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llvm-mirror/test/Other/loop-pm-invalidation.ll
Arthur Eubanks cdf50f8461 [NewPM][opt] Run the "default" AA pipeline by default
We tend to assume that the AA pipeline is by default the default AA
pipeline and it's confusing when it's empty instead.

PR48779

Initially reverted due to BasicAA running analyses in an unspecified
order (multiple function calls as parameters), fixed by fetching
analyses before the call to construct BasicAA.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D95117
2021-01-21 21:08:54 -08:00

329 lines
17 KiB
LLVM

; 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 -aa-pipeline= %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 -aa-pipeline= 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 -aa-pipeline= 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: Starting {{.*}}Function pass manager run
; 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 analysis: LoopAnalysis
; 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: Starting {{.*}}Function pass manager run
; 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: 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: Starting {{.*}}Function pass manager run
; 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: 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: 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: Starting {{.*}}Function pass manager run
; 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: 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: 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: Starting {{.*}}Function pass manager run
; 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: 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: 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: Starting {{.*}}Function pass manager run
; 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: 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: 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: Starting {{.*}}Function pass manager run
; 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: 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: 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: Starting {{.*}}Function pass manager run
; 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: 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: 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: LoopSimplifyPass on dead_loop
; 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: Running pass: InvalidateAnalysisPass<{{.*}}ScalarEvolutionAnalysis
; 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: 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
}