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; RUN: opt -regions -analyze < %s | FileCheck %s
; RUN: opt -regions -stats < %s |& FileCheck -check-prefix=STAT %s
; RUN: opt -regions -print-region-style=bb -analyze < %s |& FileCheck -check-prefix=BBIT %s
; RUN: opt -regions -print-region-style=rn -analyze < %s |& FileCheck -check-prefix=RNIT %s
define void @meread_() nounwind {
entry:
br label %bb23
bb23:
br label %bb.i
bb.i: ; preds = %bb.i, %bb54
br label %pflini_.exit
pflini_.exit: ; preds = %bb.i
br label %bb58thread-split
bb58thread-split: ; preds = %bb64, %bb61, %pflini_.exit
br label %bb58
bb58: ; preds = %bb60, %bb58thread-split
br i1 1, label %bb59, label %bb23
bb59: ; preds = %bb58
switch i32 1, label %bb60 [
i32 1, label %l98
]
bb60: ; preds = %bb59
br i1 1, label %bb61, label %bb58
bb61: ; preds = %bb60
br label %bb58thread-split
l98: ; preds = %bb69, %bb59
ret void
}
; CHECK-NOT: =>
; CHECK: [0] entry => <Function Return>
; CHECK: [1] bb23 => l98
; STAT: 2 region - The # of regions
; STAT: 1 region - The # of simple regions
; BBIT: entry, bb23, bb.i, pflini_.exit, bb58thread-split, bb58, bb59, bb60, bb61, l98,
; BBIT: bb23, bb.i, pflini_.exit, bb58thread-split, bb58, bb59, bb60, bb61,
; RNIT: entry, bb23 => l98, l98,
; RNIT: bb23, bb.i, pflini_.exit, bb58thread-split, bb58, bb59, bb60, bb61,
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