From 61bc4be26e777760f3cf2f903d3e6c2a8e2dfcb0 Mon Sep 17 00:00:00 2001 From: Rafael Espindola Date: Mon, 14 Oct 2013 16:46:46 +0000 Subject: [PATCH] Remove lib/Transforms/Instrumentation/ProfilingUtils.* They were leftover from the old profiling support. Patch by Alastair Murray. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192605 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Instrumentation/CMakeLists.txt | 1 - .../Instrumentation/GCOVProfiling.cpp | 1 - .../Instrumentation/ProfilingUtils.cpp | 169 ------------------ .../Instrumentation/ProfilingUtils.h | 36 ---- 4 files changed, 207 deletions(-) delete mode 100644 lib/Transforms/Instrumentation/ProfilingUtils.cpp delete mode 100644 lib/Transforms/Instrumentation/ProfilingUtils.h diff --git a/lib/Transforms/Instrumentation/CMakeLists.txt b/lib/Transforms/Instrumentation/CMakeLists.txt index 71a0ecd0f1c..35635934b81 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 61c53b49f78..f03b503c93e 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 4b3de6d7fc3..00000000000 --- 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 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(InsertPos)) ++InsertPos; - - std::vector GEPIndices(2, - Constant::getNullValue(Type::getInt32Ty(Context))); - unsigned NumElements = 0; - if (Array) { - Args[2] = ConstantExpr::getGetElementPtr(Array, GEPIndices); - NumElements = - cast(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(InsertPos)) - ++InsertPos; - - LLVMContext &Context = BB->getContext(); - - // Create the getelementptr constant expression - std::vector 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 dtors; - if (GlobalVariable *GlobalDtors = Mod->getNamedGlobal("llvm.global_dtors")) { - if (ConstantArray *InitList = - dyn_cast(GlobalDtors->getInitializer())) { - for (unsigned i = 0, e = InitList->getType()->getNumElements(); - i != e; ++i) - dtors.push_back(cast(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(GlobalDtors->getType()->getElementType()), dtors)); -} diff --git a/lib/Transforms/Instrumentation/ProfilingUtils.h b/lib/Transforms/Instrumentation/ProfilingUtils.h deleted file mode 100644 index 09b22171ff0..00000000000 --- 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 -- 2.34.1