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

[Arthur Eubanks via llvm-commits]

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@@ -2317,6 +2349,9 @@ PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level,
   // Emit annotation remarks.
   addAnnotationRemarksPass(MPM);
 
+  // Count instruction types after optimization
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aeubanks wrote:

comment is redundant with the function call name

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