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1; REQUIRES: asserts2 3; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s4; RUN: opt -passes='print<regions>' -stats -disable-output < %s 2>&1 | FileCheck -check-prefix=STAT %s5; RUN: opt -passes='print<regions>' -print-region-style=bb < %s 2>&1 | FileCheck -check-prefix=BBIT %s6; RUN: opt -passes='print<regions>' -print-region-style=rn < %s 2>&1 | FileCheck -check-prefix=RNIT %s7 8define void @MAIN__() nounwind {9entry:10 br label %__label_002001.outer11 12__label_002001.outer: ; preds = %bb236, %bb9213 br label %__label_00200114 15__label_002001: ; preds = %bb229, %__label_002001.outer16 br i1 1, label %bb93, label %__label_00002017 18bb93: ; preds = %__label_00200119 br i1 1, label %__label_000020, label %bb19720 21bb197: ; preds = %bb19322 br i1 1, label %bb229, label %bb22423 24bb224: ; preds = %bb223, %bb22725 br i1 1, label %bb229, label %bb22426 27bb229: ; preds = %bb227, %bb22328 br i1 1, label %__label_002001, label %__label_002001.outer29 30__label_000020: ; preds = %__label_002001, %bb19431 ret void32}33 34; CHECK-NOT: =>35; CHECK: [0] entry => <Function Return>36; CHECK-NEXT: [1] __label_002001.outer => __label_00002037; CHECK-NEXT: [2] bb197 => bb22938; CHECK-NEXT: [3] bb224 => bb22939 40; STAT: 4 region - The # of regions41; STAT: 1 region - The # of simple regions42 43; BBIT: entry, __label_002001.outer, __label_002001, bb93, __label_000020, bb197, bb229, bb224,44; BBIT: __label_002001.outer, __label_002001, bb93, bb197, bb229, bb224,45; BBIT: bb197, bb224,46; BBIT: bb224,47 48; RNIT: entry, __label_002001.outer => __label_000020, __label_000020,49; RNIT: __label_002001.outer, __label_002001, bb93, bb197 => bb229, bb229,50; RNIT: bb197, bb224 => bb229,51; RNIT: bb224,52