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/*========================== begin_copyright_notice ============================
Copyright (C) 2017-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include <vector>
namespace llvm
{
class FunctionPass;
class AllocaInst;
class Instruction;
class Value;
class GetElementPtrInst;
class StoreInst;
class IntrinsicInst;
class Type;
}
namespace IGC
{
enum StatusPrivArr2Reg
{
OK,
IsDynamicAlloca,
CannotUseSOALayout,
IsNotNativeType,
OutOfAllocSizeLimit,
OutOfMaxGRFPressure
};
/// Tries to promote array in private memory to indexable vector
/// Uses register pressure to make sure it won't cause spilling
llvm::FunctionPass* createPromotePrivateArrayToReg();
/// Array can be stored in SOA form
/// Helper allowing function to detect if an array can stored in SOA form
/// It is true
bool CanUseSOALayout(llvm::AllocaInst* inst, llvm::Type*& baseType);
class TransposeHelper
{
public:
TransposeHelper(bool vectorIndex) : m_vectorIndex(vectorIndex) {}
void HandleAllocaSources(
llvm::Instruction* v,
llvm::Value* idx);
void handleGEPInst(
llvm::GetElementPtrInst* pGEP,
llvm::Value* idx);
virtual void handleLoadInst(
llvm::LoadInst* pLoad,
llvm::Value* pScalarizedIdx) = 0;
virtual void handleStoreInst(
llvm::StoreInst* pStore,
llvm::Value* pScalarizedIdx) = 0;
virtual void handleLifetimeMark(llvm::IntrinsicInst* inst) = 0;
void EraseDeadCode();
protected:
std::vector<llvm::Instruction*> m_toBeRemovedGEP;
private:
bool m_vectorIndex;
};
}
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