#include "llvm/CodeGen/GlobalMergeFunctions.h"#include "llvm/ADT/Statistic.h"#include "llvm/Analysis/ModuleSummaryAnalysis.h"#include "llvm/CGData/CodeGenData.h"#include "llvm/CGData/CodeGenDataWriter.h"#include "llvm/CodeGen/Passes.h"#include "llvm/IR/IRBuilder.h"#include "llvm/IR/StructuralHash.h"#include "llvm/InitializePasses.h"#include "llvm/Support/CommandLine.h"#include "llvm/Transforms/Utils/ModuleUtils.h"Go to the source code of this file.
Classes | |
| struct | FuncMergeInfo |
| Tuple to hold function info to process merging. More... | |
Macros | |
| #define | DEBUG_TYPE "global-merge-func" |
Functions | |
| STATISTIC (NumMergedFunctions, "Number of functions that are actually merged using function hash") | |
| STATISTIC (NumAnalyzedModues, "Number of modules that are analyzed") | |
| STATISTIC (NumAnalyzedFunctions, "Number of functions that are analyzed") | |
| STATISTIC (NumEligibleFunctions, "Number of functions that are eligible") | |
| static bool | isCalleeOperand (const CallBase *CI, unsigned OpIdx) |
Returns true if the \OpIdx operand of CI is the callee operand. | |
| static bool | canParameterizeCallOperand (const CallBase *CI, unsigned OpIdx) |
| bool | isEligibleFunction (Function *F) |
Returns true if function F is eligible for merging. | |
| static bool | isEligibleInstructionForConstantSharing (const Instruction *I) |
| static bool | ignoreOp (const Instruction *I, unsigned OpIdx) |
| static Function * | createMergedFunction (FuncMergeInfo &FI, ArrayRef< Type * > ConstParamTypes, const ParamLocsVecTy &ParamLocsVec) |
| static void | createThunk (FuncMergeInfo &FI, ArrayRef< Constant * > Params, Function *ToFunc) |
| static bool | checkConstHashCompatible (const DenseMap< IndexPair, stable_hash > &OldInstOpndIndexToConstHash, const DenseMap< IndexPair, stable_hash > &CurrInstOpndIndexToConstHash) |
| static bool | checkConstLocationCompatible (const StableFunctionMap::StableFunctionEntry &SF, const IndexInstrMap &IndexInstruction, const ParamLocsVecTy &ParamLocsVec) |
| static ParamLocsVecTy | computeParamInfo (const StableFunctionMap::StableFunctionEntries &SFS) |
| INITIALIZE_PASS (GlobalMergeFuncPassWrapper, "global-merge-func", "Global merge function pass", false, false) ModulePass *llvm | |
Variables | |
| static cl::opt< bool > | DisableCGDataForMerging ("disable-cgdata-for-merging", cl::Hidden, cl::desc("Disable codegen data for function merging. Local " "merging is still enabled within a module."), cl::init(false)) |
Macro Definition Documentation
◆ DEBUG_TYPE
| #define DEBUG_TYPE "global-merge-func" |
Definition at line 25 of file GlobalMergeFunctions.cpp.
Function Documentation
◆ canParameterizeCallOperand()
Definition at line 47 of file GlobalMergeFunctions.cpp.
References llvm::dyn_cast_or_null(), llvm::CallBase::getCalledOperand(), llvm::CallBase::getOperandBundle(), isCalleeOperand(), llvm::CallBase::isInlineAsm(), llvm::CallBase::isOperandBundleOfType(), llvm::LLVMContext::OB_clang_arc_attachedcall, llvm::LLVMContext::OB_ptrauth, OpIdx, and llvm::Value::stripPointerCasts().
Referenced by ignoreOp().
◆ checkConstHashCompatible()
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static |
Definition at line 306 of file GlobalMergeFunctions.cpp.
References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::insert().
Referenced by llvm::GlobalMergeFunc::merge().
◆ checkConstLocationCompatible()
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static |
Definition at line 329 of file GlobalMergeFunctions.cpp.
References assert(), llvm::cast(), llvm::StableFunctionMap::StableFunctionEntry::IndexOperandHashMap, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::lookup(), and llvm::MapVector< KeyT, ValueT, MapType, VectorType >::size().
Referenced by llvm::GlobalMergeFunc::merge().
◆ computeParamInfo()
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static |
Definition at line 354 of file GlobalMergeFunctions.cpp.
References llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and llvm::sort().
Referenced by llvm::GlobalMergeFunc::merge().
◆ createMergedFunction()
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static |
Definition at line 186 of file GlobalMergeFunctions.cpp.
References llvm::Function::addFnAttr(), llvm::SmallVectorImpl< T >::append(), llvm::Function::arg_begin(), assert(), llvm::ArrayRef< T >::begin(), llvm::Function::begin(), llvm::Function::copyAttributesFrom(), llvm::Function::Create(), llvm::GlobalValue::DefaultStorageClass, llvm::ArrayRef< T >::end(), FuncMergeInfo::F, llvm::FunctionType::get(), llvm::Function::getArg(), llvm::Value::getName(), llvm::User::getOperand(), llvm::Value::getType(), FuncMergeInfo::IndexInstruction, llvm::GlobalValue::InternalLinkage, llvm::MapVector< KeyT, ValueT, MapType, VectorType >::lookup(), llvm::GlobalMergeFunc::MergingInstanceSuffix, llvm::Value::replaceAllUsesWith(), llvm::GlobalValue::setDLLStorageClass(), llvm::GlobalValue::setLinkage(), llvm::Function::setSubprogram(), llvm::SmallVectorTemplateCommon< T, typename >::size(), llvm::Function::splice(), and llvm::StringRef::str().
Referenced by llvm::GlobalMergeFunc::merge().
◆ createThunk()
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static |
Definition at line 251 of file GlobalMergeFunctions.cpp.
References assert(), llvm::BasicBlock::Create(), FuncMergeInfo::F, llvm::Function::getAttributes(), llvm::Function::getCallingConv(), llvm::Function::getFunctionType(), llvm::FunctionType::getNumParams(), llvm::CallBase::setAttributes(), llvm::CallBase::setCallingConv(), llvm::CallInst::setTailCallKind(), llvm::ArrayRef< T >::size(), llvm::CallingConv::SwiftTail, llvm::CallInst::TCK_MustTail, and llvm::CallInst::TCK_Tail.
Referenced by llvm::GlobalMergeFunc::merge().
◆ ignoreOp()
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static |
Definition at line 133 of file GlobalMergeFunctions.cpp.
References canParameterizeCallOperand(), llvm::dyn_cast(), I, llvm::isa(), isEligibleInstructionForConstantSharing(), and OpIdx.
Referenced by llvm::GlobalMergeFunc::analyze(), and llvm::GlobalMergeFunc::merge().
◆ INITIALIZE_PASS()
| INITIALIZE_PASS | ( | GlobalMergeFuncPassWrapper | , |
| "global-merge-func" | , | ||
| "Global merge function pass" | , | ||
| false | , | ||
| false | ) |
Definition at line 590 of file GlobalMergeFunctions.cpp.
References llvm::createGlobalMergeFuncPass().
◆ isCalleeOperand()
Returns true if the \OpIdx operand of CI is the callee operand.
Definition at line 43 of file GlobalMergeFunctions.cpp.
References llvm::CallBase::getCalledOperandUse(), llvm::User::getOperandUse(), and OpIdx.
Referenced by canParameterizeCallOperand().
◆ isEligibleFunction()
Returns true if function F is eligible for merging.
Definition at line 81 of file GlobalMergeFunctions.cpp.
References llvm::dyn_cast(), F, I, and llvm::CallingConv::SwiftTail.
Referenced by llvm::GlobalMergeFunc::analyze(), and llvm::GlobalMergeFunc::merge().
◆ isEligibleInstructionForConstantSharing()
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static |
◆ STATISTIC() [1/4]
| STATISTIC | ( | NumAnalyzedFunctions | , |
| "Number of functions that are analyzed" | ) |
◆ STATISTIC() [2/4]
| STATISTIC | ( | NumAnalyzedModues | , |
| "Number of modules that are analyzed" | ) |
◆ STATISTIC() [3/4]
| STATISTIC | ( | NumEligibleFunctions | , |
| "Number of functions that are eligible" | ) |
◆ STATISTIC() [4/4]
| STATISTIC | ( | NumMergedFunctions | , |
| "Number of functions that are actually merged using function hash" | ) |
Variable Documentation
◆ DisableCGDataForMerging
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static |
Referenced by llvm::GlobalMergeFunc::initializeMergerMode().
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