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

[Michael Maitland via llvm-commits]

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@@ -1,6 +1,22 @@
-# RUN: not llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 %s 2>&1 | FileCheck %s
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 -skip-unsupported-instructions %s |& FileCheck --check-prefix=CHECK-SKIP %s
+# RUN: not llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=btver2 %s |& FileCheck --check-prefix=CHECK-ERROR %s
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michaelmaitland wrote:

Can you please include `-timeline` option so we have coverage on how a skipped instruction is handled through that code path?

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