1 files changed, 0 insertions, 171 deletions
diff --git a/contrib/llvm/lib/Transforms/Utils/EntryExitInstrumenter.cpp b/contrib/llvm/lib/Transforms/Utils/EntryExitInstrumenter.cpp
deleted file mode 100644
index 4aa40eeadda4..000000000000
--- a/contrib/llvm/lib/Transforms/Utils/EntryExitInstrumenter.cpp
+++ /dev/null
@@ -1,171 +0,0 @@
-//===- EntryExitInstrumenter.cpp - Function Entry/Exit Instrumentation ----===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Transforms/Utils/EntryExitInstrumenter.h"
-#include "llvm/Analysis/GlobalsModRef.h"
-#include "llvm/IR/DebugInfoMetadata.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Type.h"
-#include "llvm/Pass.h"
-#include "llvm/Transforms/Utils.h"
-using namespace llvm;
-
-static void insertCall(Function &CurFn, StringRef Func,
-                       Instruction *InsertionPt, DebugLoc DL) {
-  Module &M = *InsertionPt->getParent()->getParent()->getParent();
-  LLVMContext &C = InsertionPt->getParent()->getContext();
-
-  if (Func == "mcount" ||
-      Func == ".mcount" ||
-      Func == "\01__gnu_mcount_nc" ||
-      Func == "\01_mcount" ||
-      Func == "\01mcount" ||
-      Func == "__mcount" ||
-      Func == "_mcount" ||
-      Func == "__cyg_profile_func_enter_bare") {
-    FunctionCallee Fn = M.getOrInsertFunction(Func, Type::getVoidTy(C));
-    CallInst *Call = CallInst::Create(Fn, "", InsertionPt);
-    Call->setDebugLoc(DL);
-    return;
-  }
-
-  if (Func == "__cyg_profile_func_enter" || Func == "__cyg_profile_func_exit") {
-    Type *ArgTypes[] = {Type::getInt8PtrTy(C), Type::getInt8PtrTy(C)};
-
-    FunctionCallee Fn = M.getOrInsertFunction(
-        Func, FunctionType::get(Type::getVoidTy(C), ArgTypes, false));
-
-    Instruction *RetAddr = CallInst::Create(
-        Intrinsic::getDeclaration(&M, Intrinsic::returnaddress),
-        ArrayRef<Value *>(ConstantInt::get(Type::getInt32Ty(C), 0)), "",
-        InsertionPt);
-    RetAddr->setDebugLoc(DL);
-
-    Value *Args[] = {ConstantExpr::getBitCast(&CurFn, Type::getInt8PtrTy(C)),
-                     RetAddr};
-
-    CallInst *Call =
-        CallInst::Create(Fn, ArrayRef<Value *>(Args), "", InsertionPt);
-    Call->setDebugLoc(DL);
-    return;
-  }
-
-  // We only know how to call a fixed set of instrumentation functions, because
-  // they all expect different arguments, etc.
-  report_fatal_error(Twine("Unknown instrumentation function: '") + Func + "'");
-}
-
-static bool runOnFunction(Function &F, bool PostInlining) {
-  StringRef EntryAttr = PostInlining ? "instrument-function-entry-inlined"
-                                     : "instrument-function-entry";
-
-  StringRef ExitAttr = PostInlining ? "instrument-function-exit-inlined"
-                                    : "instrument-function-exit";
-
-  StringRef EntryFunc = F.getFnAttribute(EntryAttr).getValueAsString();
-  StringRef ExitFunc = F.getFnAttribute(ExitAttr).getValueAsString();
-
-  bool Changed = false;
-
-  // If the attribute is specified, insert instrumentation and then "consume"
-  // the attribute so that it's not inserted again if the pass should happen to
-  // run later for some reason.
-
-  if (!EntryFunc.empty()) {
-    DebugLoc DL;
-    if (auto SP = F.getSubprogram())
-      DL = DebugLoc::get(SP->getScopeLine(), 0, SP);
-
-    insertCall(F, EntryFunc, &*F.begin()->getFirstInsertionPt(), DL);
-    Changed = true;
-    F.removeAttribute(AttributeList::FunctionIndex, EntryAttr);
-  }
-
-  if (!ExitFunc.empty()) {
-    for (BasicBlock &BB : F) {
-      Instruction *T = BB.getTerminator();
-      if (!isa<ReturnInst>(T))
-        continue;
-
-      // If T is preceded by a musttail call, that's the real terminator.
-      Instruction *Prev = T->getPrevNode();
-      if (BitCastInst *BCI = dyn_cast_or_null<BitCastInst>(Prev))
-        Prev = BCI->getPrevNode();
-      if (CallInst *CI = dyn_cast_or_null<CallInst>(Prev)) {
-        if (CI->isMustTailCall())
-          T = CI;
-      }
-
-      DebugLoc DL;
-      if (DebugLoc TerminatorDL = T->getDebugLoc())
-        DL = TerminatorDL;
-      else if (auto SP = F.getSubprogram())
-        DL = DebugLoc::get(0, 0, SP);
-
-      insertCall(F, ExitFunc, T, DL);
-      Changed = true;
-    }
-    F.removeAttribute(AttributeList::FunctionIndex, ExitAttr);
-  }
-
-  return Changed;
-}
-
-namespace {
-struct EntryExitInstrumenter : public FunctionPass {
-  static char ID;
-  EntryExitInstrumenter() : FunctionPass(ID) {
-    initializeEntryExitInstrumenterPass(*PassRegistry::getPassRegistry());
-  }
-  void getAnalysisUsage(AnalysisUsage &AU) const override {
-    AU.addPreserved<GlobalsAAWrapperPass>();
-  }
-  bool runOnFunction(Function &F) override { return ::runOnFunction(F, false); }
-};
-char EntryExitInstrumenter::ID = 0;
-
-struct PostInlineEntryExitInstrumenter : public FunctionPass {
-  static char ID;
-  PostInlineEntryExitInstrumenter() : FunctionPass(ID) {
-    initializePostInlineEntryExitInstrumenterPass(
-        *PassRegistry::getPassRegistry());
-  }
-  void getAnalysisUsage(AnalysisUsage &AU) const override {
-    AU.addPreserved<GlobalsAAWrapperPass>();
-  }
-  bool runOnFunction(Function &F) override { return ::runOnFunction(F, true); }
-};
-char PostInlineEntryExitInstrumenter::ID = 0;
-}
-
-INITIALIZE_PASS(
-    EntryExitInstrumenter, "ee-instrument",
-    "Instrument function entry/exit with calls to e.g. mcount() (pre inlining)",
-    false, false)
-INITIALIZE_PASS(PostInlineEntryExitInstrumenter, "post-inline-ee-instrument",
-                "Instrument function entry/exit with calls to e.g. mcount() "
-                "(post inlining)",
-                false, false)
-
-FunctionPass *llvm::createEntryExitInstrumenterPass() {
-  return new EntryExitInstrumenter();
-}
-
-FunctionPass *llvm::createPostInlineEntryExitInstrumenterPass() {
-  return new PostInlineEntryExitInstrumenter();
-}
-
-PreservedAnalyses
-llvm::EntryExitInstrumenterPass::run(Function &F, FunctionAnalysisManager &AM) {
-  runOnFunction(F, PostInlining);
-  PreservedAnalyses PA;
-  PA.preserveSet<CFGAnalyses>();
-  return PA;
-}