1; Test 64-bit addition in which the second operand is constant and in which
2; three-operand forms are available.
3;
4; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
5
6; Check additions of 1.
7define i64 @f1(i64 %a, i64 %b) {
8; CHECK-LABEL: f1:
9; CHECK: {{aghik %r2, %r3, 1|la %r2, 1\(%r3\)}}
10; CHECK: br %r14
11  %add = add i64 %b, 1
12  ret i64 %add
13}
14
15; Check the high end of the AGHIK range.
16define i64 @f2(i64 %a, i64 %b) {
17; CHECK-LABEL: f2:
18; CHECK: aghik %r2, %r3, 32767
19; CHECK: br %r14
20  %add = add i64 %b, 32767
21  ret i64 %add
22}
23
24; Check the next value up, which must use AGFI instead.
25define i64 @f3(i64 %a, i64 %b) {
26; CHECK-LABEL: f3:
27; CHECK: {{agfi %r[0-5], 32768|lay %r2, 32768\(%r3\)}}
28; CHECK: br %r14
29  %add = add i64 %b, 32768
30  ret i64 %add
31}
32
33; Check the high end of the negative AGHIK range.
34define i64 @f4(i64 %a, i64 %b) {
35; CHECK-LABEL: f4:
36; CHECK: aghik %r2, %r3, -1
37; CHECK: br %r14
38  %add = add i64 %b, -1
39  ret i64 %add
40}
41
42; Check the low end of the AGHIK range.
43define i64 @f5(i64 %a, i64 %b) {
44; CHECK-LABEL: f5:
45; CHECK: aghik %r2, %r3, -32768
46; CHECK: br %r14
47  %add = add i64 %b, -32768
48  ret i64 %add
49}
50
51; Check the next value down, which must use AGFI instead.
52define i64 @f6(i64 %a, i64 %b) {
53; CHECK-LABEL: f6:
54; CHECK: {{agfi %r[0-5], -32769|lay %r2, -32769\(%r3\)}}
55; CHECK: br %r14
56  %add = add i64 %b, -32769
57  ret i64 %add
58}
59
60; Check that AGHI is still used in obvious cases.
61define i64 @f7(i64 %a) {
62; CHECK-LABEL: f7:
63; CHECK: aghi %r2, 32000
64; CHECK: br %r14
65  %add = add i64 %a, 32000
66  ret i64 %add
67}
68