PreISelIntrinsicLowering.cpp File Reference

#include "llvm/CodeGen/PreISelIntrinsicLowering.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Analysis/ObjCARCInstKind.h"
#include "llvm/Analysis/ObjCARCUtil.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/ExpandVectorPredication.h"
#include "llvm/CodeGen/LibcallLoweringInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/ProfDataUtils.h"
#include "llvm/IR/RuntimeLibcalls.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/Use.h"
#include "llvm/InitializePasses.h"
#include "llvm/Pass.h"
#include "llvm/Support/Casting.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/Scalar/LowerConstantIntrinsics.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/BuildLibCalls.h"
#include "llvm/Transforms/Utils/LowerMemIntrinsics.h"
#include "llvm/Transforms/Utils/LowerVectorIntrinsics.h"
#include "llvm/IR/VPIntrinsics.def"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "pre-isel-intrinsic-lowering"
#define	BEGIN_REGISTER_VP_INTRINSIC(VPID, MASKPOS, VLENPOS)

Functions
template<class T>
static bool	forEachCall (Function &Intrin, T Callback)
static bool	lowerLoadRelative (Function &F)
static CallInst::TailCallKind	getOverridingTailCallKind (const Function &F)
static bool	lowerObjCCall (Function &F, RTLIB::LibcallImpl NewFn, bool setNonLazyBind=false)
static bool	canEmitLibcall (const LibcallLoweringModuleAnalysisResult &ModuleLowering, const TargetMachine *TM, Function *F, RTLIB::Libcall LC)
static bool	canEmitMemcpy (const LibcallLoweringModuleAnalysisResult &ModuleLowering, const TargetMachine *TM, Function *F)
static Constant *	getMemSetPattern16Value (MemSetPatternInst *Inst, const TargetLibraryInfo &TLI)
static bool	expandProtectedFieldPtr (Function &Intr)
static bool	expandCondLoop (Function &Intr)
static bool	expandLoopTrap (Function &Intr)
	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

Macro Definition Documentation

BEGIN_REGISTER_VP_INTRINSIC

#define BEGIN_REGISTER_VP_INTRINSIC	(		VPID,
			MASKPOS,
			VLENPOS )

Value:

  case Intrinsic::VPID:

DEBUG_TYPE

#define DEBUG_TYPE   "pre-isel-intrinsic-lowering"

Definition at line 48 of file PreISelIntrinsicLowering.cpp.

Function Documentation

canEmitLibcall()

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

static

Definition at line 245 of file PreISelIntrinsicLowering.cpp.

References F, llvm::LibcallLoweringModuleAnalysisResult::getLibcallLowering(), llvm::TargetMachine::getSubtargetImpl(), and Lowering.

canEmitMemcpy()

bool canEmitMemcpy ( const LibcallLoweringModuleAnalysisResult & ModuleLowering, const TargetMachine * TM, Function * F )

static

Definition at line 256 of file PreISelIntrinsicLowering.cpp.

References F, llvm::LibcallLoweringModuleAnalysisResult::getLibcallLowering(), llvm::TargetMachine::getSubtargetImpl(), and Lowering.

expandCondLoop()

bool expandCondLoop ( Function & Intr )

static

Definition at line 623 of file PreISelIntrinsicLowering.cpp.

References Call, llvm::cast(), DEBUG_TYPE, llvm::getExplicitlyUnknownBranchWeightsIfProfiled(), llvm::make_early_inc_range(), llvm::SplitBlockAndInsertIfThen(), and llvm::Value::users().

expandLoopTrap()

bool expandLoopTrap ( Function & Intr )

static

Definition at line 637 of file PreISelIntrinsicLowering.cpp.

References B(), Call, llvm::cast(), Cond, llvm::dyn_cast(), llvm::ConstantInt::getFalse(), llvm::ConstantInt::getTrue(), I, llvm::make_early_inc_range(), llvm::predecessors(), and llvm::Value::users().

expandProtectedFieldPtr()

bool expandProtectedFieldPtr ( Function & Intr )

static

Definition at line 485 of file PreISelIntrinsicLowering.cpp.

References B(), Call, llvm::cast(), llvm::StringRef::contains(), llvm::GlobalAlias::create(), llvm::dyn_cast(), llvm::SmallPtrSetImplBase::empty(), llvm::GlobalValue::ExternalLinkage, F, llvm::FunctionType::get(), llvm::PointerType::get(), llvm::Type::getInt64Ty(), llvm::Type::getInt8Ty(), llvm::ConstantExpr::getIntToPtr(), llvm::User::getOperand(), llvm::Intrinsic::getOrInsertDeclaration(), llvm::GlobalValue::getParent(), llvm::Attribute::getValueAsString(), llvm::GlobalValue::HiddenVisibility, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::isa(), llvm::Attribute::isValid(), llvm::make_early_inc_range(), llvm::LLVMContext::OB_deactivation_symbol, llvm::reportFatalUsageError(), llvm::User::setOperand(), and llvm::Value::users().

forEachCall()

template<class T>

bool forEachCall ( Function & Intrin, T Callback )

static

Definition at line 91 of file PreISelIntrinsicLowering.cpp.

References Changed, llvm::dyn_cast(), T, llvm::Value::use_begin(), and llvm::Value::use_empty().

getMemSetPattern16Value()

Constant * getMemSetPattern16Value ( MemSetPatternInst * Inst, const TargetLibraryInfo & TLI )

static

Definition at line 269 of file PreISelIntrinsicLowering.cpp.

References llvm::CallingConv::C, DL, llvm::dyn_cast(), llvm::ArrayType::get(), llvm::ConstantArray::get(), llvm::Instruction::getDataLayout(), llvm::Instruction::getModule(), llvm::Type::getPointerAddressSpace(), llvm::MemIntrinsicBase< Derived >::getRawDest(), llvm::Value::getType(), llvm::MemSetBase< BaseCL >::getValue(), llvm::isa(), llvm::isLibFuncEmittable(), llvm::isPowerOf2_64(), and Size.

getOverridingTailCallKind()

CallInst::TailCallKind getOverridingTailCallKind ( const Function & F )

static

Definition at line 141 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	)

References INITIALIZE_PASS_DEPENDENCY, and INITIALIZE_PASS_END.

lowerLoadRelative()

bool lowerLoadRelative ( Function & F )

static

Definition at line 112 of file PreISelIntrinsicLowering.cpp.

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

lowerObjCCall()

bool lowerObjCCall ( Function & F, RTLIB::LibcallImpl NewFn, bool setNonLazyBind = false )

static

Definition at line 150 of file PreISelIntrinsicLowering.cpp.

References llvm::CallBase::addParamAttr(), assert(), llvm::cast(), llvm::dyn_cast(), F, llvm::objcarc::getAttachedARCFunction(), llvm::FunctionCallee::getCallee(), llvm::RTLIB::RuntimeLibcallsInfo::getLibcallImplName(), 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 884 of file PreISelIntrinsicLowering.cpp.

Lowering

pre isel intrinsic Pre ISel Intrinsic Lowering

Definition at line 884 of file PreISelIntrinsicLowering.cpp.

Referenced by canEmitLibcall(), canEmitMemcpy(), EnsureStackAlignment(), and llvm::PreISelIntrinsicLoweringPass::run().

lowering

pre isel intrinsic lowering

Definition at line 883 of file PreISelIntrinsicLowering.cpp.

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.