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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 @a_linear_impl_fig_1() nounwind {9"0":10 11 br i1 1, label %"1", label %"15"12"1":13 switch i32 0, label %"2" [ i32 0, label %"3"14 i32 1, label %"7"]15"2":16 br label %"4"17"3":18 br label %"5"19"4":20 br label %"6"21"5":22 br label %"6"23"6":24 br label %"7"25"7":26 br label %"15"27"15":28 br label %"8"29"8":30 br label %"16"31"16":32 br label %"9"33"9":34 br i1 1, label %"10", label %"11"35"11":36 br i1 1, label %"13", label %"12"37"13":38 br label %"14"39"12":40 br label %"14"41"14":42 br label %"8"43"10":44 br label %"17"45"17":46 br label %"18"47"18":48 ret void49}50 51; CHECK-NOT: =>52; CHECK: [0] 0 => <Function Return>53; CHECK-NEXT: [1] 0 => 1554; CHECK-NEXT: [2] 1 => 755; CHECK-NEXT: [1] 8 => 1056; CHECK-NEXT: [2] 11 => 1457; STAT: 5 region - The # of regions58; STAT: 1 region - The # of simple regions59 60; BBIT: 0, 1, 2, 4, 6, 7, 15, 8, 16, 9, 10, 17, 18, 11, 13, 14, 12, 3, 5,61; BBIT: 0, 1, 2, 4, 6, 7, 3, 5,62; BBIT: 1, 2, 4, 6, 3, 5,63; BBIT: 8, 16, 9, 11, 13, 14, 12,64; BBIT: 11, 13, 12,65 66; RNIT: 0 => 15, 15, 8 => 10, 10, 17, 18,67; RNIT: 0, 1 => 7, 7,68; RNIT: 1, 2, 4, 6, 3, 5,69; RNIT: 8, 16, 9, 11 => 14, 14,70; RNIT: 11, 13, 12,71