| //===--- 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"); |
| } |
| } |