[clang] [llvm] [AArch64] Introduce new armv9.6 features (PR #111677)

[via cfe-commits]

================
@@ -522,6 +522,39 @@ def FeatureTLBIW : ExtensionWithMArch<"tlbiw", "TLBIW", "FEAT_TLBIW",
 //  Armv9.6 Architecture Extensions
 //===----------------------------------------------------------------------===//
 
+def FeatureCMPBR : ExtensionWithMArch<"cmpbr", "CMPBR", "FEAT_CMPBR",
+  "Enable A64 base compare and branch instructions">;
+
+def FeatureF8F32MM: ExtensionWithMArch<"f8f32mm", "F8F32MM", "FEAT_F8F32MM",
+  "Enable FP8 to Single-Precision Matrix Multiplication", [FeatureFP8DOT4]>;
+
+def FeatureF8F16MM: ExtensionWithMArch<"f8f16mm", "F8F16MM", "FEAT_F8F16MM",
+  "Enable FP8 to Half-Precision Matrix Multiplication", [FeatureFP8DOT2, FeatureF8F32MM]>;
----------------
CarolineConcatto wrote:

I am not sure this is correct @jthackray. I believe FEAT_F8F16MM is not mandatory in armv9.6

https://github.com/llvm/llvm-project/pull/111677