diff options
| author | Gabor Buella <gabor.buella@intel.com> | 2018-04-11 20:09:09 +0000 |
|---|---|---|
| committer | Gabor Buella <gabor.buella@intel.com> | 2018-04-11 20:09:09 +0000 |
| commit | a052016ef2b1f0098acf61cf10df975350d1d63b (patch) | |
| tree | 6648870c1652a6d9a823fc93731fbfe5f6261d6d /clang/lib/Basic | |
| parent | 2ef36f3571c83650f3e1bac42c810c289851d865 (diff) | |
| download | bcm5719-llvm-a052016ef2b1f0098acf61cf10df975350d1d63b.tar.gz bcm5719-llvm-a052016ef2b1f0098acf61cf10df975350d1d63b.zip | |
[x86] wbnoinvd intrinsic
The WBNOINVD instruction writes back all modified
cache lines in the processor’s internal cache to main memory
but does not invalidate (flush) the internal caches.
Reviewers: craig.topper, zvi, ashlykov
Reviewed By: craig.topper
Differential Revision: https://reviews.llvm.org/D43817
llvm-svn: 329848
Diffstat (limited to 'clang/lib/Basic')
| -rw-r--r-- | clang/lib/Basic/Targets/X86.cpp | 8 | ||||
| -rw-r--r-- | clang/lib/Basic/Targets/X86.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp index 34c406f3b08..387d1f88b55 100644 --- a/clang/lib/Basic/Targets/X86.cpp +++ b/clang/lib/Basic/Targets/X86.cpp @@ -154,6 +154,8 @@ bool X86TargetInfo::initFeatureMap( break; case CK_IcelakeServer: + setFeatureEnabledImpl(Features, "wbnoinvd", true); + LLVM_FALLTHROUGH; case CK_IcelakeClient: setFeatureEnabledImpl(Features, "vaes", true); setFeatureEnabledImpl(Features, "gfni", true); @@ -792,6 +794,8 @@ bool X86TargetInfo::handleTargetFeatures(std::vector<std::string> &Features, HasCLFLUSHOPT = true; } else if (Feature == "+clwb") { HasCLWB = true; + } else if (Feature == "+wbnoinvd") { + HasWBNOINVD = true; } else if (Feature == "+prefetchwt1") { HasPREFETCHWT1 = true; } else if (Feature == "+clzero") { @@ -1134,6 +1138,8 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts, Builder.defineMacro("__CLFLUSHOPT__"); if (HasCLWB) Builder.defineMacro("__CLWB__"); + if (HasWBNOINVD) + Builder.defineMacro("__WBNOINVD__"); if (HasMPX) Builder.defineMacro("__MPX__"); if (HasSHSTK) @@ -1297,6 +1303,7 @@ bool X86TargetInfo::isValidFeatureName(StringRef Name) const { .Case("tbm", true) .Case("vaes", true) .Case("vpclmulqdq", true) + .Case("wbnoinvd", true) .Case("x87", true) .Case("xop", true) .Case("xsave", true) @@ -1371,6 +1378,7 @@ bool X86TargetInfo::hasFeature(StringRef Feature) const { .Case("tbm", HasTBM) .Case("vaes", HasVAES) .Case("vpclmulqdq", HasVPCLMULQDQ) + .Case("wbnoinvd", HasWBNOINVD) .Case("x86", true) .Case("x86_32", getTriple().getArch() == llvm::Triple::x86) .Case("x86_64", getTriple().getArch() == llvm::Triple::x86_64) diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h index 91db1dfdf31..381a75757e8 100644 --- a/clang/lib/Basic/Targets/X86.h +++ b/clang/lib/Basic/Targets/X86.h @@ -100,6 +100,7 @@ class LLVM_LIBRARY_VISIBILITY X86TargetInfo : public TargetInfo { bool HasRetpoline = false; bool HasRetpolineExternalThunk = false; bool HasLAHFSAHF = false; + bool HasWBNOINVD = false; protected: /// \brief Enumeration of all of the X86 CPUs supported by Clang. |
