TY_PP_Asm) {
-      CmdArgs.push_back("-S");
-    } else if (JA.getType() == types::TY_AST) {
-      CmdArgs.push_back("-emit-pch");
-    } else if (JA.getType() == types::TY_ModuleFile) {
-      CmdArgs.push_back("-module-file-info");
-    } else if (JA.getType() == types::TY_RewrittenObjC) {
-      CmdArgs.push_back("-rewrite-objc");
-      rewriteKind = RK_NonFragile;
-    } else if (JA.getType() == types::TY_RewrittenLegacyObjC) {
-      CmdArgs.push_back("-rewrite-objc");
-      rewriteKind = RK_Fragile;
-    } else {
-      assert(JA.getType() == types::TY_PP_Asm && "Unexpected output type!");
-    }
-
-    // Preserve use-list order by default when emitting bitcode, so that
-    // loading the bitcode up in 'opt' or 'llc' and running passes gives the
-    // same result as running passes here.  For LTO, we don't need to preserve
-    // the use-list order, since serialization to bitcode is part of the flow.
-    if (JA.getType() == types::TY_LLVM_BC)
-      CmdArgs.push_back("-emit-llvm-uselists");
-
-    // Device-side jobs do not support LTO.
-    bool isDeviceOffloadAction = !(JA.isDeviceOffloading(Action::OFK_None) ||
-                                   JA.isDeviceOffloading(Action::OFK_Host));
-
-    if (D.isUsingLTO() && !isDeviceOffloadAction) {
-      Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ);
-
-      // The Darwin and PS4 linkers currently use the legacy LTO API, which
-      // does not support LTO unit features (CFI, whole program vtable opt)
-      // under ThinLTO.
-      if (!(RawTriple.isOSDarwin() || RawTriple.isPS4()) ||
-          D.getLTOMode() == LTOK_Full)
-        CmdArgs.push_back("-flto-unit");
-    }
-  }
-
-  if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) {
-    if (!types::isLLVMIR(Input.getType()))
-      D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args)
-                                                       << "-x ir";
-    Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ);
-  }
-
-  if (Args.getLastArg(options::OPT_save_temps_EQ))
-    Args.AddLastArg(CmdArgs, options::OPT_save_temps_EQ);
-
-  // Embed-bitcode option.
-  // Only white-listed flags below are allowed to be embedded.
-  if (C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO() &&
-      (isa<BackendJobAction>(JA) || isa<AssembleJobAction>(JA))) {
-    // Add flags implied by -fembed-bitcode.
-    Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ);
-    // Disable all llvm IR level optimizations.
-    CmdArgs.push_back("-disable-llvm-passes");
-
-    // reject options that shouldn't be supported in bitcode
-    // also reject kernel/kext
-    static const constexpr unsigned kBitcodeOptionBlacklist[] = {
-        options::OPT_mkernel,
-        options::OPT_fapple_kext,
-        options::OPT_ffunction_sections,
-        options::OPT_fno_function_sections,
-        options::OPT_fdata_sections,
-        options::OPT_fno_data_sections,
-        options::OPT_funique_section_names,
-        options::OPT_fno_unique_section_names,
-        options::OPT_mrestrict_it,
-        options::OPT_mno_restrict_it,
-        options::OPT_mstackrealign,
-        options::OPT_mno_stackrealign,
-        options::OPT_mstack_alignment,
-        options::OPT_mcmodel_EQ,
-        options::OPT_mlong_calls,
-        options::OPT_mno_long_calls,
-        options::OPT_ggnu_pubnames,
-        options::OPT_gdwarf_aranges,
-        options::OPT_fdebug_types_section,
-        options::OPT_fno_debug_types_section,
-        options::OPT_fdwarf_directory_asm,
-        options::OPT_fno_dwarf_directory_asm,
-        options::OPT_mrelax_all,
-        options::OPT_mno_relax_all,
-        options::OPT_ftrap_function_EQ,
-        options::OPT_ffixed_r9,
-        options::OPT_mfix_cortex_a53_835769,
-        options::OPT_mno_fix_cortex_a53_835769,
-        options::OPT_ffixed_x18,
-        options::OPT_mglobal_merge,
-        options::OPT_mno_global_merge,
-        options::OPT_mred_zone,
-        options::OPT_mno_red_zone,
-        options::OPT_Wa_COMMA,
-        options::OPT_Xassembler,
-        options::OPT_mllvm,
-    };
-    for (const auto &A : Args)
-      if (std::find(std::begin(kBitcodeOptionBlacklist),
-                    std::end(kBitcodeOptionBlacklist),
-                    A->getOption().getID()) !=
-          std::end(kBitcodeOptionBlacklist))
-        D.Diag(diag::err_drv_unsupported_embed_bitcode) << A->getSpelling();
-
-    // Render the CodeGen options that need to be passed.
-    if (!Args.hasFlag(options::OPT_foptimize_sibling_calls,
-                      options::OPT_fno_optimize_sibling_calls))
-      CmdArgs.push_back("-mdisable-tail-calls");
-
-    RenderFloatingPointOptions(TC, D, isOptimizationLevelFast(Args), Args,
-                               CmdArgs);
-
-    // Render ABI arguments
-    switch (TC.getArch()) {
-    default: break;
-    case llvm::Triple::arm:
-    case llvm::Triple::armeb:
-    case llvm::Triple::thumbeb:
-      RenderARMABI(Triple, Args, CmdArgs);
-      break;
-    case llvm::Triple::aarch64:
-    case llvm::Triple::aarch64_be:
-      RenderAArch64ABI(Triple, Args, CmdArgs);
-      break;
-    }
-
-    // Optimization level for CodeGen.
-    if (const Arg *A = Args.getLastArg(options::OPT_O_Group)) {
-      if (A->getOption().matches(options::OPT_O4)) {
-        CmdArgs.push_back("-O3");
-        D.Diag(diag::warn_O4_is_O3);
-      } else {
-        A->render(Args, CmdArgs);
-      }
-    }
-
-    // Input/Output file.
-    if (Output.getType() == types::TY_Dependencies) {
-      // Handled with other dependency code.
-    } else if (Output.isFilename()) {
-      CmdArgs.push_back("-o");
-      CmdArgs.push_back(Output.getFilename());
-    } else {
-      assert(Output.isNothing() && "Input output.");
-    }
-
-    for (const auto &II : Inputs) {
-      addDashXForInput(Args, II, CmdArgs);
-      if (II.isFilename())
-        CmdArgs.push_back(II.getFilename());
-      else
-        II.getInputArg().renderAsInput(Args, CmdArgs);
-    }
-
-    C.addCommand(llvm::make_unique<Command>(JA, *this, D.getClangProgramPath(),
-                                            CmdArgs, Inputs));
-    return;
-  }
-
-  if (C.getDriver().embedBitcodeMarkerOnly() && !C.getDriver().isUsingLTO())
-    CmdArgs.push_back("-fembed-bitcode=marker");
-
-  // We normally speed up the clang process a bit by skipping destructors at
-  // exit, but when we're generating diagnostics we can rely on some of the
-  // cleanup.
-  if (!C.isForDiagnostics())
-    CmdArgs.push_back("-disable-free");
-
-#ifdef NDEBUG
-  const bool IsAssertBuild = false;
-#else
-  const bool IsAssertBuild = true;
-#endif
-
-  // Disable the verification pass in -asserts builds.
-  if (!IsAssertBuild)
-    CmdArgs.push_back("-disable-llvm-verifier");
-
-  // Discard value names in assert builds unless otherwise specified.
-  if (Args.hasFlag(options::OPT_fdiscard_value_names,
-                   options::OPT_fno_discard_value_names, !IsAssertBuild))
-    CmdArgs.push_back("-discard-value-names");
-
-  // Set the main file name, so that debug info works even with
-  // -save-temps.
-  CmdArgs.push_back("-main-file-name");
-  CmdArgs.push_back(getBaseInputName(Args, Input));
-
-  // Some flags which affect the language (via preprocessor
-  // defines).
-  if (Args.hasArg(options::OPT_static))
-    CmdArgs.push_back("-static-define");
-
-  if (Args.hasArg(options::OPT_municode))
-    CmdArgs.push_back("-DUNICODE");
-
-  if (isa<AnalyzeJobAction>(JA))
-    RenderAnalyzerOptions(Args, CmdArgs, Triple, Input);
-
-  // Enable compatilibily mode to avoid analyzer-config related errors.
-  // Since we can't access frontend flags through hasArg, let's manually iterate
-  // through them.
-  bool FoundAnalyzerConfig = false;
-  for (auto Arg : Args.filtered(options::OPT_Xclang))
-    if (StringRef(Arg->getValue()) == "-analyzer-config") {
-      FoundAnalyzerConfig = true;
-      break;
-    }
-  if (!FoundAnalyzerConfig)
-    for (auto Arg : Args.filtered(options::OPT_Xanalyzer))
-      if (StringRef(Arg->getValue()) == "-analyzer-config") {
-        FoundAnalyzerConfig = true;
-        break;
-      }
-  if (FoundAnalyzerConfig)
-    CmdArgs.push_back("-analyzer-config-compatibility-mode=true");
-
-  CheckCodeGenerationOptions(D, Args);
-
-  unsigned FunctionAlignment = ParseFunctionAlignment(TC, Args);
-  assert(FunctionAlignment <= 31 && "function alignment will be truncated!");
-  if (FunctionAlignment) {
-    CmdArgs.push_back("-function-alignment");
-    CmdArgs.push_back(Args.MakeArgString(std::to_string(FunctionAlignment)));
-  }
-
-  llvm::Reloc::Model RelocationModel;
-  unsigned PICLevel;
-  bool IsPIE;
-  std::tie(RelocationModel, PICLevel, IsPIE) = ParsePICArgs(TC, Args);
-
-  const char *RMName = RelocationModelName(RelocationModel);
-
-  if ((RelocationModel == llvm::Reloc::ROPI ||
-       RelocationModel == llvm::Reloc::ROPI_RWPI) &&
-      types::isCXX(Input.getType()) &&
-      !Args.hasArg(options::OPT_fallow_unsupported))
-    D.Diag(diag::err_drv_ropi_incompatible_with_cxx);
-
-  if (RMName) {
-    CmdArgs.push_back("-mrelocation-model");
-    CmdArgs.push_back(RMName);
-  }
-  if (PICLevel > 0) {
-    CmdArgs.push_back("-pic-level");
-    CmdArgs.push_back(PICLevel == 1 ? "1" : "2");
-    if (IsPIE)
-      CmdArgs.push_back("-pic-is-pie");
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_meabi)) {
-    CmdArgs.push_back("-meabi");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  CmdArgs.push_back("-mthread-model");
-  if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) {
-    if (!TC.isThreadModelSupported(A->getValue()))
-      D.Diag(diag::err_drv_invalid_thread_model_for_target)
-          << A->getValue() << A->getAsString(Args);
-    CmdArgs.push_back(A->getValue());
-  }
-  else
-    CmdArgs.push_back(Args.MakeArgString(TC.getThreadModel()));
-
-  Args.AddLastArg(CmdArgs, options::OPT_fveclib);
-
-  if (Args.hasFlag(options::OPT_fmerge_all_constants,
-                   options::OPT_fno_merge_all_constants, false))
-    CmdArgs.push_back("-fmerge-all-constants");
-
-  if (Args.hasFlag(options::OPT_fno_delete_null_pointer_checks,
-                   options::OPT_fdelete_null_pointer_checks, false))
-    CmdArgs.push_back("-fno-delete-null-pointer-checks");
-
-  // LLVM Code Generator Options.
-
-  if (Args.hasArg(options::OPT_frewrite_map_file) ||
-      Args.hasArg(options::OPT_frewrite_map_file_EQ)) {
-    for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file,
-                                      options::OPT_frewrite_map_file_EQ)) {
-      StringRef Map = A->getValue();
-      if (!llvm::sys::fs::exists(Map)) {
-        D.Diag(diag::err_drv_no_such_file) << Map;
-      } else {
-        CmdArgs.push_back("-frewrite-map-file");
-        CmdArgs.push_back(A->getValue());
-        A->claim();
-      }
-    }
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) {
-    StringRef v = A->getValue();
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v));
-    A->claim();
-  }
-
-  if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables,
-                    true))
-    CmdArgs.push_back("-fno-jump-tables");
-
-  if (Args.hasFlag(options::OPT_fprofile_sample_accurate,
-                   options::OPT_fno_profile_sample_accurate, false))
-    CmdArgs.push_back("-fprofile-sample-accurate");
-
-  if (!Args.hasFlag(options::OPT_fpreserve_as_comments,
-                    options::OPT_fno_preserve_as_comments, true))
-    CmdArgs.push_back("-fno-preserve-as-comments");
-
-  if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) {
-    CmdArgs.push_back("-mregparm");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_maix_struct_return,
-                               options::OPT_msvr4_struct_return)) {
-    if (TC.getArch() != llvm::Triple::ppc) {
-      D.Diag(diag::err_drv_unsupported_opt_for_target)
-          << A->getSpelling() << RawTriple.str();
-    } else if (A->getOption().matches(options::OPT_maix_struct_return)) {
-      CmdArgs.push_back("-maix-struct-return");
-    } else {
-      assert(A->getOption().matches(options::OPT_msvr4_struct_return));
-      CmdArgs.push_back("-msvr4-struct-return");
-    }
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return,
-                               options::OPT_freg_struct_return)) {
-    if (TC.getArch() != llvm::Triple::x86) {
-      D.Diag(diag::err_drv_unsupported_opt_for_target)
-          << A->getSpelling() << RawTriple.str();
-    } else if (A->getOption().matches(options::OPT_fpcc_struct_return)) {
-      CmdArgs.push_back("-fpcc-struct-return");
-    } else {
-      assert(A->getOption().matches(options::OPT_freg_struct_return));
-      CmdArgs.push_back("-freg-struct-return");
-    }
-  }
-
-  if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false))
-    CmdArgs.push_back("-fdefault-calling-conv=stdcall");
-
-  if (shouldUseFramePointer(Args, RawTriple))
-    CmdArgs.push_back("-mdisable-fp-elim");
-  if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss,
-                    options::OPT_fno_zero_initialized_in_bss))
-    CmdArgs.push_back("-mno-zero-initialized-in-bss");
-
-  bool OFastEnabled = isOptimizationLevelFast(Args);
-  // If -Ofast is the optimization level, then -fstrict-aliasing should be
-  // enabled.  This alias option is being used to simplify the hasFlag logic.
