1; RUN: opt < %s -simplifycfg -S | FileCheck %s 2 3; int foo1_with_default(int a) { 4; switch(a) { 5; case 10: 6; return 10; 7; case 20: 8; return 2; 9; } 10; return 4; 11; } 12 13define i32 @foo1_with_default(i32 %a) { 14; CHECK-LABEL: @foo1_with_default( 15; CHECK-NEXT: entry: 16; CHECK-NEXT: [[SWITCH_SELECTCMP:%.*]] = icmp eq i32 %a, 20 17; CHECK-NEXT: [[SWITCH_SELECT:%.*]] = select i1 [[SWITCH_SELECTCMP:%.*]], i32 2, i32 4 18; CHECK-NEXT: [[SWITCH_SELECTCMP1:%.*]] = icmp eq i32 %a, 10 19; CHECK-NEXT: [[SWITCH_SELECT2:%.*]] = select i1 [[SWITCH_SELECTCMP1]], i32 10, i32 [[SWITCH_SELECT]] 20; CHECK-NEXT: ret i32 [[SWITCH_SELECT2]] 21; 22entry: 23 switch i32 %a, label %sw.epilog [ 24 i32 10, label %sw.bb 25 i32 20, label %sw.bb1 26 ] 27 28sw.bb: 29 br label %return 30 31sw.bb1: 32 br label %return 33 34sw.epilog: 35 br label %return 36 37return: 38 %retval.0 = phi i32 [ 4, %sw.epilog ], [ 2, %sw.bb1 ], [ 10, %sw.bb ] 39 ret i32 %retval.0 40} 41 42