//===- ProfilingUtils.cpp - Helper functions shared by profilers ----------===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
-// This files implements a few helper functions which are used by profile
+// This file implements a few helper functions which are used by profile
// instrumentation code to instrument the code. This allows the profiler pass
// to worry about *what* to insert, and these functions take care of *how* to do
// it.
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Instructions.h"
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
void llvm::InsertProfilingInitCall(Function *MainFn, const char *FnName,
- GlobalValue *Array) {
- const Type *ArgVTy = PointerType::get(PointerType::get(Type::SByteTy));
- const PointerType *UIntPtr = PointerType::get(Type::UIntTy);
+ GlobalValue *Array,
+ PointerType *arrayType) {
+ LLVMContext &Context = MainFn->getContext();
+ const Type *ArgVTy =
+ PointerType::getUnqual(Type::getInt8PtrTy(Context));
+ const PointerType *UIntPtr = arrayType ? arrayType :
+ Type::getInt32PtrTy(Context);
Module &M = *MainFn->getParent();
- Function *InitFn = M.getOrInsertFunction(FnName, Type::IntTy, Type::IntTy,
- ArgVTy, UIntPtr, Type::UIntTy, 0);
+ Constant *InitFn = M.getOrInsertFunction(FnName, Type::getInt32Ty(Context),
+ Type::getInt32Ty(Context),
+ ArgVTy, UIntPtr,
+ Type::getInt32Ty(Context),
+ (Type *)0);
// This could force argc and argv into programs that wouldn't otherwise have
// them, but instead we just pass null values in.
std::vector<Value*> Args(4);
- Args[0] = Constant::getNullValue(Type::IntTy);
+ Args[0] = Constant::getNullValue(Type::getInt32Ty(Context));
Args[1] = Constant::getNullValue(ArgVTy);
// Skip over any allocas in the entry block.
BasicBlock::iterator InsertPos = Entry->begin();
while (isa<AllocaInst>(InsertPos)) ++InsertPos;
- std::vector<Constant*> GEPIndices(2, Constant::getNullValue(Type::IntTy));
+ std::vector<Constant*> GEPIndices(2,
+ Constant::getNullValue(Type::getInt32Ty(Context)));
unsigned NumElements = 0;
if (Array) {
- Args[2] = ConstantExpr::getGetElementPtr(Array, GEPIndices);
+ Args[2] = ConstantExpr::getGetElementPtr(Array, &GEPIndices[0],
+ GEPIndices.size());
NumElements =
cast<ArrayType>(Array->getType()->getElementType())->getNumElements();
} else {
// pass null.
Args[2] = ConstantPointerNull::get(UIntPtr);
}
- Args[3] = ConstantUInt::get(Type::UIntTy, NumElements);
-
- Instruction *InitCall = new CallInst(InitFn, Args, "newargc", InsertPos);
+ Args[3] = ConstantInt::get(Type::getInt32Ty(Context), NumElements);
+
+ CallInst *InitCall = CallInst::Create(InitFn, Args.begin(), Args.end(),
+ "newargc", InsertPos);
// If argc or argv are not available in main, just pass null values in.
- Function::aiterator AI;
- switch (MainFn->asize()) {
+ Function::arg_iterator AI;
+ switch (MainFn->arg_size()) {
default:
case 2:
- AI = MainFn->abegin(); ++AI;
+ AI = MainFn->arg_begin(); ++AI;
if (AI->getType() != ArgVTy) {
- InitCall->setOperand(2, new CastInst(AI, ArgVTy, "argv.cast", InitCall));
+ Instruction::CastOps opcode = CastInst::getCastOpcode(AI, false, ArgVTy,
+ false);
+ InitCall->setArgOperand(1,
+ CastInst::Create(opcode, AI, ArgVTy, "argv.cast", InitCall));
} else {
- InitCall->setOperand(2, AI);
+ InitCall->setArgOperand(1, AI);
}
+ /* FALL THROUGH */
case 1:
- AI = MainFn->abegin();
+ AI = MainFn->arg_begin();
// If the program looked at argc, have it look at the return value of the
// init call instead.
- if (AI->getType() != Type::IntTy) {
- if (!AI->use_empty())
- AI->replaceAllUsesWith(new CastInst(InitCall, AI->getType(), "",
- InsertPos));
- InitCall->setOperand(1, new CastInst(AI, Type::IntTy, "argc.cast",
- InitCall));
+ if (!AI->getType()->isIntegerTy(32)) {
+ Instruction::CastOps opcode;
+ if (!AI->use_empty()) {
+ opcode = CastInst::getCastOpcode(InitCall, true, AI->getType(), true);
+ AI->replaceAllUsesWith(
+ CastInst::Create(opcode, InitCall, AI->getType(), "", InsertPos));
+ }
+ opcode = CastInst::getCastOpcode(AI, true,
+ Type::getInt32Ty(Context), true);
+ InitCall->setArgOperand(0,
+ CastInst::Create(opcode, AI, Type::getInt32Ty(Context),
+ "argc.cast", InitCall));
} else {
AI->replaceAllUsesWith(InitCall);
- InitCall->setOperand(1, AI);
+ InitCall->setArgOperand(0, AI);
}
-
+
case 0: break;
}
}
void llvm::IncrementCounterInBlock(BasicBlock *BB, unsigned CounterNum,
- GlobalValue *CounterArray) {
+ GlobalValue *CounterArray, bool beginning) {
// Insert the increment after any alloca or PHI instructions...
- BasicBlock::iterator InsertPos = BB->begin();
- while (isa<AllocaInst>(InsertPos) || isa<PHINode>(InsertPos))
+ BasicBlock::iterator InsertPos = beginning ? BB->getFirstNonPHI() :
+ BB->getTerminator();
+ while (isa<AllocaInst>(InsertPos))
++InsertPos;
+ LLVMContext &Context = BB->getContext();
+
// Create the getelementptr constant expression
std::vector<Constant*> Indices(2);
- Indices[0] = Constant::getNullValue(Type::IntTy);
- Indices[1] = ConstantSInt::get(Type::IntTy, CounterNum);
- Constant *ElementPtr = ConstantExpr::getGetElementPtr(CounterArray, Indices);
+ Indices[0] = Constant::getNullValue(Type::getInt32Ty(Context));
+ Indices[1] = ConstantInt::get(Type::getInt32Ty(Context), CounterNum);
+ Constant *ElementPtr =
+ ConstantExpr::getGetElementPtr(CounterArray, &Indices[0],
+ Indices.size());
// Load, increment and store the value back.
Value *OldVal = new LoadInst(ElementPtr, "OldFuncCounter", InsertPos);
- Value *NewVal = BinaryOperator::create(Instruction::Add, OldVal,
- ConstantInt::get(Type::UIntTy, 1),
+ Value *NewVal = BinaryOperator::Create(Instruction::Add, OldVal,
+ ConstantInt::get(Type::getInt32Ty(Context), 1),
"NewFuncCounter", InsertPos);
new StoreInst(NewVal, ElementPtr, InsertPos);
}
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