[Pipelines][Coroutines] Tune coroutine passes only for ThinLTO pre-link pipeline (#90690)

Follow up to #90310, limit the tune up only to ThinLTO pre-link as
coroutine passes are not in MonoLTO backend

Author: apolloww

llvm/lib/Passes/PassBuilderPipelines.cpp

@@ -963,7 +963,7 @@ PassBuilder::buildInlinerPipeline(OptimizationLevel Level,
   MainCGPipeline.addPass(createCGSCCToFunctionPassAdaptor(
       RequireAnalysisPass<ShouldNotRunFunctionPassesAnalysis, Function>()));
 
-  if (!isLTOPreLink(Phase))
+  if (Phase != ThinOrFullLTOPhase::ThinLTOPreLink)
     MainCGPipeline.addPass(CoroSplitPass(Level != OptimizationLevel::O0));
 
   // Make sure we don't affect potential future NoRerun CGSCC adaptors.
@@ -1006,7 +1006,7 @@ PassBuilder::buildModuleInlinerPipeline(OptimizationLevel Level,
       buildFunctionSimplificationPipeline(Level, Phase),
       PTO.EagerlyInvalidateAnalyses));
 
-  if (!isLTOPreLink(Phase))
+  if (Phase != ThinOrFullLTOPhase::ThinLTOPreLink)
     MPM.addPass(createModuleToPostOrderCGSCCPassAdaptor(
         CoroSplitPass(Level != OptimizationLevel::O0)));
 
@@ -1185,7 +1185,7 @@ PassBuilder::buildModuleSimplificationPipeline(OptimizationLevel Level,
   // and argument promotion.
   MPM.addPass(DeadArgumentEliminationPass());
 
-  if (!isLTOPreLink(Phase))
+  if (Phase != ThinOrFullLTOPhase::ThinLTOPreLink)
     MPM.addPass(CoroCleanupPass());
 
   // Optimize globals now that functions are fully simplified.

llvm/test/Other/new-pm-defaults.ll

@@ -224,14 +224,12 @@
 ; CHECK-O-NEXT: Running pass: PostOrderFunctionAttrsPass
 ; CHECK-O-NEXT: Running pass: RequireAnalysisPass<{{.*}}ShouldNotRunFunctionPassesAnalysis
 ; CHECK-O-NEXT: Running analysis: ShouldNotRunFunctionPassesAnalysis
-; CHECK-DEFAULT-NEXT: Running pass: CoroSplitPass
-; CHECK-LTO-NOT: Running pass: CoroSplitPass
+; CHECK-O-NEXT: Running pass: CoroSplitPass
 ; CHECK-O-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ShouldNotRunFunctionPassesAnalysis
 ; CHECK-O-NEXT: Invalidating analysis: ShouldNotRunFunctionPassesAnalysis
 ; CHECK-O-NEXT: Invalidating analysis: InlineAdvisorAnalysis
 ; CHECK-O-NEXT: Running pass: DeadArgumentEliminationPass
-; CHECK-DEFAULT-NEXT: Running pass: CoroCleanupPass
-; CHECK-LTO-NOT: Running pass: CoroCleanupPass
+; CHECK-O-NEXT: Running pass: CoroCleanupPass
 ; CHECK-O-NEXT: Running pass: GlobalOptPass
 ; CHECK-O-NEXT: Running pass: GlobalDCEPass
 ; CHECK-DEFAULT-NEXT: Running pass: EliminateAvailableExternallyPass