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| author | Jim Grosbach <grosbach@apple.com> | 2014-04-12 01:34:31 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2014-04-12 01:34:31 +0000 |
| commit | d023e14a5e2af661d1bca44939f5b433fd00a238 (patch) | |
| tree | 0fae9970d986c3b627a04098542f1ea571ac9dae | |
| parent | 6bb00df864ea4e2f74f47c088b65baaff962cca5 (diff) | |
| download | llvm-d023e14a5e2af661d1bca44939f5b433fd00a238.tar.gz llvm-d023e14a5e2af661d1bca44939f5b433fd00a238.tar.bz2 llvm-d023e14a5e2af661d1bca44939f5b433fd00a238.tar.xz | |
llc: Add support for -mcpu=native.
When -mcpu=native is passed, autodetect the host CPU and pass that
as the CPU name to the TargetMachine factory method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206095 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | tools/llc/llc.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/llc/llc.cpp b/tools/llc/llc.cpp index 8fbdc49e5e..0c8d14d11d 100644 --- a/tools/llc/llc.cpp +++ b/tools/llc/llc.cpp @@ -213,6 +213,12 @@ static int compileModule(char **argv, LLVMContext &Context) { bool SkipModule = MCPU == "help" || (!MAttrs.empty() && MAttrs.front() == "help"); + // If user asked for the 'native' CPU, autodetect here. If autodection fails, + // this will set the CPU to an empty string which tells the target to + // pick a basic default. + if (MCPU == "native") + MCPU = sys::getHostCPUName(); + // If user just wants to list available options, skip module loading if (!SkipModule) { M.reset(ParseIRFile(InputFilename, Err, Context)); |