1; Test 32-bit atomic ANDs.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
4
5; Check ANDs of a variable.
6define i32 @f1(i32 %dummy, i32 *%src, i32 %b) {
7; CHECK-LABEL: f1:
8; CHECK: l %r2, 0(%r3)
9; CHECK: [[LABEL:\.[^ ]*]]:
10; CHECK: lr %r0, %r2
11; CHECK: nr %r0, %r4
12; CHECK: cs %r2, %r0, 0(%r3)
13; CHECK: jl [[LABEL]]
14; CHECK: br %r14
15  %res = atomicrmw and i32 *%src, i32 %b seq_cst
16  ret i32 %res
17}
18
19; Check ANDs of 1.
20define i32 @f2(i32 %dummy, i32 *%src) {
21; CHECK-LABEL: f2:
22; CHECK: l %r2, 0(%r3)
23; CHECK: [[LABEL:\.[^ ]*]]:
24; CHECK: lr %r0, %r2
25; CHECK: nilf %r0, 1
26; CHECK: cs %r2, %r0, 0(%r3)
27; CHECK: jl [[LABEL]]
28; CHECK: br %r14
29  %res = atomicrmw and i32 *%src, i32 1 seq_cst
30  ret i32 %res
31}
32
33; Check ANDs of the low end of the NILH range.
34define i32 @f3(i32 %dummy, i32 *%src) {
35; CHECK-LABEL: f3:
36; CHECK: nilh %r0, 0
37; CHECK: br %r14
38  %res = atomicrmw and i32 *%src, i32 65535 seq_cst
39  ret i32 %res
40}
41
42; Check the next value up, which must use NILF.
43define i32 @f4(i32 %dummy, i32 *%src) {
44; CHECK-LABEL: f4:
45; CHECK: nilf %r0, 65536
46; CHECK: br %r14
47  %res = atomicrmw and i32 *%src, i32 65536 seq_cst
48  ret i32 %res
49}
50
51; Check the largest useful NILL value.
52define i32 @f5(i32 %dummy, i32 *%src) {
53; CHECK-LABEL: f5:
54; CHECK: nill %r0, 65534
55; CHECK: br %r14
56  %res = atomicrmw and i32 *%src, i32 -2 seq_cst
57  ret i32 %res
58}
59
60; Check the low end of the NILL range.
61define i32 @f6(i32 %dummy, i32 *%src) {
62; CHECK-LABEL: f6:
63; CHECK: nill %r0, 0
64; CHECK: br %r14
65  %res = atomicrmw and i32 *%src, i32 -65536 seq_cst
66  ret i32 %res
67}
68
69; Check the largest useful NILH value, which is one less than the above.
70define i32 @f7(i32 %dummy, i32 *%src) {
71; CHECK-LABEL: f7:
72; CHECK: nilh %r0, 65534
73; CHECK: br %r14
74  %res = atomicrmw and i32 *%src, i32 -65537 seq_cst
75  ret i32 %res
76}
77
78; Check the highest useful NILF value, which is one less than the above.
79define i32 @f8(i32 %dummy, i32 *%src) {
80; CHECK-LABEL: f8:
81; CHECK: nilf %r0, 4294901758
82; CHECK: br %r14
83  %res = atomicrmw and i32 *%src, i32 -65538 seq_cst
84  ret i32 %res
85}
86