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SPIRVWriter.cpp
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//===- SPIRVWriter.cpp - Converts LLVM to SPIR-V ----------------*- C++ -*-===//
//
// The LLVM/SPIR-V Translator
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
// Copyright (c) 2014 Advanced Micro Devices, Inc. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal with the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimers.
// Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimers in the documentation
// and/or other materials provided with the distribution.
// Neither the names of Advanced Micro Devices, Inc., nor the names of its
// contributors may be used to endorse or promote products derived from this
// Software without specific prior written permission.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH
// THE SOFTWARE.
//
//===----------------------------------------------------------------------===//
/// \file
///
/// This file implements conversion of LLVM intermediate language to SPIR-V
/// binary.
///
//===----------------------------------------------------------------------===//
#include "SPIRVWriter.h"
#include "LLVMToSPIRVDbgTran.h"
#include "SPIRVAsm.h"
#include "SPIRVBasicBlock.h"
#include "SPIRVEntry.h"
#include "SPIRVEnum.h"
#include "SPIRVExtInst.h"
#include "SPIRVFunction.h"
#include "SPIRVInstruction.h"
#include "SPIRVInternal.h"
#include "SPIRVLLVMUtil.h"
#include "SPIRVMDWalker.h"
#include "SPIRVMemAliasingINTEL.h"
#include "SPIRVModule.h"
#include "SPIRVType.h"
#include "SPIRVUtil.h"
#include "SPIRVValue.h"
#include "VectorComputeUtil.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
#include "llvm/Pass.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Transforms/Utils.h" // loop-simplify pass
#include <cstdlib>
#include <functional>
#include <iostream>
#include <memory>
#include <queue>
#include <regex>
#include <set>
#include <vector>
#define DEBUG_TYPE "spirv"
using namespace llvm;
using namespace SPIRV;
using namespace OCLUtil;
namespace SPIRV {
static void foreachKernelArgMD(
MDNode *MD, SPIRVFunction *BF,
std::function<void(const std::string &Str, SPIRVFunctionParameter *BA)>
Func) {
for (unsigned I = 0, E = MD->getNumOperands(); I != E; ++I) {
SPIRVFunctionParameter *BA = BF->getArgument(I);
Func(getMDOperandAsString(MD, I), BA);
}
}
static void foreachKernelArgMD(
MDNode *MD, SPIRVFunction *BF,
std::function<void(Metadata *MDOp, SPIRVFunctionParameter *BA)> Func) {
for (unsigned I = 0, E = MD->getNumOperands(); I != E; ++I) {
SPIRVFunctionParameter *BA = BF->getArgument(I);
Func(MD->getOperand(I), BA);
}
}
static SPIRVMemoryModelKind getMemoryModel(Module &M) {
auto *MemoryModelMD = M.getNamedMetadata(kSPIRVMD::MemoryModel);
if (MemoryModelMD && (MemoryModelMD->getNumOperands() > 0)) {
auto *Ref0 = MemoryModelMD->getOperand(0);
if (Ref0 && Ref0->getNumOperands() > 1) {
auto &&ModelOp = Ref0->getOperand(1);
auto *ModelCI = mdconst::dyn_extract<ConstantInt>(ModelOp);
if (ModelCI && (ModelCI->getValue().getActiveBits() <= 64)) {
auto Model = static_cast<SPIRVMemoryModelKind>(ModelCI->getZExtValue());
return Model;
}
}
}
return SPIRVMemoryModelKind::MemoryModelMax;
}
static void translateSEVDecoration(Attribute Sev, SPIRVValue *Val) {
assert(Sev.isStringAttribute() &&
Sev.getKindAsString() == kVCMetadata::VCSingleElementVector);
auto *Ty = Val->getType();
assert((Ty->isTypeBool() || Ty->isTypeFloat() || Ty->isTypeInt() ||
Ty->isTypePointer()) &&
"This decoration is valid only for Scalar or Pointer types");
if (Ty->isTypePointer()) {
SPIRVWord IndirectLevelsOnElement = 0;
Sev.getValueAsString().getAsInteger(0, IndirectLevelsOnElement);
Val->addDecorate(DecorationSingleElementVectorINTEL,
IndirectLevelsOnElement);
} else
Val->addDecorate(DecorationSingleElementVectorINTEL);
}
LLVMToSPIRVBase::LLVMToSPIRVBase(SPIRVModule *SMod)
: M(nullptr), Ctx(nullptr), BM(SMod), SrcLang(0), SrcLangVer(0) {
DbgTran = std::make_unique<LLVMToSPIRVDbgTran>(nullptr, SMod, this);
}
LLVMToSPIRVBase::~LLVMToSPIRVBase() {
for (auto *I : UnboundInst)
I->deleteValue();
}
bool LLVMToSPIRVBase::runLLVMToSPIRV(Module &Mod) {
M = &Mod;
CG = std::make_unique<CallGraph>(Mod);
Ctx = &M->getContext();
DbgTran->setModule(M);
assert(BM && "SPIR-V module not initialized");
translate();
return true;
}
SPIRVValue *LLVMToSPIRVBase::getTranslatedValue(const Value *V) const {