-  OptSpecifier StrictAliasingAliasOption =
-      OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing;
-  // We turn strict aliasing off by default if we're in CL mode, since MSVC
-  // doesn't do any TBAA.
-  bool StrictAliasingDefault = !D.IsCLMode();
-  // We also turn off strict aliasing on OpenBSD.
-  if (getToolChain().getTriple().isOSOpenBSD())
-    StrictAliasingDefault = false;
-  if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption,
-                    options::OPT_fno_strict_aliasing, StrictAliasingDefault))
-    CmdArgs.push_back("-relaxed-aliasing");
-  if (!Args.hasFlag(options::OPT_fstruct_path_tbaa,
-                    options::OPT_fno_struct_path_tbaa))
-    CmdArgs.push_back("-no-struct-path-tbaa");
-  if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums,
-                   false))
-    CmdArgs.push_back("-fstrict-enums");
-  if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return,
-                    true))
-    CmdArgs.push_back("-fno-strict-return");
-  if (Args.hasFlag(options::OPT_fallow_editor_placeholders,
-                   options::OPT_fno_allow_editor_placeholders, false))
-    CmdArgs.push_back("-fallow-editor-placeholders");
-  if (Args.hasFlag(options::OPT_fstrict_vtable_pointers,
-                   options::OPT_fno_strict_vtable_pointers,
-                   false))
-    CmdArgs.push_back("-fstrict-vtable-pointers");
-  if (Args.hasFlag(options::OPT_fforce_emit_vtables,
-                   options::OPT_fno_force_emit_vtables,
-                   false))
-    CmdArgs.push_back("-fforce-emit-vtables");
-  if (!Args.hasFlag(options::OPT_foptimize_sibling_calls,
-                    options::OPT_fno_optimize_sibling_calls))
-    CmdArgs.push_back("-mdisable-tail-calls");
-  if (Args.hasFlag(options::OPT_fno_escaping_block_tail_calls,
-                   options::OPT_fescaping_block_tail_calls, false))
-    CmdArgs.push_back("-fno-escaping-block-tail-calls");
-
-  Args.AddLastArg(CmdArgs, options::OPT_ffine_grained_bitfield_accesses,
-                  options::OPT_fno_fine_grained_bitfield_accesses);
-
-  // Handle segmented stacks.
-  if (Args.hasArg(options::OPT_fsplit_stack))
-    CmdArgs.push_back("-split-stacks");
-
-  RenderFloatingPointOptions(TC, D, OFastEnabled, Args, CmdArgs);
-
-  // Decide whether to use verbose asm. Verbose assembly is the default on
-  // toolchains which have the integrated assembler on by default.
-  bool IsIntegratedAssemblerDefault = TC.IsIntegratedAssemblerDefault();
-  if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm,
-                   IsIntegratedAssemblerDefault) ||
-      Args.hasArg(options::OPT_dA))
-    CmdArgs.push_back("-masm-verbose");
-
-  if (!TC.useIntegratedAs())
-    CmdArgs.push_back("-no-integrated-as");
-
-  if (Args.hasArg(options::OPT_fdebug_pass_structure)) {
-    CmdArgs.push_back("-mdebug-pass");
-    CmdArgs.push_back("Structure");
-  }
-  if (Args.hasArg(options::OPT_fdebug_pass_arguments)) {
-    CmdArgs.push_back("-mdebug-pass");
-    CmdArgs.push_back("Arguments");
-  }
-
-  // Enable -mconstructor-aliases except on darwin, where we have to work around
-  // a linker bug (see <rdar://problem/7651567>), and CUDA device code, where
-  // aliases aren't supported.
-  if (!RawTriple.isOSDarwin() && !RawTriple.isNVPTX())
-    CmdArgs.push_back("-mconstructor-aliases");
-
-  // Darwin's kernel doesn't support guard variables; just die if we
-  // try to use them.
-  if (KernelOrKext && RawTriple.isOSDarwin())
-    CmdArgs.push_back("-fforbid-guard-variables");
-
-  if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields,
-                   false)) {
-    CmdArgs.push_back("-mms-bitfields");
-  }
-
-  if (Args.hasFlag(options::OPT_mpie_copy_relocations,
-                   options::OPT_mno_pie_copy_relocations,
-                   false)) {
-    CmdArgs.push_back("-mpie-copy-relocations");
-  }
-
-  if (Args.hasFlag(options::OPT_fno_plt, options::OPT_fplt, false)) {
-    CmdArgs.push_back("-fno-plt");
-  }
-
-  // -fhosted is default.
-  // TODO: Audit uses of KernelOrKext and see where it'd be more appropriate to
-  // use Freestanding.
-  bool Freestanding =
-      Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) ||
-      KernelOrKext;
-  if (Freestanding)
-    CmdArgs.push_back("-ffreestanding");
-
-  // This is a coarse approximation of what llvm-gcc actually does, both
-  // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more
-  // complicated ways.
-  bool AsynchronousUnwindTables =
-      Args.hasFlag(options::OPT_fasynchronous_unwind_tables,
-                   options::OPT_fno_asynchronous_unwind_tables,
-                   (TC.IsUnwindTablesDefault(Args) ||
-                    TC.getSanitizerArgs().needsUnwindTables()) &&
-                       !Freestanding);
-  if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables,
-                   AsynchronousUnwindTables))
-    CmdArgs.push_back("-munwind-tables");
-
-  TC.addClangTargetOptions(Args, CmdArgs, JA.getOffloadingDeviceKind());
-
-  // FIXME: Handle -mtune=.
-  (void)Args.hasArg(options::OPT_mtune_EQ);
-
-  if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) {
-    CmdArgs.push_back("-mcode-model");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  // Add the target cpu
-  std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false);
-  if (!CPU.empty()) {
-    CmdArgs.push_back("-target-cpu");
-    CmdArgs.push_back(Args.MakeArgString(CPU));
-  }
-
-  RenderTargetOptions(Triple, Args, KernelOrKext, CmdArgs);
-
-  // These two are potentially updated by AddClangCLArgs.
-  codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo;
-  bool EmitCodeView = false;
-
-  // Add clang-cl arguments.
-  types::ID InputType = Input.getType();
-  if (D.IsCLMode())
-    AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView);
-
-  DwarfFissionKind DwarfFission;
-  RenderDebugOptions(TC, D, RawTriple, Args, EmitCodeView, IsWindowsMSVC,
-                     CmdArgs, DebugInfoKind, DwarfFission);
-
-  // Add the split debug info name to the command lines here so we
-  // can propagate it to the backend.
-  bool SplitDWARF = (DwarfFission != DwarfFissionKind::None) &&
-                    (RawTriple.isOSLinux() || RawTriple.isOSFuchsia()) &&
-                    (isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA) ||
-                     isa<BackendJobAction>(JA));
-  const char *SplitDWARFOut;
-  if (SplitDWARF) {
-    CmdArgs.push_back("-split-dwarf-file");
-    SplitDWARFOut = SplitDebugName(Args, Output);
-    CmdArgs.push_back(SplitDWARFOut);
-  }
-
-  // Pass the linker version in use.
-  if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) {
-    CmdArgs.push_back("-target-linker-version");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (!shouldUseLeafFramePointer(Args, RawTriple))
-    CmdArgs.push_back("-momit-leaf-frame-pointer");
-
-  // Explicitly error on some things we know we don't support and can't just
-  // ignore.
-  if (!Args.hasArg(options::OPT_fallow_unsupported)) {
-    Arg *Unsupported;
-    if (types::isCXX(InputType) && RawTriple.isOSDarwin() &&
-        TC.getArch() == llvm::Triple::x86) {
-      if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) ||
-          (Unsupported = Args.getLastArg(options::OPT_mkernel)))
-        D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386)
-            << Unsupported->getOption().getName();
-    }
-    // The faltivec option has been superseded by the maltivec option.
-    if ((Unsupported = Args.getLastArg(options::OPT_faltivec)))
-      D.Diag(diag::err_drv_clang_unsupported_opt_faltivec)
-          << Unsupported->getOption().getName()
-          << "please use -maltivec and include altivec.h explicitly";
-    if ((Unsupported = Args.getLastArg(options::OPT_fno_altivec)))
-      D.Diag(diag::err_drv_clang_unsupported_opt_faltivec)
-          << Unsupported->getOption().getName() << "please use -mno-altivec";
-  }
-
-  Args.AddAllArgs(CmdArgs, options::OPT_v);
-  Args.AddLastArg(CmdArgs, options::OPT_H);
-  if (D.CCPrintHeaders && !D.CCGenDiagnostics) {
-    CmdArgs.push_back("-header-include-file");
-    CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename
-                                               : "-");
-  }
-  Args.AddLastArg(CmdArgs, options::OPT_P);
-  Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout);
-
-  if (D.CCLogDiagnostics && !D.CCGenDiagnostics) {
-    CmdArgs.push_back("-diagnostic-log-file");
-    CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename
-                                                 : "-");
-  }
-
-  bool UseSeparateSections = isUseSeparateSections(Triple);
-
-  if (Args.hasFlag(options::OPT_ffunction_sections,
-                   options::OPT_fno_function_sections, UseSeparateSections)) {
-    CmdArgs.push_back("-ffunction-sections");
-  }
-
-  if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections,
-                   UseSeparateSections)) {
-    CmdArgs.push_back("-fdata-sections");
-  }
-
-  if (!Args.hasFlag(options::OPT_funique_section_names,
-                    options::OPT_fno_unique_section_names, true))
-    CmdArgs.push_back("-fno-unique-section-names");
-
-  if (auto *A = Args.getLastArg(
-      options::OPT_finstrument_functions,
-      options::OPT_finstrument_functions_after_inlining,
-      options::OPT_finstrument_function_entry_bare))
-    A->render(Args, CmdArgs);
-
-  // NVPTX doesn't support PGO or coverage. There's no runtime support for
-  // sampling, overhead of call arc collection is way too high and there's no
-  // way to collect the output.
-  if (!Triple.isNVPTX())
-    addPGOAndCoverageFlags(TC, C, D, Output, Args, CmdArgs);
-
-  if (auto *ABICompatArg = Args.getLastArg(options::OPT_fclang_abi_compat_EQ))
-    ABICompatArg->render(Args, CmdArgs);
-
-  // Add runtime flag for PS4 when PGO, coverage, or sanitizers are enabled.
-  if (RawTriple.isPS4CPU() &&
-      !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
-    PS4cpu::addProfileRTArgs(TC, Args, CmdArgs);
-    PS4cpu::addSanitizerArgs(TC, CmdArgs);
-  }
-
-  // Pass options for controlling the default header search paths.
-  if (Args.hasArg(options::OPT_nostdinc)) {
-    CmdArgs.push_back("-nostdsysteminc");
-    CmdArgs.push_back("-nobuiltininc");
-  } else {
-    if (Args.hasArg(options::OPT_nostdlibinc))
-      CmdArgs.push_back("-nostdsysteminc");
-    Args.AddLastArg(CmdArgs, options::OPT_nostdincxx);
-    Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc);
-  }
-
-  // Pass the path to compiler resource files.
-  CmdArgs.push_back("-resource-dir");
-  CmdArgs.push_back(D.ResourceDir.c_str());
-
-  Args.AddLastArg(CmdArgs, options::OPT_working_directory);
-
-  RenderARCMigrateToolOptions(D, Args, CmdArgs);
-
-  // Add preprocessing options like -I, -D, etc. if we are using the
-  // preprocessor.
-  //
-  // FIXME: Support -fpreprocessed
-  if (types::getPreprocessedType(InputType) != types::TY_INVALID)
-    AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs);
-
-  // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes
-  // that "The compiler can only warn and ignore the option if not recognized".
-  // When building with ccache, it will pass -D options to clang even on
-  // preprocessed inputs and configure concludes that -fPIC is not supported.
-  Args.ClaimAllArgs(options::OPT_D);
-
-  // Manually translate -O4 to -O3; let clang reject others.
-  if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
-    if (A->getOption().matches(options::OPT_O4)) {
-      CmdArgs.push_back("-O3");
-      D.Diag(diag::warn_O4_is_O3);
-    } else {
-      A->render(Args, CmdArgs);
-    }
-  }
-
-  // Warn about ignored options to clang.
