[llvm] Changed stat passes to count instructions before and after optimizations (PR #188837)

[Arthur Eubanks via llvm-commits]

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@@ -0,0 +1,25 @@
+; REQUIRES: asserts
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aeubanks wrote:

imo we should have one test that tests some basic properties work with the pipelines (pre and post optimization), and then one test that tests the more detailed properties, perhaps with just `-passes=require<func-properties>` instead of an entire pipeline

https://github.com/llvm/llvm-project/pull/188837