Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 349 deletions

diff --git a/gnu/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp b/gnu/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
deleted file mode 100644
index 3bf8dd40892..00000000000
--- a/gnu/llvm/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
+++ /dev/null
@@ -1,349 +0,0 @@
-//===- WebAssemblyTargetMachine.cpp - Define TargetMachine for WebAssembly -==//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// This file defines the WebAssembly-specific subclass of TargetMachine.
-///
-//===----------------------------------------------------------------------===//
-
-#include "WebAssemblyTargetMachine.h"
-#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
-#include "WebAssembly.h"
-#include "WebAssemblyTargetObjectFile.h"
-#include "WebAssemblyTargetTransformInfo.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/Passes.h"
-#include "llvm/CodeGen/RegAllocRegistry.h"
-#include "llvm/CodeGen/TargetPassConfig.h"
-#include "llvm/IR/Function.h"
-#include "llvm/Support/TargetRegistry.h"
-#include "llvm/Target/TargetOptions.h"
-#include "llvm/Transforms/Scalar.h"
-#include "llvm/Transforms/Utils.h"
-using namespace llvm;
-
-#define DEBUG_TYPE "wasm"
-
-// Emscripten's asm.js-style exception handling
-static cl::opt<bool> EnableEmException(
-    "enable-emscripten-cxx-exceptions",
-    cl::desc("WebAssembly Emscripten-style exception handling"),
-    cl::init(false));
-
-// Emscripten's asm.js-style setjmp/longjmp handling
-static cl::opt<bool> EnableEmSjLj(
-    "enable-emscripten-sjlj",
-    cl::desc("WebAssembly Emscripten-style setjmp/longjmp handling"),
-    cl::init(false));
-
-extern "C" void LLVMInitializeWebAssemblyTarget() {
-  // Register the target.
-  RegisterTargetMachine<WebAssemblyTargetMachine> X(
-      getTheWebAssemblyTarget32());
-  RegisterTargetMachine<WebAssemblyTargetMachine> Y(
-      getTheWebAssemblyTarget64());
-
-  // Register backend passes
-  auto &PR = *PassRegistry::getPassRegistry();
-  initializeWebAssemblyAddMissingPrototypesPass(PR);
-  initializeWebAssemblyLowerEmscriptenEHSjLjPass(PR);
-  initializeLowerGlobalDtorsPass(PR);
-  initializeFixFunctionBitcastsPass(PR);
-  initializeOptimizeReturnedPass(PR);
-  initializeWebAssemblyArgumentMovePass(PR);
-  initializeWebAssemblySetP2AlignOperandsPass(PR);
-  initializeWebAssemblyEHRestoreStackPointerPass(PR);
-  initializeWebAssemblyReplacePhysRegsPass(PR);
-  initializeWebAssemblyPrepareForLiveIntervalsPass(PR);
-  initializeWebAssemblyOptimizeLiveIntervalsPass(PR);
-  initializeWebAssemblyMemIntrinsicResultsPass(PR);
-  initializeWebAssemblyRegStackifyPass(PR);
-  initializeWebAssemblyRegColoringPass(PR);
-  initializeWebAssemblyExplicitLocalsPass(PR);
-  initializeWebAssemblyFixIrreducibleControlFlowPass(PR);
-  initializeWebAssemblyLateEHPreparePass(PR);
-  initializeWebAssemblyExceptionInfoPass(PR);
-  initializeWebAssemblyCFGSortPass(PR);
-  initializeWebAssemblyCFGStackifyPass(PR);
-  initializeWebAssemblyLowerBrUnlessPass(PR);
-  initializeWebAssemblyRegNumberingPass(PR);
-  initializeWebAssemblyPeepholePass(PR);
-  initializeWebAssemblyCallIndirectFixupPass(PR);
-}
-
-//===----------------------------------------------------------------------===//
-// WebAssembly Lowering public interface.
