1; Test the "Q" asm constraint, which accepts addresses that have a base
2; and a 12-bit displacement.
3;
4; RUN: llc < %s -mtriple=s390x-linux-gnu -no-integrated-as | FileCheck %s
5
6; Check the lowest range.
7define void @f1(i64 %base) {
8; CHECK-LABEL: f1:
9; CHECK: blah 0(%r2)
10; CHECK: br %r14
11  %addr = inttoptr i64 %base to i64 *
12  call void asm "blah $0", "=*Q" (i64 *%addr)
13  ret void
14}
15
16; Check the next lowest byte.
17define void @f2(i64 %base) {
18; CHECK-LABEL: f2:
19; CHECK: aghi %r2, -1
20; CHECK: blah 0(%r2)
21; CHECK: br %r14
22  %add = add i64 %base, -1
23  %addr = inttoptr i64 %add to i64 *
24  call void asm "blah $0", "=*Q" (i64 *%addr)
25  ret void
26}
27
28; Check the highest range.
29define void @f3(i64 %base) {
30; CHECK-LABEL: f3:
31; CHECK: blah 4095(%r2)
32; CHECK: br %r14
33  %add = add i64 %base, 4095
34  %addr = inttoptr i64 %add to i64 *
35  call void asm "blah $0", "=*Q" (i64 *%addr)
36  ret void
37}
38
39; Check the next highest byte.
40define void @f4(i64 %base) {
41; CHECK-LABEL: f4:
42; CHECK: aghi %r2, 4096
43; CHECK: blah 0(%r2)
44; CHECK: br %r14
45  %add = add i64 %base, 4096
46  %addr = inttoptr i64 %add to i64 *
47  call void asm "blah $0", "=*Q" (i64 *%addr)
48  ret void
49}
50
51; Check that indices aren't allowed
52define void @f5(i64 %base, i64 %index) {
53; CHECK-LABEL: f5:
54; CHECK: agr %r2, %r3
55; CHECK: blah 0(%r2)
56; CHECK: br %r14
57  %add = add i64 %base, %index
58  %addr = inttoptr i64 %add to i64 *
59  call void asm "blah $0", "=*Q" (i64 *%addr)
60  ret void
61}
62