-  for (const Arg *A :
-       Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) {
-    D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args);
-    A->claim();
-  }
-
-  for (const Arg *A :
-       Args.filtered(options::OPT_clang_ignored_legacy_options_Group)) {
-    D.Diag(diag::warn_ignored_clang_option) << A->getAsString(Args);
-    A->claim();
-  }
-
-  claimNoWarnArgs(Args);
-
-  Args.AddAllArgs(CmdArgs, options::OPT_R_Group);
-
-  Args.AddAllArgs(CmdArgs, options::OPT_W_Group);
-  if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false))
-    CmdArgs.push_back("-pedantic");
-  Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors);
-  Args.AddLastArg(CmdArgs, options::OPT_w);
-
-  // Fixed point flags
-  if (Args.hasFlag(options::OPT_ffixed_point, options::OPT_fno_fixed_point,
-                   /*Default=*/false))
-    Args.AddLastArg(CmdArgs, options::OPT_ffixed_point);
-
-  // Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi}
-  // (-ansi is equivalent to -std=c89 or -std=c++98).
-  //
-  // If a std is supplied, only add -trigraphs if it follows the
-  // option.
-  bool ImplyVCPPCXXVer = false;
-  if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) {
-    if (Std->getOption().matches(options::OPT_ansi))
-      if (types::isCXX(InputType))
-        CmdArgs.push_back("-std=c++98");
-      else
-        CmdArgs.push_back("-std=c89");
-    else
-      Std->render(Args, CmdArgs);
-
-    // If -f(no-)trigraphs appears after the language standard flag, honor it.
-    if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi,
-                                 options::OPT_ftrigraphs,
-                                 options::OPT_fno_trigraphs))
-      if (A != Std)
-        A->render(Args, CmdArgs);
-  } else {
-    // Honor -std-default.
-    //
-    // FIXME: Clang doesn't correctly handle -std= when the input language
-    // doesn't match. For the time being just ignore this for C++ inputs;
-    // eventually we want to do all the standard defaulting here instead of
-    // splitting it between the driver and clang -cc1.
-    if (!types::isCXX(InputType))
-      Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=",
-                                /*Joined=*/true);
-    else if (IsWindowsMSVC)
-      ImplyVCPPCXXVer = true;
-
-    Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs,
-                    options::OPT_fno_trigraphs);
-  }
-
-  // GCC's behavior for -Wwrite-strings is a bit strange:
-  //  * In C, this "warning flag" changes the types of string literals from
-  //    'char[N]' to 'const char[N]', and thus triggers an unrelated warning
-  //    for the discarded qualifier.
-  //  * In C++, this is just a normal warning flag.
-  //
-  // Implementing this warning correctly in C is hard, so we follow GCC's
-  // behavior for now. FIXME: Directly diagnose uses of a string literal as
-  // a non-const char* in C, rather than using this crude hack.
-  if (!types::isCXX(InputType)) {
-    // FIXME: This should behave just like a warning flag, and thus should also
-    // respect -Weverything, -Wno-everything, -Werror=write-strings, and so on.
-    Arg *WriteStrings =
-        Args.getLastArg(options::OPT_Wwrite_strings,
-                        options::OPT_Wno_write_strings, options::OPT_w);
-    if (WriteStrings &&
-        WriteStrings->getOption().matches(options::OPT_Wwrite_strings))
-      CmdArgs.push_back("-fconst-strings");
-  }
-
-  // GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active
-  // during C++ compilation, which it is by default. GCC keeps this define even
-  // in the presence of '-w', match this behavior bug-for-bug.
-  if (types::isCXX(InputType) &&
-      Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated,
-                   true)) {
-    CmdArgs.push_back("-fdeprecated-macro");
-  }
-
-  // Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'.
-  if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) {
-    if (Asm->getOption().matches(options::OPT_fasm))
-      CmdArgs.push_back("-fgnu-keywords");
-    else
-      CmdArgs.push_back("-fno-gnu-keywords");
-  }
-
-  if (ShouldDisableDwarfDirectory(Args, TC))
-    CmdArgs.push_back("-fno-dwarf-directory-asm");
-
-  if (ShouldDisableAutolink(Args, TC))
-    CmdArgs.push_back("-fno-autolink");
-
-  // Add in -fdebug-compilation-dir if necessary.
-  addDebugCompDirArg(Args, CmdArgs);
-
-  addDebugPrefixMapArg(D, Args, CmdArgs);
-
-  if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_,
-                               options::OPT_ftemplate_depth_EQ)) {
-    CmdArgs.push_back("-ftemplate-depth");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) {
-    CmdArgs.push_back("-foperator-arrow-depth");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) {
-    CmdArgs.push_back("-fconstexpr-depth");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) {
-    CmdArgs.push_back("-fconstexpr-steps");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) {
-    CmdArgs.push_back("-fbracket-depth");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ,
-                               options::OPT_Wlarge_by_value_copy_def)) {
-    if (A->getNumValues()) {
-      StringRef bytes = A->getValue();
-      CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes));
-    } else
-      CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value
-  }
-
-  if (Args.hasArg(options::OPT_relocatable_pch))
-    CmdArgs.push_back("-relocatable-pch");
-
-  if (const Arg *A = Args.getLastArg(options::OPT_fcf_runtime_abi_EQ)) {
-    static const char *kCFABIs[] = {
-      "standalone", "objc", "swift", "swift-5.0", "swift-4.2", "swift-4.1",
-    };
-
-    if (find(kCFABIs, StringRef(A->getValue())) == std::end(kCFABIs))
-      D.Diag(diag::err_drv_invalid_cf_runtime_abi) << A->getValue();
-    else
-      A->render(Args, CmdArgs);
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) {
-    CmdArgs.push_back("-fconstant-string-class");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) {
-    CmdArgs.push_back("-ftabstop");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Args.hasFlag(options::OPT_fstack_size_section,
-                   options::OPT_fno_stack_size_section, RawTriple.isPS4()))
-    CmdArgs.push_back("-fstack-size-section");
-
-  CmdArgs.push_back("-ferror-limit");
-  if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ))
-    CmdArgs.push_back(A->getValue());
-  else
-    CmdArgs.push_back("19");
-
-  if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) {
-    CmdArgs.push_back("-fmacro-backtrace-limit");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) {
-    CmdArgs.push_back("-ftemplate-backtrace-limit");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) {
-    CmdArgs.push_back("-fconstexpr-backtrace-limit");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) {
-    CmdArgs.push_back("-fspell-checking-limit");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  // Pass -fmessage-length=.
-  CmdArgs.push_back("-fmessage-length");
-  if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) {
-    CmdArgs.push_back(A->getValue());
-  } else {
-    // If -fmessage-length=N was not specified, determine whether this is a
-    // terminal and, if so, implicitly define -fmessage-length appropriately.
-    unsigned N = llvm::sys::Process::StandardErrColumns();
-    CmdArgs.push_back(Args.MakeArgString(Twine(N)));
-  }
-
-  // -fvisibility= and -fvisibility-ms-compat are of a piece.
-  if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ,
-                                     options::OPT_fvisibility_ms_compat)) {
-    if (A->getOption().matches(options::OPT_fvisibility_EQ)) {
-      CmdArgs.push_back("-fvisibility");
-      CmdArgs.push_back(A->getValue());
-    } else {
-      assert(A->getOption().matches(options::OPT_fvisibility_ms_compat));
-      CmdArgs.push_back("-fvisibility");
-      CmdArgs.push_back("hidden");
-      CmdArgs.push_back("-ftype-visibility");
-      CmdArgs.push_back("default");
-    }
-  }
-
-  Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden);
-  Args.AddLastArg(CmdArgs, options::OPT_fvisibility_global_new_delete_hidden);
-
-  Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ);
-
-  // Forward -f (flag) options which we can pass directly.
-  Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls);
-  Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions);
-  Args.AddLastArg(CmdArgs, options::OPT_fdigraphs, options::OPT_fno_digraphs);
-  Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names);
-  Args.AddLastArg(CmdArgs, options::OPT_femulated_tls,
-                  options::OPT_fno_emulated_tls);
-  Args.AddLastArg(CmdArgs, options::OPT_fkeep_static_consts);
-
-  // AltiVec-like language extensions aren't relevant for assembling.
-  if (!isa<PreprocessJobAction>(JA) || Output.getType() != types::TY_PP_Asm)
-    Args.AddLastArg(CmdArgs, options::OPT_fzvector);
-
-  Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree);
-  Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type);
-
-  // Forward flags for OpenMP. We don't do this if the current action is an
-  // device offloading action other than OpenMP.
-  if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,
-                   options::OPT_fno_openmp, false) &&
-      (JA.isDeviceOffloading(Action::OFK_None) ||
-       JA.isDeviceOffloading(Action::OFK_OpenMP))) {
-    switch (D.getOpenMPRuntime(Args)) {
-    case Driver::OMPRT_OMP:
-    case Driver::OMPRT_IOMP5:
-      // Clang can generate useful OpenMP code for these two runtime libraries.
-      CmdArgs.push_back("-fopenmp");
-
-      // If no option regarding the use of TLS in OpenMP codegeneration is
-      // given, decide a default based on the target. Otherwise rely on the
-      // options and pass the right information to the frontend.
-      if (!Args.hasFlag(options::OPT_fopenmp_use_tls,
-                        options::OPT_fnoopenmp_use_tls, /*Default=*/true))
-        CmdArgs.push_back("-fnoopenmp-use-tls");
-      Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd,
-                      options::OPT_fno_openmp_simd);
-      Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ);
-      Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_cuda_number_of_sm_EQ);
-      Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_cuda_blocks_per_sm_EQ);
-      if (Args.hasFlag(options::OPT_fopenmp_optimistic_collapse,
-                       options::OPT_fno_openmp_optimistic_collapse,
-                       /*Default=*/false))
-        CmdArgs.push_back("-fopenmp-optimistic-collapse");
-
-      // When in OpenMP offloading mode with NVPTX target, forward
-      // cuda-mode flag
-      if (Args.hasFlag(options::OPT_fopenmp_cuda_mode,
-                       options::OPT_fno_openmp_cuda_mode, /*Default=*/false))
-        CmdArgs.push_back("-fopenmp-cuda-mode");
-
-      // When in OpenMP offloading mode with NVPTX target, check if full runtime
-      // is required.
-      if (Args.hasFlag(options::OPT_fopenmp_cuda_force_full_runtime,
-                       options::OPT_fno_openmp_cuda_force_full_runtime,
-                       /*Default=*/false))
-        CmdArgs.push_back("-fopenmp-cuda-force-full-runtime");
-      break;
-    default:
-      // By default, if Clang doesn't know how to generate useful OpenMP code
-      // for a specific runtime library, we just don't pass the '-fopenmp' flag
-      // down to the actual compilation.
-      // FIXME: It would be better to have a mode which *only* omits IR
-      // generation based on the OpenMP support so that we get consistent
-      // semantic analysis, etc.
-      break;
-    }
-  } else {
-    Args.AddLastArg(CmdArgs, options::OPT_fopenmp_simd,
-                    options::OPT_fno_openmp_simd);
-    Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ);
-  }
-
-  const SanitizerArgs &Sanitize = TC.getSanitizerArgs();
-  Sanitize.addArgs(TC, Args, CmdArgs, InputType);
-
-  const XRayArgs &XRay = TC.getXRayArgs();
-  XRay.addArgs(TC, Args, CmdArgs, InputType);
-
-  if (TC.SupportsProfiling())
-    Args.AddLastArg(CmdArgs, options::OPT_pg);
-
-  if (TC.SupportsProfiling())
-    Args.AddLastArg(CmdArgs, options::OPT_mfentry);
-
-  // -flax-vector-conversions is default.
-  if (!Args.hasFlag(options::OPT_flax_vector_conversions,
-                    options::OPT_fno_lax_vector_conversions))
-    CmdArgs.push_back("-fno-lax-vector-conversions");
-
-  if (Args.getLastArg(options::OPT_fapple_kext) ||
-      (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType)))
-    CmdArgs.push_back("-fapple-kext");
-
-  Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch);
-  Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info);
-  Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits);
-  Args.AddLastArg(CmdArgs, options::OPT_ftime_report);
-  Args.AddLastArg(CmdArgs, options::OPT_ftrapv);
-
-  if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) {
-    CmdArgs.push_back("-ftrapv-handler");
-    CmdArgs.push_back(A->getValue());
-  }
-
-  Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ);
-
-  // -fno-strict-overflow implies -fwrapv if it isn't disabled, but
-  // -fstrict-overflow won't turn off an explicitly enabled -fwrapv.
