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

[Phoebe Wang via cfe-commits]

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@@ -1155,6 +1155,34 @@ def ProcessorFeatures {
   list<SubtargetFeature> GNRDFeatures =
     !listconcat(GNRFeatures, GNRDAdditionalFeatures);
 
+  // Diamond Rapids
+  list<SubtargetFeature> DMRAdditionalFeatures = [FeatureAVX10_2_512,
+                                                  FeatureAMXCOMPLEX,
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phoebewang wrote:

`FeatureAMXCOMPLEX` alreay inherited from `GNRDFeatures`.

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