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//===--- SPIRV.cpp - SPIR-V Tool Implementations ----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "SPIRV.h"
#include "CommonArgs.h"
#include "clang/Basic/Version.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/InputInfo.h"
#include "clang/Driver/Options.h"
using namespace clang::driver;
using namespace clang::driver::toolchains;
using namespace clang::driver::tools;
using namespace llvm::opt;
void SPIRV::constructTranslateCommand(Compilation &C, const Tool &T,
const JobAction &JA,
const InputInfo &Output,
const InputInfo &Input,
const llvm::opt::ArgStringList &Args) {
llvm::opt::ArgStringList CmdArgs(Args);
CmdArgs.push_back(Input.getFilename());
assert(Input.getType() != types::TY_PP_Asm && "Unexpected input type");
if (Output.getType() == types::TY_PP_Asm)
CmdArgs.push_back("--spirv-tools-dis");
CmdArgs.append({"-o", Output.getFilename()});
// Try to find "llvm-spirv-<LLVM_VERSION_MAJOR>". Otherwise, fall back to
// plain "llvm-spirv".
using namespace std::string_literals;
auto VersionedTool = "llvm-spirv-"s + std::to_string(LLVM_VERSION_MAJOR);
std::string ExeCand = T.getToolChain().GetProgramPath(VersionedTool.c_str());
if (!llvm::sys::fs::can_execute(ExeCand))
ExeCand = T.getToolChain().GetProgramPath("llvm-spirv");
const char *Exec = C.getArgs().MakeArgString(ExeCand);
C.addCommand(std::make_unique<Command>(JA, T, ResponseFileSupport::None(),
Exec, CmdArgs, Input, Output));
}
void SPIRV::constructAssembleCommand(Compilation &C, const Tool &T,
const JobAction &JA,
const InputInfo &Output,
const InputInfo &Input,
const llvm::opt::ArgStringList &Args) {
llvm::opt::ArgStringList CmdArgs(Args);
CmdArgs.push_back(Input.getFilename());
assert(Input.getType() == types::TY_PP_Asm && "Unexpected input type");
CmdArgs.append({"-o", Output.getFilename()});
// Try to find "spirv-as-<LLVM_VERSION_MAJOR>". Otherwise, fall back to
// plain "spirv-as".
using namespace std::string_literals;
auto VersionedTool = "spirv-as-"s + std::to_string(LLVM_VERSION_MAJOR);
std::string ExeCand = T.getToolChain().GetProgramPath(VersionedTool.c_str());
if (!llvm::sys::fs::can_execute(ExeCand))
ExeCand = T.getToolChain().GetProgramPath("spirv-as");
const char *Exec = C.getArgs().MakeArgString(ExeCand);
C.addCommand(std::make_unique<Command>(JA, T, ResponseFileSupport::None(),
Exec, CmdArgs, Input, Output));
}
void SPIRV::Translator::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
claimNoWarnArgs(Args);
if (Inputs.size() != 1)
llvm_unreachable("Invalid number of input files.");
constructTranslateCommand(C, *this, JA, Output, Inputs[0], {});
}
void SPIRV::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *AssembleOutput) const {
claimNoWarnArgs(Args);
if (Inputs.size() != 1)
llvm_unreachable("Invalid number of input files.");
constructAssembleCommand(C, *this, JA, Output, Inputs[0], {});
}
clang::driver::Tool *SPIRVToolChain::getTranslator() const {
if (!Translator)
Translator = std::make_unique<SPIRV::Translator>(*this);
return Translator.get();
}
clang::driver::Tool *SPIRVToolChain::getAssembler() const {
if (!Assembler)
Assembler = std::make_unique<SPIRV::Assembler>(*this);
return Assembler.get();
}
clang::driver::Tool *SPIRVToolChain::SelectTool(const JobAction &JA) const {
Action::ActionClass AC = JA.getKind();
return SPIRVToolChain::getTool(AC);
}
clang::driver::Tool *SPIRVToolChain::getTool(Action::ActionClass AC) const {
switch (AC) {
default:
break;
case Action::BackendJobClass:
return SPIRVToolChain::getTranslator();
case Action::AssembleJobClass:
return SPIRVToolChain::getAssembler();
}
return ToolChain::getTool(AC);
}
clang::driver::Tool *SPIRVToolChain::buildLinker() const {
return new tools::SPIRV::Linker(*this);
}
void SPIRV::Linker::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const ToolChain &ToolChain = getToolChain();
std::string Linker = ToolChain.GetProgramPath(getShortName());
ArgStringList CmdArgs;
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
// Use of --sycl-link will call the clang-sycl-linker instead of
// the default linker (spirv-link).
if (Args.hasArg(options::OPT_sycl_link))
Linker = ToolChain.GetProgramPath("clang-sycl-linker");
C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
Args.MakeArgString(Linker), CmdArgs,
Inputs, Output));
}
SPIRVToolChain::SPIRVToolChain(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args)
: ToolChain(D, Triple, Args) {
// TODO: Revisit need/use of --sycl-link option once SYCL toolchain is
// available and SYCL linking support is moved there.
NativeLLVMSupport = Args.hasArg(options::OPT_sycl_link);
}
bool SPIRVToolChain::HasNativeLLVMSupport() const { return NativeLLVMSupport; }
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