GlobalMerge.cpp File Reference

#include "llvm/Transforms/Scalar.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"

Include dependency graph for GlobalMerge.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "global-merge"

Functions
	STATISTIC (NumMerged,"Number of globals merged")
	for (size_t i=0, e=Globals.size();i!=e;)

Variables
static cl::opt< bool >	EnableGlobalMergeOnConst ("global-merge-on-const", cl::Hidden, cl::desc("Enable global merge pass on constants"), cl::init(false))
INITIALIZE_PASS(GlobalMerge,"global-merge","Global Merge", false, false) bool GlobalMerge const DataLayout *	TD = TLI->getDataLayout()
unsigned	MaxOffset = TLI->getMaximalGlobalOffset()
Type *	Int32Ty = Type::getInt32Ty(M.getContext())
return	true

Macro Definition Documentation

#define DEBUG_TYPE   "global-merge"

Definition at line 54 of file GlobalMerge.cpp.

Function Documentation

for	(	size_t	i = 0,
		e	= Globals.size(); i != e;
	)

Definition at line 158 of file GlobalMerge.cpp.

References llvm::ConstantInt::get(), llvm::StructType::get(), llvm::ConstantStruct::get(), llvm::ConstantExpr::getInBoundsGetElementPtr(), llvm::DataLayout::getTypeAllocSize(), llvm::GlobalValue::InternalLinkage, and llvm::GlobalVariable::NotThreadLocal.

STATISTIC	(	NumMerged	,
		"Number of globals merged"
	)

Variable Documentation

cl::opt<bool> EnableGlobalMergeOnConst("global-merge-on-const", cl::Hidden, cl::desc("Enable global merge pass on constants"), cl::init(false))

static

Type* Int32Ty = Type::getInt32Ty(M.getContext())

Definition at line 156 of file GlobalMerge.cpp.

Referenced by llvm::Module::addModuleFlag(), llvm::MDBuilder::createBranchWeights(), llvm::expandDivisionUpTo32Bits(), llvm::expandRemainderUpTo32Bits(), llvm::InstCombiner::visitExtractElementInst(), and llvm::InstCombiner::visitShuffleVectorInst().

unsigned MaxOffset = TLI->getMaximalGlobalOffset()

Definition at line 151 of file GlobalMerge.cpp.

Referenced by llvm::AArch64RegisterInfo::eliminateFrameIndex(), llvm::X86FrameLowering::emitCalleeSavedFrameMoves(), and llvm::AArch64InstrInfo::estimateRSStackLimit().

INITIALIZE_PASS (GlobalMerge, "global-merge", "Global Merge", false, false) bool GlobalMerge const DataLayout* TD = TLI->getDataLayout()

Definition at line 146 of file GlobalMerge.cpp.

Referenced by AnalyzeLoadFromClobberingMemInst(), CanShareConstantPoolEntry(), llvm::InstCombiner::commonCastTransforms(), llvm::InstCombiner::commonPointerCastTransforms(), llvm::ComputeMaskedBits(), llvm::InstCombiner::ComputeMaskedBits(), llvm::ComputeNumSignBits(), llvm::InstCombiner::ComputeNumSignBits(), llvm::ComputeSignBit(), llvm::ConstantFoldCompareInstOperands(), ConstantFoldConstantExpressionImpl(), llvm::ConstantFoldInstOperands(), llvm::ConstantFoldInstruction(), llvm::SelectionDAG::CreateStackTemporary(), llvm::InstCombiner::DoOneIteration(), llvm::SystemZAsmPrinter::EmitEndOfAsmFile(), llvm::AArch64AsmPrinter::EmitEndOfAsmFile(), llvm::X86AsmPrinter::EmitEndOfAsmFile(), EvaluateExpression(), EvaluateGEPOffsetExpression(), llvm::SimplifyFortifiedLibCalls::fold(), llvm::InstCombiner::FoldCmpLoadFromIndexedGlobal(), llvm::InstCombiner::FoldGEPICmp(), FoldReinterpretLoadFromConstPtr(), GatherConstantCompares(), llvm::InstCombiner::getDataLayout(), llvm::ExecutionEngine::getDataLayout(), llvm::InlineCostAnalysis::getInlineCost(), llvm::getKnownAlignment(), GetLinearExpression(), GetLoadValueForLoad(), llvm::LazyValueInfo::getPredicateOnEdge(), llvm::NVPTXTargetLowering::getPrototype(), llvm::GetUnderlyingObject(), IsConstantOffsetFromGlobal(), llvm::isKnownNonZero(), llvm::XCoreTargetLowering::isLegalAddressingMode(), isOverwrite(), isSafePHIToSpeculate(), isSafeSelectToSpeculate(), llvm::isSafeToSpeculativelyExecute(), isSimpleEnoughValueToCommitHelper(), nvptx::LowerConstant(), llvm::AMDGPUTargetLowering::LowerGlobalAddress(), llvm::InstCombiner::MaskedValueIsZero(), llvm::InstCombiner::OptimizePointerDifference(), ReadDataFromGlobal(), llvm::NVPTXLowerAggrCopies::runOnFunction(), llvm::LazyValueInfo::runOnFunction(), llvm::InstCombiner::runOnFunction(), llvm::Inliner::runOnSCC(), llvm::InlineCostAnalysis::runOnSCC(), llvm::ExecutionEngine::setDataLayout(), llvm::SimplifyInstruction(), SimplifyWithOpReplaced(), SwitchToLookupTable(), llvm::InstCombiner::visitAdd(), llvm::InstCombiner::visitAnd(), llvm::InstCombiner::visitAShr(), llvm::InstCombiner::visitCallInst(), llvm::InstCombiner::visitFAdd(), llvm::InstCombiner::visitFCmpInst(), llvm::InstCombiner::visitFDiv(), llvm::InstCombiner::visitFMul(), llvm::InstCombiner::visitFRem(), llvm::InstCombiner::visitFSub(), llvm::InstCombiner::visitGetElementPtrInst(), llvm::InstCombiner::visitICmpInst(), llvm::InstCombiner::visitICmpInstWithCastAndCast(), llvm::InstCombiner::visitIntToPtr(), llvm::InstCombiner::visitLShr(), llvm::InstCombiner::visitMul(), llvm::InstCombiner::visitOr(), llvm::InstCombiner::visitPtrToInt(), llvm::InstCombiner::visitSDiv(), llvm::InstCombiner::visitSelectInst(), llvm::InstCombiner::visitSelectInstWithICmp(), llvm::InstCombiner::visitShl(), llvm::InstCombiner::visitSRem(), llvm::InstCombiner::visitSub(), llvm::InstCombiner::visitUDiv(), llvm::InstCombiner::visitURem(), and llvm::InstCombiner::visitXor().

return true

Definition at line 193 of file GlobalMerge.cpp.