[llvm] Port CodeGenPrepare to new pass manager (and BasicBlockSectionsProfil… (PR #75380)

[Nick Anderson via llvm-commits]

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@@ -1963,6 +1965,9 @@ Error PassBuilder::parsePassPipeline(ModulePassManager &MPM,
       Pipeline = {{"cgscc", std::move(*Pipeline)}};
     } else if (isFunctionPassName(FirstName,
                                   FunctionPipelineParsingCallbacks)) {
+      if (FirstName == "codegenprepare") {
+        MPM.addPass(RequireAnalysisPass<ProfileSummaryAnalysis, Module>());
+      }
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nickleus27 wrote:

No, I don't think getResult will work. I think PSI needs to be pre-cached using `RequireAnalysisPass<ProfileSummaryAnalysis, Module>()` in the pipeline, because we cannot request a result from an outer-scope analysis. I was having a hard time finding the right place to conditionally require ProfileSummaryAnalysis in the pipeline, so I just used this hack here. Any suggestions would be appreciated.

https://github.com/llvm/llvm-project/pull/75380