auto Loc = ValueMap.find(V);
if (Loc != ValueMap.end())
return Loc->second;
return nullptr;
}
bool LLVMToSPIRVBase::isKernel(Function *F) {
if (F->getCallingConv() == CallingConv::SPIR_KERNEL)
return true;
return false;
}
bool LLVMToSPIRVBase::isBuiltinTransToInst(Function *F) {
StringRef DemangledName;
if (!oclIsBuiltin(F->getName(), DemangledName) &&
!isDecoratedSPIRVFunc(F, DemangledName))
return false;
SPIRVDBG(spvdbgs() << "CallInst: demangled name: " << DemangledName.str()
<< '\n');
return getSPIRVFuncOC(DemangledName) != OpNop;
}
bool LLVMToSPIRVBase::isBuiltinTransToExtInst(
Function *F, SPIRVExtInstSetKind *ExtSet, SPIRVWord *ExtOp,
SmallVectorImpl<std::string> *Dec) {
StringRef DemangledName;
if (!oclIsBuiltin(F->getName(), DemangledName))
return false;
LLVM_DEBUG(dbgs() << "[oclIsBuiltinTransToExtInst] CallInst: demangled name: "
<< DemangledName << '\n');
StringRef S = DemangledName;
if (!S.startswith(kSPIRVName::Prefix))
return false;
S = S.drop_front(strlen(kSPIRVName::Prefix));
auto Loc = S.find(kSPIRVPostfix::Divider);
auto ExtSetName = S.substr(0, Loc);
SPIRVExtInstSetKind Set = SPIRVEIS_Count;
if (!SPIRVExtSetShortNameMap::rfind(ExtSetName.str(), &Set))
return false;
assert((Set == SPIRVEIS_OpenCL || Set == BM->getDebugInfoEIS()) &&
"Unsupported extended instruction set");
auto ExtOpName = S.substr(Loc + 1);
auto Splited = ExtOpName.split(kSPIRVPostfix::ExtDivider);
OCLExtOpKind EOC;
if (!OCLExtOpMap::rfind(Splited.first.str(), &EOC))
return false;
if (ExtSet)
*ExtSet = Set;
if (ExtOp)
*ExtOp = EOC;
if (Dec) {
SmallVector<StringRef, 2> P;
Splited.second.split(P, kSPIRVPostfix::Divider);
for (auto &I : P)
Dec->push_back(I.str());
}
return true;
}
bool isUniformGroupOperation(Function *F) {
auto Name = F->getName();
if (Name.contains("GroupIMulKHR") || Name.contains("GroupFMulKHR") ||
Name.contains("GroupBitwiseAndKHR") ||
Name.contains("GroupBitwiseOrKHR") ||
Name.contains("GroupBitwiseXorKHR") ||
Name.contains("GroupLogicalAndKHR") ||
Name.contains("GroupLogicalOrKHR") || Name.contains("GroupLogicalXorKHR"))
return true;
return false;
}
static bool recursiveType(const StructType *ST, const Type *Ty) {
SmallPtrSet<const StructType *, 4> Seen;
std::function<bool(const Type *Ty)> Run = [&](const Type *Ty) {
if (auto *StructTy = dyn_cast<StructType>(Ty)) {
if (StructTy == ST)
return true;
if (Seen.count(StructTy))
return false;
Seen.insert(StructTy);
return find_if(StructTy->element_begin(), StructTy->element_end(), Run) !=
StructTy->element_end();
}
if (auto *PtrTy = dyn_cast<PointerType>(Ty)) {
Type *ElTy = PtrTy->getPointerElementType();
if (auto *FTy = dyn_cast<FunctionType>(ElTy)) {
// If we have a function pointer, then argument types and return type of
// the referenced function also need to be checked
return Run(FTy->getReturnType()) ||
any_of(FTy->param_begin(), FTy->param_end(), Run);
}
return Run(ElTy);
}
if (auto *ArrayTy = dyn_cast<ArrayType>(Ty))
return Run(ArrayTy->getArrayElementType());
return false;
};
return Run(Ty);
}
SPIRVType *LLVMToSPIRVBase::transType(Type *T) {
LLVMToSPIRVTypeMap::iterator Loc = TypeMap.find(T);
if (Loc != TypeMap.end())
return Loc->second;
SPIRVDBG(dbgs() << "[transType] " << *T << '\n');
if (T->isVoidTy())
return mapType(T, BM->addVoidType());
if (T->isIntegerTy(1))
return mapType(T, BM->addBoolType());
if (T->isIntegerTy()) {
unsigned BitWidth = T->getIntegerBitWidth();
// SPIR-V 2.16.1. Universal Validation Rules: Scalar integer types can be
// parameterized only as 32 bit, plus any additional sizes enabled by
// capabilities.
if (BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_arbitrary_precision_integers) ||
BM->getErrorLog().checkError(
BitWidth == 8 || BitWidth == 16 || BitWidth == 32 || BitWidth == 64,
SPIRVEC_InvalidBitWidth, std::to_string(BitWidth))) {
return mapType(T, BM->addIntegerType(T->getIntegerBitWidth()));
}
}
if (T->isFloatingPointTy())
return mapType(T, BM->addFloatType(T->getPrimitiveSizeInBits()));
if (T->isTokenTy()) {
BM->getErrorLog().checkError(
BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_token_type),
SPIRVEC_RequiresExtension,
"SPV_INTEL_token_type\n"
"NOTE: LLVM module contains token type, which doesn't have analogs in "
"SPIR-V without extensions");
return mapType(T, BM->addTokenTypeINTEL());
}
// A pointer to image or pipe type in LLVM is translated to a SPIRV
// (non-pointer) image or pipe type.
