1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
; Test 64-bit atomic additions, z196 version.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
; Check addition of a variable.
define i64 @f1(i64 %dummy, i64 *%src, i64 %b) {
; CHECK-LABEL: f1:
; CHECK: laag %r2, %r4, 0(%r3)
; CHECK: br %r14
%res = atomicrmw add i64 *%src, i64 %b seq_cst
ret i64 %res
}
; Check addition of 1, which needs a temporary.
define i64 @f2(i64 %dummy, i64 *%src) {
; CHECK-LABEL: f2:
; CHECK: lghi [[TMP:%r[0-5]]], 1
; CHECK: laag %r2, [[TMP]], 0(%r3)
; CHECK: br %r14
%res = atomicrmw add i64 *%src, i64 1 seq_cst
ret i64 %res
}
; Check the high end of the LAAG range.
define i64 @f3(i64 %dummy, i64 *%src, i64 %b) {
; CHECK-LABEL: f3:
; CHECK: laag %r2, %r4, 524280(%r3)
; CHECK: br %r14
%ptr = getelementptr i64, i64 *%src, i64 65535
%res = atomicrmw add i64 *%ptr, i64 %b seq_cst
ret i64 %res
}
; Check the next doubleword up, which needs separate address logic.
define i64 @f4(i64 %dummy, i64 *%src, i64 %b) {
; CHECK-LABEL: f4:
; CHECK: agfi %r3, 524288
; CHECK: laag %r2, %r4, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i64, i64 *%src, i64 65536
%res = atomicrmw add i64 *%ptr, i64 %b seq_cst
ret i64 %res
}
; Check the low end of the LAAG range.
define i64 @f5(i64 %dummy, i64 *%src, i64 %b) {
; CHECK-LABEL: f5:
; CHECK: laag %r2, %r4, -524288(%r3)
; CHECK: br %r14
%ptr = getelementptr i64, i64 *%src, i64 -65536
%res = atomicrmw add i64 *%ptr, i64 %b seq_cst
ret i64 %res
}
; Check the next doubleword down, which needs separate address logic.
define i64 @f6(i64 %dummy, i64 *%src, i64 %b) {
; CHECK-LABEL: f6:
; CHECK: agfi %r3, -524296
; CHECK: laag %r2, %r4, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i64, i64 *%src, i64 -65537
%res = atomicrmw add i64 *%ptr, i64 %b seq_cst
ret i64 %res
}
|
