[llvm] [PGO] Add `llvm.loop.estimated_trip_count` metadata (PR #148758)

[Joel E. Denny via llvm-commits]

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@@ -131,31 +134,43 @@
 ; CHECK-O-NEXT: Running analysis: OuterAnalysisManagerProxy
 ; CHECK-EP-PEEPHOLE-NEXT: Running pass: NoOpFunctionPass
 ; CHECK-O-NEXT: Running pass: SimplifyCFGPass
+; CHECK-O-NEXT: Running pass: PGOEstimateTripCountsPass
+; CHECK-O-NEXT: Running analysis: LoopAnalysis
+; CHECK-O-NEXT: Invalidating analysis: InnerAnalysisManagerProxy
 ; CHECK-O-NEXT: Running pass: AlwaysInlinerPass
+; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
 ; CHECK-O-NEXT: Running analysis: ProfileSummaryAnalysis
 ; CHECK-O-NEXT: Running pass: ModuleInlinerWrapperPass
 ; CHECK-O-NEXT: Running analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}GlobalsAA
 ; CHECK-O-NEXT: Running analysis: GlobalsAA
 ; CHECK-O-NEXT: Running analysis: CallGraphAnalysis
 ; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}AAManager
-; CHECK-O-NEXT: Invalidating analysis: AAManager
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ProfileSummaryAnalysis
 ; CHECK-O-NEXT: Running analysis: InnerAnalysisManagerProxy
 ; CHECK-O-NEXT: Running analysis: LazyCallGraphAnalysis
+; CHECK-O-NEXT: Running analysis: TargetLibraryAnalysis
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jdenny-ornl wrote:

Thanks.  Converting it a function pass as you suggested indeed made the diff much smaller.

https://github.com/llvm/llvm-project/pull/148758