-  if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) {
-    if (A->getOption().matches(options::OPT_fwrapv))
-      CmdArgs.push_back("-fwrapv");
-  } else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow,
-                                      options::OPT_fno_strict_overflow)) {
-    if (A->getOption().matches(options::OPT_fno_strict_overflow))
-      CmdArgs.push_back("-fwrapv");
-  } else if (getToolChain().getTriple().isOSOpenBSD())
-    CmdArgs.push_back("-fwrapv");
-
-  if (Arg *A = Args.getLastArg(options::OPT_freroll_loops,
-                               options::OPT_fno_reroll_loops))
-    if (A->getOption().matches(options::OPT_freroll_loops))
-      CmdArgs.push_back("-freroll-loops");
-
-  Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings);
-  Args.AddLastArg(CmdArgs, options::OPT_funroll_loops,
-                  options::OPT_fno_unroll_loops);
-
-  Args.AddLastArg(CmdArgs, options::OPT_pthread);
-
-  if (Args.hasFlag(options::OPT_mspeculative_load_hardening, options::OPT_mno_speculative_load_hardening,
-                   false))
-    CmdArgs.push_back(Args.MakeArgString("-mspeculative-load-hardening"));
-
-  RenderTrivialAutoVarInitOptions(D, TC, Args, CmdArgs);
-
-  // -ret-protector
-  unsigned RetProtector = 1;
-  if (Arg *A = Args.getLastArg(options::OPT_fno_ret_protector,
-        options::OPT_fret_protector)) {
-    if (A->getOption().matches(options::OPT_fno_ret_protector))
-      RetProtector = 0;
-    else if (A->getOption().matches(options::OPT_fret_protector))
-      RetProtector = 1;
-  }
-  if (RetProtector &&
-      ((getToolChain().getArch() == llvm::Triple::x86_64) ||
-       (getToolChain().getArch() == llvm::Triple::mips64) ||
-       (getToolChain().getArch() == llvm::Triple::mips64el) ||
-       (getToolChain().getArch() == llvm::Triple::aarch64)) &&
-      !Args.hasArg(options::OPT_fno_stack_protector) &&
-      !Args.hasArg(options::OPT_pg)) {
-    CmdArgs.push_back(Args.MakeArgString("-D_RET_PROTECTOR"));
-    CmdArgs.push_back(Args.MakeArgString("-ret-protector"));
-    // Consume the stack protector arguments to prevent warning
-    Args.getLastArg(options::OPT_fstack_protector_all,
-        options::OPT_fstack_protector_strong,
-        options::OPT_fstack_protector,
-        options::OPT__param); // ssp-buffer-size
-  } else {
-    // If we're not using retguard, then do the usual stack protector
-    RenderSSPOptions(getToolChain(), Args, CmdArgs, KernelOrKext);
-  }
-
-  // -fixup-gadgets
-  if (Arg *A = Args.getLastArg(options::OPT_fno_fixup_gadgets,
-                               options::OPT_ffixup_gadgets)) {
-    CmdArgs.push_back(Args.MakeArgString(Twine("-mllvm")));
-    if (A->getOption().matches(options::OPT_fno_fixup_gadgets))
-      CmdArgs.push_back(Args.MakeArgString(Twine("-x86-fixup-gadgets=false")));
-    else if (A->getOption().matches(options::OPT_ffixup_gadgets))
-      CmdArgs.push_back(Args.MakeArgString(Twine("-x86-fixup-gadgets=true")));
-  }
-
-  // Translate -mstackrealign
-  if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign,
-                   false))
-    CmdArgs.push_back(Args.MakeArgString("-mstackrealign"));
-
-  if (Args.hasArg(options::OPT_mstack_alignment)) {
-    StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment);
-    CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment));
-  }
-
-  if (Args.hasArg(options::OPT_mstack_probe_size)) {
-    StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size);
-
-    if (!Size.empty())
-      CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size));
-    else
-      CmdArgs.push_back("-mstack-probe-size=0");
-  }
-
-  if (!Args.hasFlag(options::OPT_mstack_arg_probe,
-                    options::OPT_mno_stack_arg_probe, true))
-    CmdArgs.push_back(Args.MakeArgString("-mno-stack-arg-probe"));
-
-  if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it,
-                               options::OPT_mno_restrict_it)) {
-    if (A->getOption().matches(options::OPT_mrestrict_it)) {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-arm-restrict-it");
-    } else {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-arm-no-restrict-it");
-    }
-  } else if (Triple.isOSWindows() &&
-             (Triple.getArch() == llvm::Triple::arm ||
-              Triple.getArch() == llvm::Triple::thumb)) {
-    // Windows on ARM expects restricted IT blocks
-    CmdArgs.push_back("-mllvm");
-    CmdArgs.push_back("-arm-restrict-it");
-  }
-
-  // Forward -cl options to -cc1
-  RenderOpenCLOptions(Args, CmdArgs);
-
-  if (Arg *A = Args.getLastArg(options::OPT_fcf_protection_EQ)) {
-    CmdArgs.push_back(
-        Args.MakeArgString(Twine("-fcf-protection=") + A->getValue()));
-  }
-
-  // Forward -f options with positive and negative forms; we translate
-  // these by hand.
-  if (Arg *A = getLastProfileSampleUseArg(Args)) {
-    StringRef fname = A->getValue();
-    if (!llvm::sys::fs::exists(fname))
-      D.Diag(diag::err_drv_no_such_file) << fname;
-    else
-      A->render(Args, CmdArgs);
-  }
-  Args.AddLastArg(CmdArgs, options::OPT_fprofile_remapping_file_EQ);
-
-  RenderBuiltinOptions(TC, RawTriple, Args, CmdArgs);
-
-  if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
-                    options::OPT_fno_assume_sane_operator_new))
-    CmdArgs.push_back("-fno-assume-sane-operator-new");
-
-  // -fblocks=0 is default.
-  if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks,
-                   TC.IsBlocksDefault()) ||
-      (Args.hasArg(options::OPT_fgnu_runtime) &&
-       Args.hasArg(options::OPT_fobjc_nonfragile_abi) &&
-       !Args.hasArg(options::OPT_fno_blocks))) {
-    CmdArgs.push_back("-fblocks");
-
-    if (!Args.hasArg(options::OPT_fgnu_runtime) && !TC.hasBlocksRuntime())
-      CmdArgs.push_back("-fblocks-runtime-optional");
-  }
-
-  // -fencode-extended-block-signature=1 is default.
-  if (TC.IsEncodeExtendedBlockSignatureDefault())
-    CmdArgs.push_back("-fencode-extended-block-signature");
-
-  if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts,
-                   false) &&
-      types::isCXX(InputType)) {
-    CmdArgs.push_back("-fcoroutines-ts");
-  }
-
-  Args.AddLastArg(CmdArgs, options::OPT_fdouble_square_bracket_attributes,
-                  options::OPT_fno_double_square_bracket_attributes);
-
-  bool HaveModules = false;
-  RenderModulesOptions(C, D, Args, Input, Output, CmdArgs, HaveModules);
-
-  // -faccess-control is default.
-  if (Args.hasFlag(options::OPT_fno_access_control,
-                   options::OPT_faccess_control, false))
-    CmdArgs.push_back("-fno-access-control");
-
-  // -felide-constructors is the default.
-  if (Args.hasFlag(options::OPT_fno_elide_constructors,
-                   options::OPT_felide_constructors, false))
-    CmdArgs.push_back("-fno-elide-constructors");
-
-  ToolChain::RTTIMode RTTIMode = TC.getRTTIMode();
-
-  if (KernelOrKext || (types::isCXX(InputType) &&
-                       (RTTIMode == ToolChain::RM_Disabled)))
-    CmdArgs.push_back("-fno-rtti");
-
-  // -fshort-enums=0 is default for all architectures except Hexagon.
-  if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums,
-                   TC.getArch() == llvm::Triple::hexagon))
-    CmdArgs.push_back("-fshort-enums");
-
-  RenderCharacterOptions(Args, AuxTriple ? *AuxTriple : RawTriple, CmdArgs);
-
-  // -fuse-cxa-atexit is default.
-  if (!Args.hasFlag(
-          options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit,
-          !RawTriple.isOSWindows() &&
-              RawTriple.getOS() != llvm::Triple::Solaris &&
-              TC.getArch() != llvm::Triple::xcore &&
-              ((RawTriple.getVendor() != llvm::Triple::MipsTechnologies) ||
-               RawTriple.hasEnvironment())) ||
-      KernelOrKext)
-    CmdArgs.push_back("-fno-use-cxa-atexit");
-
-  if (Args.hasFlag(options::OPT_fregister_global_dtors_with_atexit,
-                   options::OPT_fno_register_global_dtors_with_atexit,
-                   RawTriple.isOSDarwin() && !KernelOrKext))
-    CmdArgs.push_back("-fregister-global-dtors-with-atexit");
-
-  // -fms-extensions=0 is default.
-  if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
-                   IsWindowsMSVC))
-    CmdArgs.push_back("-fms-extensions");
-
-  // -fno-use-line-directives is default.
-  if (Args.hasFlag(options::OPT_fuse_line_directives,
-                   options::OPT_fno_use_line_directives, false))
-    CmdArgs.push_back("-fuse-line-directives");
-
-  // -fms-compatibility=0 is default.
-  if (Args.hasFlag(options::OPT_fms_compatibility,
-                   options::OPT_fno_ms_compatibility,
-                   (IsWindowsMSVC &&
-                    Args.hasFlag(options::OPT_fms_extensions,
-                                 options::OPT_fno_ms_extensions, true))))
-    CmdArgs.push_back("-fms-compatibility");
-
-  VersionTuple MSVT = TC.computeMSVCVersion(&D, Args);
-  if (!MSVT.empty())
-    CmdArgs.push_back(
-        Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString()));
-
-  bool IsMSVC2015Compatible = MSVT.getMajor() >= 19;
-  if (ImplyVCPPCXXVer) {
-    StringRef LanguageStandard;
-    if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) {
-      LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue())
-                             .Case("c++14", "-std=c++14")
-                             .Case("c++17", "-std=c++17")
-                             .Case("c++latest", "-std=c++2a")
-                             .Default("");
-      if (LanguageStandard.empty())
-        D.Diag(clang::diag::warn_drv_unused_argument)
-            << StdArg->getAsString(Args);
-    }
-
-    if (LanguageStandard.empty()) {
-      if (IsMSVC2015Compatible)
-        LanguageStandard = "-std=c++14";
-      else
-        LanguageStandard = "-std=c++11";
-    }
-
-    CmdArgs.push_back(LanguageStandard.data());
-  }
-
-  // -fno-borland-extensions is default.
-  if (Args.hasFlag(options::OPT_fborland_extensions,
-                   options::OPT_fno_borland_extensions, false))
-    CmdArgs.push_back("-fborland-extensions");
-
-  // -fno-declspec is default, except for PS4.
-  if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec,
-                   RawTriple.isPS4()))
-    CmdArgs.push_back("-fdeclspec");
-  else if (Args.hasArg(options::OPT_fno_declspec))
-    CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec.
-
-  // -fthreadsafe-static is default, except for MSVC compatibility versions less
-  // than 19.
-  if (!Args.hasFlag(options::OPT_fthreadsafe_statics,
-                    options::OPT_fno_threadsafe_statics,
-                    !IsWindowsMSVC || IsMSVC2015Compatible))
-    CmdArgs.push_back("-fno-threadsafe-statics");
-
-  // -fno-delayed-template-parsing is default, except when targeting MSVC.
-  // Many old Windows SDK versions require this to parse.
-  // FIXME: MSVC introduced /Zc:twoPhase- to disable this behavior in their
-  // compiler. We should be able to disable this by default at some point.
-  if (Args.hasFlag(options::OPT_fdelayed_template_parsing,
-                   options::OPT_fno_delayed_template_parsing, IsWindowsMSVC))
-    CmdArgs.push_back("-fdelayed-template-parsing");
-
-  // -fgnu-keywords default varies depending on language; only pass if
-  // specified.
-  if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords,
-                               options::OPT_fno_gnu_keywords))
-    A->render(Args, CmdArgs);
-
-  if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline,
-                   false))
-    CmdArgs.push_back("-fgnu89-inline");
-
-  if (Args.hasArg(options::OPT_fno_inline))
-    CmdArgs.push_back("-fno-inline");
-
-  if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions,
-                                       options::OPT_finline_hint_functions,
-                                       options::OPT_fno_inline_functions))
-    InlineArg->render(Args, CmdArgs);
-
-  Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager,
-                  options::OPT_fno_experimental_new_pass_manager);
-
-  ObjCRuntime Runtime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind);
-  RenderObjCOptions(TC, D, RawTriple, Args, Runtime, rewriteKind != RK_None,
-                    Input, CmdArgs);
-
-  if (Args.hasFlag(options::OPT_fapplication_extension,
-                   options::OPT_fno_application_extension, false))
-    CmdArgs.push_back("-fapplication-extension");
-
-  // Handle GCC-style exception args.
-  if (!C.getDriver().IsCLMode())
-    addExceptionArgs(Args, InputType, TC, KernelOrKext, Runtime, CmdArgs);
-
-  // Handle exception personalities
-  Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions,
-                           options::OPT_fseh_exceptions,
-                           options::OPT_fdwarf_exceptions);
-  if (A) {
-    const Option &Opt = A->getOption();
-    if (Opt.matches(options::OPT_fsjlj_exceptions))
-      CmdArgs.push_back("-fsjlj-exceptions");
-    if (Opt.matches(options::OPT_fseh_exceptions))
-      CmdArgs.push_back("-fseh-exceptions");
-    if (Opt.matches(options::OPT_fdwarf_exceptions))
-      CmdArgs.push_back("-fdwarf-exceptions");
-  } else {
-    switch (TC.GetExceptionModel(Args)) {
-    default:
-      break;
-    case llvm::ExceptionHandling::DwarfCFI:
-      CmdArgs.push_back("-fdwarf-exceptions");
-      break;
-    case llvm::ExceptionHandling::SjLj:
-      CmdArgs.push_back("-fsjlj-exceptions");
-      break;
-    case llvm::ExceptionHandling::WinEH:
-      CmdArgs.push_back("-fseh-exceptions");
-      break;
-    }
-  }
-
-  // C++ "sane" operator new.
-  if (!Args.hasFlag(options::OPT_fassume_sane_operator_new,
-                    options::OPT_fno_assume_sane_operator_new))
-    CmdArgs.push_back("-fno-assume-sane-operator-new");
-
-  // -frelaxed-template-template-args is off by default, as it is a severe
-  // breaking change until a corresponding change to template partial ordering
-  // is provided.
