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
6 target 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"
7 target triple = "x86_64-apple-darwin12.0.0"
9 define i3 @coveredswitch_test(i3 %input) {
10 ; CHECK-LABEL: @coveredswitch_test(
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]]
20 switch i3 %input, label %bb8 [
47 bb8: ; 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 ]