if (T->isPointerTy()) {
auto ET = T->getPointerElementType();
if (ET->isFunctionTy() &&
!BM->checkExtension(ExtensionID::SPV_INTEL_function_pointers,
SPIRVEC_FunctionPointers, toString(T)))
return nullptr;
auto ST = dyn_cast<StructType>(ET);
auto AddrSpc = T->getPointerAddressSpace();
// Lower global_device and global_host address spaces that were added in
// SYCL as part of SYCL_INTEL_usm_address_spaces extension to just global
// address space if device doesn't support SPV_INTEL_usm_storage_classes
// extension
if (!BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_usm_storage_classes) &&
((AddrSpc == SPIRAS_GlobalDevice) || (AddrSpc == SPIRAS_GlobalHost))) {
auto *NewType = PointerType::getWithSamePointeeType(cast<PointerType>(T),
SPIRAS_Global);
return mapType(T, transType(NewType));
}
if (ST && !ST->isSized()) {
Op OpCode;
StringRef STName = ST->getName();
// Workaround for non-conformant SPIR binary
if (STName == "struct._event_t") {
STName = kSPR2TypeName::Event;
ST->setName(STName);
}
if (STName.startswith(kSPR2TypeName::PipeRO) ||
STName.startswith(kSPR2TypeName::PipeWO)) {
auto PipeT = BM->addPipeType();
PipeT->setPipeAcessQualifier(STName.startswith(kSPR2TypeName::PipeRO)
? AccessQualifierReadOnly
: AccessQualifierWriteOnly);
return mapType(T, PipeT);
}
if (STName.startswith(kSPR2TypeName::ImagePrefix)) {
assert(AddrSpc == SPIRAS_Global);
auto SPIRVImageTy = getSPIRVImageTypeFromOCL(M, T);
return mapType(T, transType(SPIRVImageTy));
}
if (STName == kSPR2TypeName::Sampler)
return mapType(T, transType(getSamplerType(M)));
if (STName.startswith(kSPIRVTypeName::PrefixAndDelim))
return transSPIRVOpaqueType(T);
if (STName.startswith(kOCLSubgroupsAVCIntel::TypePrefix))
return mapType(
T, BM->addSubgroupAvcINTELType(
OCLSubgroupINTELTypeOpCodeMap::map(ST->getName().str())));
if (OCLOpaqueTypeOpCodeMap::find(STName.str(), &OpCode)) {
switch (OpCode) {
default:
return mapType(T, BM->addOpaqueGenericType(OpCode));
case OpTypeDeviceEvent:
return mapType(T, BM->addDeviceEventType());
case OpTypeQueue:
return mapType(T, BM->addQueueType());
}
}
if (BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_vector_compute)) {
if (STName.startswith(kVCType::VCBufferSurface)) {
// VCBufferSurface always have Access Qualifier
auto Access = getAccessQualifier(STName);
return mapType(T, BM->addBufferSurfaceINTELType(Access));
}
}
if (isPointerToOpaqueStructType(T)) {
return mapType(
T, BM->addPointerType(SPIRSPIRVAddrSpaceMap::map(
static_cast<SPIRAddressSpace>(AddrSpc)),
transType(ET)));
}
} else {
// JointMatrixINTEL type is not necessarily an opaque type, it can be
// represented as a structure with pointer to a multidimensional array
// member.
if (ST && ST->hasName()) {
StringRef STName = ST->getName();
if (STName.startswith(kSPIRVTypeName::PrefixAndDelim)) {
SmallVector<std::string, 8> Postfixes;
auto TN = decodeSPIRVTypeName(STName, Postfixes);
if (TN == kSPIRVTypeName::JointMatrixINTEL) {
return transSPIRVJointMatrixINTELType(T, Postfixes);
}
}
}
SPIRVType *ElementType = transType(ET);
// ET, as a recursive type, may contain exactly the same pointer T, so it
// may happen that after translation of ET we already have translated T,
// added the translated pointer to the SPIR-V module and mapped T to this
// pointer. Now we have to check TypeMap again.
LLVMToSPIRVTypeMap::iterator Loc = TypeMap.find(T);
if (Loc != TypeMap.end()) {
return Loc->second;
}
return mapType(
T, BM->addPointerType(SPIRSPIRVAddrSpaceMap::map(
static_cast<SPIRAddressSpace>(AddrSpc)),
ElementType));
}
}
if (auto *VecTy = dyn_cast<FixedVectorType>(T))
return mapType(T, BM->addVectorType(transType(VecTy->getElementType()),
VecTy->getNumElements()));
if (T->isArrayTy()) {
// SPIR-V 1.3 s3.32.6: Length is the number of elements in the array.
