1; REQUIRES: asserts 2; RUN: opt -regions -analyze < %s | FileCheck %s 3; RUN: opt -regions -stats < %s 2>&1 | FileCheck -check-prefix=STAT %s 4; RUN: opt -regions -print-region-style=bb -analyze < %s 2>&1 | FileCheck -check-prefix=BBIT %s 5; RUN: opt -regions -print-region-style=rn -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s 6 7; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s 8 9define void @normal_condition() nounwind { 100: 11 br label %"1" 121: 13 br i1 1, label %"2", label %"3" 142: 15 br label %"4" 163: 17 br label %"4" 184: 19 ret void 20} 21 22; CHECK-NOT: => 23; CHECK: [0] 0 => <Function Return> 24; CHECK-NEXT: [1] 1 => 4 25; STAT: 2 region - The # of regions 26 27; BBIT: 0, 1, 2, 4, 3, 28; BBIT: 1, 2, 3, 29 30; RNIT: 0, 1 => 4, 4, 31; RNIT: 1, 2, 3, 32