diff options
Diffstat (limited to 'clang/lib/Basic/Targets.cpp')
| -rw-r--r-- | clang/lib/Basic/Targets.cpp | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp index e496a1f6cd7..395f452ea83 100644 --- a/clang/lib/Basic/Targets.cpp +++ b/clang/lib/Basic/Targets.cpp @@ -2728,7 +2728,11 @@ void X86TargetInfo::setXOPLevel(llvm::StringMap<bool> &Features, XOPEnum Level, void X86TargetInfo::setFeatureEnabledImpl(llvm::StringMap<bool> &Features, StringRef Name, bool Enabled) { - Features[Name] = Enabled; + // This is a bit of a hack to deal with the sse4 target feature when used + // as part of the target attribute. We handle sse4 correctly everywhere + // else. See below for more information on how we handle the sse4 options. + if (Name != "sse4") + Features[Name] = Enabled; if (Name == "mmx") { setMMXLevel(Features, MMX, Enabled); @@ -2779,6 +2783,15 @@ void X86TargetInfo::setFeatureEnabledImpl(llvm::StringMap<bool> &Features, } else if (Name == "sha") { if (Enabled) setSSELevel(Features, SSE2, Enabled); + } else if (Name == "sse4") { + // We can get here via the __target__ attribute since that's not controlled + // via the -msse4/-mno-sse4 command line alias. Handle this the same way + // here - turn on the sse4.2 if enabled, turn off the sse4.1 level if + // disabled. + if (Enabled) + setSSELevel(Features, SSE42, Enabled); + else + setSSELevel(Features, SSE41, Enabled); } } |