-//===----------------------------------------------------------------------===//
-
-static Reloc::Model getEffectiveRelocModel(Optional<Reloc::Model> RM) {
-  if (!RM.hasValue()) {
-    // Default to static relocation model.  This should always be more optimial
-    // than PIC since the static linker can determine all global addresses and
-    // assume direct function calls.
-    return Reloc::Static;
-  }
-  return *RM;
-}
-
-/// Create an WebAssembly architecture model.
-///
-WebAssemblyTargetMachine::WebAssemblyTargetMachine(
-    const Target &T, const Triple &TT, StringRef CPU, StringRef FS,
-    const TargetOptions &Options, Optional<Reloc::Model> RM,
-    Optional<CodeModel::Model> CM, CodeGenOpt::Level OL, bool JIT)
-    : LLVMTargetMachine(T,
-                        TT.isArch64Bit() ? "e-m:e-p:64:64-i64:64-n32:64-S128"
-                                         : "e-m:e-p:32:32-i64:64-n32:64-S128",
-                        TT, CPU, FS, Options, getEffectiveRelocModel(RM),
-                        getEffectiveCodeModel(CM, CodeModel::Large), OL),
-      TLOF(new WebAssemblyTargetObjectFile()) {
-  // WebAssembly type-checks instructions, but a noreturn function with a return
-  // type that doesn't match the context will cause a check failure. So we lower
-  // LLVM 'unreachable' to ISD::TRAP and then lower that to WebAssembly's
-  // 'unreachable' instructions which is meant for that case.
-  this->Options.TrapUnreachable = true;
-
-  // WebAssembly treats each function as an independent unit. Force
-  // -ffunction-sections, effectively, so that we can emit them independently.
-  this->Options.FunctionSections = true;
-  this->Options.DataSections = true;
-  this->Options.UniqueSectionNames = true;
-
-  initAsmInfo();
-
-  // Note that we don't use setRequiresStructuredCFG(true). It disables
-  // optimizations than we're ok with, and want, such as critical edge
-  // splitting and tail merging.
-}
-
-WebAssemblyTargetMachine::~WebAssemblyTargetMachine() {}
-
-const WebAssemblySubtarget *
-WebAssemblyTargetMachine::getSubtargetImpl(const Function &F) const {
-  Attribute CPUAttr = F.getFnAttribute("target-cpu");
-  Attribute FSAttr = F.getFnAttribute("target-features");
-
-  std::string CPU = !CPUAttr.hasAttribute(Attribute::None)
-                        ? CPUAttr.getValueAsString().str()
-                        : TargetCPU;
-  std::string FS = !FSAttr.hasAttribute(Attribute::None)
-                       ? FSAttr.getValueAsString().str()
-                       : TargetFS;
-
-  auto &I = SubtargetMap[CPU + FS];
-  if (!I) {
-    // This needs to be done before we create a new subtarget since any
-    // creation will depend on the TM and the code generation flags on the
-    // function that reside in TargetOptions.
-    resetTargetOptions(F);
-    I = llvm::make_unique<WebAssemblySubtarget>(TargetTriple, CPU, FS, *this);
-  }
-  return I.get();
-}
-
-namespace {
-class StripThreadLocal final : public ModulePass {
-  // The default thread model for wasm is single, where thread-local variables
-  // are identical to regular globals and should be treated the same. So this
-  // pass just converts all GlobalVariables to NotThreadLocal
-  static char ID;
-
-public:
-  StripThreadLocal() : ModulePass(ID) {}
-  bool runOnModule(Module &M) override {
-    for (auto &GV : M.globals())
-      GV.setThreadLocalMode(GlobalValue::ThreadLocalMode::NotThreadLocal);
-    return true;
-  }
-};
-char StripThreadLocal::ID = 0;
-
-/// WebAssembly Code Generator Pass Configuration Options.
