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1; REQUIRES: asserts2 3; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s4; RUN: opt < %s -passes='print<regions>' -stats 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 @BZ2_blockSort() nounwind {9start:10 br label %while11 12while:13 br label %while.body134.i.i14 15while.body134.i.i:16 br i1 1, label %end, label %w17 18w:19 br label %if.end140.i.i20 21if.end140.i.i:22 br i1 1, label %while.end186.i.i, label %if.end183.i.i23 24if.end183.i.i:25 br label %while.body134.i.i26 27while.end186.i.i:28 br label %while29 30end:31 ret void32}33; CHECK-NOT: =>34; CHECK: [0] start => <Function Return>35; CHECK: [1] while => end36 37; STAT: 2 region - The # of regions38; STAT: 1 region - The # of simple regions39 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