-  if (Args.hasFlag(options::OPT_frelaxed_template_template_args,
-                   options::OPT_fno_relaxed_template_template_args, false))
-    CmdArgs.push_back("-frelaxed-template-template-args");
-
-  // -fsized-deallocation is off by default, as it is an ABI-breaking change for
-  // most platforms.
-  if (Args.hasFlag(options::OPT_fsized_deallocation,
-                   options::OPT_fno_sized_deallocation, false))
-    CmdArgs.push_back("-fsized-deallocation");
-
-  // -faligned-allocation is on by default in C++17 onwards and otherwise off
-  // by default.
-  if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation,
-                               options::OPT_fno_aligned_allocation,
-                               options::OPT_faligned_new_EQ)) {
-    if (A->getOption().matches(options::OPT_fno_aligned_allocation))
-      CmdArgs.push_back("-fno-aligned-allocation");
-    else
-      CmdArgs.push_back("-faligned-allocation");
-  }
-
-  // The default new alignment can be specified using a dedicated option or via
-  // a GCC-compatible option that also turns on aligned allocation.
-  if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ,
-                               options::OPT_faligned_new_EQ))
-    CmdArgs.push_back(
-        Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue()));
-
-  // -fconstant-cfstrings is default, and may be subject to argument translation
-  // on Darwin.
-  if (!Args.hasFlag(options::OPT_fconstant_cfstrings,
-                    options::OPT_fno_constant_cfstrings) ||
-      !Args.hasFlag(options::OPT_mconstant_cfstrings,
-                    options::OPT_mno_constant_cfstrings))
-    CmdArgs.push_back("-fno-constant-cfstrings");
-
-  // -fno-pascal-strings is default, only pass non-default.
-  if (Args.hasFlag(options::OPT_fpascal_strings,
-                   options::OPT_fno_pascal_strings, false))
-    CmdArgs.push_back("-fpascal-strings");
-
-  // Honor -fpack-struct= and -fpack-struct, if given. Note that
-  // -fno-pack-struct doesn't apply to -fpack-struct=.
-  if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) {
-    std::string PackStructStr = "-fpack-struct=";
-    PackStructStr += A->getValue();
-    CmdArgs.push_back(Args.MakeArgString(PackStructStr));
-  } else if (Args.hasFlag(options::OPT_fpack_struct,
-                          options::OPT_fno_pack_struct, false)) {
-    CmdArgs.push_back("-fpack-struct=1");
-  }
-
-  // Handle -fmax-type-align=N and -fno-type-align
-  bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align);
-  if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) {
-    if (!SkipMaxTypeAlign) {
-      std::string MaxTypeAlignStr = "-fmax-type-align=";
-      MaxTypeAlignStr += A->getValue();
-      CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr));
-    }
-  } else if (RawTriple.isOSDarwin()) {
-    if (!SkipMaxTypeAlign) {
-      std::string MaxTypeAlignStr = "-fmax-type-align=16";
-      CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr));
-    }
-  }
-
-  if (!Args.hasFlag(options::OPT_Qy, options::OPT_Qn, true))
-    CmdArgs.push_back("-Qn");
-
-  // -fcommon is the default unless compiling kernel code or the target says so
-  bool NoCommonDefault = KernelOrKext || isNoCommonDefault(RawTriple);
-  if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common,
-                    !NoCommonDefault))
-    CmdArgs.push_back("-fno-common");
-
-  // -fsigned-bitfields is default, and clang doesn't yet support
-  // -funsigned-bitfields.
-  if (!Args.hasFlag(options::OPT_fsigned_bitfields,
-                    options::OPT_funsigned_bitfields))
-    D.Diag(diag::warn_drv_clang_unsupported)
-        << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args);
-
-  // -fsigned-bitfields is default, and clang doesn't support -fno-for-scope.
-  if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope))
-    D.Diag(diag::err_drv_clang_unsupported)
-        << Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args);
-
-  // -finput_charset=UTF-8 is default. Reject others
-  if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) {
-    StringRef value = inputCharset->getValue();
-    if (!value.equals_lower("utf-8"))
-      D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args)
-                                          << value;
-  }
-
-  // -fexec_charset=UTF-8 is default. Reject others
-  if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) {
-    StringRef value = execCharset->getValue();
-    if (!value.equals_lower("utf-8"))
-      D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args)
-                                          << value;
-  }
-
-  RenderDiagnosticsOptions(D, Args, CmdArgs);
-
-  // -fno-asm-blocks is default.
-  if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks,
-                   false))
-    CmdArgs.push_back("-fasm-blocks");
-
-  // -fgnu-inline-asm is default.
-  if (!Args.hasFlag(options::OPT_fgnu_inline_asm,
-                    options::OPT_fno_gnu_inline_asm, true))
-    CmdArgs.push_back("-fno-gnu-inline-asm");
-
-  // Enable vectorization per default according to the optimization level
-  // selected. For optimization levels that want vectorization we use the alias
-  // option to simplify the hasFlag logic.
-  bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false);
-  OptSpecifier VectorizeAliasOption =
-      EnableVec ? options::OPT_O_Group : options::OPT_fvectorize;
-  if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption,
-                   options::OPT_fno_vectorize, EnableVec))
-    CmdArgs.push_back("-vectorize-loops");
-
-  // -fslp-vectorize is enabled based on the optimization level selected.
-  bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true);
-  OptSpecifier SLPVectAliasOption =
-      EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize;
-  if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption,
-                   options::OPT_fno_slp_vectorize, EnableSLPVec))
-    CmdArgs.push_back("-vectorize-slp");
-
-  ParseMPreferVectorWidth(D, Args, CmdArgs);
-
-  if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ))
-    A->render(Args, CmdArgs);
-
-  if (Arg *A = Args.getLastArg(
-          options::OPT_fsanitize_undefined_strip_path_components_EQ))
-    A->render(Args, CmdArgs);
-
-  // -fdollars-in-identifiers default varies depending on platform and
-  // language; only pass if specified.
-  if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers,
-                               options::OPT_fno_dollars_in_identifiers)) {
-    if (A->getOption().matches(options::OPT_fdollars_in_identifiers))
-      CmdArgs.push_back("-fdollars-in-identifiers");
-    else
-      CmdArgs.push_back("-fno-dollars-in-identifiers");
-  }
-
-  // -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for
-  // practical purposes.
-  if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time,
-                               options::OPT_fno_unit_at_a_time)) {
-    if (A->getOption().matches(options::OPT_fno_unit_at_a_time))
-      D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args);
-  }
-
-  if (Args.hasFlag(options::OPT_fapple_pragma_pack,
-                   options::OPT_fno_apple_pragma_pack, false))
-    CmdArgs.push_back("-fapple-pragma-pack");
-
-  if (Args.hasFlag(options::OPT_fsave_optimization_record,
-                   options::OPT_foptimization_record_file_EQ,
-                   options::OPT_fno_save_optimization_record, false)) {
-    CmdArgs.push_back("-opt-record-file");
-
-    const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ);
-    if (A) {
-      CmdArgs.push_back(A->getValue());
-    } else {
-      SmallString<128> F;
-
-      if (Args.hasArg(options::OPT_c) || Args.hasArg(options::OPT_S)) {
-        if (Arg *FinalOutput = Args.getLastArg(options::OPT_o))
-          F = FinalOutput->getValue();
-      }
-
-      if (F.empty()) {
-        // Use the input filename.
-        F = llvm::sys::path::stem(Input.getBaseInput());
-
-        // If we're compiling for an offload architecture (i.e. a CUDA device),
-        // we need to make the file name for the device compilation different
-        // from the host compilation.
-        if (!JA.isDeviceOffloading(Action::OFK_None) &&
-            !JA.isDeviceOffloading(Action::OFK_Host)) {
-          llvm::sys::path::replace_extension(F, "");
-          F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(),
-                                                   Triple.normalize());
-          F += "-";
-          F += JA.getOffloadingArch();
-        }
-      }
-
-      llvm::sys::path::replace_extension(F, "opt.yaml");
-      CmdArgs.push_back(Args.MakeArgString(F));
-    }
-  }
-
-  bool RewriteImports = Args.hasFlag(options::OPT_frewrite_imports,
-                                     options::OPT_fno_rewrite_imports, false);
-  if (RewriteImports)
-    CmdArgs.push_back("-frewrite-imports");
-
-  // Disable some builtins on OpenBSD because they are just not
-  // right...
-  if (getToolChain().getTriple().isOSOpenBSD()) {
-    CmdArgs.push_back("-fno-builtin-malloc");
-    CmdArgs.push_back("-fno-builtin-calloc");
-    CmdArgs.push_back("-fno-builtin-realloc");
-    CmdArgs.push_back("-fno-builtin-valloc");
-    CmdArgs.push_back("-fno-builtin-free");
-    CmdArgs.push_back("-fno-builtin-strdup");
-    CmdArgs.push_back("-fno-builtin-strndup");
-  }
-
-  // Enable rewrite includes if the user's asked for it or if we're generating
-  // diagnostics.
-  // TODO: Once -module-dependency-dir works with -frewrite-includes it'd be
-  // nice to enable this when doing a crashdump for modules as well.
-  if (Args.hasFlag(options::OPT_frewrite_includes,
-                   options::OPT_fno_rewrite_includes, false) ||
-      (C.isForDiagnostics() && !HaveModules))
-    CmdArgs.push_back("-frewrite-includes");
-
-  // Only allow -traditional or -traditional-cpp outside in preprocessing modes.
-  if (Arg *A = Args.getLastArg(options::OPT_traditional,
-                               options::OPT_traditional_cpp)) {
-    if (isa<PreprocessJobAction>(JA))
-      CmdArgs.push_back("-traditional-cpp");
-    else
-      D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args);
-  }
-
-  Args.AddLastArg(CmdArgs, options::OPT_dM);
-  Args.AddLastArg(CmdArgs, options::OPT_dD);
-
-  // Handle serialized diagnostics.
-  if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) {
-    CmdArgs.push_back("-serialize-diagnostic-file");
-    CmdArgs.push_back(Args.MakeArgString(A->getValue()));
-  }
-
-  if (Args.hasArg(options::OPT_fretain_comments_from_system_headers))
-    CmdArgs.push_back("-fretain-comments-from-system-headers");
-
-  // Forward -fcomment-block-commands to -cc1.
-  Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands);
-  // Forward -fparse-all-comments to -cc1.
-  Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments);
-
-  // Turn -fplugin=name.so into -load name.so
-  for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) {
-    CmdArgs.push_back("-load");
-    CmdArgs.push_back(A->getValue());
-    A->claim();
-  }
-
-  // Setup statistics file output.
-  SmallString<128> StatsFile = getStatsFileName(Args, Output, Input, D);
-  if (!StatsFile.empty())
-    CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + StatsFile));
-
-  // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option
-  // parser.
-  // -finclude-default-header flag is for preprocessor,
-  // do not pass it to other cc1 commands when save-temps is enabled
-  if (C.getDriver().isSaveTempsEnabled() &&
-      !isa<PreprocessJobAction>(JA)) {
-    for (auto Arg : Args.filtered(options::OPT_Xclang)) {
-      Arg->claim();
-      if (StringRef(Arg->getValue()) != "-finclude-default-header")
-        CmdArgs.push_back(Arg->getValue());
-    }
-  }
-  else {
-    Args.AddAllArgValues(CmdArgs, options::OPT_Xclang);
-  }
-  for (const Arg *A : Args.filtered(options::OPT_mllvm)) {
-    A->claim();
-
-    // We translate this by hand to the -cc1 argument, since nightly test uses
-    // it and developers have been trained to spell it with -mllvm. Both
-    // spellings are now deprecated and should be removed.
-    if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") {
-      CmdArgs.push_back("-disable-llvm-optzns");
-    } else {
-      A->render(Args, CmdArgs);
-    }
-  }
-
-  // With -save-temps, we want to save the unoptimized bitcode output from the
-  // CompileJobAction, use -disable-llvm-passes to get pristine IR generated
-  // by the frontend.
-  // When -fembed-bitcode is enabled, optimized bitcode is emitted because it
-  // has slightly different breakdown between stages.
-  // FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of
-  // pristine IR generated by the frontend. Ideally, a new compile action should
-  // be added so both IR can be captured.
-  if (C.getDriver().isSaveTempsEnabled() &&
-      !(C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO()) &&
-      isa<CompileJobAction>(JA))
-    CmdArgs.push_back("-disable-llvm-passes");
-
-  if (Output.getType() == types::TY_Dependencies) {
-    // Handled with other dependency code.
-  } else if (Output.isFilename()) {
-    CmdArgs.push_back("-o");
-    CmdArgs.push_back(Output.getFilename());
-  } else {
-    assert(Output.isNothing() && "Invalid output.");
-  }
-
-  addDashXForInput(Args, Input, CmdArgs);
-
-  ArrayRef<InputInfo> FrontendInputs = Input;
-  if (IsHeaderModulePrecompile)
-    FrontendInputs = ModuleHeaderInputs;
-  else if (Input.isNothing())
-    FrontendInputs = {};
-
-  for (const InputInfo &Input : FrontendInputs) {
-    if (Input.isFilename())
-      CmdArgs.push_back(Input.getFilename());
-    else
-      Input.getInputArg().renderAsInput(Args, CmdArgs);
-  }
-
-  Args.AddAllArgs(CmdArgs, options::OPT_undef);
-
-  const char *Exec = D.getClangProgramPath();
-
-  // Optionally embed the -cc1 level arguments into the debug info or a
-  // section, for build analysis.
-  // Also record command line arguments into the debug info if
-  // -grecord-gcc-switches options is set on.
-  // By default, -gno-record-gcc-switches is set on and no recording.
