[X86] Remove 'rtm' feature from KNL.

I'm unsure if KNL has this feature, but the backend never thought it did, only clang did. The predefined-arch-macros test lost the check for __RTM__ on KNL when it was removed Skylake CPUs in r344117.

I think we want to drop it from KNL for consistency with Skylake anyway regardless of how we got here.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@344978 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Basic/Targets/X86.cpp b/lib/Basic/Targets/X86.cpp
index 1223e863ed43dfc458e2b5c42e5c7aa8a14151b5..467eb55f44c71e4bab0f0c43d18d04db15bd655c 100644 (file)
--- a/lib/Basic/Targets/X86.cpp
+++ b/lib/Basic/Targets/X86.cpp
@@ -280,7 +280,6 @@ bool X86TargetInfo::initFeatureMap(
     setFeatureEnabledImpl(Features, "lzcnt", true);
     setFeatureEnabledImpl(Features, "bmi", true);
     setFeatureEnabledImpl(Features, "bmi2", true);
-    setFeatureEnabledImpl(Features, "rtm", true);
     setFeatureEnabledImpl(Features, "fma", true);
     setFeatureEnabledImpl(Features, "rdrnd", true);
     setFeatureEnabledImpl(Features, "f16c", true);