// It must be at least 1.
if (T->getArrayNumElements() < 1) {
std::string Str;
llvm::raw_string_ostream OS(Str);
OS << *T;
SPIRVCK(T->getArrayNumElements() >= 1, InvalidArraySize, OS.str());
}
return mapType(T, BM->addArrayType(
transType(T->getArrayElementType()),
static_cast<SPIRVConstant *>(transValue(
ConstantInt::get(getSizetType(),
T->getArrayNumElements(), false),
nullptr))));
}
if (T->isStructTy() && !T->isSized()) {
auto ST = dyn_cast<StructType>(T);
(void)ST; // Silence warning
assert(!ST->getName().startswith(kSPR2TypeName::PipeRO));
assert(!ST->getName().startswith(kSPR2TypeName::PipeWO));
assert(!ST->getName().startswith(kSPR2TypeName::ImagePrefix));
return mapType(T, BM->addOpaqueType(T->getStructName().str()));
}
if (auto ST = dyn_cast<StructType>(T)) {
assert(ST->isSized());
StringRef Name;
if (ST->hasName())
Name = ST->getName();
if (Name == getSPIRVTypeName(kSPIRVTypeName::ConstantSampler))
return transType(getSamplerType(M));
if (Name == getSPIRVTypeName(kSPIRVTypeName::ConstantPipeStorage))
return transType(getPipeStorageType(M));
constexpr size_t MaxNumElements = MaxWordCount - SPIRVTypeStruct::FixedWC;
const size_t NumElements = ST->getNumElements();
size_t SPIRVStructNumElements = NumElements;
// In case number of elements is greater than maximum WordCount and
// SPV_INTEL_long_constant_composite is not enabled, the error will be
// emitted by validate functionality of SPIRVTypeStruct class.
if (NumElements > MaxNumElements &&
BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_long_constant_composite)) {
SPIRVStructNumElements = MaxNumElements;
}
auto *Struct = BM->openStructType(SPIRVStructNumElements, Name.str());
mapType(T, Struct);
if (NumElements > MaxNumElements &&
BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_long_constant_composite)) {
uint64_t NumOfContinuedInstructions = NumElements / MaxNumElements - 1;
for (uint64_t J = 0; J < NumOfContinuedInstructions; J++) {
auto *Continued = BM->addTypeStructContinuedINTEL(MaxNumElements);
Struct->addContinuedInstruction(
static_cast<SPIRVTypeStruct::ContinuedInstType>(Continued));
}
uint64_t Remains = NumElements % MaxNumElements;
if (Remains) {
auto *Continued = BM->addTypeStructContinuedINTEL(Remains);
Struct->addContinuedInstruction(
static_cast<SPIRVTypeStruct::ContinuedInstType>(Continued));
}
}
SmallVector<unsigned, 4> ForwardRefs;
for (unsigned I = 0, E = T->getStructNumElements(); I != E; ++I) {
auto *ElemTy = ST->getElementType(I);
if ((isa<StructType>(ElemTy) || isa<ArrayType>(ElemTy) ||
isa<VectorType>(ElemTy) || isa<PointerType>(ElemTy)) &&
recursiveType(ST, ElemTy))
ForwardRefs.push_back(I);
else
Struct->setMemberType(I, transType(ST->getElementType(I)));
}
BM->closeStructType(Struct, ST->isPacked());
for (auto I : ForwardRefs)
Struct->setMemberType(I, transType(ST->getElementType(I)));
return Struct;
}
if (FunctionType *FT = dyn_cast<FunctionType>(T)) {
SPIRVType *RT = transType(FT->getReturnType());
std::vector<SPIRVType *> PT;
for (FunctionType::param_iterator I = FT->param_begin(),
E = FT->param_end();
I != E; ++I)
PT.push_back(transType(*I));
return mapType(T, BM->addFunctionType(RT, PT));
}
llvm_unreachable("Not implemented!");
return 0;
}
// Representation in LLVM IR before the translator is a pointer array wrapped
// in a structure:
// %struct.__spirv_JointMatrixINTEL = type { [R x [C x [L x [S x type]]]]* }
// where R = Rows, C = Columnts, L = Layout + 1, S = Scope + 1
// this '+1' for the Layout and Scope is required because both of them can
// be '0', but array size can not be '0'.
// The result should look like SPIR-V friendly LLVM IR:
// %spirv.JointMatrixINTEL._char_2_2_0_3
// Here we check the structure name yet again. Another option would be to
// check SPIR-V friendly function calls (by their name) and obtain return
// or their parameter types, assuming, that the appropriate types are Matrix
// structure type. But in the near future, we will reuse Composite
// instructions to do, for example, matrix initialization directly on AMX
// register by OpCompositeConstruct. And we can't claim, that the Result type
// of OpCompositeConstruct instruction is always the joint matrix type, it's
// simply not true.