-  auto GRecordSwitches =
-      Args.hasFlag(options::OPT_grecord_command_line,
-                   options::OPT_gno_record_command_line, false);
-  auto FRecordSwitches =
-      Args.hasFlag(options::OPT_frecord_command_line,
-                   options::OPT_fno_record_command_line, false);
-  if (FRecordSwitches && !Triple.isOSBinFormatELF())
-    D.Diag(diag::err_drv_unsupported_opt_for_target)
-        << Args.getLastArg(options::OPT_frecord_command_line)->getAsString(Args)
-        << TripleStr;
-  if (TC.UseDwarfDebugFlags() || GRecordSwitches || FRecordSwitches) {
-    ArgStringList OriginalArgs;
-    for (const auto &Arg : Args)
-      Arg->render(Args, OriginalArgs);
-
-    SmallString<256> Flags;
-    Flags += Exec;
-    for (const char *OriginalArg : OriginalArgs) {
-      SmallString<128> EscapedArg;
-      EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
-      Flags += " ";
-      Flags += EscapedArg;
-    }
-    auto FlagsArgString = Args.MakeArgString(Flags);
-    if (TC.UseDwarfDebugFlags() || GRecordSwitches) {
-      CmdArgs.push_back("-dwarf-debug-flags");
-      CmdArgs.push_back(FlagsArgString);
-    }
-    if (FRecordSwitches) {
-      CmdArgs.push_back("-record-command-line");
-      CmdArgs.push_back(FlagsArgString);
-    }
-  }
-
-  // Host-side cuda compilation receives all device-side outputs in a single
-  // fatbin as Inputs[1]. Include the binary with -fcuda-include-gpubinary.
-  if ((IsCuda || IsHIP) && CudaDeviceInput) {
-      CmdArgs.push_back("-fcuda-include-gpubinary");
-      CmdArgs.push_back(CudaDeviceInput->getFilename());
-      if (Args.hasFlag(options::OPT_fgpu_rdc, options::OPT_fno_gpu_rdc, false))
-        CmdArgs.push_back("-fgpu-rdc");
-  }
-
-  if (IsCuda) {
-    if (Args.hasFlag(options::OPT_fcuda_short_ptr,
-                     options::OPT_fno_cuda_short_ptr, false))
-      CmdArgs.push_back("-fcuda-short-ptr");
-  }
-
-  // OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path
-  // to specify the result of the compile phase on the host, so the meaningful
-  // device declarations can be identified. Also, -fopenmp-is-device is passed
-  // along to tell the frontend that it is generating code for a device, so that
-  // only the relevant declarations are emitted.
-  if (IsOpenMPDevice) {
-    CmdArgs.push_back("-fopenmp-is-device");
-    if (OpenMPDeviceInput) {
-      CmdArgs.push_back("-fopenmp-host-ir-file-path");
-      CmdArgs.push_back(Args.MakeArgString(OpenMPDeviceInput->getFilename()));
-    }
-  }
-
-  // For all the host OpenMP offloading compile jobs we need to pass the targets
-  // information using -fopenmp-targets= option.
-  if (JA.isHostOffloading(Action::OFK_OpenMP)) {
-    SmallString<128> TargetInfo("-fopenmp-targets=");
-
-    Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ);
-    assert(Tgts && Tgts->getNumValues() &&
-           "OpenMP offloading has to have targets specified.");
-    for (unsigned i = 0; i < Tgts->getNumValues(); ++i) {
-      if (i)
-        TargetInfo += ',';
-      // We need to get the string from the triple because it may be not exactly
-      // the same as the one we get directly from the arguments.
-      llvm::Triple T(Tgts->getValue(i));
-      TargetInfo += T.getTriple();
-    }
-    CmdArgs.push_back(Args.MakeArgString(TargetInfo.str()));
-  }
-
-  bool WholeProgramVTables =
-      Args.hasFlag(options::OPT_fwhole_program_vtables,
-                   options::OPT_fno_whole_program_vtables, false);
-  if (WholeProgramVTables) {
-    if (!D.isUsingLTO())
-      D.Diag(diag::err_drv_argument_only_allowed_with)
-          << "-fwhole-program-vtables"
-          << "-flto";
-    CmdArgs.push_back("-fwhole-program-vtables");
-  }
-
-  bool RequiresSplitLTOUnit = WholeProgramVTables || Sanitize.needsLTO();
-  bool SplitLTOUnit =
-      Args.hasFlag(options::OPT_fsplit_lto_unit,
-                   options::OPT_fno_split_lto_unit, RequiresSplitLTOUnit);
-  if (RequiresSplitLTOUnit && !SplitLTOUnit)
-    D.Diag(diag::err_drv_argument_not_allowed_with)
-        << "-fno-split-lto-unit"
-        << (WholeProgramVTables ? "-fwhole-program-vtables" : "-fsanitize=cfi");
-  if (SplitLTOUnit)
-    CmdArgs.push_back("-fsplit-lto-unit");
-
-  if (Arg *A = Args.getLastArg(options::OPT_fexperimental_isel,
-                               options::OPT_fno_experimental_isel)) {
-    CmdArgs.push_back("-mllvm");
-    if (A->getOption().matches(options::OPT_fexperimental_isel)) {
-      CmdArgs.push_back("-global-isel=1");
-
-      // GISel is on by default on AArch64 -O0, so don't bother adding
-      // the fallback remarks for it. Other combinations will add a warning of
-      // some kind.
-      bool IsArchSupported = Triple.getArch() == llvm::Triple::aarch64;
-      bool IsOptLevelSupported = false;
-
-      Arg *A = Args.getLastArg(options::OPT_O_Group);
-      if (Triple.getArch() == llvm::Triple::aarch64) {
-        if (!A || A->getOption().matches(options::OPT_O0))
-          IsOptLevelSupported = true;
-      }
-      if (!IsArchSupported || !IsOptLevelSupported) {
-        CmdArgs.push_back("-mllvm");
-        CmdArgs.push_back("-global-isel-abort=2");
-
-        if (!IsArchSupported)
-          D.Diag(diag::warn_drv_experimental_isel_incomplete) << Triple.getArchName();
-        else
-          D.Diag(diag::warn_drv_experimental_isel_incomplete_opt);
-      }
-    } else {
-      CmdArgs.push_back("-global-isel=0");
-    }
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_fforce_enable_int128,
-                               options::OPT_fno_force_enable_int128)) {
-    if (A->getOption().matches(options::OPT_fforce_enable_int128))
-      CmdArgs.push_back("-fforce-enable-int128");
-  }
-
-  if (Args.hasFlag(options::OPT_fcomplete_member_pointers,
-                   options::OPT_fno_complete_member_pointers, false))
-    CmdArgs.push_back("-fcomplete-member-pointers");
-
-  if (!Args.hasFlag(options::OPT_fcxx_static_destructors,
-                    options::OPT_fno_cxx_static_destructors, true))
-    CmdArgs.push_back("-fno-c++-static-destructors");
-
-  if (Arg *A = Args.getLastArg(options::OPT_moutline,
-                               options::OPT_mno_outline)) {
-    if (A->getOption().matches(options::OPT_moutline)) {
-      // We only support -moutline in AArch64 right now. If we're not compiling
-      // for AArch64, emit a warning and ignore the flag. Otherwise, add the
-      // proper mllvm flags.
-      if (Triple.getArch() != llvm::Triple::aarch64) {
-        D.Diag(diag::warn_drv_moutline_unsupported_opt) << Triple.getArchName();
-      } else {
-          CmdArgs.push_back("-mllvm");
-          CmdArgs.push_back("-enable-machine-outliner");
-      }
-    } else {
-      // Disable all outlining behaviour.
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back("-enable-machine-outliner=never");
-    }
-  }
-
-  if (Args.hasFlag(options::OPT_faddrsig, options::OPT_fno_addrsig,
-                   (TC.getTriple().isOSBinFormatELF() ||
-                    TC.getTriple().isOSBinFormatCOFF()) &&
-                      !TC.getTriple().isPS4() &&
-                      !TC.getTriple().isOSNetBSD() &&
-                      !Distro(D.getVFS()).IsGentoo() &&
-                      !TC.getTriple().isAndroid() &&
-                       TC.useIntegratedAs()))
-    CmdArgs.push_back("-faddrsig");
-
-  // Finally add the compile command to the compilation.
-  if (Args.hasArg(options::OPT__SLASH_fallback) &&
-      Output.getType() == types::TY_Object &&
-      (InputType == types::TY_C || InputType == types::TY_CXX)) {
-    auto CLCommand =
-        getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput);
-    C.addCommand(llvm::make_unique<FallbackCommand>(
-        JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand)));
-  } else if (Args.hasArg(options::OPT__SLASH_fallback) &&
-             isa<PrecompileJobAction>(JA)) {
-    // In /fallback builds, run the main compilation even if the pch generation
-    // fails, so that the main compilation's fallback to cl.exe runs.
-    C.addCommand(llvm::make_unique<ForceSuccessCommand>(JA, *this, Exec,
-                                                        CmdArgs, Inputs));
-  } else {
-    C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
-  }
-
-  // Make the compile command echo its inputs for /showFilenames.
-  if (Output.getType() == types::TY_Object &&
-      Args.hasFlag(options::OPT__SLASH_showFilenames,
-                   options::OPT__SLASH_showFilenames_, false)) {
-    C.getJobs().getJobs().back()->setPrintInputFilenames(true);
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_pg))
-    if (!shouldUseFramePointer(Args, Triple))
-      D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer"
-                                                      << A->getAsString(Args);
-
-  // Claim some arguments which clang supports automatically.
-
-  // -fpch-preprocess is used with gcc to add a special marker in the output to
-  // include the PCH file.
-  Args.ClaimAllArgs(options::OPT_fpch_preprocess);
-
-  // Claim some arguments which clang doesn't support, but we don't
-  // care to warn the user about.
-  Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group);
-  Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group);
-
-  // Disable warnings for clang -E -emit-llvm foo.c
-  Args.ClaimAllArgs(options::OPT_emit_llvm);
-}
-
-Clang::Clang(const ToolChain &TC)
-    // CAUTION! The first constructor argument ("clang") is not arbitrary,
-    // as it is for other tools. Some operations on a Tool actually test
-    // whether that tool is Clang based on the Tool's Name as a string.
-    : Tool("clang", "clang frontend", TC, RF_Full) {}
-
-Clang::~Clang() {}
-
-/// Add options related to the Objective-C runtime/ABI.
-///
-/// Returns true if the runtime is non-fragile.
-ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args,
-                                      ArgStringList &cmdArgs,
-                                      RewriteKind rewriteKind) const {
-  // Look for the controlling runtime option.
-  Arg *runtimeArg =
-      args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime,
-                      options::OPT_fobjc_runtime_EQ);
-
-  // Just forward -fobjc-runtime= to the frontend.  This supercedes
-  // options about fragility.
-  if (runtimeArg &&
-      runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) {
-    ObjCRuntime runtime;
-    StringRef value = runtimeArg->getValue();
-    if (runtime.tryParse(value)) {
-      getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime)
-          << value;
-    }
-    if ((runtime.getKind() == ObjCRuntime::GNUstep) &&
-        (runtime.getVersion() >= VersionTuple(2, 0)))
-      if (!getToolChain().getTriple().isOSBinFormatELF() &&
-          !getToolChain().getTriple().isOSBinFormatCOFF()) {
-        getToolChain().getDriver().Diag(
-            diag::err_drv_gnustep_objc_runtime_incompatible_binary)
-          << runtime.getVersion().getMajor();
-      }
-
-    runtimeArg->render(args, cmdArgs);
-    return runtime;
-  }
-
-  // Otherwise, we'll need the ABI "version".  Version numbers are
-  // slightly confusing for historical reasons:
-  //   1 - Traditional "fragile" ABI
-  //   2 - Non-fragile ABI, version 1
-  //   3 - Non-fragile ABI, version 2
-  unsigned objcABIVersion = 1;
-  // If -fobjc-abi-version= is present, use that to set the version.
-  if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) {
-    StringRef value = abiArg->getValue();
-    if (value == "1")
-      objcABIVersion = 1;
-    else if (value == "2")
-      objcABIVersion = 2;
-    else if (value == "3")
-      objcABIVersion = 3;
-    else
-      getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value;
-  } else {
-    // Otherwise, determine if we are using the non-fragile ABI.
-    bool nonFragileABIIsDefault =
-        (rewriteKind == RK_NonFragile ||
-         (rewriteKind == RK_None &&
-          getToolChain().IsObjCNonFragileABIDefault()));
-    if (args.hasFlag(options::OPT_fobjc_nonfragile_abi,
-                     options::OPT_fno_objc_nonfragile_abi,
-                     nonFragileABIIsDefault)) {
-// Determine the non-fragile ABI version to use.
-#ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO
-      unsigned nonFragileABIVersion = 1;
-#else
-      unsigned nonFragileABIVersion = 2;
-#endif
-
-      if (Arg *abiArg =
-              args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) {
-        StringRef value = abiArg->getValue();
-        if (value == "1")
-          nonFragileABIVersion = 1;
-        else if (value == "2")
-          nonFragileABIVersion = 2;
-        else
-          getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported)
-              << value;
-      }
-
-      objcABIVersion = 1 + nonFragileABIVersion;
-    } else {
-      objcABIVersion = 1;
-    }
-  }
-
-  // We don't actually care about the ABI version other than whether
-  // it's non-fragile.
-  bool isNonFragile = objcABIVersion != 1;
-
-  // If we have no runtime argument, ask the toolchain for its default runtime.
