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| author | Craig Topper <craig.topper@intel.com> | 2020-08-18 14:52:44 -0700 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2020-08-18 15:13:19 -0700 |
| commit | 4cbceb74bb5676d0181d4d0cab5194d90a42c2ec (patch) | |
| tree | e285418c1cf5f30a805a652c48e54bab124f49e0 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 2f0178585722ae289a71cfd81f9ca42235e3aefd (diff) | |
| download | llvm-4cbceb74bb5676d0181d4d0cab5194d90a42c2ec.zip llvm-4cbceb74bb5676d0181d4d0cab5194d90a42c2ec.tar.gz llvm-4cbceb74bb5676d0181d4d0cab5194d90a42c2ec.tar.bz2 | |
[X86] Add basic support for -mtune command line option in clang
Building on the backend support from D85165. This parses the command line option in the driver, passes it on to CC1 and adds a function attribute.
-Still need to support tune on the target attribute.
-Need to use "generic" as the tuning by default. But need to change generic in the backend first.
-Need to set tune if march is specified and mtune isn't.
-May need to disable getHostCPUName's ability to guess CPU name from features when it doesn't have a family/model match for mtune=native. That's what gcc appears to do.
Differential Revision: https://reviews.llvm.org/D85384
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
| -rw-r--r-- | clang/lib/Frontend/CompilerInvocation.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index 3b69eef..477959f 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -3658,6 +3658,7 @@ static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, Opts.EABIVersion = EABIVersion; } Opts.CPU = std::string(Args.getLastArgValue(OPT_target_cpu)); + Opts.TuneCPU = std::string(Args.getLastArgValue(OPT_tune_cpu)); Opts.FPMath = std::string(Args.getLastArgValue(OPT_mfpmath)); Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); Opts.LinkerVersion = |