SPIRVType *LLVMToSPIRVBase::transSPIRVJointMatrixINTELType(
Type *T, SmallVector<std::string, 8> Postfixes) {
Type *ElemTy = nullptr;
StringRef Ty{Postfixes[0]};
auto NumBits = llvm::StringSwitch<unsigned>(Ty)
.Case("char", 8)
.Case("short", 16)
.Case("int", 32)
.Case("long", 64)
.Default(0);
if (NumBits)
ElemTy = IntegerType::get(M->getContext(), NumBits);
else if (Ty == "half")
ElemTy = Type::getHalfTy(M->getContext());
else if (Ty == "float")
ElemTy = Type::getFloatTy(M->getContext());
else if (Ty == "double")
ElemTy = Type::getDoubleTy(M->getContext());
else if (Ty == "bfloat16")
ElemTy = Type::getInt16Ty(M->getContext());
else
llvm_unreachable("Unexpected type for matrix!");
auto ParseInteger = [this](StringRef Postfix) -> ConstantInt * {
unsigned long long N = 0;
consumeUnsignedInteger(Postfix, 10, N);
return getUInt32(M, N);
};
std::vector<SPIRVValue *> Args;
for (size_t I = 1; I != Postfixes.size(); ++I)
Args.emplace_back(transConstant(ParseInteger(Postfixes[I])));
return mapType(T, BM->addJointMatrixINTELType(transType(ElemTy), Args));
}
SPIRVType *LLVMToSPIRVBase::transSPIRVOpaqueType(Type *T) {
auto ET = T->getPointerElementType();
auto ST = cast<StructType>(ET);
auto STName = ST->getStructName();
assert(STName.startswith(kSPIRVTypeName::PrefixAndDelim) &&
"Invalid SPIR-V opaque type name");
SmallVector<std::string, 8> Postfixes;
auto TN = decodeSPIRVTypeName(STName, Postfixes);
if (TN == kSPIRVTypeName::Pipe) {
assert(T->getPointerAddressSpace() == SPIRAS_Global);
assert(Postfixes.size() == 1 && "Invalid pipe type ops");
auto PipeT = BM->addPipeType();
PipeT->setPipeAcessQualifier(
static_cast<spv::AccessQualifier>(atoi(Postfixes[0].c_str())));
return mapType(T, PipeT);
} else if (TN == kSPIRVTypeName::Image) {
assert(T->getPointerAddressSpace() == SPIRAS_Global);
// The sampled type needs to be translated through LLVM type to guarantee
// uniqueness.
auto SampledT = transType(
getLLVMTypeForSPIRVImageSampledTypePostfix(Postfixes[0], *Ctx));
SmallVector<int, 7> Ops;
for (unsigned I = 1; I < 8; ++I)
Ops.push_back(atoi(Postfixes[I].c_str()));
SPIRVTypeImageDescriptor Desc(static_cast<SPIRVImageDimKind>(Ops[0]),
Ops[1], Ops[2], Ops[3], Ops[4], Ops[5]);
return mapType(T,
BM->addImageType(SampledT, Desc,
static_cast<spv::AccessQualifier>(Ops[6])));
} else if (TN == kSPIRVTypeName::SampledImg) {
return mapType(
T, BM->addSampledImageType(static_cast<SPIRVTypeImage *>(
transType(getSPIRVTypeByChangeBaseTypeName(
M, T, kSPIRVTypeName::SampledImg, kSPIRVTypeName::Image)))));
} else if (TN == kSPIRVTypeName::VmeImageINTEL) {
// This type is the same as SampledImageType, but consumed by Subgroup AVC
// Intel extension instructions.
return mapType(
T,
BM->addVmeImageINTELType(static_cast<SPIRVTypeImage *>(
transType(getSPIRVTypeByChangeBaseTypeName(
M, T, kSPIRVTypeName::VmeImageINTEL, kSPIRVTypeName::Image)))));
} else if (TN == kSPIRVTypeName::Sampler)
return mapType(T, BM->addSamplerType());
else if (TN == kSPIRVTypeName::DeviceEvent)
return mapType(T, BM->addDeviceEventType());
else if (TN == kSPIRVTypeName::Queue)
return mapType(T, BM->addQueueType());
else if (TN == kSPIRVTypeName::PipeStorage)
return mapType(T, BM->addPipeStorageType());
else if (TN == kSPIRVTypeName::JointMatrixINTEL) {
return transSPIRVJointMatrixINTELType(T, Postfixes);
} else
return mapType(T,
BM->addOpaqueGenericType(SPIRVOpaqueTypeOpCodeMap::map(TN)));
}
SPIRVFunction *LLVMToSPIRVBase::transFunctionDecl(Function *F) {
if (auto BF = getTranslatedValue(F))
return static_cast<SPIRVFunction *>(BF);
if (F->isIntrinsic() && (!BM->isSPIRVAllowUnknownIntrinsicsEnabled() ||
isKnownIntrinsic(F->getIntrinsicID()))) {
// We should not translate LLVM intrinsics as a function
assert(none_of(F->users(),
[this](User *U) { return getTranslatedValue(U); }) &&
"LLVM intrinsics shouldn't be called in SPIRV");
return nullptr;
}
SPIRVTypeFunction *BFT = static_cast<SPIRVTypeFunction *>(
transType(OCLTypeToSPIRVPtr->getAdaptedType(F)));
SPIRVFunction *BF =
static_cast<SPIRVFunction *>(mapValue(F, BM->addFunction(BFT)));
BF->setFunctionControlMask(transFunctionControlMask(F));
if (F->hasName()) {
if (isKernel(F)) {
/* strip the prefix as the runtime will be looking for this name */
