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/*========================== begin_copyright_notice ============================
Copyright (C) 2018-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "llvmWrapper/IR/DerivedTypes.h"
#include "PacketBuilder.h"
#include "Probe/Assertion.h"
using namespace llvm;
namespace pktz
{
//////////////////////////////////////////////////////////////////////////
/// @brief Contructor for Builder.
/// @param pJitMgr - JitManager which contains modules, function passes, etc.
PacketBuilder::PacketBuilder(Module *pModule, uint32_t width)
{
mVWidth16 = 16;
mpModule = static_cast<IGCLLVM::Module*>(pModule);
// Built in types: scalar
LLVMContext& Ctx = getContext();
mpIRBuilder = new IGCLLVM::IRBuilder<>(Ctx);
mVoidTy = Type::getVoidTy(Ctx);
mFP16Ty = Type::getHalfTy(Ctx);
mFP32Ty = Type::getFloatTy(Ctx);
mFP32PtrTy = PointerType::get(mFP32Ty, 0);
mDoubleTy = Type::getDoubleTy(Ctx);
mInt1Ty = Type::getInt1Ty(Ctx);
mInt8Ty = Type::getInt8Ty(Ctx);
mInt16Ty = Type::getInt16Ty(Ctx);
mInt32Ty = Type::getInt32Ty(Ctx);
mInt8PtrTy = PointerType::get(mInt8Ty, 0);
mInt16PtrTy = PointerType::get(mInt16Ty, 0);
mInt32PtrTy = PointerType::get(mInt32Ty, 0);
mInt64Ty = Type::getInt64Ty(Ctx);
mSimd4FP64Ty = IGCLLVM::FixedVectorType::get(mDoubleTy, 4);
// Built in types: simd16
mSimd16Int1Ty = IGCLLVM::FixedVectorType::get(mInt1Ty, mVWidth16);
mSimd16Int16Ty = IGCLLVM::FixedVectorType::get(mInt16Ty, mVWidth16);
mSimd16Int32Ty = IGCLLVM::FixedVectorType::get(mInt32Ty, mVWidth16);
mSimd16Int64Ty = IGCLLVM::FixedVectorType::get(mInt64Ty, mVWidth16);
mSimd16FP16Ty = IGCLLVM::FixedVectorType::get(mFP16Ty, mVWidth16);
mSimd16FP32Ty = IGCLLVM::FixedVectorType::get(mFP32Ty, mVWidth16);
mSimd32Int8Ty = IGCLLVM::FixedVectorType::get(mInt8Ty, 32);
if (sizeof(uint32_t*) == 4)
{
mIntPtrTy = mInt32Ty;
mSimd16IntPtrTy = mSimd16Int32Ty;
}
else
{
IGC_ASSERT(sizeof(uint32_t*) == 8);
mIntPtrTy = mInt64Ty;
mSimd16IntPtrTy = mSimd16Int64Ty;
}
// Built in types: target simd
SetTargetWidth(width);
}
void PacketBuilder::SetTargetWidth(uint32_t width)
{
mVWidth = width;
mSimdInt1Ty = IGCLLVM::FixedVectorType::get(mInt1Ty, mVWidth);
mSimdInt16Ty = IGCLLVM::FixedVectorType::get(mInt16Ty, mVWidth);
mSimdInt32Ty = IGCLLVM::FixedVectorType::get(mInt32Ty, mVWidth);
mSimdInt64Ty = IGCLLVM::FixedVectorType::get(mInt64Ty, mVWidth);
mSimdFP16Ty = IGCLLVM::FixedVectorType::get(mFP16Ty, mVWidth);
mSimdFP32Ty = IGCLLVM::FixedVectorType::get(mFP32Ty, mVWidth);
if (sizeof(uint32_t*) == 4)
{
mSimdIntPtrTy = mSimdInt32Ty;
}
else
{
IGC_ASSERT(sizeof(uint32_t*) == 8);
mSimdIntPtrTy = mSimdInt64Ty;
}
}
/// @brief Mark this alloca as temporary to avoid hoisting later on
void PacketBuilder::SetTempAlloca(Value* inst)
{
AllocaInst* pAlloca = dyn_cast<AllocaInst>(inst);
IGC_ASSERT_MESSAGE(pAlloca, "Unexpected non-alloca instruction");
MDNode* N = MDNode::get(getContext(), MDString::get(getContext(), "is_temp_alloca"));
pAlloca->setMetadata("is_temp_alloca", N);
}
bool PacketBuilder::IsTempAlloca(Value* inst)
{
AllocaInst* pAlloca = dyn_cast<AllocaInst>(inst);
IGC_ASSERT_MESSAGE(pAlloca, "Unexpected non-alloca instruction");
return (pAlloca->getMetadata("is_temp_alloca") != nullptr);
}
// Returns true if able to find a call instruction to mark
bool PacketBuilder::SetNamedMetaDataOnCallInstr(Instruction* inst, StringRef mdName)
{
CallInst* pCallInstr = dyn_cast<CallInst>(inst);
if (pCallInstr)
{
MDNode* N = MDNode::get(getContext(), MDString::get(getContext(), mdName));
pCallInstr->setMetadata(mdName, N);
return true;
}
else
{
// Follow use def chain back up
for (Use& u : inst->operands())
{
Instruction* srcInst = dyn_cast<Instruction>(u.get());
if (srcInst)
{
if (SetNamedMetaDataOnCallInstr(srcInst, mdName))
{
return true;
}
}
}
}
return false;
}
bool PacketBuilder::HasNamedMetaDataOnCallInstr(Instruction* inst, StringRef mdName)
{
CallInst* pCallInstr = dyn_cast<CallInst>(inst);
if (!pCallInstr)
{
return false;
}
return (pCallInstr->getMetadata(mdName) != nullptr);
}
//////////////////////////////////////////////////////////////////////////
/// @brief Packetizes the type. Assumes SOA conversion.
Type* PacketBuilder::GetVectorType(Type* pType)
{
if (pType->isVoidTy())
return pType;
if (auto VecpType = dyn_cast<IGCLLVM::FixedVectorType>(pType)) {
uint32_t vectorSize = VecpType->getNumElements();
Type *pElemType = VecpType->getElementType();
Type *pVecType =
IGCLLVM::FixedVectorType::get(pElemType, vectorSize * mVWidth);
return pVecType;
}
// [N x float] should packetize to [N x <8 x float>]
if (pType->isArrayTy())
{
uint32_t arraySize = pType->getArrayNumElements();
Type* pArrayType = pType->getArrayElementType();
Type* pVecArrayType = GetVectorType(pArrayType);
Type* pVecType = ArrayType::get(pVecArrayType, arraySize);
return pVecType;
}
// {float,int} should packetize to {<8 x float>, <8 x int>}
if (pType->isAggregateType())
{
uint32_t numElems = pType->getStructNumElements();
SmallVector<Type*, 8> vecTypes;
for (uint32_t i = 0; i < numElems; ++i)
{
Type* pElemType = pType->getStructElementType(i);
Type* pVecElemType = GetVectorType(pElemType);
vecTypes.push_back(pVecElemType);
}
Type* pVecType = StructType::get(getContext(), vecTypes);
return pVecType;
}
// <ty> should packetize to <8 x <ty>>
Type *vecType = IGCLLVM::FixedVectorType::get(pType, mVWidth);
return vecType;
}
} // end of namespace pktz
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