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/*========================== begin_copyright_notice ============================
Copyright (C) 2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#include "vc/Utils/GenX/ImplicitArgsBuffer.h"
#include "vc/Utils/GenX/IRBuilder.h"
#include "vc/Utils/GenX/PredefinedVariable.h"
#include "vc/Utils/General/Types.h"
#include "Probe/Assertion.h"
#include "llvmWrapper/IR/Module.h"
#include <llvm/GenXIntrinsics/GenXIntrinsics.h>
#include <llvm/IR/DerivedTypes.h>
#include <llvm/IR/LLVMContext.h>
#include <llvm/IR/Module.h>
#include <algorithm>
#include <array>
using namespace llvm;
StructType &vc::ImplicitArgs::Buffer::getType(Module &M) {
using namespace vc::ImplicitArgs::Buffer;
auto *MaybeResult = IGCLLVM::getTypeByName(M, TypeName);
if (MaybeResult)
return *MaybeResult;
// Have to construct the type.
auto &C = M.getContext();
auto *Int8Ty = IntegerType::getInt8Ty(C);
auto *Int32Ty = IntegerType::getInt32Ty(C);
auto *Int64Ty = IntegerType::getInt64Ty(C);
std::array<Type *, Indices::Size> ElementTys = {nullptr};
ElementTys[Indices::StructSize] = Int8Ty;
ElementTys[Indices::StructVersion] = Int8Ty;
ElementTys[Indices::NumWorkDim] = Int8Ty;
ElementTys[Indices::SIMDWidth] = Int8Ty;
ElementTys[Indices::LocalSizeX] = Int32Ty;
ElementTys[Indices::LocalSizeY] = Int32Ty;
ElementTys[Indices::LocalSizeZ] = Int32Ty;
ElementTys[Indices::GlobalSizeX] = Int64Ty;
ElementTys[Indices::GlobalSizeY] = Int64Ty;
ElementTys[Indices::GlobalSizeZ] = Int64Ty;
ElementTys[Indices::PrintfBufferPtr] = Int64Ty;
ElementTys[Indices::GlobalOffsetX] = Int64Ty;
ElementTys[Indices::GlobalOffsetY] = Int64Ty;
ElementTys[Indices::GlobalOffsetZ] = Int64Ty;
ElementTys[Indices::LocalIDTablePtr] = Int64Ty;
ElementTys[Indices::GroupCountX] = Int32Ty;
ElementTys[Indices::GroupCountY] = Int32Ty;
ElementTys[Indices::GroupCountZ] = Int32Ty;
IGC_ASSERT_MESSAGE(std::all_of(ElementTys.begin(), ElementTys.end(),
[](Type *Ty) -> bool { return Ty; }),
"all structure element types must be set by the function");
return *StructType::create(C, ElementTys, TypeName);
}
vc::AddrSpace::Enum
vc::ImplicitArgs::Buffer::getPtrAddrSpace(vc::ThreadPayloadKind Kind) {
// For targets with the payload in memory A32 addressing is used.
if (Kind == vc::ThreadPayloadKind::InMemory)
return vc::AddrSpace::GlobalA32;
// Otherwise A64/A32 addressing is used.
return vc::AddrSpace::Global;
}
PointerType &vc::ImplicitArgs::Buffer::getPtrType(Module &M,
vc::ThreadPayloadKind Kind) {
return *PointerType::get(&vc::ImplicitArgs::Buffer::getType(M),
vc::ImplicitArgs::Buffer::getPtrAddrSpace(Kind));
}
template <>
Value &vc::ImplicitArgs::Buffer::getPointer<vc::ThreadPayloadKind::InMemory>(
IRBuilder<> &IRB) {
auto *R0Decl = GenXIntrinsic::getGenXDeclaration(
IRB.GetInsertBlock()->getModule(), GenXIntrinsic::genx_r0,
IRB.getInt32Ty());
auto *R0 = IRB.CreateCall(R0Decl, None, "r0.0");
auto *IntPtr = IRB.CreateAnd(
R0, IRB.getInt32(maskTrailingZeros<uint32_t>(vc::PtrOffsetInR00)),
"indir.data.heap.ptr.int");
auto *PtrTy = &vc::ImplicitArgs::Buffer::getPtrType(
*IRB.GetInsertBlock()->getModule(), vc::ThreadPayloadKind::InMemory);
auto *Ptr = IRB.CreateIntToPtr(IntPtr, PtrTy, "indir.data.heap.ptr");
return *Ptr;
}
template <>
Value &vc::ImplicitArgs::Buffer::getPointer<vc::ThreadPayloadKind::OnRegister>(
IRBuilder<> &IRB) {
GlobalVariable *IAVar = IRB.GetInsertPoint()->getModule()->getNamedGlobal(
vc::PredefVar::ImplicitArgsBufferName);
IGC_ASSERT_MESSAGE(IAVar, "Implicit args buffer predefined variable must "
"have already been created");
auto *IntPtr = vc::createReadVariableRegion(*IAVar, IRB);
auto *PtrTy = &vc::ImplicitArgs::Buffer::getPtrType(
*IRB.GetInsertBlock()->getModule(), vc::ThreadPayloadKind::OnRegister);
auto *Ptr = IRB.CreateIntToPtr(IntPtr, PtrTy, "indir.data.heap.ptr");
return *Ptr;
}