std::string Prefix = kSPIRVName::EntrypointPrefix;
std::string Name = F->getName().str();
BM->setName(BF, Name.substr(Prefix.size()));
} else {
if (isUniformGroupOperation(F))
BM->getErrorLog().checkError(
BM->isAllowedToUseExtension(
ExtensionID::SPV_KHR_uniform_group_instructions),
SPIRVEC_RequiresExtension, "SPV_KHR_uniform_group_instructions\n");
BM->setName(BF, F->getName().str());
}
}
if (!isKernel(F) && F->getLinkage() != GlobalValue::InternalLinkage)
BF->setLinkageType(transLinkageType(F));
// Translate OpenCL/SYCL buffer_location metadata if it's attached to the
// translated function declaration
MDNode *BufferLocation = nullptr;
if (BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_fpga_buffer_location))
BufferLocation = F->getMetadata("kernel_arg_buffer_location");
// Translate runtime_aligned metadata if it's attached to the translated
// function declaration
MDNode *RuntimeAligned = nullptr;
if (BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_runtime_aligned))
RuntimeAligned = F->getMetadata("kernel_arg_runtime_aligned");
auto Attrs = F->getAttributes();
for (Function::arg_iterator I = F->arg_begin(), E = F->arg_end(); I != E;
++I) {
auto ArgNo = I->getArgNo();
SPIRVFunctionParameter *BA = BF->getArgument(ArgNo);
if (I->hasName())
BM->setName(BA, I->getName().str());
if (I->hasByValAttr())
BA->addAttr(FunctionParameterAttributeByVal);
if (I->hasNoAliasAttr())
BA->addAttr(FunctionParameterAttributeNoAlias);
if (I->hasNoCaptureAttr())
BA->addAttr(FunctionParameterAttributeNoCapture);
if (I->hasStructRetAttr())
BA->addAttr(FunctionParameterAttributeSret);
if (I->onlyReadsMemory())
BA->addAttr(FunctionParameterAttributeNoWrite);
if (Attrs.hasParamAttr(ArgNo, Attribute::ZExt))
BA->addAttr(FunctionParameterAttributeZext);
if (Attrs.hasParamAttr(ArgNo, Attribute::SExt))
BA->addAttr(FunctionParameterAttributeSext);
if (Attrs.hasParamAttr(ArgNo, Attribute::Alignment)) {
SPIRVWord AlignmentBytes = Attrs.getParamAttr(ArgNo, Attribute::Alignment)
.getAlignment()
.valueOrOne()
.value();
BA->setAlignment(AlignmentBytes);
}
if (BM->isAllowedToUseVersion(VersionNumber::SPIRV_1_1) &&
Attrs.hasParamAttr(ArgNo, Attribute::Dereferenceable))
BA->addDecorate(DecorationMaxByteOffset,
Attrs.getParamAttr(ArgNo, Attribute::Dereferenceable)
.getDereferenceableBytes());
if (BufferLocation && I->getType()->isPointerTy()) {
// Order of integer numbers in MD node follows the order of function
// parameters on which we shall attach the appropriate decoration. Add
// decoration only if MD value is not negative.
int LocID = -1;
if (!isa<MDString>(BufferLocation->getOperand(ArgNo)) &&
!isa<MDNode>(BufferLocation->getOperand(ArgNo)))
LocID = getMDOperandAsInt(BufferLocation, ArgNo);
if (LocID >= 0)
BA->addDecorate(DecorationBufferLocationINTEL, LocID);
}
if (RuntimeAligned && I->getType()->isPointerTy()) {
// Order of integer numbers in MD node follows the order of function
// parameters on which we shall attach the appropriate decoration. Add
// decoration only if MD value is 1.
int LocID = 0;
if (!isa<MDString>(RuntimeAligned->getOperand(ArgNo)) &&
!isa<MDNode>(RuntimeAligned->getOperand(ArgNo)))
LocID = getMDOperandAsInt(RuntimeAligned, ArgNo);
if (LocID == 1)
BA->addDecorate(internal::DecorationRuntimeAlignedINTEL, LocID);
}
}
if (Attrs.hasRetAttr(Attribute::ZExt))
BF->addDecorate(DecorationFuncParamAttr, FunctionParameterAttributeZext);
if (Attrs.hasRetAttr(Attribute::SExt))
BF->addDecorate(DecorationFuncParamAttr, FunctionParameterAttributeSext);
if (Attrs.hasFnAttr("referenced-indirectly")) {
assert(!isKernel(F) &&
"kernel function was marked as referenced-indirectly");
BF->addDecorate(DecorationReferencedIndirectlyINTEL);
}
if (Attrs.hasFnAttr(kVCMetadata::VCCallable) &&
BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_fast_composite)) {
BF->addDecorate(internal::DecorationCallableFunctionINTEL);
}
if (BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_vector_compute))
transVectorComputeMetadata(F);
transFPGAFunctionMetadata(BF, F);
SPIRVDBG(dbgs() << "[transFunction] " << *F << " => ";
spvdbgs() << *BF << '\n';)
return BF;
}
void LLVMToSPIRVBase::transVectorComputeMetadata(Function *F) {
using namespace VectorComputeUtil;
if (!BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_vector_compute))
