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//===- SPIRVStream.h - Class to represent a SPIR-V Stream -------*- 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 Word class for SPIR-V.
///
//===----------------------------------------------------------------------===//
#ifndef SPIRVSTREAM_H
#define SPIRVSTREAM_H
#include "SPIRVDebug.h"
#include "SPIRVExtInst.h"
#include "SPIRVModule.h"
#include <algorithm>
#include <cstdint>
#include <iostream>
#include <iterator>
#include <string>
#include <vector>
namespace SPIRV {
#ifndef _SPIRV_SUPPORT_TEXT_FMT
#define _SPIRV_SUPPORT_TEXT_FMT
#endif
#ifdef _SPIRV_SUPPORT_TEXT_FMT
// Use textual format for SPIRV.
extern bool SPIRVUseTextFormat;
#endif
class SPIRVFunction;
class SPIRVBasicBlock;
class SPIRVDecoder {
public:
SPIRVDecoder(std::istream &InputStream, SPIRVModule &Module)
: IS(InputStream), M(Module), WordCount(0), OpCode(OpNop), Scope(NULL) {}
SPIRVDecoder(std::istream &InputStream, SPIRVFunction &F);
SPIRVDecoder(std::istream &InputStream, SPIRVBasicBlock &BB);
void setScope(SPIRVEntry *);
bool getWordCountAndOpCode();
SPIRVEntry *getEntry();
void validate() const;
std::istream &IS;
SPIRVModule &M;
SPIRVWord WordCount;
Op OpCode;
SPIRVEntry *Scope; // A function or basic block
};
class SPIRVEncoder {
public:
explicit SPIRVEncoder(spv_ostream &OutputStream) : OS(OutputStream) {}
spv_ostream &OS;
};
/// Output a new line in text mode. Do nothing in binary mode.
class SPIRVNL {
friend spv_ostream &operator<<(spv_ostream &O, const SPIRVNL &E);
};
template <typename T>
const SPIRVDecoder &DecodeBinary(const SPIRVDecoder &I, T &V) {
uint32_t W;
I.IS.read(reinterpret_cast<char *>(&W), sizeof(W));
V = static_cast<T>(W);
SPIRVDBG(spvdbgs() << "Read word: W = " << W << " V = " << V << '\n');
return I;
}
template <typename T>
const SPIRVDecoder &operator>>(const SPIRVDecoder &I, T &V) {
#ifdef _SPIRV_SUPPORT_TEXT_FMT
if (SPIRVUseTextFormat) {
uint32_t W;
I.IS >> W;
V = static_cast<T>(W);
SPIRVDBG(spvdbgs() << "Read word: W = " << W << " V = " << V << '\n');
return I;
}
#endif
return DecodeBinary(I, V);
}
template <typename T>
const SPIRVDecoder &operator>>(const SPIRVDecoder &I, T *&P) {
SPIRVId Id;
I >> Id;
P = static_cast<T *>(I.M.getEntry(Id));
return I;
}
template <typename IterTy>
const SPIRVDecoder &operator>>(const SPIRVDecoder &Decoder,
const std::pair<IterTy, IterTy> &Range) {
for (IterTy I = Range.first, E = Range.second; I != E; ++I)
Decoder >> *I;
return Decoder;
}
template <typename T>
const SPIRVDecoder &operator>>(const SPIRVDecoder &I, std::vector<T> &V) {
for (size_t i = 0, e = V.size(); i != e; ++i)
I >> V[i];
return I;
}
template <typename T>
const SPIRVEncoder &operator<<(const SPIRVEncoder &O, T V) {
#ifdef _SPIRV_SUPPORT_TEXT_FMT
if (SPIRVUseTextFormat) {
O.OS << V << " ";
return O;
}
#endif
uint32_t W = static_cast<uint32_t>(V);
O.OS.write(reinterpret_cast<char *>(&W), sizeof(W));
return O;
}
template <typename T>
const SPIRVEncoder &operator<<(const SPIRVEncoder &O, T *P) {
return O << P->getId();
}
template <typename T>
const SPIRVEncoder &operator<<(const SPIRVEncoder &O, const std::vector<T> &V) {
for (size_t i = 0, e = V.size(); i != e; ++i)
O << V[i];
return O;
}
template <typename IterTy>
const SPIRVEncoder &operator<<(const SPIRVEncoder &Encoder,
const std::pair<IterTy, IterTy> &Range) {
for (IterTy I = Range.first, E = Range.second; I != E; ++I)
Encoder << *I;
return Encoder;
}
#define SPIRV_DEC_ENCDEC(Type) \
const SPIRVEncoder &operator<<(const SPIRVEncoder &O, Type V); \
const SPIRVDecoder &operator>>(const SPIRVDecoder &I, Type &V);
SPIRV_DEC_ENCDEC(Op)
SPIRV_DEC_ENCDEC(Capability)
SPIRV_DEC_ENCDEC(Decoration)
SPIRV_DEC_ENCDEC(OCLExtOpKind)
SPIRV_DEC_ENCDEC(LinkageType)
const SPIRVEncoder &operator<<(const SPIRVEncoder &O, const std::string &Str);
const SPIRVDecoder &operator>>(const SPIRVDecoder &I, std::string &Str);
} // namespace SPIRV
#endif
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