-  // However, the rewriter only really supports the Mac runtime, so assume that.
-  ObjCRuntime runtime;
-  if (!runtimeArg) {
-    switch (rewriteKind) {
-    case RK_None:
-      runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
-      break;
-    case RK_Fragile:
-      runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple());
-      break;
-    case RK_NonFragile:
-      runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
-      break;
-    }
-
-    // -fnext-runtime
-  } else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) {
-    // On Darwin, make this use the default behavior for the toolchain.
-    if (getToolChain().getTriple().isOSDarwin()) {
-      runtime = getToolChain().getDefaultObjCRuntime(isNonFragile);
-
-      // Otherwise, build for a generic macosx port.
-    } else {
-      runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple());
-    }
-
-    // -fgnu-runtime
-  } else {
-    assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime));
-    // Legacy behaviour is to target the gnustep runtime if we are in
-    // non-fragile mode or the GCC runtime in fragile mode.
-    if (isNonFragile)
-      runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(2, 0));
-    else
-      runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple());
-  }
-
-  cmdArgs.push_back(
-      args.MakeArgString("-fobjc-runtime=" + runtime.getAsString()));
-  return runtime;
-}
-
-static bool maybeConsumeDash(const std::string &EH, size_t &I) {
-  bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-');
-  I += HaveDash;
-  return !HaveDash;
-}
-
-namespace {
-struct EHFlags {
-  bool Synch = false;
-  bool Asynch = false;
-  bool NoUnwindC = false;
-};
-} // end anonymous namespace
-
-/// /EH controls whether to run destructor cleanups when exceptions are
-/// thrown.  There are three modifiers:
-/// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions.
-/// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions.
-///      The 'a' modifier is unimplemented and fundamentally hard in LLVM IR.
-/// - c: Assume that extern "C" functions are implicitly nounwind.
-/// The default is /EHs-c-, meaning cleanups are disabled.
-static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) {
-  EHFlags EH;
-
-  std::vector<std::string> EHArgs =
-      Args.getAllArgValues(options::OPT__SLASH_EH);
-  for (auto EHVal : EHArgs) {
-    for (size_t I = 0, E = EHVal.size(); I != E; ++I) {
-      switch (EHVal[I]) {
-      case 'a':
-        EH.Asynch = maybeConsumeDash(EHVal, I);
-        if (EH.Asynch)
-          EH.Synch = false;
-        continue;
-      case 'c':
-        EH.NoUnwindC = maybeConsumeDash(EHVal, I);
-        continue;
-      case 's':
-        EH.Synch = maybeConsumeDash(EHVal, I);
-        if (EH.Synch)
-          EH.Asynch = false;
-        continue;
-      default:
-        break;
-      }
-      D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal;
-      break;
-    }
-  }
-  // The /GX, /GX- flags are only processed if there are not /EH flags.
-  // The default is that /GX is not specified.
-  if (EHArgs.empty() &&
-      Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_,
-                   /*default=*/false)) {
-    EH.Synch = true;
-    EH.NoUnwindC = true;
-  }
-
-  return EH;
-}
-
-void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType,
-                           ArgStringList &CmdArgs,
-                           codegenoptions::DebugInfoKind *DebugInfoKind,
-                           bool *EmitCodeView) const {
-  unsigned RTOptionID = options::OPT__SLASH_MT;
-
-  if (Args.hasArg(options::OPT__SLASH_LDd))
-    // The /LDd option implies /MTd. The dependent lib part can be overridden,
-    // but defining _DEBUG is sticky.
-    RTOptionID = options::OPT__SLASH_MTd;
-
-  if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group))
-    RTOptionID = A->getOption().getID();
-
-  StringRef FlagForCRT;
-  switch (RTOptionID) {
-  case options::OPT__SLASH_MD:
-    if (Args.hasArg(options::OPT__SLASH_LDd))
-      CmdArgs.push_back("-D_DEBUG");
-    CmdArgs.push_back("-D_MT");
-    CmdArgs.push_back("-D_DLL");
-    FlagForCRT = "--dependent-lib=msvcrt";
-    break;
-  case options::OPT__SLASH_MDd:
-    CmdArgs.push_back("-D_DEBUG");
-    CmdArgs.push_back("-D_MT");
-    CmdArgs.push_back("-D_DLL");
-    FlagForCRT = "--dependent-lib=msvcrtd";
-    break;
-  case options::OPT__SLASH_MT:
-    if (Args.hasArg(options::OPT__SLASH_LDd))
-      CmdArgs.push_back("-D_DEBUG");
-    CmdArgs.push_back("-D_MT");
-    CmdArgs.push_back("-flto-visibility-public-std");
-    FlagForCRT = "--dependent-lib=libcmt";
-    break;
-  case options::OPT__SLASH_MTd:
-    CmdArgs.push_back("-D_DEBUG");
-    CmdArgs.push_back("-D_MT");
-    CmdArgs.push_back("-flto-visibility-public-std");
-    FlagForCRT = "--dependent-lib=libcmtd";
-    break;
-  default:
-    llvm_unreachable("Unexpected option ID.");
-  }
-
-  if (Args.hasArg(options::OPT__SLASH_Zl)) {
-    CmdArgs.push_back("-D_VC_NODEFAULTLIB");
-  } else {
-    CmdArgs.push_back(FlagForCRT.data());
-
-    // This provides POSIX compatibility (maps 'open' to '_open'), which most
-    // users want.  The /Za flag to cl.exe turns this off, but it's not
-    // implemented in clang.
-    CmdArgs.push_back("--dependent-lib=oldnames");
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_show_includes))
-    A->render(Args, CmdArgs);
-
-  // This controls whether or not we emit RTTI data for polymorphic types.
-  if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR,
-                   /*default=*/false))
-    CmdArgs.push_back("-fno-rtti-data");
-
-  // This controls whether or not we emit stack-protector instrumentation.
-  // In MSVC, Buffer Security Check (/GS) is on by default.
-  if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_,
-                   /*default=*/true)) {
-    CmdArgs.push_back("-stack-protector");
-    CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong)));
-  }
-
-  // Emit CodeView if -Z7, -Zd, or -gline-tables-only are present.
-  if (Arg *DebugInfoArg =
-          Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd,
-                          options::OPT_gline_tables_only)) {
-    *EmitCodeView = true;
-    if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7))
-      *DebugInfoKind = codegenoptions::LimitedDebugInfo;
-    else
-      *DebugInfoKind = codegenoptions::DebugLineTablesOnly;
-  } else {
-    *EmitCodeView = false;
-  }
-
-  const Driver &D = getToolChain().getDriver();
-  EHFlags EH = parseClangCLEHFlags(D, Args);
-  if (EH.Synch || EH.Asynch) {
-    if (types::isCXX(InputType))
-      CmdArgs.push_back("-fcxx-exceptions");
-    CmdArgs.push_back("-fexceptions");
-  }
-  if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC)
-    CmdArgs.push_back("-fexternc-nounwind");
-
-  // /EP should expand to -E -P.
-  if (Args.hasArg(options::OPT__SLASH_EP)) {
-    CmdArgs.push_back("-E");
-    CmdArgs.push_back("-P");
-  }
-
-  unsigned VolatileOptionID;
-  if (getToolChain().getArch() == llvm::Triple::x86_64 ||
-      getToolChain().getArch() == llvm::Triple::x86)
-    VolatileOptionID = options::OPT__SLASH_volatile_ms;
-  else
-    VolatileOptionID = options::OPT__SLASH_volatile_iso;
-
-  if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group))
-    VolatileOptionID = A->getOption().getID();
-
-  if (VolatileOptionID == options::OPT__SLASH_volatile_ms)
-    CmdArgs.push_back("-fms-volatile");
-
- if (Args.hasFlag(options::OPT__SLASH_Zc_dllexportInlines_,
-                  options::OPT__SLASH_Zc_dllexportInlines,
-                  false)) {
-   if (Args.hasArg(options::OPT__SLASH_fallback)) {
-     D.Diag(clang::diag::err_drv_dllexport_inlines_and_fallback);
-   } else {
-    CmdArgs.push_back("-fno-dllexport-inlines");
-   }
- }
-
-  Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg);
-  Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb);
-  if (MostGeneralArg && BestCaseArg)
-    D.Diag(clang::diag::err_drv_argument_not_allowed_with)
-        << MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args);
-
-  if (MostGeneralArg) {
-    Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms);
-    Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm);
-    Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv);
-
-    Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg;
-    Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg;
-    if (FirstConflict && SecondConflict && FirstConflict != SecondConflict)
-      D.Diag(clang::diag::err_drv_argument_not_allowed_with)
-          << FirstConflict->getAsString(Args)
-          << SecondConflict->getAsString(Args);
-
-    if (SingleArg)
-      CmdArgs.push_back("-fms-memptr-rep=single");
-    else if (MultipleArg)
-      CmdArgs.push_back("-fms-memptr-rep=multiple");
-    else
-      CmdArgs.push_back("-fms-memptr-rep=virtual");
-  }
-
-  // Parse the default calling convention options.
-  if (Arg *CCArg =
-          Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr,
-                          options::OPT__SLASH_Gz, options::OPT__SLASH_Gv,
-                          options::OPT__SLASH_Gregcall)) {
-    unsigned DCCOptId = CCArg->getOption().getID();
-    const char *DCCFlag = nullptr;
-    bool ArchSupported = true;
-    llvm::Triple::ArchType Arch = getToolChain().getArch();
-    switch (DCCOptId) {
-    case options::OPT__SLASH_Gd:
-      DCCFlag = "-fdefault-calling-conv=cdecl";
-      break;
-    case options::OPT__SLASH_Gr:
-      ArchSupported = Arch == llvm::Triple::x86;
-      DCCFlag = "-fdefault-calling-conv=fastcall";
-      break;
-    case options::OPT__SLASH_Gz:
-      ArchSupported = Arch == llvm::Triple::x86;
-      DCCFlag = "-fdefault-calling-conv=stdcall";
-      break;
-    case options::OPT__SLASH_Gv:
-      ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64;
-      DCCFlag = "-fdefault-calling-conv=vectorcall";
-      break;
-    case options::OPT__SLASH_Gregcall:
-      ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64;
-      DCCFlag = "-fdefault-calling-conv=regcall";
-      break;
-    }
-
-    // MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either.
-    if (ArchSupported && DCCFlag)
-      CmdArgs.push_back(DCCFlag);
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ))
-    A->render(Args, CmdArgs);
-
-  if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) {
-    CmdArgs.push_back("-fdiagnostics-format");
-    if (Args.hasArg(options::OPT__SLASH_fallback))
-      CmdArgs.push_back("msvc-fallback");
-    else
-      CmdArgs.push_back("msvc");
-  }
-
-  if (Arg *A = Args.getLastArg(options::OPT__SLASH_guard)) {
-    SmallVector<StringRef, 1> SplitArgs;
-    StringRef(A->getValue()).split(SplitArgs, ",");
-    bool Instrument = false;
-    bool NoChecks = false;
-    for (StringRef Arg : SplitArgs) {
-      if (Arg.equals_lower("cf"))
-        Instrument = true;
-      else if (Arg.equals_lower("cf-"))
-        Instrument = false;
-      else if (Arg.equals_lower("nochecks"))
-        NoChecks = true;
-      else if (Arg.equals_lower("nochecks-"))
-        NoChecks = false;
-      else
-        D.Diag(diag::err_drv_invalid_value) << A->getSpelling() << Arg;
-    }
-    // Currently there's no support emitting CFG instrumentation; the flag only
-    // emits the table of address-taken functions.
-    if (Instrument || NoChecks)
-      CmdArgs.push_back("-cfguard");
-  }
-}
-
-visualstudio::Compiler *Clang::getCLFallback() const {
-  if (!CLFallback)
-    CLFallback.reset(new visualstudio::Compiler(getToolChain()));
-  return CLFallback.get();
-}
-
-
-const char *Clang::getBaseInputName(const ArgList &Args,
-                                    const InputInfo &Input) {
-  return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput()));
-}
-
-const char *Clang::getBaseInputStem(const ArgList &Args,
-                                    const InputInfoList &Inputs) {
-  const char *Str = getBaseInputName(Args, Inputs[0]);
-
-  if (const char *End = strrchr(Str, '.'))
-    return Args.MakeArgString(std::string(Str, End));
-
-  return Str;
-}
-
-const char *Clang::getDependencyFileName(const ArgList &Args,
-                                         const InputInfoList &Inputs) {
-  // FIXME: Think about this more.
-  std::string Res;
-
-  if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) {
-    std::string Str(OutputOpt->getValue());
-    Res = Str.substr(0, Str.rfind('.'));
-  } else {
-    Res = getBaseInputStem(Args, Inputs);
-  }
-  return Args.MakeArgString(Res + ".d");
-}
-
-// Begin ClangAs
-
-void ClangAs::AddMIPSTargetArgs(const ArgList &Args,
-                                ArgStringList &CmdArgs) const {
-  StringRef CPUName;
-  StringRef ABIName;
-  const llvm::Triple &Triple = getToolChain().getTriple();
-  mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName);
-
-  CmdArgs.push_back("-target-abi");
-  CmdArgs.push_back(ABIName.data());
-}
-
-void ClangAs::AddX86TargetArgs(const ArgList &Args,
-                               ArgStringList &CmdArgs) const {
-  if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) {
-    StringRef Value = A->getValue();
-    if (Value == "intel" || Value == "att") {
-      CmdArgs.push_back("-mllvm");
-      CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value));
-    } else {
-      getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument)
-          << A->getOption().getName() << Value;
-    }
-  }
-}
-
-void ClangAs::ConstructJob(Compilation &C, const JobAction &JA,
-                           const InputInfo &Output, const InputInfoList &Inputs,
-                           const ArgList &Args,
-                           const char *LinkingOutput) const {
-  ArgStringList CmdArgs;
-
-  assert(Inputs.size() == 1 && "Unexpected number of inputs.");
-  const InputInfo &Input = Inputs[0];
-
-  const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
-  const std::string &TripleStr = Triple.getTriple();
-  const auto &D = getToolChain().getDriver();
-
-  // Don't warn about "clang -w -c foo.s"
-  Args.ClaimAllArgs(options::OPT_w);
-  // and "clang -emit-llvm -c foo.s"
-  Args.ClaimAllArgs(options::OPT_emit_llvm);
-
-  claimNoWarnArgs(Args);
-
-  // Invoke ourselves in -cc1as mode.
