diff options
Diffstat (limited to 'clang/lib/Driver/Tools.cpp')
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index 896811d5d34..ab00f96a83d 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -768,6 +768,15 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, CmdArgs.push_back("-E"); } else if (isa<AssembleJobAction>(JA)) { CmdArgs.push_back("-emit-obj"); + + // At -O0, we use -mrelax-all by default. + bool IsOpt = false; + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) + IsOpt = !A->getOption().matches(options::OPT_O0); + if (Args.hasFlag(options::OPT_mrelax_all, + options::OPT_mno_relax_all, + !IsOpt)) + CmdArgs.push_back("-mrelax-all"); } else if (isa<PrecompileJobAction>(JA)) { // Use PCH if the user requested it, except for C++ (for now). bool UsePCH = D.CCCUsePCH; @@ -1512,6 +1521,15 @@ void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, CmdArgs.push_back("-filetype"); CmdArgs.push_back("obj"); + // At -O0, we use -mrelax-all by default. + bool IsOpt = false; + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) + IsOpt = !A->getOption().matches(options::OPT_O0); + if (Args.hasFlag(options::OPT_mrelax_all, + options::OPT_mno_relax_all, + !IsOpt)) + CmdArgs.push_back("-mrelax-all"); + // FIXME: Add -force_cpusubtype_ALL support, once we have it. // FIXME: Add -g support, once we have it. |
