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
ConstructJob(Compilation & C,const JobAction & JA,const InputInfo & Output,const InputInfoList & Inputs,const ArgList & Args,const char * LinkingOutput) const23 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
getAMDGPUTargetFeatures(const Driver & D,const llvm::opt::ArgList & Args,std::vector<StringRef> & Features)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
AMDGPUToolChain(const Driver & D,const llvm::Triple & Triple,const ArgList & Args)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
buildLinker() const63 Tool *AMDGPUToolChain::buildLinker() const {
64 return new tools::amdgpu::Linker(*this);
65 }
66
67 DerivedArgList *
TranslateArgs(const DerivedArgList & Args,StringRef BoundArch,Action::OffloadKind DeviceOffloadKind) const68 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
addClangTargetOptions(const llvm::opt::ArgList & DriverArgs,llvm::opt::ArgStringList & CC1Args,Action::OffloadKind DeviceOffloadingKind) const102 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 foreseeable 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