mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 12:02:58 +02:00
9d1ef38768
Summary: Require DominatorTree when requiring/preserving LoopInfo in the old pass manager BreakCriticalEdges tries to keep LoopInfo and DominatorTree updated if they exist. However, since commit r321653 and r321805, to update LoopInfo we must have a DominatorTree, or we will hit an assert. To fix this we now make a couple of passes that only required/preserved LoopInfo also require DominatorTree. This solves PR37334. Reviewers: eli.friedman, efriedma Reviewed By: efriedma Subscribers: efriedma, llvm-commits Differential Revision: https://reviews.llvm.org/D46829 llvm-svn: 332583
45 lines
1.6 KiB
LLVM
45 lines
1.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -loop-sink -break-crit-edges -branch-prob -S | FileCheck %s
|
|
; RUN: opt < %s -loop-sink -break-crit-edges -lazy-block-freq -S | FileCheck %s
|
|
; RUN: opt < %s -loop-sink -break-crit-edges -lazy-branch-prob -S | FileCheck %s
|
|
|
|
; BreakCriticalEdges tries to update LI and DT if they are present. However,
|
|
; updating LI actually needs a DT, so we now require DT in
|
|
; BranchProbabilityInfo/LazyBlockFrequencyInfo/LazyBranchProbabilityInfo so it
|
|
; is indeed available when LI is.
|
|
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
define void @f1() {
|
|
; CHECK-LABEL: @f1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[FOR_COND:%.*]]
|
|
; CHECK: for.cond:
|
|
; CHECK-NEXT: br i1 false, label [[FOR_BODY:%.*]], label [[FOR_COND_FOR_END_CRIT_EDGE:%.*]]
|
|
; CHECK: for.cond.for.end_crit_edge:
|
|
; CHECK-NEXT: br label [[FOR_END:%.*]]
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: br i1 true, label [[FOR_ENDSPLIT:%.*]], label [[FOR_INC:%.*]]
|
|
; CHECK: for.inc:
|
|
; CHECK-NEXT: br label [[FOR_COND]]
|
|
; CHECK: for.endsplit:
|
|
; CHECK-NEXT: br label [[FOR_END]]
|
|
; CHECK: for.end:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
br i1 undef, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
br i1 undef, label %for.end, label %for.inc
|
|
|
|
for.inc: ; preds = %for.body
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.body, %for.cond
|
|
ret void
|
|
}
|