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TheRock/compiler/amd-llvm/llvm/test/Transforms/LoopRotate/pr35210.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

99 lines
4.4 KiB
LLVM

;RUN: opt %s -aa-pipeline= -passes='adce,loop(loop-rotate),adce' -S -verify-analysis-invalidation=0 -debug-pass-manager -debug-only=loop-rotate 2>&1 | FileCheck %s
;RUN: opt %s -aa-pipeline= -passes='adce,loop-mssa(loop-rotate),adce' -S -verify-analysis-invalidation=0 -debug-pass-manager -debug-only=loop-rotate -verify-memoryssa 2>&1 | FileCheck %s --check-prefix=MSSA
;REQUIRES: asserts
; This test is to make sure we invalidate the post dominator pass after loop rotate simplifies the loop latch.
; The adce passes are here to make sure post dominator analysis is required.
; CHECK: Running pass: ADCEPass on f
; CHECK-NEXT: Running analysis: PostDominatorTreeAnalysis on f
; CHECK-NEXT: Running pass: LoopSimplifyPass on f
; CHECK-NEXT: Running analysis: LoopAnalysis on f
; CHECK-NEXT: Running analysis: DominatorTreeAnalysis on f
; CHECK-NEXT: Running analysis: AssumptionAnalysis on f
; CHECK-NEXT: Running analysis: TargetIRAnalysis on f
; CHECK-NEXT: Running pass: LCSSAPass on f
; CHECK-NEXT: Running analysis: AAManager on f
; CHECK-NEXT: Running analysis: TargetLibraryAnalysis on f
; CHECK-NEXT: Running analysis: ScalarEvolutionAnalysis on f
; CHECK-NEXT: Running analysis: InnerAnalysisManagerProxy{{.*}} on f
; CHECK-NEXT: Running pass: LoopRotatePass on loop %bb in function f
; CHECK-NEXT: Folding loop latch bb4 into bb
; CHECK-NEXT: Invalidating analysis: PostDominatorTreeAnalysis on f
; CHECK-NEXT: Running pass: ADCEPass on f
; CHECK-NEXT: Running analysis: PostDominatorTreeAnalysis on f
; MSSA: Running pass: ADCEPass on f
; MSSA-NEXT: Running analysis: PostDominatorTreeAnalysis on f
; MSSA-NEXT: Running pass: LoopSimplifyPass on f
; MSSA-NEXT: Running analysis: LoopAnalysis on f
; MSSA-NEXT: Running analysis: DominatorTreeAnalysis on f
; MSSA-NEXT: Running analysis: AssumptionAnalysis on f
; MSSA-NEXT: Running analysis: TargetIRAnalysis on f
; MSSA-NEXT: Running pass: LCSSAPass on f
; MSSA-NEXT: Running analysis: MemorySSAAnalysis on f
; MSSA-NEXT: Running analysis: AAManager on f
; MSSA-NEXT: Running analysis: TargetLibraryAnalysis on f
; MSSA-NEXT: Running analysis: ScalarEvolutionAnalysis on f
; MSSA-NEXT: Running analysis: InnerAnalysisManagerProxy{{.*}} on f
; MSSA-NEXT: Running pass: LoopRotatePass on loop %bb in function f
; MSSA-NEXT: Folding loop latch bb4 into bb
; MSSA-NEXT: Invalidating analysis: PostDominatorTreeAnalysis on f
; MSSA-NEXT: Running pass: ADCEPass on f
; MSSA-NEXT: Running analysis: PostDominatorTreeAnalysis on f
; CHECK-LABEL: define i8 @f() {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label %bb
; CHECK: bb: ; preds = %bb, %entry
; CHECK-NEXT: %mode.0 = phi i8 [ 0, %entry ], [ %indvar.next, %bb ]
; CHECK-NEXT: %tmp5 = icmp eq i8 %mode.0, 1
; CHECK-NEXT: %indvar.next = add i8 %mode.0, 1
; CHECK-NEXT: br i1 %tmp5, label %bb5, label %bb
; CHECK: bb5: ; preds = %bb
; CHECK-NEXT: tail call void @raise_exception() #0
; CHECK-NEXT: unreachable
; CHECK-NEXT: }
; CHECK: ; Function Attrs: noreturn
; CHECK: declare void @raise_exception() #0
; CHECK: attributes #0 = { noreturn }
; MSSA-LABEL: define i8 @f() {
; MSSA-NEXT: entry:
; MSSA-NEXT: br label %bb
; MSSA: bb: ; preds = %bb, %entry
; MSSA-NEXT: %mode.0 = phi i8 [ 0, %entry ], [ %indvar.next, %bb ]
; MSSA-NEXT: %tmp5 = icmp eq i8 %mode.0, 1
; MSSA-NEXT: %indvar.next = add i8 %mode.0, 1
; MSSA-NEXT: br i1 %tmp5, label %bb5, label %bb
; MSSA: bb5: ; preds = %bb
; MSSA-NEXT: tail call void @raise_exception() #0
; MSSA-NEXT: unreachable
; MSSA-NEXT: }
; MSSA: ; Function Attrs: noreturn
; MSSA: declare void @raise_exception() #0
; MSSA: attributes #0 = { noreturn }
define i8 @f() {
entry:
br label %bb
bb: ; preds = %bb4, %entry
%mode.0 = phi i8 [ 0, %entry ], [ %indvar.next, %bb4 ]
%tmp5 = icmp eq i8 %mode.0, 1
br i1 %tmp5, label %bb5, label %bb4
bb4: ; preds = %bb2
%indvar.next = add i8 %mode.0, 1
br label %bb
bb5: ; preds = %bb2
tail call void @raise_exception() #0
unreachable
}
; Function Attrs: noreturn
declare void @raise_exception() #0
attributes #0 = { noreturn }