-  //
-  // FIXME: Implement custom jobs for internal actions.
-  CmdArgs.push_back("-cc1as");
-
-  // Add the "effective" target triple.
-  CmdArgs.push_back("-triple");
-  CmdArgs.push_back(Args.MakeArgString(TripleStr));
-
-  // Set the output mode, we currently only expect to be used as a real
-  // assembler.
-  CmdArgs.push_back("-filetype");
-  CmdArgs.push_back("obj");
-
-  // Set the main file name, so that debug info works even with
-  // -save-temps or preprocessed assembly.
-  CmdArgs.push_back("-main-file-name");
-  CmdArgs.push_back(Clang::getBaseInputName(Args, Input));
-
-  // Add the target cpu
-  std::string CPU = getCPUName(Args, Triple, /*FromAs*/ true);
-  if (!CPU.empty()) {
-    CmdArgs.push_back("-target-cpu");
-    CmdArgs.push_back(Args.MakeArgString(CPU));
-  }
-
-  // Add the target features
-  getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true);
-
-  // Ignore explicit -force_cpusubtype_ALL option.
-  (void)Args.hasArg(options::OPT_force__cpusubtype__ALL);
-
-  // Pass along any -I options so we get proper .include search paths.
-  Args.AddAllArgs(CmdArgs, options::OPT_I_Group);
-
-  // Determine the original source input.
-  const Action *SourceAction = &JA;
-  while (SourceAction->getKind() != Action::InputClass) {
-    assert(!SourceAction->getInputs().empty() && "unexpected root action!");
-    SourceAction = SourceAction->getInputs()[0];
-  }
-
-  // Forward -g and handle debug info related flags, assuming we are dealing
-  // with an actual assembly file.
-  bool WantDebug = false;
-  unsigned DwarfVersion = 0;
-  Args.ClaimAllArgs(options::OPT_g_Group);
-  if (Arg *A = Args.getLastArg(options::OPT_g_Group)) {
-    WantDebug = !A->getOption().matches(options::OPT_g0) &&
-                !A->getOption().matches(options::OPT_ggdb0);
-    if (WantDebug)
-      DwarfVersion = DwarfVersionNum(A->getSpelling());
-  }
-  if (DwarfVersion == 0)
-    DwarfVersion = getToolChain().GetDefaultDwarfVersion();
-
-  codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo;
-
-  if (SourceAction->getType() == types::TY_Asm ||
-      SourceAction->getType() == types::TY_PP_Asm) {
-    // You might think that it would be ok to set DebugInfoKind outside of
-    // the guard for source type, however there is a test which asserts
-    // that some assembler invocation receives no -debug-info-kind,
-    // and it's not clear whether that test is just overly restrictive.
-    DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo
-                               : codegenoptions::NoDebugInfo);
-    // Add the -fdebug-compilation-dir flag if needed.
-    addDebugCompDirArg(Args, CmdArgs);
-
-    addDebugPrefixMapArg(getToolChain().getDriver(), Args, CmdArgs);
-
-    // Set the AT_producer to the clang version when using the integrated
-    // assembler on assembly source files.
-    CmdArgs.push_back("-dwarf-debug-producer");
-    CmdArgs.push_back(Args.MakeArgString(getClangFullVersion()));
-
-    // And pass along -I options
-    Args.AddAllArgs(CmdArgs, options::OPT_I);
-  }
-  RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion,
-                          llvm::DebuggerKind::Default);
-  RenderDebugInfoCompressionArgs(Args, CmdArgs, D, getToolChain());
-
-
-  // Handle -fPIC et al -- the relocation-model affects the assembler
-  // for some targets.
-  llvm::Reloc::Model RelocationModel;
-  unsigned PICLevel;
-  bool IsPIE;
-  std::tie(RelocationModel, PICLevel, IsPIE) =
-      ParsePICArgs(getToolChain(), Args);
-
-  const char *RMName = RelocationModelName(RelocationModel);
-  if (RMName) {
-    CmdArgs.push_back("-mrelocation-model");
-    CmdArgs.push_back(RMName);
-  }
-
-  // Optionally embed the -cc1as level arguments into the debug info, for build
-  // analysis.
-  if (getToolChain().UseDwarfDebugFlags()) {
-    ArgStringList OriginalArgs;
-    for (const auto &Arg : Args)
-      Arg->render(Args, OriginalArgs);
-
-    SmallString<256> Flags;
-    const char *Exec = getToolChain().getDriver().getClangProgramPath();
-    Flags += Exec;
-    for (const char *OriginalArg : OriginalArgs) {
-      SmallString<128> EscapedArg;
-      EscapeSpacesAndBackslashes(OriginalArg, EscapedArg);
-      Flags += " ";
-      Flags += EscapedArg;
-    }
-    CmdArgs.push_back("-dwarf-debug-flags");
-    CmdArgs.push_back(Args.MakeArgString(Flags));
-  }
-
-  // FIXME: Add -static support, once we have it.
-
-  // Add target specific flags.
-  switch (getToolChain().getArch()) {
-  default:
-    break;
-
-  case llvm::Triple::mips:
-  case llvm::Triple::mipsel:
-  case llvm::Triple::mips64:
-  case llvm::Triple::mips64el:
-    AddMIPSTargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::x86:
-  case llvm::Triple::x86_64:
-    AddX86TargetArgs(Args, CmdArgs);
-    break;
-
-  case llvm::Triple::arm:
-  case llvm::Triple::armeb:
-  case llvm::Triple::thumb:
-  case llvm::Triple::thumbeb:
-    // This isn't in AddARMTargetArgs because we want to do this for assembly
-    // only, not C/C++.
-    if (Args.hasFlag(options::OPT_mdefault_build_attributes,
-                     options::OPT_mno_default_build_attributes, true)) {
-        CmdArgs.push_back("-mllvm");
-        CmdArgs.push_back("-arm-add-build-attributes");
-    }
-    break;
-  }
-
-  // Consume all the warning flags. Usually this would be handled more
-  // gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as
-  // doesn't handle that so rather than warning about unused flags that are
-  // actually used, we'll lie by omission instead.
-  // FIXME: Stop lying and consume only the appropriate driver flags
-  Args.ClaimAllArgs(options::OPT_W_Group);
-
-  CollectArgsForIntegratedAssembler(C, Args, CmdArgs,
-                                    getToolChain().getDriver());
-
-  Args.AddAllArgs(CmdArgs, options::OPT_mllvm);
-
-  assert(Output.isFilename() && "Unexpected lipo output.");
-  CmdArgs.push_back("-o");
-  CmdArgs.push_back(Output.getFilename());
-
-  const llvm::Triple &T = getToolChain().getTriple();
-  Arg *A;
-  if ((getDebugFissionKind(D, Args, A) == DwarfFissionKind::Split) &&
-      (T.isOSLinux() || T.isOSFuchsia())) {
-    CmdArgs.push_back("-split-dwarf-file");
-    CmdArgs.push_back(SplitDebugName(Args, Output));
-  }
-
-  assert(Input.isFilename() && "Invalid input.");
-  CmdArgs.push_back(Input.getFilename());
-
-  const char *Exec = getToolChain().getDriver().getClangProgramPath();
-  C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
-}
-
-// Begin OffloadBundler
-
-void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA,
-                                  const InputInfo &Output,
-                                  const InputInfoList &Inputs,
-                                  const llvm::opt::ArgList &TCArgs,
-                                  const char *LinkingOutput) const {
-  // The version with only one output is expected to refer to a bundling job.
-  assert(isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!");
-
-  // The bundling command looks like this:
-  // clang-offload-bundler -type=bc
-  //   -targets=host-triple,openmp-triple1,openmp-triple2
-  //   -outputs=input_file
-  //   -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2"
-
-  ArgStringList CmdArgs;
-
-  // Get the type.
-  CmdArgs.push_back(TCArgs.MakeArgString(
-      Twine("-type=") + types::getTypeTempSuffix(Output.getType())));
-
-  assert(JA.getInputs().size() == Inputs.size() &&
-         "Not have inputs for all dependence actions??");
-
-  // Get the targets.
-  SmallString<128> Triples;
-  Triples += "-targets=";
-  for (unsigned I = 0; I < Inputs.size(); ++I) {
-    if (I)
-      Triples += ',';
-
-    // Find ToolChain for this input.
-    Action::OffloadKind CurKind = Action::OFK_Host;
-    const ToolChain *CurTC = &getToolChain();
-    const Action *CurDep = JA.getInputs()[I];
-
-    if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) {
-      CurTC = nullptr;
-      OA->doOnEachDependence([&](Action *A, const ToolChain *TC, const char *) {
-        assert(CurTC == nullptr && "Expected one dependence!");
-        CurKind = A->getOffloadingDeviceKind();
-        CurTC = TC;
-      });
-    }
-    Triples += Action::GetOffloadKindName(CurKind);
-    Triples += '-';
-    Triples += CurTC->getTriple().normalize();
-    if (CurKind == Action::OFK_HIP && CurDep->getOffloadingArch()) {
-      Triples += '-';
-      Triples += CurDep->getOffloadingArch();
-    }
-  }
-  CmdArgs.push_back(TCArgs.MakeArgString(Triples));
-
-  // Get bundled file command.
-  CmdArgs.push_back(
-      TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename()));
-
-  // Get unbundled files command.
-  SmallString<128> UB;
-  UB += "-inputs=";
-  for (unsigned I = 0; I < Inputs.size(); ++I) {
-    if (I)
-      UB += ',';
-
-    // Find ToolChain for this input.
-    const ToolChain *CurTC = &getToolChain();
-    if (const auto *OA = dyn_cast<OffloadAction>(JA.getInputs()[I])) {
-      CurTC = nullptr;
-      OA->doOnEachDependence([&](Action *, const ToolChain *TC, const char *) {
-        assert(CurTC == nullptr && "Expected one dependence!");
-        CurTC = TC;
-      });
-    }
-    UB += CurTC->getInputFilename(Inputs[I]);
-  }
-  CmdArgs.push_back(TCArgs.MakeArgString(UB));
-
-  // All the inputs are encoded as commands.
-  C.addCommand(llvm::make_unique<Command>(
-      JA, *this,
-      TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())),
-      CmdArgs, None));
-}
-
-void OffloadBundler::ConstructJobMultipleOutputs(
-    Compilation &C, const JobAction &JA, const InputInfoList &Outputs,
-    const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs,
-    const char *LinkingOutput) const {
-  // The version with multiple outputs is expected to refer to a unbundling job.
-  auto &UA = cast<OffloadUnbundlingJobAction>(JA);
-
-  // The unbundling command looks like this:
-  // clang-offload-bundler -type=bc
-  //   -targets=host-triple,openmp-triple1,openmp-triple2
-  //   -inputs=input_file
-  //   -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2"
-  //   -unbundle
-
-  ArgStringList CmdArgs;
-
-  assert(Inputs.size() == 1 && "Expecting to unbundle a single file!");
-  InputInfo Input = Inputs.front();
-
-  // Get the type.
-  CmdArgs.push_back(TCArgs.MakeArgString(
-      Twine("-type=") + types::getTypeTempSuffix(Input.getType())));
-
-  // Get the targets.
-  SmallString<128> Triples;
-  Triples += "-targets=";
-  auto DepInfo = UA.getDependentActionsInfo();
-  for (unsigned I = 0; I < DepInfo.size(); ++I) {
-    if (I)
-      Triples += ',';
-
-    auto &Dep = DepInfo[I];
-    Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind);
-    Triples += '-';
-    Triples += Dep.DependentToolChain->getTriple().normalize();
-    if (Dep.DependentOffloadKind == Action::OFK_HIP &&
-        !Dep.DependentBoundArch.empty()) {
-      Triples += '-';
-      Triples += Dep.DependentBoundArch;
-    }
-  }
-
-  CmdArgs.push_back(TCArgs.MakeArgString(Triples));
-
-  // Get bundled file command.
-  CmdArgs.push_back(
-      TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename()));
-
-  // Get unbundled files command.
-  SmallString<128> UB;
-  UB += "-outputs=";
-  for (unsigned I = 0; I < Outputs.size(); ++I) {
-    if (I)
-      UB += ',';
-    UB += DepInfo[I].DependentToolChain->getInputFilename(Outputs[I]);
-  }
-  CmdArgs.push_back(TCArgs.MakeArgString(UB));
-  CmdArgs.push_back("-unbundle");
-
-  // All the inputs are encoded as commands.
-  C.addCommand(llvm::make_unique<Command>(
-      JA, *this,
-      TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())),
-      CmdArgs, None));
-}