[clang] [compiler-rt] [llvm] [X86] Support -march=diamondrapids (PR #113881)

[Freddy Ye via cfe-commits]

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@@ -1139,6 +1139,28 @@ def ProcessorFeatures {
   list<SubtargetFeature> GNRDFeatures =
     !listconcat(GNRFeatures, GNRDAdditionalFeatures);
 
+  // Diamondrapids
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FreddyLeaf wrote:

[52e63a0](https://github.com/llvm/llvm-project/pull/113881/commits/52e63a0f4b48ad106471343f2f48976bd9b84661)

https://github.com/llvm/llvm-project/pull/113881