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 5; RUN: opt -regions -print-region-style=bb -analyze < %s 2>&1 | FileCheck -check-prefix=BBIT %s 6; RUN: opt -regions -print-region-style=rn -analyze < %s 2>&1 | FileCheck -check-prefix=RNIT %s 7 8; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s 9 10define internal fastcc zeroext i8 @handle_compress() nounwind { 11entry: 12 br label %outer 13 14outer: 15 br label %body 16 17body: 18 br i1 1, label %exit172, label %end 19 20exit172: 21 br i1 1, label %end, label %outer 22 23end: 24 ret i8 1 25} 26; CHECK-NOT: => 27; CHECK: [0] entry => <Function Return> 28; CHECK-NEXT: [1] outer => end 29 30; STAT: 2 region - The # of regions 31 32; BBIT: entry, outer, body, exit172, end, 33; BBIT: outer, body, exit172, 34 35; RNIT: entry, outer => end, end, 36; RNIT: outer, body, exit172, 37