[X86] Add fxsr feature name for fxsave/fxrestore builtins.

llvm-svn: 250498

1 files changed, 18 insertions, 0 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index dcf2271a4a1..b38b4e0c6cd 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -2094,6 +2094,7 @@ class X86TargetInfo : public TargetInfo {
   bool HasAVX512VL = false;
   bool HasSHA = false;
   bool HasCX16 = false;
+  bool HasFXSR = false;
   bool HasXSAVE = false;
   bool HasXSAVEOPT = false;
   bool HasXSAVEC = false;
@@ -2557,26 +2558,31 @@ bool X86TargetInfo::initFeatureMap(
   case CK_Pentium3M:
   case CK_C3_2:
     setFeatureEnabledImpl(Features, "sse", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     break;
   case CK_PentiumM:
   case CK_Pentium4:
   case CK_Pentium4M:
   case CK_x86_64:
     setFeatureEnabledImpl(Features, "sse2", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     break;
   case CK_Yonah:
   case CK_Prescott:
   case CK_Nocona:
     setFeatureEnabledImpl(Features, "sse3", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     setFeatureEnabledImpl(Features, "cx16", true);
     break;
   case CK_Core2:
   case CK_Bonnell:
     setFeatureEnabledImpl(Features, "ssse3", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     setFeatureEnabledImpl(Features, "cx16", true);
     break;
   case CK_Penryn:
     setFeatureEnabledImpl(Features, "sse4.1", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     setFeatureEnabledImpl(Features, "cx16", true);
     break;
   case CK_Skylake:
@@ -2617,6 +2623,7 @@ bool X86TargetInfo::initFeatureMap(
     // FALLTHROUGH
   case CK_Nehalem:
     setFeatureEnabledImpl(Features, "sse4.2", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     setFeatureEnabledImpl(Features, "cx16", true);
     break;
   case CK_KNL:
@@ -2624,6 +2631,7 @@ bool X86TargetInfo::initFeatureMap(
     setFeatureEnabledImpl(Features, "avx512cd", true);
     setFeatureEnabledImpl(Features, "avx512er", true);
     setFeatureEnabledImpl(Features, "avx512pf", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     setFeatureEnabledImpl(Features, "rdseed", true);
     setFeatureEnabledImpl(Features, "adx", true);
     setFeatureEnabledImpl(Features, "lzcnt", true);
@@ -2656,6 +2664,7 @@ bool X86TargetInfo::initFeatureMap(
   case CK_AthlonMP:
     setFeatureEnabledImpl(Features, "sse", true);
     setFeatureEnabledImpl(Features, "3dnowa", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     break;
   case CK_K8:
   case CK_Opteron:
@@ -2663,6 +2672,7 @@ bool X86TargetInfo::initFeatureMap(
   case CK_AthlonFX:
     setFeatureEnabledImpl(Features, "sse2", true);
     setFeatureEnabledImpl(Features, "3dnowa", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     break;
   case CK_AMDFAM10:
     setFeatureEnabledImpl(Features, "sse4a", true);
@@ -2674,6 +2684,7 @@ bool X86TargetInfo::initFeatureMap(
   case CK_Athlon64SSE3:
     setFeatureEnabledImpl(Features, "sse3", true);
     setFeatureEnabledImpl(Features, "3dnowa", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     break;
   case CK_BTVER2:
     setFeatureEnabledImpl(Features, "avx", true);
@@ -2690,6 +2701,7 @@ bool X86TargetInfo::initFeatureMap(
     setFeatureEnabledImpl(Features, "popcnt", true);
     setFeatureEnabledImpl(Features, "prfchw", true);
     setFeatureEnabledImpl(Features, "cx16", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     setFeatureEnabledImpl(Features, "xsave", true);
     break;
   case CK_BDVER4:
@@ -2714,6 +2726,7 @@ bool X86TargetInfo::initFeatureMap(
     setFeatureEnabledImpl(Features, "pclmul", true);
     setFeatureEnabledImpl(Features, "prfchw", true);
     setFeatureEnabledImpl(Features, "cx16", true);
+    setFeatureEnabledImpl(Features, "fxsr", true);
     setFeatureEnabledImpl(Features, "xsave", true);
     break;
   }
@@ -2995,6 +3008,8 @@ bool X86TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
       HasSHA = true;
     } else if (Feature == "+cx16") {
       HasCX16 = true;
+    } else if (Feature == "+fxsr") {
+      HasFXSR = true;
     } else if (Feature == "+xsave") {
       HasXSAVE = true;
     } else if (Feature == "+xsaveopt") {
@@ -3295,6 +3310,8 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
   if (HasSHA)
     Builder.defineMacro("__SHA__");
 
+  if (HasFXSR)
+    Builder.defineMacro("__FXSR__");
   if (HasXSAVE)
     Builder.defineMacro("__XSAVE__");
   if (HasXSAVEOPT)
@@ -3393,6 +3410,7 @@ bool X86TargetInfo::hasFeature(StringRef Feature) const {
       .Case("fma", HasFMA)
       .Case("fma4", XOPLevel >= FMA4)
       .Case("fsgsbase", HasFSGSBASE)
+      .Case("fxsr", HasFXSR)
       .Case("lzcnt", HasLZCNT)
       .Case("mm3dnow", MMX3DNowLevel >= AMD3DNow)
       .Case("mm3dnowa", MMX3DNowLevel >= AMD3DNowAthlon)