[X86] Remove 'umip' feature flag.

This feature flag indicates that the processor has support for removing certain instructions from user mode software. But the feature flag by itself doesn't indicate if the support is enabled in the OS. The affected instructions aren't even instructions the compiler would emit. So I don't think think this feature flag should be in the compiler.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294414 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index c0473a53762547cdd473d221bc6436f7691e0c38..e9f5416718ec96eefabbe93fc1b060151a728fd8 100644 (file)
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -2492,7 +2492,6 @@ class X86TargetInfo : public TargetInfo {
   bool HasPKU = false;
   bool HasCLFLUSHOPT = false;
   bool HasCLWB = false;
-  bool HasUMIP = false;
   bool HasMOVBE = false;
   bool HasPREFETCHWT1 = false;
 
@@ -3066,7 +3065,6 @@ bool X86TargetInfo::initFeatureMap(
     setFeatureEnabledImpl(Features, "avx512ifma", true);
     setFeatureEnabledImpl(Features, "avx512vbmi", true);
     setFeatureEnabledImpl(Features, "sha", true);
-    setFeatureEnabledImpl(Features, "umip", true);
     LLVM_FALLTHROUGH;
   case CK_SkylakeServer:
     setFeatureEnabledImpl(Features, "avx512f", true);
@@ -3560,8 +3558,6 @@ bool X86TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
       HasCLFLUSHOPT = true;
     } else if (Feature == "+clwb") {
       HasCLWB = true;
-    } else if (Feature == "+umip") {
-      HasUMIP = true;
     } else if (Feature == "+prefetchwt1") {
       HasPREFETCHWT1 = true;
     }
@@ -3999,7 +3995,6 @@ bool X86TargetInfo::hasFeature(StringRef Feature) const {
       .Case("sse4.2", SSELevel >= SSE42)
       .Case("sse4a", XOPLevel >= SSE4A)
       .Case("tbm", HasTBM)
-      .Case("umip", HasUMIP)
       .Case("x86", true)
       .Case("x86_32", getTriple().getArch() == llvm::Triple::x86)
       .Case("x86_64", getTriple().getArch() == llvm::Triple::x86_64)