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; RUN: opt -regions -analyze < %s | FileCheck %s
; RUN: opt -regions -stats -analyze < %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 @BZ2_blockSort() nounwind {
start:
br label %while
while:
br label %while.body134.i.i
while.body134.i.i:
br i1 1, label %end, label %w
w:
br label %if.end140.i.i
if.end140.i.i:
br i1 1, label %while.end186.i.i, label %if.end183.i.i
if.end183.i.i:
br label %while.body134.i.i
while.end186.i.i:
br label %while
end:
ret void
}
; CHECK-NOT: =>
; CHECK: [0] start => <Function Return>
; CHECK: [1] while => end
; STAT: 2 region - The # of regions
; STAT: 1 region - The # of simple regions
; BBIT: start, while, while.body134.i.i, end, w, if.end140.i.i, while.end186.i.i, if.end183.i.i,
; BBIT: while, while.body134.i.i, w, if.end140.i.i, while.end186.i.i, if.end183.i.i,
; RNIT: start, while => end, end,
; RNIT: while, while.body134.i.i, w, if.end140.i.i, while.end186.i.i, if.end183.i.i,
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