1 //===--- AMDGPU.cpp - AMDGPU ToolChain Implementations ----------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "AMDGPU.h" 11 #include "CommonArgs.h" 12 #include "InputInfo.h" 13 #include "clang/Driver/Compilation.h" 14 #include "clang/Driver/DriverDiagnostic.h" 15 #include "llvm/Option/ArgList.h" 16 17 using namespace clang::driver; 18 using namespace clang::driver::tools; 19 using namespace clang::driver::toolchains; 20 using namespace clang; 21 using namespace llvm::opt; 22 23 void amdgpu::Linker::ConstructJob(Compilation &C, const JobAction &JA, 24 const InputInfo &Output, 25 const InputInfoList &Inputs, 26 const ArgList &Args, 27 const char *LinkingOutput) const { 28 29 std::string Linker = getToolChain().GetProgramPath(getShortName()); 30 ArgStringList CmdArgs; 31 AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); 32 CmdArgs.push_back("-shared"); 33 CmdArgs.push_back("-o"); 34 CmdArgs.push_back(Output.getFilename()); 35 C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), 36 CmdArgs, Inputs)); 37 } 38 39 void amdgpu::getAMDGPUTargetFeatures(const Driver &D, 40 const llvm::opt::ArgList &Args, 41 std::vector<StringRef> &Features) { 42 if (const Arg *dAbi = Args.getLastArg(options::OPT_mamdgpu_debugger_abi)) { 43 StringRef value = dAbi->getValue(); 44 if (value == "1.0") { 45 Features.push_back("+amdgpu-debugger-insert-nops"); 46 Features.push_back("+amdgpu-debugger-emit-prologue"); 47 } else { 48 D.Diag(diag::err_drv_clang_unsupported) << dAbi->getAsString(Args); 49 } 50 } 51 52 handleTargetFeaturesGroup( 53 Args, Features, options::OPT_m_amdgpu_Features_Group); 54 } 55 56 /// AMDGPU Toolchain 57 AMDGPUToolChain::AMDGPUToolChain(const Driver &D, const llvm::Triple &Triple, 58 const ArgList &Args) 59 : Generic_ELF(D, Triple, Args), 60 OptionsDefault({{options::OPT_O, "3"}, 61 {options::OPT_cl_std_EQ, "CL1.2"}}) {} 62 63 Tool *AMDGPUToolChain::buildLinker() const { 64 return new tools::amdgpu::Linker(*this); 65 } 66 67 DerivedArgList * 68 AMDGPUToolChain::TranslateArgs(const DerivedArgList &Args, StringRef BoundArch, 69 Action::OffloadKind DeviceOffloadKind) const { 70 71 DerivedArgList *DAL = 72 Generic_ELF::TranslateArgs(Args, BoundArch, DeviceOffloadKind); 73 74 // Do nothing if not OpenCL (-x cl) 75 if (!Args.getLastArgValue(options::OPT_x).equals("cl")) 76 return DAL; 77 78 if (!DAL) 79 DAL = new DerivedArgList(Args.getBaseArgs()); 80 for (auto *A : Args) 81 DAL->append(A); 82 83 const OptTable &Opts = getDriver().getOpts(); 84 85 // Phase 1 (.cl -> .bc) 86 if (Args.hasArg(options::OPT_c) && Args.hasArg(options::OPT_emit_llvm)) { 87 DAL->AddFlagArg(nullptr, Opts.getOption(getTriple().isArch64Bit() 88 ? options::OPT_m64 89 : options::OPT_m32)); 90 91 // Have to check OPT_O4, OPT_O0 & OPT_Ofast separately 92 // as they defined that way in Options.td 93 if (!Args.hasArg(options::OPT_O, options::OPT_O0, options::OPT_O4, 94 options::OPT_Ofast)) 95 DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_O), 96 getOptionDefault(options::OPT_O)); 97 } 98 99 return DAL; 100 } 101 102 void AMDGPUToolChain::addClangTargetOptions( 103 const llvm::opt::ArgList &DriverArgs, 104 llvm::opt::ArgStringList &CC1Args, 105 Action::OffloadKind DeviceOffloadingKind) const { 106 // Default to "hidden" visibility, as object level linking will not be 107 // supported for the forseeable future. 108 if (!DriverArgs.hasArg(options::OPT_fvisibility_EQ, 109 options::OPT_fvisibility_ms_compat)) { 110 CC1Args.push_back("-fvisibility"); 111 CC1Args.push_back("hidden"); 112 } 113 } 114