[llvm] [LLVM-Reduce] - Distinct Metadata Reduction (PR #96072)

[Matt Arsenault via llvm-commits]

================
@@ -1,8 +1,8 @@
-; RUN: llvm-reduce --abort-on-invalid-reduction --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t
+; RUN: llvm-reduce --test FileCheck --test-arg --check-prefixes=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t
----------------
arsenm wrote:

The main reason this checks for understood metadata is to avoid hitting verifier errors in out of tree verifiers. We need to know the expected structure of the node to not break whatever other code is expecting 

https://github.com/llvm/llvm-project/pull/96072