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 @BZ2_blockSort() nounwind { 9start: 10 br label %while 11 12while: 13 br label %while.body134.i.i 14 15while.body134.i.i: 16 br i1 1, label %end, label %w 17 18w: 19 br label %if.end140.i.i 20 21if.end140.i.i: 22 br i1 1, label %while.end186.i.i, label %if.end183.i.i 23 24if.end183.i.i: 25 br label %while.body134.i.i 26 27while.end186.i.i: 28 br label %while 29 30end: 31 ret void 32} 33; CHECK-NOT: => 34; CHECK: [0] start => <Function Return> 35; CHECK: [1] while => end 36 37; STAT: 2 region - The # of regions 38; STAT: 1 region - The # of simple regions 39 40; BBIT: start, while, while.body134.i.i, end, w, if.end140.i.i, while.end186.i.i, if.end183.i.i, 41; BBIT: while, while.body134.i.i, w, if.end140.i.i, while.end186.i.i, if.end183.i.i, 42 43; RNIT: start, while => end, end, 44; RNIT: while, while.body134.i.i, w, if.end140.i.i, while.end186.i.i, if.end183.i.i, 45