1; REQUIRES: asserts 2 3; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s 4; RUN: opt < %s -passes='print<regions>' -stats 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 @meread_() nounwind { 9entry: 10 br label %bb23 11 12bb23: 13 br label %bb.i 14 15bb.i: ; preds = %bb.i, %bb54 16 br label %pflini_.exit 17 18pflini_.exit: ; preds = %bb.i 19 br label %bb58thread-split 20 21bb58thread-split: ; preds = %bb64, %bb61, %pflini_.exit 22 br label %bb58 23 24bb58: ; preds = %bb60, %bb58thread-split 25 br i1 1, label %bb59, label %bb23 26 27bb59: ; preds = %bb58 28 switch i32 1, label %bb60 [ 29 i32 1, label %l98 30 ] 31 32bb60: ; preds = %bb59 33 br i1 1, label %bb61, label %bb58 34 35bb61: ; preds = %bb60 36 br label %bb58thread-split 37 38l98: ; preds = %bb69, %bb59 39 ret void 40} 41; CHECK-NOT: => 42; CHECK: [0] entry => <Function Return> 43; CHECK: [1] bb23 => l98 44; STAT: 2 region - The # of regions 45; STAT: 1 region - The # of simple regions 46 47; BBIT: entry, bb23, bb.i, pflini_.exit, bb58thread-split, bb58, bb59, bb60, bb61, l98, 48; BBIT: bb23, bb.i, pflini_.exit, bb58thread-split, bb58, bb59, bb60, bb61, 49 50; RNIT: entry, bb23 => l98, l98, 51; RNIT: bb23, bb.i, pflini_.exit, bb58thread-split, bb58, bb59, bb60, bb61, 52