aboutsummaryrefslogtreecommitdiffstats
path: root/lib/Transforms/Instrumentation
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Transforms/Instrumentation')
-rw-r--r--lib/Transforms/Instrumentation/CMakeLists.txt1
-rw-r--r--lib/Transforms/Instrumentation/GCOVProfiling.cpp1
-rw-r--r--lib/Transforms/Instrumentation/ProfilingUtils.cpp169
-rw-r--r--lib/Transforms/Instrumentation/ProfilingUtils.h36
4 files changed, 0 insertions, 207 deletions
diff --git a/lib/Transforms/Instrumentation/CMakeLists.txt b/lib/Transforms/Instrumentation/CMakeLists.txt
index 71a0ecd..3563593 100644
--- a/lib/Transforms/Instrumentation/CMakeLists.txt
+++ b/lib/Transforms/Instrumentation/CMakeLists.txt
@@ -6,7 +6,6 @@ add_llvm_library(LLVMInstrumentation
GCOVProfiling.cpp
MemorySanitizer.cpp
Instrumentation.cpp
- ProfilingUtils.cpp
ThreadSanitizer.cpp
)
diff --git a/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index 61c53b4..f03b503 100644
--- a/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -17,7 +17,6 @@
#define DEBUG_TYPE "insert-gcov-profiling"
#include "llvm/Transforms/Instrumentation.h"
-#include "ProfilingUtils.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Statistic.h"
diff --git a/lib/Transforms/Instrumentation/ProfilingUtils.cpp b/lib/Transforms/Instrumentation/ProfilingUtils.cpp
deleted file mode 100644
index 4b3de6d..0000000
--- a/lib/Transforms/Instrumentation/ProfilingUtils.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-//===- ProfilingUtils.cpp - Helper functions shared by profilers ----------===//
-//
-// 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 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 "ProfilingUtils.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/DerivedTypes.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Module.h"
-
-void llvm::InsertProfilingInitCall(Function *MainFn, const char *FnName,
- GlobalValue *Array,
- PointerType *arrayType) {
- LLVMContext &Context = MainFn->getContext();
- Type *ArgVTy =
- PointerType::getUnqual(Type::getInt8PtrTy(Context));
- PointerType *UIntPtr = arrayType ? arrayType :
- Type::getInt32PtrTy(Context);
- Module &M = *MainFn->getParent();
- 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::getInt32Ty(Context));
- Args[1] = Constant::getNullValue(ArgVTy);
-
- // Skip over any allocas in the entry block.
- BasicBlock *Entry = MainFn->begin();
- BasicBlock::iterator InsertPos = Entry->begin();
- while (isa<AllocaInst>(InsertPos)) ++InsertPos;
-
- std::vector<Constant*> GEPIndices(2,
- Constant::getNullValue(Type::getInt32Ty(Context)));
- unsigned NumElements = 0;
- if (Array) {
- Args[2] = ConstantExpr::getGetElementPtr(Array, GEPIndices);
- NumElements =
- cast<ArrayType>(Array->getType()->getElementType())->getNumElements();
- } else {
- // If this profiling instrumentation doesn't have a constant array, just
- // pass null.
- Args[2] = ConstantPointerNull::get(UIntPtr);
- }
- Args[3] = ConstantInt::get(Type::getInt32Ty(Context), NumElements);
-
- CallInst *InitCall = CallInst::Create(InitFn, Args, "newargc", InsertPos);
-
- // If argc or argv are not available in main, just pass null values in.
- Function::arg_iterator AI;
- switch (MainFn->arg_size()) {
- default:
- case 2:
- AI = MainFn->arg_begin(); ++AI;
- if (AI->getType() != ArgVTy) {
- Instruction::CastOps opcode = CastInst::getCastOpcode(AI, false, ArgVTy,
- false);
- InitCall->setArgOperand(1,
- CastInst::Create(opcode, AI, ArgVTy, "argv.cast", InitCall));
- } else {
- InitCall->setArgOperand(1, AI);
- }
- /* FALL THROUGH */
-
- case 1:
- 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()->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->setArgOperand(0, AI);
- }
-
- case 0: break;
- }
-}
-
-void llvm::IncrementCounterInBlock(BasicBlock *BB, unsigned CounterNum,
- GlobalValue *CounterArray, bool beginning) {
- // Insert the increment after any alloca or PHI instructions...
