diff options
| author | Daniel Dunbar <daniel@zuster.org> | 2010-05-27 06:18:05 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2010-05-27 06:18:05 +0000 |
| commit | 9929800b8dfced61e9c97dc8d6e71e144ebf8acc (patch) | |
| tree | 85643d39338d99b84c9bd4d6368009a7ab711f09 /lib/Driver/Tools.cpp | |
| parent | c6082fe347a414a2e19f2ad8fe41720f10733296 (diff) | |
Driver: Add support for -m[no-]relax-all, and make it the default at -O0.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104815 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Driver/Tools.cpp')
| -rw-r--r-- | lib/Driver/Tools.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 896811d5d3..ab00f96a83 100644 --- a/lib/Driver/Tools.cpp +++ b/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. |