InstCombineCalls.cpp File Reference

#include "InstCombine.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/MemoryBuiltins.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/PatternMatch.h"
#include "llvm/Transforms/Utils/BuildLibCalls.h"
#include "llvm/Transforms/Utils/Local.h"

Include dependency graph for InstCombineCalls.cpp:

Go to the source code of this file.

Defines
#define	DEBUG_TYPE   "instcombine"
Functions
	STATISTIC (NumSimplified,"Number of library calls simplified")
static Type *	getPromotedType (Type *Ty)
static Type *	reduceToSingleValueType (Type *T)
static bool	isSafeToEliminateVarargsCast (const CallSite CS, const CastInst *const CI, const DataLayout *const DL, const int ix)
static IntrinsicInst *	FindInitTrampolineFromAlloca (Value *TrampMem)
static IntrinsicInst *	FindInitTrampolineFromBB (IntrinsicInst *AdjustTramp, Value *TrampMem)
static IntrinsicInst *	FindInitTrampoline (Value *Callee)

---

Define Documentation

#define DEBUG_TYPE   "instcombine"

Definition at line 25 of file InstCombineCalls.cpp.

---

Function Documentation

static IntrinsicInst* FindInitTrampoline

(

Value *

Callee

)

[static]

Definition at line 1132 of file InstCombineCalls.cpp.

References llvm::dyn_cast(), FindInitTrampolineFromAlloca(), FindInitTrampolineFromBB(), llvm::IntrinsicInst::getIntrinsicID(), llvm::User::getOperand(), IT(), and llvm::Value::stripPointerCasts().

static IntrinsicInst* FindInitTrampolineFromAlloca

(

Value *

TrampMem

)

[static]

Definition at line 1072 of file InstCombineCalls.cpp.

References llvm::dyn_cast(), llvm::IntrinsicInst::getIntrinsicID(), llvm::User::getOperand(), llvm::Value::hasOneUse(), llvm::Value::stripPointerCasts(), llvm::Value::user_back(), and llvm::Value::users().

Referenced by FindInitTrampoline().

static IntrinsicInst* FindInitTrampolineFromBB	(	IntrinsicInst *	AdjustTramp,
		Value *	TrampMem
	)		[static]

Definition at line 1111 of file InstCombineCalls.cpp.

References llvm::BasicBlock::begin(), llvm::IntrinsicInst::getIntrinsicID(), llvm::User::getOperand(), llvm::Instruction::getParent(), I, and llvm::Instruction::mayWriteToMemory().

Referenced by FindInitTrampoline().

static Type* getPromotedType

(

Type *

Ty

)

[static]

getPromotedType - Return the specified type promoted as it would be to pass though a va_arg area.

Definition at line 31 of file InstCombineCalls.cpp.

References llvm::Type::getContext(), and llvm::Type::getInt32Ty().

static bool isSafeToEliminateVarargsCast	(	const CallSite	CS,
		const CastInst *const	CI,
		const DataLayout *const	DL,
		const int	ix
	)		[static]

isSafeToEliminateVarargsCast - If this cast does not affect the value passed through the varargs area, we can eliminate the use of the cast.

Definition at line 1034 of file InstCombineCalls.cpp.

References llvm::User::getOperand(), llvm::Value::getType(), llvm::DataLayout::getTypeAllocSize(), llvm::CallSiteBase< FunTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::isByValOrInAllocaArgument(), llvm::CastInst::isLosslessCast(), and llvm::Type::isSized().

static Type* reduceToSingleValueType

(

Type *

T

)

[static]

reduceToSingleValueType - Given an aggregate type which ultimately holds a single scalar element, like {{{type}}} or [1 x type], return type.

Definition at line 41 of file InstCombineCalls.cpp.

References llvm::Type::isSingleValueType(), and T.

STATISTIC	(	NumSimplified	,
		"Number of library calls simplified"
	)