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

[Simon Pilgrim via cfe-commits]

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@@ -139,20 +139,77 @@ enum ProcessorFeatures {
   FEATURE_AVX512BITALG,
   FEATURE_AVX512BF16,
   FEATURE_AVX512VP2INTERSECT,
+  FEATURE_3DNOW,
+  FEATURE_ADX = 40,
+  FEATURE_CLDEMOTE = 42,
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RKSimon wrote:

Maybe leave in a commented out entry to make that clear?

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