1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -simplifycfg -switch-to-lookup -S %s | FileCheck %s 3; RUN: opt -passes='simplify-cfg<switch-to-lookup>' -S %s | FileCheck %s 4; rdar://15268442 5 6target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 7target triple = "x86_64-apple-darwin12.0.0" 8 9define i3 @coveredswitch_test(i3 %input) { 10; CHECK-LABEL: @coveredswitch_test( 11; CHECK-NEXT: entry: 12; CHECK-NEXT: [[SWITCH_TABLEIDX:%.*]] = sub i3 [[INPUT:%.*]], -4 13; CHECK-NEXT: [[SWITCH_CAST:%.*]] = zext i3 [[SWITCH_TABLEIDX]] to i24 14; CHECK-NEXT: [[SWITCH_SHIFTAMT:%.*]] = mul i24 [[SWITCH_CAST]], 3 15; CHECK-NEXT: [[SWITCH_DOWNSHIFT:%.*]] = lshr i24 7507338, [[SWITCH_SHIFTAMT]] 16; CHECK-NEXT: [[SWITCH_MASKED:%.*]] = trunc i24 [[SWITCH_DOWNSHIFT]] to i3 17; CHECK-NEXT: ret i3 [[SWITCH_MASKED]] 18; 19entry: 20 switch i3 %input, label %bb8 [ 21 i3 0, label %bb7 22 i3 1, label %bb 23 i3 2, label %bb3 24 i3 3, label %bb4 25 i3 4, label %bb5 26 i3 5, label %bb6 27 ] 28 29bb: ; preds = %entry 30 br label %bb8 31 32bb3: ; preds = %entry 33 br label %bb8 34 35bb4: ; preds = %entry 36 br label %bb8 37 38bb5: ; preds = %entry 39 br label %bb8 40 41bb6: ; preds = %entry 42 br label %bb8 43 44bb7: ; preds = %entry 45 br label %bb8 46 47bb8: ; preds = %bb7, %bb6, %bb5, %bb4, %bb3, %bb, %entry 48 %result = phi i3 [ 0, %bb7 ], [ 1, %bb6 ], [ 2, %bb5 ], [ 3, %bb4 ], [ 4, %bb3 ], [ 5, %bb ], [ 6, %entry ] 49 ret i3 %result 50} 51