[llvm] [llvm-mca] Abort on parse error without -skip-unsupported-instructions (PR #90474)

[Peter Waller via llvm-commits]

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@@ -0,0 +1,14 @@
+# RUN: not llvm-mca %s -o /dev/null 2>&1 | FileCheck --check-prefixes=CHECK-ALL,CHECK %s
+# RUN: not llvm-mca -skip-unsupported-instructions=none %s -o /dev/null 2>&1 | FileCheck --check-prefixes=CHECK-ALL,CHECK %s
+# RUN: not llvm-mca -skip-unsupported-instructions=lack-sched %s -o /dev/null 2>&1 | FileCheck --check-prefixes=CHECK-ALL,CHECK %s
+# RUN: not llvm-mca -skip-unsupported-instructions=parse-failure %s -o /dev/null 2>&1 | FileCheck --check-prefixes=CHECK-ALL,CHECK-SKIP %s
+# RUN: not llvm-mca -skip-unsupported-instructions=any %s -o /dev/null 2>&1 | FileCheck --check-prefixes=CHECK-ALL,CHECK-SKIP %s
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peterwaller-arm wrote:

Not quite there. Looks like we can't rely on the default mcpu for bad inputs, since this fails if we run on a CPU for which there is no scheduling information.

So I've gone for supplying mtriple and mcpu for this case, committed in 458d70674190c4d043d5dfd2e41aecddff5cdb69.

https://github.com/llvm/llvm-project/pull/90474