[llvm] [AArch64] Disable Xor merging for certain neoverse cores (PR #165393)

[David Green via llvm-commits]

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@@ -1081,7 +1081,8 @@ def ProcessorFeatures {
                                        FeatureCCIDX,
                                        FeatureDotProd, FeatureFullFP16, FeatureSB, FeatureSSBS, FeatureSVE,
                                        FeatureComplxNum, FeatureCRC, FeatureFPARMv8, FeatureJS, FeatureLSE,
-                                       FeatureNEON, FeaturePAuth, FeatureRAS, FeatureRCPC, FeatureRDM, FeatureFPAC];
+                                       FeatureNEON, FeaturePAuth, FeatureRAS, FeatureRCPC, FeatureRDM, FeatureFPAC,
+                                       FeatureDisableXorMerge];
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davemgreen wrote:

This is conflating architecture features with tuning features.

https://github.com/llvm/llvm-project/pull/165393