[llvm] [llvm-mca] Add -skip-unsupported-instructions option (PR #89733)

[Peter Waller via llvm-commits]

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@@ -0,0 +1,22 @@
+# RUN: llvm-mca -march=aarch64 -mcpu=neoverse-v2 -skip-unsupported-instructions %s |& FileCheck --check-prefix=CHECK-SKIP %s
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peterwaller-arm wrote:

The previous version of the commit [cd801c3](https://github.com/llvm/llvm-project/commit/cd801c3b94bb7b2688d171c9fc97213118c34200) removed the x86 test, I intended to extend the original x86 test and remove the new test, which I've now done.

https://github.com/llvm/llvm-project/pull/89733