[MIParser] Set RegClassOrRegBank during instruction parsing
[llvm-complete.git] / test / Transforms / SimplifyCFG / CoveredLookupTable.ll
blobe3a3b3fc58cd7b377ff1cac6a5355ccba0c195b6
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
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(
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]]
19 entry:
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   ]
29 bb:                                               ; preds = %entry
30   br label %bb8
32 bb3:                                              ; preds = %entry
33   br label %bb8
35 bb4:                                              ; preds = %entry
36   br label %bb8
38 bb5:                                              ; preds = %entry
39   br label %bb8
41 bb6:                                              ; preds = %entry
42   br label %bb8
44 bb7:                                              ; preds = %entry
45   br 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 ]
49   ret i3 %result