[llvm] [clang-tools-extra] [compiler-rt] [clang] [X86] Support more ISAs to enable __builtin_cpu_supports (PR #79086)

[Phoebe Wang via cfe-commits]

================
@@ -139,20 +139,88 @@ enum ProcessorFeatures {
   FEATURE_AVX512BITALG,
   FEATURE_AVX512BF16,
   FEATURE_AVX512VP2INTERSECT,
-
-  FEATURE_CMPXCHG16B = 46,
-  FEATURE_F16C = 49,
+  // FIXME: Below Features has some missings comparing to gcc, it's because gcc
+  // has some not one-to-one mapped in llvm.
+  FEATURE_3DNOW,
+  // FEATURE_3DNOWP,
+  FEATURE_ADX = 40,
+  // FEATURE_ABM,
+  FEATURE_CLDEMOTE = 42,
+  FEATURE_CLFLUSHOPT,
+  FEATURE_CLWB,
+  FEATURE_CLZERO,
+  FEATURE_CMPXCHG16B,
+  // FIXME: Not adding FEATURE_CMPXCHG8B is a workaround to make 'generic' as
+  // a cpu string with no X86_FEATURE_COMPAT features, which is required in
+  // current implementantion of cpu_specific/cpu_dispatch FMV feature.
+  // FEATURE_CMPXCHG8B,
+  FEATURE_ENQCMD = 48,
+  FEATURE_F16C,
+  FEATURE_FSGSBASE,
+  // FEATURE_FXSAVE,
+  // FEATURE_HLE,
+  // FEATURE_IBT,
   FEATURE_LAHF_LM = 54,
   FEATURE_LM,
-  FEATURE_WP,
+  FEATURE_LWP,
   FEATURE_LZCNT,
   FEATURE_MOVBE,
-
-  FEATURE_AVX512FP16 = 94,
+  FEATURE_MOVDIR64B,
+  FEATURE_MOVDIRI,
+  FEATURE_MWAITX,
+  // FEATURE_OSXSAVE,
+  FEATURE_PCONFIG = 63,
+  FEATURE_PKU,
+  FEATURE_PREFETCHWT1,
+  FEATURE_PRFCHW,
+  FEATURE_PTWRITE,
+  FEATURE_RDPID,
+  FEATURE_RDRND,
+  FEATURE_RDSEED,
+  FEATURE_RTM,
+  FEATURE_SERIALIZE,
+  FEATURE_SGX,
+  FEATURE_SHA,
+  FEATURE_SHSTK,
+  FEATURE_TBM,
+  FEATURE_TSXLDTRK,
+  FEATURE_VAES,
+  FEATURE_WAITPKG,
+  FEATURE_WBNOINVD,
+  FEATURE_XSAVE,
+  FEATURE_XSAVEC,
+  FEATURE_XSAVEOPT,
+  FEATURE_XSAVES,
+  FEATURE_AMX_TILE,
+  FEATURE_AMX_INT8,
+  FEATURE_AMX_BF16,
+  FEATURE_UINTR,
+  FEATURE_HRESET,
+  FEATURE_KL,
+  // FEATURE_AESKLE,
+  FEATURE_WIDEKL = 92,
+  FEATURE_AVXVNNI,
+  FEATURE_AVX512FP16,
   FEATURE_X86_64_BASELINE,
   FEATURE_X86_64_V2,
   FEATURE_X86_64_V3,
   FEATURE_X86_64_V4,
+  FEATURE_AVXIFMA,
+  FEATURE_AVXVNNIINT8,
+  FEATURE_AVXNECONVERT,
+  FEATURE_CMPCCXADD,
+  FEATURE_AMX_FP16,
+  FEATURE_PREFETCHI,
+  FEATURE_RAOINT,
+  FEATURE_AMX_COMPLEX,
+  FEATURE_AVXVNNIINT16,
+  FEATURE_SM3,
+  FEATURE_SHA512,
+  FEATURE_SM4,
+  // FEATURE_APX_F,
+  FEATURE_USERMSR = 112,
+  // FEATURE_AVX10_1_256,
+  // FEATURE_AVX10_1_512,
----------------
phoebewang wrote:

Why comments them? We have APX and AVX10 support.

https://github.com/llvm/llvm-project/pull/79086