[clang] [Clang] Amend SME attributes with support for ZT0. (PR #77941)

[Erich Keane via cfe-commits]

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@@ -4068,7 +4075,7 @@ class FunctionType : public Type {
 
     /// Any AArch64 SME ACLE type attributes that need to be propagated
     /// on declarations and function pointers.
-    unsigned AArch64SMEAttributes : 6;
+    unsigned AArch64SMEAttributes : 8;
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erichkeane wrote:

Note that doing so is perhaps a breaking change for users, it DOES put us right up at 'imp-limits', but it is entirely possible that users are counting on us exceeding the minimum here.  And this is a reduction to a 'reasonable' number.

https://github.com/llvm/llvm-project/pull/77941