45 lines
1.7 KiB
LLVM
45 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -loop-sink -break-crit-edges -branch-prob -S -enable-new-pm=0 | FileCheck %s
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; RUN: opt < %s -loop-sink -break-crit-edges -lazy-block-freq -S -enable-new-pm=0 | FileCheck %s
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; RUN: opt < %s -loop-sink -break-crit-edges -lazy-branch-prob -S -enable-new-pm=0 | FileCheck %s
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; BreakCriticalEdges tries to update LI and DT if they are present. However,
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; updating LI actually needs a DT, so we now require DT in
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; BranchProbabilityInfo/LazyBlockFrequencyInfo/LazyBranchProbabilityInfo so it
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; is indeed available when LI is.
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target triple = "x86_64-unknown-linux-gnu"
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define void @f1() {
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; CHECK-LABEL: @f1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[FOR_COND:%.*]]
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; CHECK: for.cond:
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; CHECK-NEXT: br i1 false, label [[FOR_BODY:%.*]], label [[FOR_COND_FOR_END_CRIT_EDGE:%.*]]
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; CHECK: for.cond.for.end_crit_edge:
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; CHECK-NEXT: br label [[FOR_END:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: br i1 true, label [[FOR_ENDSPLIT:%.*]], label [[FOR_INC:%.*]]
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; CHECK: for.inc:
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; CHECK-NEXT: br label [[FOR_COND]]
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; CHECK: for.endsplit:
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; CHECK-NEXT: br label [[FOR_END]]
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; CHECK: for.end:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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br i1 undef, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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br i1 undef, label %for.end, label %for.inc
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for.inc: ; preds = %for.body
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br label %for.cond
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for.end: ; preds = %for.body, %for.cond
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ret void
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}
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