1; Test the "R" asm constraint, which accepts addresses that have a base,
2; an index 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", "=*R" (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", "=*R" (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", "=*R" (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", "=*R" (i64 *%addr)
48  ret void
49}
50
51; Check that indices are allowed
52define void @f5(i64 %base, i64 %index) {
53; CHECK-LABEL: f5:
54; CHECK: blah 0(%r3,%r2)
55; CHECK: br %r14
56  %add = add i64 %base, %index
57  %addr = inttoptr i64 %add to i64 *
58  call void asm "blah $0", "=*R" (i64 *%addr)
59  ret void
60}
61
62; Check that indices and displacements are allowed simultaneously
63define void @f6(i64 %base, i64 %index) {
64; CHECK-LABEL: f6:
65; CHECK: blah 4095(%r3,%r2)
66; CHECK: br %r14
67  %add = add i64 %base, 4095
68  %addi = add i64 %add, %index
69  %addr = inttoptr i64 %addi to i64 *
70  call void asm "blah $0", "=*R" (i64 *%addr)
71  ret void
72}
73
74; Check that LAY is used if there is an index but the displacement is too large
75define void @f7(i64 %base, i64 %index) {
76; CHECK-LABEL: f7:
77; CHECK: lay %r0, 4096(%r3,%r2)
78; CHECK: blah 0(%r0)
79; CHECK: br %r14
80  %add = add i64 %base, 4096
81  %addi = add i64 %add, %index
82  %addr = inttoptr i64 %addi to i64 *
83  call void asm "blah $0", "=*R" (i64 *%addr)
84  ret void
85}
86