1; RUN: llc -o - %s -mtriple=aarch64-- | FileCheck %s
2
3; CHECK-LABEL: and1:
4; CHECK: and {{w[0-9]+}}, w0, #0xfffffffd
5
6define void @and1(i32 %a, i8* nocapture %p) {
7entry:
8  %and = and i32 %a, 253
9  %conv = trunc i32 %and to i8
10  store i8 %conv, i8* %p, align 1
11  ret void
12}
13
14; (a & 0x3dfd) | 0xffffc000
15;
16; CHECK-LABEL: and2:
17; CHECK: and {{w[0-9]+}}, w0, #0xfdfdfdfd
18
19define i32 @and2(i32 %a) {
20entry:
21  %and = and i32 %a, 15869
22  %or = or i32 %and, -16384
23  ret i32 %or
24}
25
26; (a & 0x19) | 0xffffffc0
27;
28; CHECK-LABEL: and3:
29; CHECK: and {{w[0-9]+}}, w0, #0x99999999
30
31define i32 @and3(i32 %a) {
32entry:
33  %and = and i32 %a, 25
34  %or = or i32 %and, -64
35  ret i32 %or
36}
37
38; (a & 0xc5600) | 0xfff1f1ff
39;
40; CHECK-LABEL: and4:
41; CHECK: and {{w[0-9]+}}, w0, #0xfffc07ff
42
43define i32 @and4(i32 %a) {
44entry:
45  %and = and i32 %a, 787968
46  %or = or i32 %and, -921089
47  ret i32 %or
48}
49
50; Make sure we don't shrink or optimize an XOR's immediate operand if the
51; immediate is -1. Instruction selection turns (and ((xor $mask, -1), $v0)) into
52; a BIC.
53
54; CHECK-LABEL: xor1:
55; CHECK: mov [[R0:w[0-9]+]], #56
56; CHECK: bic {{w[0-9]+}}, [[R0]], w0, lsl #3
57
58define i32 @xor1(i32 %a) {
59entry:
60  %shl = shl i32 %a, 3
61  %xor = and i32 %shl, 56
62  %and = xor i32 %xor, 56
63  ret i32 %and
64}
65
66; Check that, when (and %t1, 129) is transformed to (and %t0, 0),
67; (xor %arg, 129) doesn't get transformed to (xor %arg, 0).
68;
69; CHECK-LABEL: PR33100:
70; CHECK: mov w[[R0:[0-9]+]], #129
71; CHECK: eor {{x[0-9]+}}, {{x[0-9]+}}, x[[R0]]
72
73define i64 @PR33100(i64 %arg) {
74entry:
75  %alloca0 = alloca i64
76  store i64 8, i64* %alloca0, align 4
77  %t0 = load i64, i64* %alloca0, align 4
78  %t1 = shl i64 %arg, %t0
79  %and0 = and i64 %t1, 129
80  %xor0 = xor i64 %arg, 129
81  %t2 = add i64 %and0, %xor0
82  ret i64 %t2
83}
84