-class WebAssemblyPassConfig final : public TargetPassConfig {
-public:
-  WebAssemblyPassConfig(WebAssemblyTargetMachine &TM, PassManagerBase &PM)
-      : TargetPassConfig(TM, PM) {}
-
-  WebAssemblyTargetMachine &getWebAssemblyTargetMachine() const {
-    return getTM<WebAssemblyTargetMachine>();
-  }
-
-  FunctionPass *createTargetRegisterAllocator(bool) override;
-
-  void addIRPasses() override;
-  bool addInstSelector() override;
-  void addPostRegAlloc() override;
-  bool addGCPasses() override { return false; }
-  void addPreEmitPass() override;
-};
-} // end anonymous namespace
-
-TargetTransformInfo
-WebAssemblyTargetMachine::getTargetTransformInfo(const Function &F) {
-  return TargetTransformInfo(WebAssemblyTTIImpl(this, F));
-}
-
-TargetPassConfig *
-WebAssemblyTargetMachine::createPassConfig(PassManagerBase &PM) {
-  return new WebAssemblyPassConfig(*this, PM);
-}
-
-FunctionPass *WebAssemblyPassConfig::createTargetRegisterAllocator(bool) {
-  return nullptr; // No reg alloc
-}
-
-//===----------------------------------------------------------------------===//
-// The following functions are called from lib/CodeGen/Passes.cpp to modify
-// the CodeGen pass sequence.
-//===----------------------------------------------------------------------===//
-
-void WebAssemblyPassConfig::addIRPasses() {
-  if (TM->Options.ThreadModel == ThreadModel::Single) {
-    // In "single" mode, atomics get lowered to non-atomics.
-    addPass(createLowerAtomicPass());
-    addPass(new StripThreadLocal());
-  } else {
-    // Expand some atomic operations. WebAssemblyTargetLowering has hooks which
-    // control specifically what gets lowered.
-    addPass(createAtomicExpandPass());
-  }
-
-  // Add signatures to prototype-less function declarations
-  addPass(createWebAssemblyAddMissingPrototypes());
-
-  // Lower .llvm.global_dtors into .llvm_global_ctors with __cxa_atexit calls.
-  addPass(createWebAssemblyLowerGlobalDtors());
-
-  // Fix function bitcasts, as WebAssembly requires caller and callee signatures
-  // to match.
-  addPass(createWebAssemblyFixFunctionBitcasts());
-
-  // Optimize "returned" function attributes.
-  if (getOptLevel() != CodeGenOpt::None)
-    addPass(createWebAssemblyOptimizeReturned());
-
-  // If exception handling is not enabled and setjmp/longjmp handling is
-  // enabled, we lower invokes into calls and delete unreachable landingpad
-  // blocks. Lowering invokes when there is no EH support is done in
-  // TargetPassConfig::addPassesToHandleExceptions, but this runs after this
-  // function and SjLj handling expects all invokes to be lowered before.
-  if (!EnableEmException &&
-      TM->Options.ExceptionModel == ExceptionHandling::None) {
-    addPass(createLowerInvokePass());
-    // The lower invoke pass may create unreachable code. Remove it in order not
-    // to process dead blocks in setjmp/longjmp handling.
-    addPass(createUnreachableBlockEliminationPass());
-  }
-
-  // Handle exceptions and setjmp/longjmp if enabled.
-  if (EnableEmException || EnableEmSjLj)
-    addPass(createWebAssemblyLowerEmscriptenEHSjLj(EnableEmException,
-                                                   EnableEmSjLj));
-
-  TargetPassConfig::addIRPasses();
-}
-
-bool WebAssemblyPassConfig::addInstSelector() {
-  (void)TargetPassConfig::addInstSelector();
-  addPass(
-      createWebAssemblyISelDag(getWebAssemblyTargetMachine(), getOptLevel()));
-  // Run the argument-move pass immediately after the ScheduleDAG scheduler
-  // so that we can fix up the ARGUMENT instructions before anything else
-  // sees them in the wrong place.
