[clang] [llvm] [AArch64] Add FEAT_FPAC to Grace (PR #133054)

[Sjoerd Meijer via llvm-commits]

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@@ -1067,7 +1067,8 @@ def ProcessorFeatures {
                                      FeatureDotProd, FeatureFPARMv8, FeatureMatMulInt8,
                                      FeatureSSBS, FeatureCCIDX,
                                      FeatureJS, FeatureLSE, FeatureRAS, FeatureRCPC, FeatureRDM];
-  list<SubtargetFeature> Grace = !listconcat(NeoverseV2, [FeatureSVE2SM4, FeatureSVEAES, FeatureSVE2SHA3]);
+  list<SubtargetFeature> Grace = !listconcat(NeoverseV2, [FeatureSVE2SM4, FeatureSVEAES, FeatureSVE2SHA3,
+                                                          FeatureFPAC]);
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sjoerdmeijer wrote:

Thanks for spotting this, I think you're right.  I got confused with "supported", thinking about this architecturally, but this is in the V2 TRM, so all V2 cores implement this. I will move this to the V2.

https://github.com/llvm/llvm-project/pull/133054