diff options
Diffstat (limited to 'lib/Driver/Tools.cpp')
| -rw-r--r-- | lib/Driver/Tools.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 714a21a61a..c963654de5 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -2545,6 +2545,56 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, Args.ClaimAllArgs(options::OPT_emit_llvm); } +void ClangAs::AddARMTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + const Driver &D = getToolChain().getDriver(); + llvm::Triple Triple = getToolChain().getTriple(); + + // Set the CPU based on -march= and -mcpu=. + CmdArgs.push_back("-target-cpu"); + CmdArgs.push_back(getARMTargetCPU(Args, Triple)); + + // Honor -mfpu=. + // + // FIXME: Centralize feature selection, defaulting shouldn't be also in the + // frontend target. + if (const Arg *A = Args.getLastArg(options::OPT_mfpu_EQ)) { + StringRef FPU = A->getValue(Args); + + // Set the target features based on the FPU. + if (FPU == "fpa" || FPU == "fpe2" || FPU == "fpe3" || FPU == "maverick") { + // Disable any default FPU support. + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-vfp2"); + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-vfp3"); + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-neon"); + } else if (FPU == "vfp3-d16" || FPU == "vfpv3-d16") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+vfp3"); + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+d16"); + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-neon"); + } else if (FPU == "vfp") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+vfp2"); + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-neon"); + } else if (FPU == "vfp3" || FPU == "vfpv3") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+vfp3"); + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-neon"); + } else if (FPU == "neon") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+neon"); + } else + D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); + } +} + void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, @@ -2581,6 +2631,17 @@ void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, if (UseRelaxAll(C, Args)) CmdArgs.push_back("-relax-all"); + // Add target specific cpu and features flags. + switch(getToolChain().getTriple().getArch()) { + default: + break; + + case llvm::Triple::arm: + case llvm::Triple::thumb: + AddARMTargetArgs(Args, CmdArgs); + break; + } + // Ignore explicit -force_cpusubtype_ALL option. (void) Args.hasArg(options::OPT_force__cpusubtype__ALL); |