PreISelIntrinsicLowering.cpp File Reference

#include "llvm/CodeGen/PreISelIntrinsicLowering.h"
#include "llvm/Analysis/ObjCARCInstKind.h"
#include "llvm/Analysis/ObjCARCUtil.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/Casting.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/Utils/LowerMemIntrinsics.h"

Go to the source code of this file.

Functions
static bool	lowerLoadRelative (Function &F)
static CallInst::TailCallKind	getOverridingTailCallKind (const Function &F)
static bool	lowerObjCCall (Function &F, const char *NewFn, bool setNonLazyBind=false)
static bool	canEmitLibcall (const TargetMachine &TM, Function *F, RTLIB::Libcall LC)
	INITIALIZE_PASS_BEGIN (PreISelIntrinsicLoweringLegacyPass, "pre-isel-intrinsic-lowering", "Pre-ISel Intrinsic Lowering", false, false) INITIALIZE_PASS_END(PreISelIntrinsicLoweringLegacyPass

Variables
static cl::opt< int64_t >	MemIntrinsicExpandSizeThresholdOpt ("mem-intrinsic-expand-size", cl::desc("Set minimum mem intrinsic size to expand in IR"), cl::init(-1), cl::Hidden)
	Threshold to leave statically sized memory intrinsic calls.
pre isel intrinsic	lowering
pre isel intrinsic Pre ISel Intrinsic	Lowering
pre isel intrinsic Pre ISel Intrinsic	false

Function Documentation

canEmitLibcall()

static bool canEmitLibcall ( const TargetMachine &  TM, Function *  F, RTLIB::Libcall  LC  )

static

Definition at line 199 of file PreISelIntrinsicLowering.cpp.

References llvm::TargetLoweringBase::getLibcallName(), and TM.

getOverridingTailCallKind()

static CallInst::TailCallKind getOverridingTailCallKind ( const Function &  F )

static

Definition at line 98 of file PreISelIntrinsicLowering.cpp.

References F, llvm::objcarc::GetFunctionClass(), llvm::objcarc::IsAlwaysTail(), llvm::objcarc::IsNeverTail(), llvm::CallInst::TCK_None, llvm::CallInst::TCK_NoTail, and llvm::CallInst::TCK_Tail.

Referenced by lowerObjCCall().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	PreISelIntrinsicLoweringLegacyPass	,
		"pre-isel-intrinsic-lowering"	,
		"Pre-ISel Intrinsic Lowering"	,
		false	,
		false
	)

lowerLoadRelative()

static bool lowerLoadRelative ( Function &  F )

static

Definition at line 69 of file PreISelIntrinsicLowering.cpp.

References B, F, llvm::Type::getInt32Ty(), Int32Ty, and llvm::make_early_inc_range().

lowerObjCCall()

static bool lowerObjCCall ( Function &  F, const char *  NewFn, bool  setNonLazyBind = false  )

static

Definition at line 107 of file PreISelIntrinsicLowering.cpp.

References llvm::CallBase::addParamAttr(), assert(), llvm::IRBuilderBase::CreateCall(), F, llvm::AttributeList::FirstArgIndex, llvm::objcarc::getAttachedARCFunctionKind(), llvm::FunctionCallee::getCallee(), getOverridingTailCallKind(), llvm::make_early_inc_range(), llvm::IntrinsicInst::mayLowerToFunctionCall(), llvm::Value::setName(), setNonLazyBind(), and llvm::CallInst::setTailCallKind().

Variable Documentation

false

pre isel intrinsic Pre ISel Intrinsic false

Definition at line 403 of file PreISelIntrinsicLowering.cpp.

lowering

pre isel intrinsic lowering

Definition at line 402 of file PreISelIntrinsicLowering.cpp.

Lowering

pre isel intrinsic Pre ISel Intrinsic Lowering

Definition at line 403 of file PreISelIntrinsicLowering.cpp.

Referenced by EnsureStackAlignment(), AMDGPUDAGToDAGISel::PostprocessISelDAG(), llvm::PreISelIntrinsicLoweringPass::run(), and AMDGPUDAGToDAGISel::Select().

MemIntrinsicExpandSizeThresholdOpt

cl::opt< int64_t > MemIntrinsicExpandSizeThresholdOpt("mem-intrinsic-expand-size", cl::desc("Set minimum mem intrinsic size to expand in IR"), cl::init(-1), cl::Hidden) ( "mem-intrinsic-expand-size"  , cl::desc("Set minimum mem intrinsic size to expand in IR")  , cl::init(-1)  , cl::Hidden    )

static

Threshold to leave statically sized memory intrinsic calls.

Calls of known size larger than this will be expanded by the pass. Calls of unknown or lower size will be left for expansion in codegen.