- BasicBlock::iterator InsertPos = beginning ? BB->getFirstInsertionPt() :
- 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::getInt32Ty(Context));
- Indices[1] = ConstantInt::get(Type::getInt32Ty(Context), CounterNum);
- Constant *ElementPtr =
- ConstantExpr::getGetElementPtr(CounterArray, Indices);
-
- // Load, increment and store the value back.
- Value *OldVal = new LoadInst(ElementPtr, "OldFuncCounter", InsertPos);
- Value *NewVal = BinaryOperator::Create(Instruction::Add, OldVal,
- ConstantInt::get(Type::getInt32Ty(Context), 1),
- "NewFuncCounter", InsertPos);
- new StoreInst(NewVal, ElementPtr, InsertPos);
-}
-
-void llvm::InsertProfilingShutdownCall(Function *Callee, Module *Mod) {
- // llvm.global_dtors is an array of type { i32, void ()* }. Prepare those
- // types.
- Type *GlobalDtorElems[2] = {
- Type::getInt32Ty(Mod->getContext()),
- FunctionType::get(Type::getVoidTy(Mod->getContext()), false)->getPointerTo()
- };
- StructType *GlobalDtorElemTy =
- StructType::get(Mod->getContext(), GlobalDtorElems, false);
-
- // Construct the new element we'll be adding.
- Constant *Elem[2] = {
- ConstantInt::get(Type::getInt32Ty(Mod->getContext()), 65535),
- ConstantExpr::getBitCast(Callee, GlobalDtorElems[1])
- };
-
- // If llvm.global_dtors exists, make a copy of the things in its list and
- // delete it, to replace it with one that has a larger array type.
- std::vector<Constant *> dtors;
- if (GlobalVariable *GlobalDtors = Mod->getNamedGlobal("llvm.global_dtors")) {
- if (ConstantArray *InitList =
- dyn_cast<ConstantArray>(GlobalDtors->getInitializer())) {
- for (unsigned i = 0, e = InitList->getType()->getNumElements();
- i != e; ++i)
- dtors.push_back(cast<Constant>(InitList->getOperand(i)));
- }
- GlobalDtors->eraseFromParent();
- }
-
- // Build up llvm.global_dtors with our new item in it.
- GlobalVariable *GlobalDtors = new GlobalVariable(
- *Mod, ArrayType::get(GlobalDtorElemTy, 1), false,
- GlobalValue::AppendingLinkage, NULL, "llvm.global_dtors");
-
- dtors.push_back(ConstantStruct::get(GlobalDtorElemTy, Elem));
- GlobalDtors->setInitializer(ConstantArray::get(
- cast<ArrayType>(GlobalDtors->getType()->getElementType()), dtors));
-}
diff --git a/lib/Transforms/Instrumentation/ProfilingUtils.h b/lib/Transforms/Instrumentation/ProfilingUtils.h
deleted file mode 100644
index 09b2217..0000000
--- a/lib/Transforms/Instrumentation/ProfilingUtils.h
+++ /dev/null
@@ -1,36 +0,0 @@
-//===- ProfilingUtils.h - Helper functions shared by profilers --*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines 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.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef PROFILINGUTILS_H
-#define PROFILINGUTILS_H
-
-namespace llvm {
- class BasicBlock;
- class Function;
- class GlobalValue;
- class Module;
- class PointerType;
-
- void InsertProfilingInitCall(Function *MainFn, const char *FnName,
- GlobalValue *Arr = 0,
- PointerType *arrayType = 0);
- void IncrementCounterInBlock(BasicBlock *BB, unsigned CounterNum,
- GlobalValue *CounterArray,
- bool beginning = true);
- void InsertProfilingShutdownCall(Function *Callee, Module *Mod);
-}
-
-#endif
generated by cgit v1.1 at 2024-12-24 00:37:43 +0000