1 ; Test 32-bit atomic subtractions, z196 version.
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
5 ; Check addition of a variable.
6 define i32 @f1(i32 %dummy, i32 *%src, i32 %b) {
8 ; CHECK: lcr [[NEG:%r[0-5]]], %r4
9 ; CHECK: laa %r2, [[NEG]], 0(%r3)
11 %res = atomicrmw sub i32 *%src, i32 %b seq_cst
15 ; Check addition of 1, which needs a temporary.
16 define i32 @f2(i32 %dummy, i32 *%src) {
18 ; CHECK: lhi [[TMP:%r[0-5]]], -1
19 ; CHECK: laa %r2, [[TMP]], 0(%r3)
21 %res = atomicrmw sub i32 *%src, i32 1 seq_cst
25 ; Check the high end of the LAA range.
26 define i32 @f3(i32 %dummy, i32 *%src, i32 %b) {
28 ; CHECK: lcr [[NEG:%r[0-5]]], %r4
29 ; CHECK: laa %r2, [[NEG]], 524284(%r3)
31 %ptr = getelementptr i32, i32 *%src, i32 131071
32 %res = atomicrmw sub i32 *%ptr, i32 %b seq_cst
36 ; Check the next word up, which needs separate address logic.
37 define i32 @f4(i32 %dummy, i32 *%src, i32 %b) {
39 ; CHECK-DAG: lcr [[NEG:%r[0-5]]], %r4
40 ; CHECK-DAG: agfi %r3, 524288
41 ; CHECK: laa %r2, [[NEG]], 0(%r3)
43 %ptr = getelementptr i32, i32 *%src, i32 131072
44 %res = atomicrmw sub i32 *%ptr, i32 %b seq_cst
48 ; Check the low end of the LAA range.
49 define i32 @f5(i32 %dummy, i32 *%src, i32 %b) {
51 ; CHECK: lcr [[NEG:%r[0-5]]], %r4
52 ; CHECK: laa %r2, [[NEG]], -524288(%r3)
54 %ptr = getelementptr i32, i32 *%src, i32 -131072
55 %res = atomicrmw sub i32 *%ptr, i32 %b seq_cst
59 ; Check the next word down, which needs separate address logic.
60 define i32 @f6(i32 %dummy, i32 *%src, i32 %b) {
62 ; CHECK-DAG: lcr [[NEG:%r[0-5]]], %r4
63 ; CHECK-DAG: agfi %r3, -524292
64 ; CHECK: laa %r2, [[NEG]], 0(%r3)
66 %ptr = getelementptr i32, i32 *%src, i32 -131073
67 %res = atomicrmw sub i32 *%ptr, i32 %b seq_cst