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| //===--- AMDGPU.cpp - AMDGPU ToolChain 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 "AMDGPU.h"
#include "CommonArgs.h"
#include "InputInfo.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "llvm/Option/ArgList.h"
using namespace clang::driver;
using namespace clang::driver::tools;
using namespace clang::driver::toolchains;
using namespace clang;
using namespace llvm::opt;
void amdgpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
std::string Linker = getToolChain().GetProgramPath(getShortName());
ArgStringList CmdArgs;
AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
CmdArgs.push_back("-shared");
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
C.addCommand(std::make_unique<Command>(JA, *this, Args.MakeArgString(Linker),
CmdArgs, Inputs));
}
void amdgpu::getAMDGPUTargetFeatures(const Driver &D,
const llvm::opt::ArgList &Args,
std::vector<StringRef> &Features) {
if (const Arg *dAbi = Args.getLastArg(options::OPT_mamdgpu_debugger_abi))
D.Diag(diag::err_drv_clang_unsupported) << dAbi->getAsString(Args);
if (Args.getLastArg(options::OPT_mwavefrontsize64)) {
Features.push_back("-wavefrontsize16");
Features.push_back("-wavefrontsize32");
Features.push_back("+wavefrontsize64");
}
if (Args.getLastArg(options::OPT_mno_wavefrontsize64)) {
Features.push_back("-wavefrontsize16");
Features.push_back("+wavefrontsize32");
Features.push_back("-wavefrontsize64");
}
handleTargetFeaturesGroup(
Args, Features, options::OPT_m_amdgpu_Features_Group);
}
/// AMDGPU Toolchain
AMDGPUToolChain::AMDGPUToolChain(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args)
: Generic_ELF(D, Triple, Args),
OptionsDefault({{options::OPT_O, "3"},
{options::OPT_cl_std_EQ, "CL1.2"}}) {}
Tool *AMDGPUToolChain::buildLinker() const {
return new tools::amdgpu::Linker(*this);
}
DerivedArgList *
AMDGPUToolChain::TranslateArgs(const DerivedArgList &Args, StringRef BoundArch,
Action::OffloadKind DeviceOffloadKind) const {
DerivedArgList *DAL =
Generic_ELF::TranslateArgs(Args, BoundArch, DeviceOffloadKind);
// Do nothing if not OpenCL (-x cl)
if (!Args.getLastArgValue(options::OPT_x).equals("cl"))
return DAL;
if (!DAL)
DAL = new DerivedArgList(Args.getBaseArgs());
for (auto *A : Args)
DAL->append(A);
const OptTable &Opts = getDriver().getOpts();
// Phase 1 (.cl -> .bc)
if (Args.hasArg(options::OPT_c) && Args.hasArg(options::OPT_emit_llvm)) {
DAL->AddFlagArg(nullptr, Opts.getOption(getTriple().isArch64Bit()
? options::OPT_m64
: options::OPT_m32));
// Have to check OPT_O4, OPT_O0 & OPT_Ofast separately
// as they defined that way in Options.td
if (!Args.hasArg(options::OPT_O, options::OPT_O0, options::OPT_O4,
options::OPT_Ofast))
DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_O),
getOptionDefault(options::OPT_O));
}
return DAL;
}
void AMDGPUToolChain::addClangTargetOptions(
const llvm::opt::ArgList &DriverArgs,
llvm::opt::ArgStringList &CC1Args,
Action::OffloadKind DeviceOffloadingKind) const {
// Default to "hidden" visibility, as object level linking will not be
// supported for the foreseeable future.
if (!DriverArgs.hasArg(options::OPT_fvisibility_EQ,
options::OPT_fvisibility_ms_compat)) {
CC1Args.push_back("-fvisibility");
CC1Args.push_back("hidden");
CC1Args.push_back("-fapply-global-visibility-to-externs");
}
}
|