[clang] [llvm] [X86] Support apxf in attribute target (PR #184078)

[Phoebe Wang via cfe-commits]

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@@ -185,3 +185,17 @@ int __attribute__((target("default"))) no_priority3(void);
 int __attribute__((target("avx2"))) no_priority3(void);
 // expected-error at +1 {{function multiversioning doesn't support feature 'sha'}}
 int __attribute__((target("sha"))) no_priority3(void);
+
+int __attribute__((target("default"))) apxf_mv(void) { return 0; }
+int __attribute__((target("apxf"))) apxf_mv(void) { return 1; }
+
+int __attribute__((target("default"))) apx_sub(void);
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phoebewang wrote:

Missing `expected-note`?

https://github.com/llvm/llvm-project/pull/184078