return;
auto BF = static_cast<SPIRVFunction *>(getTranslatedValue(F));
assert(BF && "The SPIRVFunction pointer shouldn't be nullptr");
auto Attrs = F->getAttributes();
if (Attrs.hasFnAttr(kVCMetadata::VCStackCall))
BF->addDecorate(DecorationStackCallINTEL);
if (Attrs.hasFnAttr(kVCMetadata::VCFunction))
BF->addDecorate(DecorationVectorComputeFunctionINTEL);
if (Attrs.hasFnAttr(kVCMetadata::VCSIMTCall)) {
SPIRVWord SIMTMode = 0;
Attrs.getFnAttr(kVCMetadata::VCSIMTCall)
.getValueAsString()
.getAsInteger(0, SIMTMode);
BF->addDecorate(DecorationSIMTCallINTEL, SIMTMode);
}
if (Attrs.hasRetAttr(kVCMetadata::VCSingleElementVector))
translateSEVDecoration(
Attrs.getAttributeAtIndex(AttributeList::ReturnIndex,
kVCMetadata::VCSingleElementVector),
BF);
for (Function::arg_iterator I = F->arg_begin(), E = F->arg_end(); I != E;
++I) {
auto ArgNo = I->getArgNo();
SPIRVFunctionParameter *BA = BF->getArgument(ArgNo);
if (Attrs.hasParamAttr(ArgNo, kVCMetadata::VCArgumentIOKind)) {
SPIRVWord Kind = {};
Attrs.getParamAttr(ArgNo, kVCMetadata::VCArgumentIOKind)
.getValueAsString()
.getAsInteger(0, Kind);
BA->addDecorate(DecorationFuncParamIOKindINTEL, Kind);
}
if (Attrs.hasParamAttr(ArgNo, kVCMetadata::VCSingleElementVector))
translateSEVDecoration(
Attrs.getParamAttr(ArgNo, kVCMetadata::VCSingleElementVector), BA);
if (Attrs.hasParamAttr(ArgNo, kVCMetadata::VCMediaBlockIO)) {
assert(BA->getType()->isTypeImage() &&
"VCMediaBlockIO attribute valid only on image parameters");
BA->addDecorate(DecorationMediaBlockIOINTEL);
}
}
if (!isKernel(F) &&
BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_float_controls2) &&
Attrs.hasFnAttr(kVCMetadata::VCFloatControl)) {
SPIRVWord Mode = 0;
Attrs.getFnAttr(kVCMetadata::VCFloatControl)
.getValueAsString()
.getAsInteger(0, Mode);
VCFloatTypeSizeMap::foreach (
[&](VCFloatType FloatType, unsigned TargetWidth) {
BF->addDecorate(new SPIRVDecorateFunctionDenormModeINTEL(
BF, TargetWidth, getFPDenormMode(Mode, FloatType)));
BF->addDecorate(new SPIRVDecorateFunctionRoundingModeINTEL(
BF, TargetWidth, getFPRoundingMode(Mode)));
BF->addDecorate(new SPIRVDecorateFunctionFloatingPointModeINTEL(
BF, TargetWidth, getFPOperationMode(Mode)));
});
}
}
void LLVMToSPIRVBase::transFPGAFunctionMetadata(SPIRVFunction *BF,
Function *F) {
if (MDNode *StallEnable = F->getMetadata(kSPIR2MD::StallEnable)) {
if (BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_fpga_cluster_attributes)) {
if (getMDOperandAsInt(StallEnable, 0))
BF->addDecorate(new SPIRVDecorateStallEnableINTEL(BF));
}
}
if (MDNode *LoopFuse = F->getMetadata(kSPIR2MD::LoopFuse)) {
if (BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_loop_fuse)) {
size_t Depth = getMDOperandAsInt(LoopFuse, 0);
size_t Independent = getMDOperandAsInt(LoopFuse, 1);
BF->addDecorate(
new SPIRVDecorateFuseLoopsInFunctionINTEL(BF, Depth, Independent));
}
}
if (MDNode *PreferDSP = F->getMetadata(kSPIR2MD::PreferDSP)) {
if (BM->isAllowedToUseExtension(ExtensionID::SPV_INTEL_fpga_dsp_control)) {
size_t Mode = getMDOperandAsInt(PreferDSP, 0);
MDNode *PropDSPPref = F->getMetadata(kSPIR2MD::PropDSPPref);
size_t Propagate = PropDSPPref ? getMDOperandAsInt(PropDSPPref, 0) : 0;
BF->addDecorate(new SPIRVDecorateMathOpDSPModeINTEL(BF, Mode, Propagate));
}
}
if (MDNode *InitiationInterval =
F->getMetadata(kSPIR2MD::InitiationInterval)) {
if (BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_fpga_invocation_pipelining_attributes)) {
if (size_t Cycles = getMDOperandAsInt(InitiationInterval, 0))
BF->addDecorate(new SPIRVDecorateInitiationIntervalINTEL(BF, Cycles));
}
}
if (MDNode *MaxConcurrency = F->getMetadata(kSPIR2MD::MaxConcurrency)) {
if (BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_fpga_invocation_pipelining_attributes)) {
size_t Invocations = getMDOperandAsInt(MaxConcurrency, 0);
BF->addDecorate(new SPIRVDecorateMaxConcurrencyINTEL(BF, Invocations));
}
}
if (MDNode *DisableLoopPipelining =
F->getMetadata(kSPIR2MD::DisableLoopPipelining)) {
if (BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_fpga_invocation_pipelining_attributes)) {
size_t Disable = getMDOperandAsInt(DisableLoopPipelining, 0);
BF->addDecorate(new SPIRVDecoratePipelineEnableINTEL(BF, !Disable));
}
}
}
