LowerConstantIntrinsics.cpp File Reference

#include "llvm/Transforms/Scalar/LowerConstantIntrinsics.h"
#include "llvm/ADT/PostOrderIterator.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/DomTreeUpdater.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Analysis/MemoryBuiltins.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/PatternMatch.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/Debug.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/Local.h"
#include <optional>

Include dependency graph for LowerConstantIntrinsics.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "lower-is-constant-intrinsic"

Functions
	STATISTIC (IsConstantIntrinsicsHandled, "Number of 'is.constant' intrinsic calls handled")
	STATISTIC (ObjectSizeIntrinsicsHandled, "Number of 'objectsize' intrinsic calls handled")
static Value *	lowerIsConstantIntrinsic (IntrinsicInst *II)
static bool	replaceConditionalBranchesOnConstant (Instruction *II, Value *NewValue, DomTreeUpdater *DTU)
static bool	lowerConstantIntrinsics (Function &F, const TargetLibraryInfo &TLI, DominatorTree *DT)
	INITIALIZE_PASS_BEGIN (LowerConstantIntrinsics, "lower-constant-intrinsics", "Lower constant intrinsics", false, false) INITIALIZE_PASS_END(LowerConstantIntrinsics

Variables
lower constant	intrinsics
lower constant Lower constant	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "lower-is-constant-intrinsic"

Definition at line 40 of file LowerConstantIntrinsics.cpp.

Function Documentation

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	LowerConstantIntrinsics	,
		"lower-constant-intrinsics"	,
		"Lower constant intrinsics"	,
		false	,
		false
	)

lowerConstantIntrinsics()

static bool lowerConstantIntrinsics ( Function &  F, const TargetLibraryInfo &  TLI, DominatorTree *  DT  )

static

Definition at line 99 of file LowerConstantIntrinsics.cpp.

References llvm::dbgs(), DL, llvm::SmallVectorBase< Size_T >::empty(), F, llvm::IntrinsicInst::getIntrinsicID(), I, LLVM_DEBUG, lowerIsConstantIntrinsic(), llvm::lowerObjectSizeCall(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::removeUnreachableBlocks(), and replaceConditionalBranchesOnConstant().

Referenced by llvm::LowerConstantIntrinsicsPass::run().

lowerIsConstantIntrinsic()

static Value * lowerIsConstantIntrinsic ( IntrinsicInst *  II )

static

Definition at line 47 of file LowerConstantIntrinsics.cpp.

References llvm::CallingConv::C, llvm::ConstantInt::getFalse(), llvm::User::getOperand(), llvm::ConstantInt::getTrue(), and llvm::Value::getType().

Referenced by lowerConstantIntrinsics().

replaceConditionalBranchesOnConstant()

static bool replaceConditionalBranchesOnConstant ( Instruction *  II, Value *  NewValue, DomTreeUpdater *  DTU  )

static

Definition at line 54 of file LowerConstantIntrinsics.cpp.

References llvm::DomTreeUpdater::applyUpdates(), llvm::SetVector< T, Vector, Set >::begin(), llvm::BranchInst::Create(), llvm::SetVector< T, Vector, Set >::end(), llvm::Instruction::eraseFromParent(), llvm::User::getOperand(), llvm::Instruction::getParent(), llvm::BranchInst::getSuccessor(), llvm::BranchInst::isUnconditional(), llvm::PatternMatch::m_One(), llvm::PatternMatch::m_Zero(), llvm::PatternMatch::match(), Other, llvm::pred_empty(), and llvm::replaceAndRecursivelySimplify().

Referenced by lowerConstantIntrinsics().

STATISTIC() [1/2]

STATISTIC	(	IsConstantIntrinsicsHandled	,
		"Number of 'is.constant' intrinsic calls handled"
	)

STATISTIC() [2/2]

STATISTIC	(	ObjectSizeIntrinsicsHandled	,
		"Number of 'objectsize' intrinsic calls handled"
	)

Variable Documentation

false

lower constant Lower constant false

Definition at line 205 of file LowerConstantIntrinsics.cpp.

intrinsics

lower constant Lower constant intrinsics

Definition at line 204 of file LowerConstantIntrinsics.cpp.