Author: ctopper
Date: Wed Feb 8 01:13:22 2017
New Revision: 294414
URL: http://llvm.org/viewvc/llvm-project?rev=294414&view=rev
Log:
[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.
Modified:
cfe/trunk/lib/Basic/Targets.cpp
Modified: cfe/trunk/lib/Basic/Targets.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=294414&r1=294413&r2=294414&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Wed Feb 8 01:13:22 2017
@@ -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
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
.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)
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