1 files changed, 0 insertions, 156 deletions
diff --git a/gnu/llvm/lib/Transforms/IPO/AlwaysInliner.cpp b/gnu/llvm/lib/Transforms/IPO/AlwaysInliner.cpp
deleted file mode 100644
index 07138718ce2..00000000000
--- a/gnu/llvm/lib/Transforms/IPO/AlwaysInliner.cpp
+++ /dev/null
@@ -1,156 +0,0 @@
-//===- InlineAlways.cpp - Code to inline always_inline functions ----------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements a custom inliner that handles only functions that
-// are marked as "always inline".
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Transforms/IPO/AlwaysInliner.h"
-#include "llvm/ADT/SetVector.h"
-#include "llvm/Analysis/AssumptionCache.h"
-#include "llvm/Analysis/InlineCost.h"
-#include "llvm/Analysis/TargetLibraryInfo.h"
-#include "llvm/IR/CallSite.h"
-#include "llvm/IR/CallingConv.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Type.h"
-#include "llvm/Transforms/IPO.h"
-#include "llvm/Transforms/IPO/Inliner.h"
-#include "llvm/Transforms/Utils/Cloning.h"
-#include "llvm/Transforms/Utils/ModuleUtils.h"
-
-using namespace llvm;
-
-#define DEBUG_TYPE "inline"
-
-PreservedAnalyses AlwaysInlinerPass::run(Module &M, ModuleAnalysisManager &) {
-  InlineFunctionInfo IFI;
-  SmallSetVector<CallSite, 16> Calls;
-  bool Changed = false;
-  SmallVector<Function *, 16> InlinedFunctions;
-  for (Function &F : M)
-    if (!F.isDeclaration() && F.hasFnAttribute(Attribute::AlwaysInline) &&
-        isInlineViable(F)) {
-      Calls.clear();
-
-      for (User *U : F.users())
-        if (auto CS = CallSite(U))
-          if (CS.getCalledFunction() == &F)
-            Calls.insert(CS);
-
-      for (CallSite CS : Calls)
-        // FIXME: We really shouldn't be able to fail to inline at this point!
-        // We should do something to log or check the inline failures here.
-        Changed |=
-            InlineFunction(CS, IFI, /*CalleeAAR=*/nullptr, InsertLifetime);
-
-      // Remember to try and delete this function afterward. This both avoids
-      // re-walking the rest of the module and avoids dealing with any iterator
-      // invalidation issues while deleting functions.
-      InlinedFunctions.push_back(&F);
-    }
-
-  // Remove any live functions.
-  erase_if(InlinedFunctions, [&](Function *F) {
-    F->removeDeadConstantUsers();
-    return !F->isDefTriviallyDead();
-  });
-
-  // Delete the non-comdat ones from the module and also from our vector.
-  auto NonComdatBegin = partition(
-      InlinedFunctions, [&](Function *F) { return F->hasComdat(); });
-  for (Function *F : make_range(NonComdatBegin, InlinedFunctions.end()))
-    M.getFunctionList().erase(F);
-  InlinedFunctions.erase(NonComdatBegin, InlinedFunctions.end());
-
-  if (!InlinedFunctions.empty()) {
-    // Now we just have the comdat functions. Filter out the ones whose comdats
-    // are not actually dead.
-    filterDeadComdatFunctions(M, InlinedFunctions);
-    // The remaining functions are actually dead.
-    for (Function *F : InlinedFunctions)
-      M.getFunctionList().erase(F);
-  }
-
-  return Changed ? PreservedAnalyses::none() : PreservedAnalyses::all();
-}
-
-namespace {
-
-/// Inliner pass which only handles "always inline" functions.
-///
-/// Unlike the \c AlwaysInlinerPass, this uses the more heavyweight \c Inliner
-/// base class to provide several facilities such as array alloca merging.
-class AlwaysInlinerLegacyPass : public LegacyInlinerBase {
-
-public:
-  AlwaysInlinerLegacyPass() : LegacyInlinerBase(ID, /*InsertLifetime*/ true) {
-    initializeAlwaysInlinerLegacyPassPass(*PassRegistry::getPassRegistry());
-  }
-
-  AlwaysInlinerLegacyPass(bool InsertLifetime)
-      : LegacyInlinerBase(ID, InsertLifetime) {
-    initializeAlwaysInlinerLegacyPassPass(*PassRegistry::getPassRegistry());
-  }
-
-  /// Main run interface method.  We override here to avoid calling skipSCC().
-  bool runOnSCC(CallGraphSCC &SCC) override { return inlineCalls(SCC); }
-
-  static char ID; // Pass identification, replacement for typeid
-
-  InlineCost getInlineCost(CallSite CS) override;
-
-  using llvm::Pass::doFinalization;
-  bool doFinalization(CallGraph &CG) override {
-    return removeDeadFunctions(CG, /*AlwaysInlineOnly=*/true);
-  }
-};
-}
-
-char AlwaysInlinerLegacyPass::ID = 0;
-INITIALIZE_PASS_BEGIN(AlwaysInlinerLegacyPass, "always-inline",
-                      "Inliner for always_inline functions", false, false)
-INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker)
-INITIALIZE_PASS_DEPENDENCY(CallGraphWrapperPass)
-INITIALIZE_PASS_DEPENDENCY(ProfileSummaryInfoWrapperPass)
-INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
-INITIALIZE_PASS_END(AlwaysInlinerLegacyPass, "always-inline",
-                    "Inliner for always_inline functions", false, false)
-
-Pass *llvm::createAlwaysInlinerLegacyPass(bool InsertLifetime) {
-  return new AlwaysInlinerLegacyPass(InsertLifetime);
-}
-
-/// Get the inline cost for the always-inliner.
-///
-/// The always inliner *only* handles functions which are marked with the
-/// attribute to force inlining. As such, it is dramatically simpler and avoids
-/// using the powerful (but expensive) inline cost analysis. Instead it uses
-/// a very simple and boring direct walk of the instructions looking for
-/// impossible-to-inline constructs.
-///
-/// Note, it would be possible to go to some lengths to cache the information
-/// computed here, but as we only expect to do this for relatively few and
-/// small functions which have the explicit attribute to force inlining, it is
-/// likely not worth it in practice.
-InlineCost AlwaysInlinerLegacyPass::getInlineCost(CallSite CS) {
-  Function *Callee = CS.getCalledFunction();
-
-  // Only inline direct calls to functions with always-inline attributes
-  // that are viable for inlining. FIXME: We shouldn't even get here for
-  // declarations.
-  if (Callee && !Callee->isDeclaration() &&
-      CS.hasFnAttr(Attribute::AlwaysInline) && isInlineViable(*Callee))
-    return InlineCost::getAlways("always inliner");
-
-  return InlineCost::getNever("always inliner");
-}