Author: erichkeane Date: Mon Sep 10 14:12:21 2018 New Revision: 341862 URL: http://llvm.org/viewvc/llvm-project?rev=341862&view=rev Log: Move AESNI generation to Skylake and Goldmont
The instruction set first appeared with Westmere, but not all processors in that and the next few generations have the instructions. According to Wikipedia[1], the first generation in which all SKUs have AES instructions are Skylake and Goldmont. I can't find any Skylake, Kabylake, Kabylake-R or Cannon Lake currently listed at https://ark.intel.com that says "Intel® AES New Instructions" "No". This matches GCC commit https://gcc.gnu.org/ml/gcc-patches/2018-08/msg01940.html [1] https://en.wikipedia.org/wiki/AES_instruction_set Patch By: thiagomacieira Differential Revision: https://reviews.llvm.org/D51510 Modified: cfe/trunk/lib/Basic/Targets/X86.cpp Modified: cfe/trunk/lib/Basic/Targets/X86.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/X86.cpp?rev=341862&r1=341861&r2=341862&view=diff ============================================================================== --- cfe/trunk/lib/Basic/Targets/X86.cpp (original) +++ cfe/trunk/lib/Basic/Targets/X86.cpp Mon Sep 10 14:12:21 2018 @@ -170,6 +170,7 @@ bool X86TargetInfo::initFeatureMap( setFeatureEnabledImpl(Features, "sgx", true); setFeatureEnabledImpl(Features, "clflushopt", true); setFeatureEnabledImpl(Features, "rtm", true); + setFeatureEnabledImpl(Features, "aes", true); LLVM_FALLTHROUGH; case CK_Broadwell: setFeatureEnabledImpl(Features, "rdseed", true); @@ -196,7 +197,6 @@ bool X86TargetInfo::initFeatureMap( setFeatureEnabledImpl(Features, "xsaveopt", true); LLVM_FALLTHROUGH; case CK_Westmere: - setFeatureEnabledImpl(Features, "aes", true); setFeatureEnabledImpl(Features, "pclmul", true); LLVM_FALLTHROUGH; case CK_Nehalem: @@ -248,10 +248,10 @@ bool X86TargetInfo::initFeatureMap( setFeatureEnabledImpl(Features, "clflushopt", true); setFeatureEnabledImpl(Features, "mpx", true); setFeatureEnabledImpl(Features, "fsgsbase", true); + setFeatureEnabledImpl(Features, "aes", true); LLVM_FALLTHROUGH; case CK_Silvermont: setFeatureEnabledImpl(Features, "rdrnd", true); - setFeatureEnabledImpl(Features, "aes", true); setFeatureEnabledImpl(Features, "pclmul", true); setFeatureEnabledImpl(Features, "sse4.2", true); setFeatureEnabledImpl(Features, "prfchw", true); _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
