1; REQUIRES: asserts 2 3; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s 4; RUN: opt -passes='print<regions>' -stats -disable-output < %s 2>&1 | FileCheck -check-prefix=STAT %s 5; RUN: opt -passes='print<regions>' -print-region-style=bb < %s 2>&1 | FileCheck -check-prefix=BBIT %s 6; RUN: opt -passes='print<regions>' -print-region-style=rn < %s 2>&1 | FileCheck -check-prefix=RNIT %s 7 8define void @MAIN__() nounwind { 9entry: 10 br label %__label_002001.outer 11 12__label_002001.outer: ; preds = %bb236, %bb92 13 br label %__label_002001 14 15__label_002001: ; preds = %bb229, %__label_002001.outer 16 br i1 1, label %bb93, label %__label_000020 17 18bb93: ; preds = %__label_002001 19 br i1 1, label %__label_000020, label %bb197 20 21bb197: ; preds = %bb193 22 br i1 1, label %bb229, label %bb224 23 24bb224: ; preds = %bb223, %bb227 25 br i1 1, label %bb229, label %bb224 26 27bb229: ; preds = %bb227, %bb223 28 br i1 1, label %__label_002001, label %__label_002001.outer 29 30__label_000020: ; preds = %__label_002001, %bb194 31 ret void 32} 33 34; CHECK-NOT: => 35; CHECK: [0] entry => <Function Return> 36; CHECK-NEXT: [1] __label_002001.outer => __label_000020 37; CHECK-NEXT: [2] bb197 => bb229 38; CHECK-NEXT: [3] bb224 => bb229 39 40; STAT: 4 region - The # of regions 41; STAT: 1 region - The # of simple regions 42 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