-  addPass(createWebAssemblyArgumentMove());
-  // Set the p2align operands. This information is present during ISel, however
-  // it's inconvenient to collect. Collect it now, and update the immediate
-  // operands.
-  addPass(createWebAssemblySetP2AlignOperands());
-  return false;
-}
-
-void WebAssemblyPassConfig::addPostRegAlloc() {
-  // TODO: The following CodeGen passes don't currently support code containing
-  // virtual registers. Consider removing their restrictions and re-enabling
-  // them.
-
-  // These functions all require the NoVRegs property.
-  disablePass(&MachineCopyPropagationID);
-  disablePass(&PostRAMachineSinkingID);
-  disablePass(&PostRASchedulerID);
-  disablePass(&FuncletLayoutID);
-  disablePass(&StackMapLivenessID);
-  disablePass(&LiveDebugValuesID);
-  disablePass(&PatchableFunctionID);
-  disablePass(&ShrinkWrapID);
-
-  TargetPassConfig::addPostRegAlloc();
-}
-
-void WebAssemblyPassConfig::addPreEmitPass() {
-  TargetPassConfig::addPreEmitPass();
-
-  // Restore __stack_pointer global after an exception is thrown.
-  addPass(createWebAssemblyEHRestoreStackPointer());
-
-  // Now that we have a prologue and epilogue and all frame indices are
-  // rewritten, eliminate SP and FP. This allows them to be stackified,
-  // colored, and numbered with the rest of the registers.
-  addPass(createWebAssemblyReplacePhysRegs());
-
-  // Rewrite pseudo call_indirect instructions as real instructions.
-  // This needs to run before register stackification, because we change the
-  // order of the arguments.
-  addPass(createWebAssemblyCallIndirectFixup());
-
-  // Eliminate multiple-entry loops.
-  addPass(createWebAssemblyFixIrreducibleControlFlow());
-
-  // Do various transformations for exception handling.
-  addPass(createWebAssemblyLateEHPrepare());
-
-  if (getOptLevel() != CodeGenOpt::None) {
-    // LiveIntervals isn't commonly run this late. Re-establish preconditions.
-    addPass(createWebAssemblyPrepareForLiveIntervals());
-
-    // Depend on LiveIntervals and perform some optimizations on it.
-    addPass(createWebAssemblyOptimizeLiveIntervals());
-
-    // Prepare memory intrinsic calls for register stackifying.
-    addPass(createWebAssemblyMemIntrinsicResults());
-
-    // Mark registers as representing wasm's value stack. This is a key
-    // code-compression technique in WebAssembly. We run this pass (and
-    // MemIntrinsicResults above) very late, so that it sees as much code as
-    // possible, including code emitted by PEI and expanded by late tail
-    // duplication.
-    addPass(createWebAssemblyRegStackify());
-
-    // Run the register coloring pass to reduce the total number of registers.
-    // This runs after stackification so that it doesn't consider registers
-    // that become stackified.
-    addPass(createWebAssemblyRegColoring());
-  }
-
-  // Insert explicit local.get and local.set operators.
-  addPass(createWebAssemblyExplicitLocals());
-
-  // Sort the blocks of the CFG into topological order, a prerequisite for
-  // BLOCK and LOOP markers.
-  addPass(createWebAssemblyCFGSort());
-
-  // Insert BLOCK and LOOP markers.
-  addPass(createWebAssemblyCFGStackify());
-
-  // Lower br_unless into br_if.
-  addPass(createWebAssemblyLowerBrUnless());
-
-  // Perform the very last peephole optimizations on the code.
-  if (getOptLevel() != CodeGenOpt::None)
-    addPass(createWebAssemblyPeephole());
-
-  // Create a mapping from LLVM CodeGen virtual registers to wasm registers.
-  addPass(createWebAssemblyRegNumbering());
-}