[llvm] [llvm-exegesis] Skip benchmark entries with unknown opcodes in analysis mode (PR #201162)

[Aiden Grossman via llvm-commits]

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@@ -0,0 +1,74 @@
+# Verify that in analysis mode an entry referencing an unknown opcode (e.g. a
+# sample that has bitrotted due to instruction renaming) is skipped with a
+# warning instead of aborting, and that the remaining valid entries are still
+# analyzed.
+
+# RUN: llvm-exegesis -mode=analysis -benchmarks-file=%s -analysis-clusters-output-file=- -analysis-clustering-epsilon=0.1 -analysis-inconsistency-epsilon=0.1 -analysis-numpoints=1 -analysis-clustering=naive 2> %t.err | FileCheck -check-prefix=CHECK-CLUSTERS %s
+# RUN: FileCheck -check-prefix=CHECK-WARN %s < %t.err
+
+# CHECK-WARN: warning: skipping benchmark entry: No opcode with name 'NOT_A_REAL_OPCODE'
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boomanaiden154 wrote:

No check at the end for the number of skipped entries?

https://github.com/llvm/llvm-project/pull/201162