SimplifyLibCalls.cpp File Reference

#include "llvm/Transforms/Utils/SimplifyLibCalls.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Transforms/Utils/BuildLibCalls.h"

Include dependency graph for SimplifyLibCalls.cpp:

Go to the source code of this file.

Functions
static bool	ignoreCallingConv (LibFunc::Func Func)
static bool	isOnlyUsedInZeroEqualityComparison (Value *V)
static bool	isOnlyUsedInEqualityComparison (Value *V, Value *With)
static bool	callHasFloatingPointArgument (const CallInst *CI)
static bool	hasUnaryFloatFn (const TargetLibraryInfo *TLI, Type *Ty, LibFunc::Func DoubleFn, LibFunc::Func FloatFn, LibFunc::Func LongDoubleFn)
	Check whether the overloaded unary floating point function corresponing to Ty is available.
static bool	isFortifiedCallFoldable (CallInst *CI, unsigned SizeCIOp, unsigned SizeArgOp, bool isString)
static bool	isTrigLibCall (CallInst *CI)
static void	insertSinCosCall (IRBuilder<> &B, Function *OrigCallee, Value *Arg, bool UseFloat, Value *&Sin, Value *&Cos, Value *&SinCos)
static bool	isReportingError (Function *Callee, CallInst *CI, int StreamArg)
Variables
static cl::opt< bool >	ColdErrorCalls ("error-reporting-is-cold", cl::init(true), cl::Hidden, cl::desc("Treat error-reporting calls as cold"))

---

Function Documentation

static bool callHasFloatingPointArgument

(

const CallInst *

CI

)

[static]

Definition at line 86 of file SimplifyLibCalls.cpp.

References llvm::User::op_begin(), and llvm::User::op_end().

static bool hasUnaryFloatFn	(	const TargetLibraryInfo *	TLI,
		Type *	Ty,
		LibFunc::Func	DoubleFn,
		LibFunc::Func	FloatFn,
		LibFunc::Func	LongDoubleFn
	)		[static]

Check whether the overloaded unary floating point function corresponing to Ty is available.

Definition at line 97 of file SimplifyLibCalls.cpp.

References llvm::Type::DoubleTyID, llvm::Type::FloatTyID, llvm::Type::getTypeID(), and llvm::TargetLibraryInfo::has().

static bool ignoreCallingConv

(

LibFunc::Func

Func

)

[static]

Definition at line 45 of file SimplifyLibCalls.cpp.

References llvm::LibFunc::abs, llvm::LibFunc::labs, llvm::LibFunc::llabs, llvm_unreachable, and llvm::LibFunc::strlen.

Referenced by llvm::LibCallSimplifier::optimizeCall().

void insertSinCosCall	(	IRBuilder<> &	B,
		Function *	OrigCallee,
		Value *	Arg,
		bool	UseFloat,
		Value *&	Sin,
		Value *&	Cos,
		Value *&	SinCos
	)		[static]

Definition at line 1330 of file SimplifyLibCalls.cpp.

References llvm::BasicBlock::begin(), llvm::IRBuilder< preserveNames, T, Inserter >::CreateCall(), llvm::IRBuilder< preserveNames, T, Inserter >::CreateExtractElement(), llvm::IRBuilder< preserveNames, T, Inserter >::CreateExtractValue(), llvm::ConstantInt::get(), llvm::StructType::get(), llvm::VectorType::get(), llvm::Function::getAttributes(), llvm::Function::getEntryBlock(), llvm::IRBuilderBase::GetInsertBlock(), llvm::IRBuilderBase::getInt32Ty(), llvm::Module::getOrInsertFunction(), llvm::BasicBlock::getParent(), llvm::GlobalValue::getParent(), llvm::Module::getTargetTriple(), llvm::Value::getType(), llvm::Type::isStructTy(), Name, llvm::IRBuilderBase::SetInsertPoint(), T, llvm::Triple::x86, and llvm::Triple::x86_64.

static bool isFortifiedCallFoldable	(	CallInst *	CI,
		unsigned	SizeCIOp,
		unsigned	SizeArgOp,
		bool	isString
	)		[static]

Definition at line 114 of file SimplifyLibCalls.cpp.

References llvm::CallInst::getArgOperand(), and llvm::GetStringLength().

static bool isOnlyUsedInEqualityComparison	(	Value *	V,
		Value *	With
	)		[static]

isOnlyUsedInEqualityComparison - Return true if it is only used in equality comparisons with With.

Definition at line 75 of file SimplifyLibCalls.cpp.

References llvm::Value::users().

static bool isOnlyUsedInZeroEqualityComparison

(

Value *

V

)

[static]

isOnlyUsedInZeroEqualityComparison - Return true if it only matters that the value is equal or not-equal to zero.

Definition at line 60 of file SimplifyLibCalls.cpp.

References llvm::CallingConv::C, and llvm::Value::users().

static bool isReportingError	(	Function *	Callee,
		CallInst *	CI,
		int	StreamArg
	)		[static]

Definition at line 1499 of file SimplifyLibCalls.cpp.

References ColdErrorCalls, llvm::dyn_cast(), llvm::CallInst::getArgOperand(), llvm::Value::getName(), llvm::CallInst::getNumArgOperands(), llvm::LoadInst::getPointerOperand(), llvm::GlobalValue::isDeclaration(), and LI.

static bool isTrigLibCall

(

CallInst *

CI

)

[static]

Definition at line 1273 of file SimplifyLibCalls.cpp.

References llvm::CallInst::getCalledFunction(), llvm::Function::getFunctionType(), llvm::FunctionType::getNumParams(), llvm::FunctionType::getParamType(), llvm::FunctionType::getReturnType(), llvm::CallInst::hasFnAttr(), llvm::Type::isDoubleTy(), llvm::Type::isFloatTy(), llvm::Attribute::NoUnwind, and llvm::Attribute::ReadNone.

---

Variable Documentation

cl::opt<bool> ColdErrorCalls("error-reporting-is-cold", cl::init(true), cl::Hidden, cl::desc("Treat error-reporting calls as cold")) [static]

Referenced by isReportingError().