diff options
Diffstat (limited to 'lib/Driver/Tools.cpp')
| -rw-r--r-- | lib/Driver/Tools.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index e5be1e08b6..7dedcc24a5 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -504,6 +504,23 @@ static bool isSignedCharDefault(const llvm::Triple &Triple) { } } +// Handle -mfpmath=. +static void addFPMathArgs(const Driver &D, const Arg *A, const ArgList &Args, + ArgStringList &CmdArgs) { + StringRef FPMath = A->getValue(Args); + + // Set the target features based on the FPMath. + if (FPMath == "neon") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+neonfp"); + } else if (FPMath == "vfp" || FPMath == "vfp2" || FPMath == "vfp3" || + FPMath == "vfp4") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-neonfp"); + } else + D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); +} + void Clang::AddARMTargetArgs(const ArgList &Args, ArgStringList &CmdArgs, bool KernelOrKext) const { @@ -686,6 +703,10 @@ void Clang::AddARMTargetArgs(const ArgList &Args, D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); } + // Honor -mfpmath=. + if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) + addFPMathArgs(D, A, Args, CmdArgs); + // Setting -msoft-float effectively disables NEON because of the GCC // implementation, although the same isn't true of VFP or VFP3. if (FloatABI == "soft") { @@ -2688,6 +2709,10 @@ void ClangAs::AddARMTargetArgs(const ArgList &Args, } else D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); } + + // Honor -mfpmath=. + if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) + addFPMathArgs(D, A, Args, CmdArgs); } void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, |