1; RUN: opt -regions -analyze < %s | FileCheck %s 2; RUN: opt -regions -stats < %s |& FileCheck -check-prefix=STAT %s 3 4; RUN: opt -regions -print-region-style=bb -analyze < %s |& FileCheck -check-prefix=BBIT %s 5; RUN: opt -regions -print-region-style=rn -analyze < %s |& FileCheck -check-prefix=RNIT %s 6 7define void @a_linear_impl_fig_1() nounwind { 80: 9 10 br i1 1, label %"1", label %"15" 111: 12 switch i32 0, label %"2" [ i32 0, label %"3" 13 i32 1, label %"7"] 142: 15 br label %"4" 163: 17 br label %"5" 184: 19 br label %"6" 205: 21 br label %"6" 226: 23 br label %"7" 247: 25 br label %"15" 2615: 27 br label %"8" 288: 29 br label %"16" 3016: 31 br label %"9" 329: 33 br i1 1, label %"10", label %"11" 3411: 35 br i1 1, label %"13", label %"12" 3613: 37 br label %"14" 3812: 39 br label %"14" 4014: 41 br label %"8" 4210: 43 br label %"17" 4417: 45 br label %"18" 4618: 47 ret void 48} 49 50; CHECK-NOT: => 51; CHECK: [0] 0 => <Function Return> 52; CHECK-NEXT: [1] 0 => 15 53; CHECK-NEXT: [2] 1 => 7 54; CHECK-NEXT: [1] 8 => 10 55; CHECK-NEXT: [2] 11 => 14 56; STAT: 5 region - The # of regions 57; STAT: 1 region - The # of simple regions 58 59; BBIT: 0, 1, 2, 4, 6, 7, 15, 8, 16, 9, 10, 17, 18, 11, 13, 14, 12, 3, 5, 60; BBIT: 0, 1, 2, 4, 6, 7, 3, 5, 61; BBIT: 1, 2, 4, 6, 3, 5, 62; BBIT: 8, 16, 9, 11, 13, 14, 12, 63; BBIT: 11, 13, 12, 64 65; RNIT: 0 => 15, 15, 8 => 10, 10, 17, 18, 66; RNIT: 0, 1 => 7, 7, 67; RNIT: 1, 2, 4, 6, 3, 5, 68; RNIT: 8, 16, 9, 11 => 14, 14, 69; RNIT: 11, 13, 12, 70