Author: ctopper Date: Thu Dec 28 22:39:16 2017 New Revision: 321547 URL: http://llvm.org/viewvc/llvm-project?rev=321547&view=rev Log: Revert r321504 "[X86] Don't accidentally enable PKU on cannon lake and icelake or CLWB on cannonlake."
I based that commit on what was in Intel's public documentation here https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf Which specifically said CLWB wasn't until Icelake. But I've since cross checked with SDE and it thinks these features exist on CNL and ICL. So now I don't know what to believe. I've added test coverage of the current behavior as part of the revert so at least now have proof of what we're doing. Modified: cfe/trunk/lib/Basic/Targets/X86.cpp cfe/trunk/test/Preprocessor/predefined-arch-macros.c Modified: cfe/trunk/lib/Basic/Targets/X86.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/X86.cpp?rev=321547&r1=321546&r2=321547&view=diff ============================================================================== --- cfe/trunk/lib/Basic/Targets/X86.cpp (original) +++ cfe/trunk/lib/Basic/Targets/X86.cpp Thu Dec 28 22:39:16 2017 @@ -139,7 +139,6 @@ bool X86TargetInfo::initFeatureMap( setFeatureEnabledImpl(Features, "avx512vnni", true); setFeatureEnabledImpl(Features, "avx512vbmi2", true); setFeatureEnabledImpl(Features, "avx512vpopcntdq", true); - setFeatureEnabledImpl(Features, "clwb", true); LLVM_FALLTHROUGH; case CK_Cannonlake: setFeatureEnabledImpl(Features, "avx512ifma", true); @@ -152,10 +151,8 @@ bool X86TargetInfo::initFeatureMap( setFeatureEnabledImpl(Features, "avx512dq", true); setFeatureEnabledImpl(Features, "avx512bw", true); setFeatureEnabledImpl(Features, "avx512vl", true); - if (Kind == CK_SkylakeServer) { - setFeatureEnabledImpl(Features, "pku", true); - setFeatureEnabledImpl(Features, "clwb", true); - } + setFeatureEnabledImpl(Features, "pku", true); + setFeatureEnabledImpl(Features, "clwb", true); LLVM_FALLTHROUGH; case CK_SkylakeClient: setFeatureEnabledImpl(Features, "xsavec", true); Modified: cfe/trunk/test/Preprocessor/predefined-arch-macros.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/predefined-arch-macros.c?rev=321547&r1=321546&r2=321547&view=diff ============================================================================== --- cfe/trunk/test/Preprocessor/predefined-arch-macros.c (original) +++ cfe/trunk/test/Preprocessor/predefined-arch-macros.c Thu Dec 28 22:39:16 2017 @@ -972,14 +972,14 @@ // CHECK_CNL_M32: #define __BMI2__ 1 // CHECK_CNL_M32: #define __BMI__ 1 // CHECK_CNL_M32: #define __CLFLUSHOPT__ 1 -// CHECK_CNL_M32-NOT: #define __CLWB__ 1 +// CHECK_CNL_M32: #define __CLWB__ 1 // CHECK_CNL_M32: #define __F16C__ 1 // CHECK_CNL_M32: #define __FMA__ 1 // CHECK_CNL_M32: #define __LZCNT__ 1 // CHECK_CNL_M32: #define __MMX__ 1 // CHECK_CNL_M32: #define __MPX__ 1 // CHECK_CNL_M32: #define __PCLMUL__ 1 -// CHECK_CNL_M32-NOT: #define __PKU__ 1 +// CHECK_CNL_M32: #define __PKU__ 1 // CHECK_CNL_M32: #define __POPCNT__ 1 // CHECK_CNL_M32: #define __PRFCHW__ 1 // CHECK_CNL_M32: #define __RDRND__ 1 @@ -1019,14 +1019,14 @@ // CHECK_CNL_M64: #define __BMI2__ 1 // CHECK_CNL_M64: #define __BMI__ 1 // CHECK_CNL_M64: #define __CLFLUSHOPT__ 1 -// CHECK_CNL_M64-NOT: #define __CLWB__ 1 +// CHECK_CNL_M64: #define __CLWB__ 1 // CHECK_CNL_M64: #define __F16C__ 1 // CHECK_CNL_M64: #define __FMA__ 1 // CHECK_CNL_M64: #define __LZCNT__ 1 // CHECK_CNL_M64: #define __MMX__ 1 // CHECK_CNL_M64: #define __MPX__ 1 // CHECK_CNL_M64: #define __PCLMUL__ 1 -// CHECK_CNL_M64-NOT: #define __PKU__ 1 +// CHECK_CNL_M64: #define __PKU__ 1 // CHECK_CNL_M64: #define __POPCNT__ 1 // CHECK_CNL_M64: #define __PRFCHW__ 1 // CHECK_CNL_M64: #define __RDRND__ 1 @@ -1079,7 +1079,7 @@ // CHECK_ICL_M32: #define __MMX__ 1 // CHECK_ICL_M32: #define __MPX__ 1 // CHECK_ICL_M32: #define __PCLMUL__ 1 -// CHECK_ICL_M32-NOT: #define __PKU__ 1 +// CHECK_ICL_M32: #define __PKU__ 1 // CHECK_ICL_M32: #define __POPCNT__ 1 // CHECK_ICL_M32: #define __PRFCHW__ 1 // CHECK_ICL_M32: #define __RDRND__ 1 @@ -1133,7 +1133,7 @@ // CHECK_ICL_M64: #define __MMX__ 1 // CHECK_ICL_M64: #define __MPX__ 1 // CHECK_ICL_M64: #define __PCLMUL__ 1 -// CHECK_ICL_M64-NOT: #define __PKU__ 1 +// CHECK_ICL_M64: #define __PKU__ 1 // CHECK_ICL_M64: #define __POPCNT__ 1 // CHECK_ICL_M64: #define __PRFCHW__ 1 // CHECK_ICL_M64: #define __RDRND__ 1 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
