1 ; RUN: opt -instcombine -S < %s | FileCheck %s
3 ; <rdar://problem/8606771>
4 define i32 @main(i32 %argc) {
6 ; CHECK-NEXT: [[TMP3151:%.*]] = trunc i32 %argc to i8
7 ; CHECK-NEXT: [[TMP1:%.*]] = shl i8 [[TMP3151]], 5
8 ; CHECK-NEXT: [[TMP4126:%.*]] = and i8 [[TMP1]], 64
9 ; CHECK-NEXT: [[TMP4127:%.*]] = xor i8 [[TMP4126]], 64
10 ; CHECK-NEXT: [[TMP4086:%.*]] = zext i8 [[TMP4127]] to i32
11 ; CHECK-NEXT: ret i32 [[TMP4086]]
13 %tmp3151 = trunc i32 %argc to i8
14 %tmp3161 = or i8 %tmp3151, -17
15 %tmp3162 = and i8 %tmp3151, 122
16 %tmp3163 = xor i8 %tmp3162, -17
17 %tmp4114 = shl i8 %tmp3163, 6
18 %tmp4115 = xor i8 %tmp4114, %tmp3163
19 %tmp4120 = xor i8 %tmp3161, %tmp4115
20 %tmp4126 = lshr i8 %tmp4120, 7
21 %tmp4127 = mul i8 %tmp4126, 64
22 %tmp4086 = zext i8 %tmp4127 to i32
27 define i8 @foo(i8 %arg, i8 %arg1) {
29 ; CHECK-NEXT: [[TMP:%.*]] = shl i8 %arg, 7
30 ; CHECK-NEXT: [[TMP2:%.*]] = and i8 %arg1, 84
31 ; CHECK-NEXT: [[TMP3:%.*]] = and i8 %arg1, -118
32 ; CHECK-NEXT: [[TMP4:%.*]] = and i8 %arg1, 33
33 ; CHECK-NEXT: [[TMP5:%.*]] = sub nsw i8 40, [[TMP2]]
34 ; CHECK-NEXT: [[TMP6:%.*]] = and i8 [[TMP5]], 84
35 ; CHECK-NEXT: [[TMP7:%.*]] = or i8 [[TMP4]], [[TMP6]]
36 ; CHECK-NEXT: [[TMP8:%.*]] = xor i8 [[TMP]], [[TMP3]]
37 ; CHECK-NEXT: [[TMP9:%.*]] = or i8 [[TMP7]], [[TMP8]]
38 ; CHECK-NEXT: [[TMP10:%.*]] = lshr i8 [[TMP8]], 7
39 ; CHECK-NEXT: [[TMP11:%.*]] = shl nuw nsw i8 [[TMP10]], 5
40 ; CHECK-NEXT: [[TMP12:%.*]] = xor i8 [[TMP11]], [[TMP9]]
41 ; CHECK-NEXT: ret i8 [[TMP12]]
44 %tmp2 = and i8 %arg1, 84
45 %tmp3 = and i8 %arg1, -118
46 %tmp4 = and i8 %arg1, 33
47 %tmp5 = sub i8 -88, %tmp2
48 %tmp6 = and i8 %tmp5, 84
49 %tmp7 = or i8 %tmp4, %tmp6
50 %tmp8 = xor i8 %tmp, %tmp3
51 %tmp9 = or i8 %tmp7, %tmp8
52 %tmp10 = lshr i8 %tmp8, 7
53 %tmp11 = shl i8 %tmp10, 5
54 %tmp12 = xor i8 %tmp11, %tmp9