SPIRVValue *LLVMToSPIRVBase::transConstant(Value *V) {
if (auto CPNull = dyn_cast<ConstantPointerNull>(V))
return BM->addNullConstant(
bcast<SPIRVTypePointer>(transType(CPNull->getType())));
if (auto CAZero = dyn_cast<ConstantAggregateZero>(V)) {
Type *AggType = CAZero->getType();
if (const StructType *ST = dyn_cast<StructType>(AggType))
if (ST->hasName() &&
ST->getName() == getSPIRVTypeName(kSPIRVTypeName::ConstantSampler))
return BM->addSamplerConstant(transType(AggType), 0, 0, 0);
return BM->addNullConstant(transType(AggType));
}
if (auto ConstI = dyn_cast<ConstantInt>(V)) {
unsigned BitWidth = ConstI->getType()->getBitWidth();
if (BitWidth > 64) {
BM->getErrorLog().checkError(
BM->isAllowedToUseExtension(
ExtensionID::SPV_INTEL_arbitrary_precision_integers),
SPIRVEC_InvalidBitWidth, std::to_string(BitWidth));
return BM->addConstant(transType(V->getType()), ConstI->getValue());
}
return BM->addConstant(transType(V->getType()), ConstI->getZExtValue());
}
if (auto ConstFP = dyn_cast<ConstantFP>(V)) {
auto BT = static_cast<SPIRVType *>(transType(V->getType()));
return BM->addConstant(
BT, ConstFP->getValueAPF().bitcastToAPInt().getZExtValue());
}
if (auto ConstDA = dyn_cast<ConstantDataArray>(V)) {
std::vector<SPIRVValue *> BV;
for (unsigned I = 0, E = ConstDA->getNumElements(); I != E; ++I)
BV.push_back(transValue(ConstDA->getElementAsConstant(I), nullptr, true,
FuncTransMode::Pointer));
return BM->addCompositeConstant(transType(V->getType()), BV);
}
if (auto ConstA = dyn_cast<ConstantArray>(V)) {
std::vector<SPIRVValue *> BV;
for (auto I = ConstA->op_begin(), E = ConstA->op_end(); I != E; ++I)
BV.push_back(transValue(*I, nullptr, true, FuncTransMode::Pointer));
return BM->addCompositeConstant(transType(V->getType()), BV);
}
if (auto ConstDV = dyn_cast<ConstantDataVector>(V)) {
std::vector<SPIRVValue *> BV;
for (unsigned I = 0, E = ConstDV->getNumElements(); I != E; ++I)
BV.push_back(transValue(ConstDV->getElementAsConstant(I), nullptr, true,
FuncTransMode::Pointer));
return BM->addCompositeConstant(transType(V->getType()), BV);
}
if (auto ConstV = dyn_cast<ConstantVector>(V)) {
std::vector<SPIRVValue *> BV;
for (auto I = ConstV->op_begin(), E = ConstV->op_end(); I != E; ++I)
BV.push_back(transValue(*I, nullptr, true, FuncTransMode::Pointer));
return BM->addCompositeConstant(transType(V->getType()), BV);
}
if (const auto *ConstV = dyn_cast<ConstantStruct>(V)) {
StringRef StructName;
if (ConstV->getType()->hasName())
StructName = ConstV->getType()->getName();
if (StructName == getSPIRVTypeName(kSPIRVTypeName::ConstantSampler)) {
assert(ConstV->getNumOperands() == 3);
SPIRVWord AddrMode =
ConstV->getOperand(0)->getUniqueInteger().getZExtValue(),
Normalized =
ConstV->getOperand(1)->getUniqueInteger().getZExtValue(),
FilterMode =
ConstV->getOperand(2)->getUniqueInteger().getZExtValue();
assert(AddrMode < 5 && "Invalid addressing mode");
assert(Normalized < 2 && "Invalid value of normalized coords");
assert(FilterMode < 2 && "Invalid filter mode");
SPIRVType *SamplerTy = transType(ConstV->getType());
return BM->addSamplerConstant(SamplerTy, AddrMode, Normalized,
FilterMode);
}
if (StructName == getSPIRVTypeName(kSPIRVTypeName::ConstantPipeStorage)) {
assert(ConstV->getNumOperands() == 3);
SPIRVWord PacketSize =
ConstV->getOperand(0)->getUniqueInteger().getZExtValue(),
PacketAlign =
ConstV->getOperand(1)->getUniqueInteger().getZExtValue(),
Capacity =
ConstV->getOperand(2)->getUniqueInteger().getZExtValue();
assert(PacketAlign >= 1 && "Invalid packet alignment");
assert(PacketSize >= PacketAlign && PacketSize % PacketAlign == 0 &&
"Invalid packet size and/or alignment.");
SPIRVType *PipeStorageTy = transType(ConstV->getType());
return BM->addPipeStorageConstant(PipeStorageTy, PacketSize, PacketAlign,
Capacity);
}
std::vector<SPIRVValue *> BV;
for (auto I = ConstV->op_begin(), E = ConstV->op_end(); I != E; ++I)
BV.push_back(transValue(*I, nullptr, true, FuncTransMode::Pointer));
return BM->addCompositeConstant(transType(V->getType()), BV);
}
if (auto ConstUE = dyn_cast<ConstantExpr>(V)) {
auto Inst = ConstUE->getAsInstruction();
SPIRVDBG(dbgs() << "ConstantExpr: " << *ConstUE << '\n';
dbgs() << "Instruction: " << *Inst << '\n';)
auto BI = transValue(Inst, nullptr, false);