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llvm-mirror/test/Other/loop-pm-invalidation.ll
Eric Christopher 7b8d4f4b37 Temporarily Revert "[New PM] Introducing PassInstrumentation framework" 
as it was causing failures in the asan buildbot.

This reverts commit r342597.

llvm-svn: 342616
2018-09-20 05:16:29 +00:00

350 lines
19 KiB
LLVM
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; Test that the loop PM infrastructure is invalidated appropriately.
;
; Check that we always nuke the LPM stuff when the loops themselves are
; invalidated.
; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
; RUN: -passes='loop(no-op-loop),invalidate<loops>,loop(no-op-loop)' \
; RUN: | FileCheck %s --check-prefix=CHECK-LOOP-INV
;
; If we ended up building the standard analyses, their invalidation should nuke
; stuff as well.
; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
; RUN: -passes='loop(no-op-loop),invalidate<scalar-evolution>,loop(no-op-loop)' \
; RUN: | FileCheck %s --check-prefix=CHECK-SCEV-INV
;
; Also provide a test that can delete loops after populating analyses for them.
; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
; RUN: -passes='loop(no-op-loop,loop-deletion),invalidate<scalar-evolution>,loop(no-op-loop)' \
; RUN: | FileCheck %s --check-prefix=CHECK-SCEV-INV-AFTER-DELETE
define void @no_loops() {
; CHECK-LOOP-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on no_loops
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}LoopAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-LOOP-INV-NEXT: Invalidating analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on no_loops
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run.
;
; CHECK-SCEV-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on no_loops
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-SCEV-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on no_loops
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run.
entry:
ret void
}
define void @one_loop(i1* %ptr) {
; CHECK-LOOP-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on one_loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running analysis: AAManager
; CHECK-LOOP-INV-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: TargetIRAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}LoopAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-LOOP-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-LOOP-INV-NEXT: Invalidating analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on one_loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run.
;
; CHECK-SCEV-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on one_loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running analysis: AAManager
; CHECK-SCEV-INV-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: TargetIRAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-SCEV-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-SCEV-INV-NEXT: Invalidating analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on one_loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run.
entry:
br label %l0.header
l0.header:
%flag0 = load volatile i1, i1* %ptr
br i1 %flag0, label %l0.header, label %exit
exit:
ret void
}
define void @nested_loops(i1* %ptr) {
; CHECK-LOOP-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on nested_loops
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running analysis: AAManager
; CHECK-LOOP-INV-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: TargetIRAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}LoopAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-LOOP-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-LOOP-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-LOOP-INV-NEXT: Invalidating analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on nested_loops
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run.
;
; CHECK-SCEV-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on nested_loops
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running analysis: AAManager
; CHECK-SCEV-INV-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: TargetIRAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-SCEV-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-SCEV-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-SCEV-INV-NEXT: Invalidating analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on nested_loops
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run.
entry:
br label %l.0.header
l.0.header:
br label %l.0.0.header
l.0.0.header:
%flag.0.0 = load volatile i1, i1* %ptr
br i1 %flag.0.0, label %l.0.0.header, label %l.0.latch
l.0.latch:
%flag.0 = load volatile i1, i1* %ptr
br i1 %flag.0, label %l.0.header, label %exit
exit:
ret void
}
define void @dead_loop() {
; CHECK-LOOP-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on dead_loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running analysis: AAManager
; CHECK-LOOP-INV-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: TargetIRAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}LoopAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-LOOP-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-LOOP-INV-NEXT: Invalidating analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on dead_loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-LOOP-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-LOOP-INV-NEXT: Running pass: LCSSAPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-LOOP-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-LOOP-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-LOOP-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-LOOP-INV-NEXT: Finished {{.*}}Function pass manager run.
;
; CHECK-SCEV-INV-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on dead_loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running analysis: LoopAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: AssumptionAnalysis
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running analysis: AAManager
; CHECK-SCEV-INV-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: TargetIRAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Invalidating all non-preserved analyses
; CHECK-SCEV-INV-NEXT: Clearing all analysis results for: <possibly invalidated loop>
; CHECK-SCEV-INV-NEXT: Invalidating analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on dead_loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-NEXT: Finished {{.*}}Function pass manager run.
;
; CHECK-SCEV-INV-AFTER-DELETE-LABEL: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on dead_loop
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: LoopAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: DominatorTreeAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: AssumptionAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: AAManager
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: TargetLibraryAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: TargetIRAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Starting {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: NoOpLoopPass
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: LoopDeletionPass
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Clearing all analysis results for:
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Finished {{.*}}Loop pass manager run.
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Invalidating all non-preserved analyses
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: InvalidateAnalysisPass<{{.*}}ScalarEvolutionAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Invalidating all non-preserved analyses
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Invalidating analysis: ScalarEvolutionAnalysis
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Invalidating analysis: InnerAnalysisManagerProxy<{{.*}}Loop
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: FunctionToLoopPassAdaptor<{{.*}}> on dead_loop
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Starting {{.*}}Function pass manager run
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: LoopSimplifyPass
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Running pass: LCSSAPass
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Finished {{.*}}Function pass manager run
; CHECK-SCEV-INV-AFTER-DELETE-NEXT: Finished {{.*}}Function pass manager run.
entry:
br label %l0.header
l0.header:
br i1 false, label %l0.header, label %exit
exit:
ret void
}
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