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//===- SPIRVValue.cpp - Class to represent a SPIR-V Value -------*- C++ -*-===//
//
// The LLVM/SPIRV 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 defines the values defined in SPIR-V spec with op codes.
///
/// The name of the SPIR-V values follow the op code name in the spec.
/// This is for readability and ease of using macro to handle types.
//
//===----------------------------------------------------------------------===//
#include "SPIRVValue.h"
#include "SPIRVEnum.h"
#include "llvm/ADT/APInt.h"
namespace SPIRV {
void SPIRVValue::setAlignment(SPIRVWord A) {
if (A == 0) {
eraseDecorate(DecorationAlignment);
return;
}
SPIRVWord PrevAlignment;
if (hasAlignment(&PrevAlignment)) {
// Do nothing if the Id already has an Alignment decoration, provided
// it matches the new alignment.
assert(A == PrevAlignment &&
"New alignment does not match existing alignment");
return;
}
addDecorate(new SPIRVDecorate(DecorationAlignment, this, A));
SPIRVDBG(spvdbgs() << "Set alignment " << A << " for obj " << Id << "\n")
}
bool SPIRVValue::hasAlignment(SPIRVWord *Result) const {
return hasDecorate(DecorationAlignment, 0, Result);
}
bool SPIRVValue::isVolatile() const { return hasDecorate(DecorationVolatile); }
void SPIRVValue::setVolatile(bool IsVolatile) {
if (!IsVolatile) {
eraseDecorate(DecorationVolatile);
return;
}
addDecorate(new SPIRVDecorate(DecorationVolatile, this));
SPIRVDBG(spvdbgs() << "Set volatile "
<< " for obj " << Id << "\n")
}
bool SPIRVValue::hasNoSignedWrap() const {
return hasDecorate(DecorationNoSignedWrap);
}
bool SPIRVValue::hasNoUnsignedWrap() const {
return hasDecorate(DecorationNoUnsignedWrap);
}
void SPIRVValue::setFPFastMathMode(SPIRVWord M) {
if (M == 0) {
eraseDecorate(DecorationFPFastMathMode);
return;
}
addDecorate(new SPIRVDecorate(DecorationFPFastMathMode, this, M));
SPIRVDBG(spvdbgs() << "Set fast math mode to " << M << " for obj " << Id
<< "\n")
}
template <spv::Decoration NoIntegerWrapDecoration>
void SPIRVValue::setNoIntegerDecorationWrap(bool HasNoIntegerWrap) {
if (!HasNoIntegerWrap) {
eraseDecorate(NoIntegerWrapDecoration);
return;
}
// NoSignedWrap and NoUnsignedWrap decorations are available only if it is
// allowed to use SPIR-V 1.4 or if SPV_KHR_no_integer_wrap_decoration
// extension is enabled
#ifdef _SPIRVDBG
const std::string InstStr =
NoIntegerWrapDecoration == DecorationNoSignedWrap ? "nsw" : "nuw";
#endif // _SPIRVDBG
if (Module->isAllowedToUseVersion(VersionNumber::SPIRV_1_4)) {
Module->setMinSPIRVVersion(VersionNumber::SPIRV_1_4);
addDecorate(new SPIRVDecorate(NoIntegerWrapDecoration, this));
SPIRVDBG(spvdbgs() << "Set " << InstStr << " for obj " << Id << "\n")
} else if (Module->isAllowedToUseExtension(
ExtensionID::SPV_KHR_no_integer_wrap_decoration)) {
Module->addExtension(ExtensionID::SPV_KHR_no_integer_wrap_decoration);
addDecorate(new SPIRVDecorate(NoIntegerWrapDecoration, this));
SPIRVDBG(spvdbgs() << "Set " << InstStr << " for obj " << Id << "\n")
} else {
SPIRVDBG(spvdbgs() << "Skip setting " << InstStr << " for obj " << Id
<< "\n")
}
}
template void
SPIRVValue::setNoIntegerDecorationWrap<DecorationNoSignedWrap>(bool);
template void
SPIRVValue::setNoIntegerDecorationWrap<DecorationNoUnsignedWrap>(bool);
template <spv::Op OC>
void SPIRVConstantBase<OC>::setWords(const uint64_t *TheValue) {
assert(TheValue && "Nullptr value");
recalculateWordCount();
validate();
Words.resize(NumWords);
for (size_t I = 0; I != NumWords / 2; ++I) {
Words[I * 2] = static_cast<SPIRVWord>(TheValue[I]) & SPIRVWORD_MAX;
Words[I * 2 + 1] =
static_cast<SPIRVWord>((TheValue[I] >> SpirvWordBitWidth)) &
SPIRVWORD_MAX;
}
if (NumWords % 2)
Words.back() =
static_cast<SPIRVWord>(TheValue[NumWords / 2]) & SPIRVWORD_MAX;
}
// Complete constructor for AP integer constant
template <spv::Op OC>
SPIRVConstantBase<OC>::SPIRVConstantBase(SPIRVModule *M, SPIRVType *TheType,
SPIRVId TheId,
const llvm::APInt &TheValue)
: SPIRVValue(M, 0, OC, TheType, TheId) {
setWords(TheValue.getRawData());
}
// To solve errors about undefined reference to template class methods
// definitions.
template class SPIRVConstantBase<OpConstant>;
template class SPIRVConstantBase<OpSpecConstant>;
} // namespace SPIRV
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