[clang] [llvm] [AArch64] Add initial support for -mcpu=olympus. (PR #132368)

[David Green via cfe-commits]

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@@ -872,6 +883,16 @@ def ProcessorFeatures {
   list<SubtargetFeature> Carmel   = [HasV8_2aOps, FeatureNEON, FeatureSHA2, 
FeatureAES,
                                      FeatureFullFP16, FeatureCRC, FeatureLSE, 
FeatureRAS, FeatureRDM,
                                      FeatureFPARMv8];
+  list<SubtargetFeature> Olympus = [HasV9_2aOps, FeatureBRBE, FeatureCCIDX,
+                                    FeatureCHK, FeatureCrypto, FeatureETE,
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davemgreen wrote:

I believe it is better here to use the expanded features, over FeatureCrypto.

https://github.com/llvm/llvm-project/pull/132368
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