Value &vc::ImplicitArgs::Buffer::getPointer(llvm::IRBuilder<> &IRB,
ThreadPayloadKind Kind) {
if (Kind == vc::ThreadPayloadKind::InMemory)
return vc::ImplicitArgs::Buffer::getPointer<
vc::ThreadPayloadKind::InMemory>(IRB);
IGC_ASSERT_MESSAGE(Kind == vc::ThreadPayloadKind::OnRegister,
"an unexpected thread payload kind");
return vc::ImplicitArgs::Buffer::getPointer<
vc::ThreadPayloadKind::OnRegister>(IRB);
}
Value &vc::ImplicitArgs::Buffer::loadField(Value &BufferPtr,
Indices::Enum FieldIdx,
IRBuilder<> &IRB,
const Twine &Name) {
IGC_ASSERT_MESSAGE(
BufferPtr.getType() == &vc::ImplicitArgs::Buffer::getPtrType(
*IRB.GetInsertBlock()->getModule(),
vc::ThreadPayloadKind::InMemory) ||
BufferPtr.getType() == &vc::ImplicitArgs::Buffer::getPtrType(
*IRB.GetInsertBlock()->getModule(),
vc::ThreadPayloadKind::OnRegister),
"wrong argument: a wrong type for buffer pointer value");
auto *FieldPtr = IRB.CreateInBoundsGEP(
BufferPtr.getType()->getPointerElementType(), &BufferPtr,
{IRB.getInt32(0), IRB.getInt32(FieldIdx)}, Name + ".ptr");
auto *FieldVal = IRB.CreateLoad(FieldPtr->getType()->getPointerElementType(),
FieldPtr, Name);
return *FieldVal;
}
StructType &vc::ImplicitArgs::LocalID::getType(Module &M) {
auto *MaybeResult = IGCLLVM::getTypeByName(M, TypeName);
if (MaybeResult)
return *MaybeResult;
auto &C = M.getContext();
auto *Int16Ty = IntegerType::getInt16Ty(C);
return *StructType::create(C, {Int16Ty, Int16Ty, Int16Ty},
vc::ImplicitArgs::LocalID::TypeName);
}
PointerType &vc::ImplicitArgs::LocalID::getPtrType(Module &M) {
return *PointerType::get(&vc::ImplicitArgs::LocalID::getType(M),
vc::AddrSpace::Global);
}
Value &vc::ImplicitArgs::LocalID::getBasePtr(Value &BufferPtr, IRBuilder<> &IRB,
const Twine &Name) {
auto &IntPtr = vc::ImplicitArgs::Buffer::loadField(
BufferPtr, vc::ImplicitArgs::Buffer::Indices::LocalIDTablePtr, IRB,
Name + ".int");
return *IRB.CreateIntToPtr(&IntPtr,
&vc::ImplicitArgs::LocalID::getPtrType(
*IRB.GetInsertBlock()->getModule()),
Name);
}
template <>
Value &vc::ImplicitArgs::LocalID::getPointer<vc::ThreadPayloadKind::InMemory>(
Value &BufferPtr, IRBuilder<> &IRB, const Twine &Name) {
auto &BasePtr =
vc::ImplicitArgs::LocalID::getBasePtr(BufferPtr, IRB, Name + ".base");
Value *Index = vc::getGroupThreadIDForPIM(IRB);
return *IRB.CreateGEP(BasePtr.getType()->getPointerElementType(), &BasePtr,
Index, Name);
}
template <>
Value &vc::ImplicitArgs::LocalID::getPointer<vc::ThreadPayloadKind::OnRegister>(
Value &BufferPtr, IRBuilder<> &IRB, const Twine &Name) {
GlobalVariable *IAVar = IRB.GetInsertPoint()->getModule()->getNamedGlobal(
vc::PredefVar::LocalIDBufferName);
IGC_ASSERT_MESSAGE(IAVar, "Local ID buffer predefined variable must "
"have already been created");
auto *IntPtr = vc::createReadVariableRegion(*IAVar, IRB, Name + ".intptr");
return *IRB.CreateIntToPtr(IntPtr,
&vc::ImplicitArgs::LocalID::getPtrType(
*IRB.GetInsertPoint()->getModule()),
Name);
}
Value &vc::ImplicitArgs::LocalID::getPointer(Value &BufferPtr,
llvm::IRBuilder<> &IRB,
ThreadPayloadKind Kind,
const Twine &Name) {
if (Kind == vc::ThreadPayloadKind::InMemory)
return vc::ImplicitArgs::LocalID::getPointer<
vc::ThreadPayloadKind::InMemory>(BufferPtr, IRB, Name);
IGC_ASSERT_MESSAGE(Kind == vc::ThreadPayloadKind::OnRegister,
"an unexpected thread payload kind");
return vc::ImplicitArgs::LocalID::getPointer<
vc::ThreadPayloadKind::OnRegister>(BufferPtr, IRB, Name);
}
Value &vc::ImplicitArgs::LocalID::loadField(
Value &LIDStructPtr, vc::ImplicitArgs::LocalID::Indices::Enum FieldIdx,
IRBuilder<> &IRB, const Twine &Name) {
auto *Ptr = IRB.CreateInBoundsGEP(
LIDStructPtr.getType()->getPointerElementType(), &LIDStructPtr,
{IRB.getInt32(0), IRB.getInt32(FieldIdx)}, Name + ".ptr");
return *IRB.CreateLoad(Ptr->getType()->getPointerElementType(), Ptr, Name);
}
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