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; RUN: opt -S < %s -loop-unroll -block-freq | FileCheck %s
; RUN: opt -S < %s -passes='require<opt-remark-emit>,unroll,require<block-freq>' | FileCheck %s
; Crasher from PR20987.
; CHECK: define void @update_loop_info_in_subloops
; CHECK: entry:
; CHECK: L:
; CHECK: L.inner:
; CHECK: L.inner.latch:
; CHECK: L.latch:
; CHECK: L.inner.1:
; CHECK: L.inner.latch.1:
; CHECK: L.latch.1:
define void @update_loop_info_in_subloops() {
entry:
br label %L
L:
%0 = phi i64 [ 1, %entry ], [ %1, %L.latch ]
br label %L.inner
L.inner:
br label %L.inner.latch
L.inner.latch:
br i1 false, label %L.latch, label %L.inner
L.latch:
%1 = add i64 %0, 1
%2 = icmp eq i64 %1, 3
br i1 %2, label %exit, label %L
exit:
ret void
}
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