AMDGPUPromoteAlloca.cpp File Reference

#include "AMDGPU.h"
#include "GCNSubtarget.h"
#include "llvm/Analysis/CaptureTracking.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/IntrinsicsAMDGPU.h"
#include "llvm/IR/IntrinsicsR600.h"
#include "llvm/Pass.h"
#include "llvm/Target/TargetMachine.h"
#include "Utils/AMDGPUBaseInfo.h"

Include dependency graph for AMDGPUPromoteAlloca.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "amdgpu-promote-alloca"

Functions
	INITIALIZE_PASS_BEGIN (AMDGPUPromoteAlloca, DEBUG_TYPE, "AMDGPU promote alloca to vector or LDS", false, false) INITIALIZE_PASS_END(AMDGPUPromoteAlloca
static FixedVectorType *	arrayTypeToVecType (ArrayType *ArrayTy)
static Value *	stripBitcasts (Value *V)
static Value *	calculateVectorIndex (Value *Ptr, const std::map< GetElementPtrInst *, Value * > &GEPIdx)
static Value *	GEPToVectorIndex (GetElementPtrInst *GEP)
static bool	canVectorizeInst (Instruction *Inst, User *User, const DataLayout &DL)
static bool	tryPromoteAllocaToVector (AllocaInst *Alloca, const DataLayout &DL, unsigned MaxVGPRs)
static bool	isCallPromotable (CallInst *CI)
bool	handlePromoteAllocaToVector (AllocaInst &I, unsigned MaxVGPRs)
bool	promoteAllocasToVector (Function &F, TargetMachine &TM)

Variables
	DEBUG_TYPE
AMDGPU promote alloca to vector or	LDS
AMDGPU promote alloca to vector or	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "amdgpu-promote-alloca"

Definition at line 26 of file AMDGPUPromoteAlloca.cpp.

Function Documentation

arrayTypeToVecType()

static FixedVectorType* arrayTypeToVecType ( ArrayType *  ArrayTy )

static

Definition at line 331 of file AMDGPUPromoteAlloca.cpp.

References llvm::FixedVectorType::get(), llvm::ArrayType::getElementType(), and llvm::ArrayType::getNumElements().

Referenced by tryPromoteAllocaToVector().

calculateVectorIndex()

static Value* calculateVectorIndex ( Value *  Ptr, const std::map< GetElementPtrInst *, Value * > &  GEPIdx  )

static

Definition at line 346 of file AMDGPUPromoteAlloca.cpp.

References GEP, I, and stripBitcasts().

Referenced by tryPromoteAllocaToVector().

canVectorizeInst()

static bool canVectorizeInst ( Instruction *  Inst, User *  User, const DataLayout &  DL  )

static

Definition at line 372 of file AMDGPUPromoteAlloca.cpp.

References llvm::Instruction::getOpcode(), llvm::LoadInst::getPointerOperand(), llvm::LoadInst::getPointerOperandType(), llvm::Value::getType(), llvm::LoadInst::isSimple(), llvm::SPII::Load, SI, and llvm::SPII::Store.

Referenced by tryPromoteAllocaToVector().

GEPToVectorIndex()

static Value* GEPToVectorIndex ( GetElementPtrInst *  GEP )

static

Definition at line 356 of file AMDGPUPromoteAlloca.cpp.

References GEP, and llvm::ConstantInt::isZero().

Referenced by tryPromoteAllocaToVector().

handlePromoteAllocaToVector()

bool handlePromoteAllocaToVector	(	AllocaInst &	I,
		unsigned	MaxVGPRs
	)

Definition at line 1091 of file AMDGPUPromoteAlloca.cpp.

References llvm::dbgs(), llvm::Module::getDataLayout(), I, LLVM_DEBUG, Mod, and tryPromoteAllocaToVector().

Referenced by promoteAllocasToVector().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	AMDGPUPromoteAlloca	,
		DEBUG_TYPE	,
		"AMDGPU promote alloca to vector or LDS"	,
		false	,
		false
	)

isCallPromotable()

static bool isCallPromotable ( CallInst *  CI )

static

Definition at line 563 of file AMDGPUPromoteAlloca.cpp.

References llvm::IntrinsicInst::getIntrinsicID(), and memcpy().

promoteAllocasToVector()

bool promoteAllocasToVector	(	Function &	F,
		TargetMachine &	TM
	)

Definition at line 1103 of file AMDGPUPromoteAlloca.cpp.

References llvm::Triple::amdgcn, F, llvm::AMDGPUSubtarget::get(), handlePromoteAllocaToVector(), I, llvm::AMDGPU::isEntryFunctionCC(), llvm::min(), llvm::ARM_MB::ST, and TM.

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

stripBitcasts()

static Value* stripBitcasts ( Value *  V )

static

Definition at line 336 of file AMDGPUPromoteAlloca.cpp.

References I.

Referenced by calculateVectorIndex().

tryPromoteAllocaToVector()

static bool tryPromoteAllocaToVector ( AllocaInst *  Alloca, const DataLayout &  DL, unsigned  MaxVGPRs  )

static

Definition at line 418 of file AMDGPUPromoteAlloca.cpp.

References llvm::SmallVectorImpl< T >::append(), arrayTypeToVecType(), Builder, calculateVectorIndex(), canVectorizeInst(), llvm::dbgs(), DL, llvm::Instruction::eraseFromParent(), GEP, GEPToVectorIndex(), llvm::AllocaInst::getAllocatedType(), llvm::Instruction::getOpcode(), llvm::User::getOperand(), llvm::Type::getPointerElementType(), llvm::Type::getPointerTo(), llvm::Value::getType(), Index, llvm::Type::isAggregateType(), llvm::isAssumeLikeIntrinsic(), llvm::VectorType::isValidElementType(), llvm::Type::isVectorTy(), LLVM_DEBUG, llvm_unreachable, llvm::SPII::Load, llvm::SmallVectorImpl< T >::pop_back_val(), llvm::AMDGPUAS::PRIVATE_ADDRESS, llvm::Value::replaceAllUsesWith(), SI, llvm::SPII::Store, Users, and llvm::Value::users().

Referenced by handlePromoteAllocaToVector().

Variable Documentation

DEBUG_TYPE

DEBUG_TYPE

Definition at line 135 of file AMDGPUPromoteAlloca.cpp.

false

AMDGPU promote alloca to vector or false

Definition at line 136 of file AMDGPUPromoteAlloca.cpp.

LDS

AMDGPU promote alloca to vector or LDS

Definition at line 136 of file AMDGPUPromoteAlloca.cpp.