blob: bc434a634a4ed7017be0e869b3c28714988da8dd [file] [log] [blame]
Ulrich Weigand9e3577f2013-05-06 16:17:29 +00001; Test 32-bit addition in which the second operand is variable.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
4
Richard Sandiforded1fab62013-07-03 10:10:02 +00005declare i32 @foo()
6
Ulrich Weigand9e3577f2013-05-06 16:17:29 +00007; Check AR.
8define i32 @f1(i32 %a, i32 %b) {
9; CHECK: f1:
10; CHECK: ar %r2, %r3
11; CHECK: br %r14
12 %add = add i32 %a, %b
13 ret i32 %add
14}
15
16; Check the low end of the A range.
17define i32 @f2(i32 %a, i32 *%src) {
18; CHECK: f2:
19; CHECK: a %r2, 0(%r3)
20; CHECK: br %r14
21 %b = load i32 *%src
22 %add = add i32 %a, %b
23 ret i32 %add
24}
25
26; Check the high end of the aligned A range.
27define i32 @f3(i32 %a, i32 *%src) {
28; CHECK: f3:
29; CHECK: a %r2, 4092(%r3)
30; CHECK: br %r14
31 %ptr = getelementptr i32 *%src, i64 1023
32 %b = load i32 *%ptr
33 %add = add i32 %a, %b
34 ret i32 %add
35}
36
37; Check the next word up, which should use AY instead of A.
38define i32 @f4(i32 %a, i32 *%src) {
39; CHECK: f4:
40; CHECK: ay %r2, 4096(%r3)
41; CHECK: br %r14
42 %ptr = getelementptr i32 *%src, i64 1024
43 %b = load i32 *%ptr
44 %add = add i32 %a, %b
45 ret i32 %add
46}
47
48; Check the high end of the aligned AY range.
49define i32 @f5(i32 %a, i32 *%src) {
50; CHECK: f5:
51; CHECK: ay %r2, 524284(%r3)
52; CHECK: br %r14
53 %ptr = getelementptr i32 *%src, i64 131071
54 %b = load i32 *%ptr
55 %add = add i32 %a, %b
56 ret i32 %add
57}
58
59; Check the next word up, which needs separate address logic.
60; Other sequences besides this one would be OK.
61define i32 @f6(i32 %a, i32 *%src) {
62; CHECK: f6:
63; CHECK: agfi %r3, 524288
64; CHECK: a %r2, 0(%r3)
65; CHECK: br %r14
66 %ptr = getelementptr i32 *%src, i64 131072
67 %b = load i32 *%ptr
68 %add = add i32 %a, %b
69 ret i32 %add
70}
71
72; Check the high end of the negative aligned AY range.
73define i32 @f7(i32 %a, i32 *%src) {
74; CHECK: f7:
75; CHECK: ay %r2, -4(%r3)
76; CHECK: br %r14
77 %ptr = getelementptr i32 *%src, i64 -1
78 %b = load i32 *%ptr
79 %add = add i32 %a, %b
80 ret i32 %add
81}
82
83; Check the low end of the AY range.
84define i32 @f8(i32 %a, i32 *%src) {
85; CHECK: f8:
86; CHECK: ay %r2, -524288(%r3)
87; CHECK: br %r14
88 %ptr = getelementptr i32 *%src, i64 -131072
89 %b = load i32 *%ptr
90 %add = add i32 %a, %b
91 ret i32 %add
92}
93
94; Check the next word down, which needs separate address logic.
95; Other sequences besides this one would be OK.
96define i32 @f9(i32 %a, i32 *%src) {
97; CHECK: f9:
98; CHECK: agfi %r3, -524292
99; CHECK: a %r2, 0(%r3)
100; CHECK: br %r14
101 %ptr = getelementptr i32 *%src, i64 -131073
102 %b = load i32 *%ptr
103 %add = add i32 %a, %b
104 ret i32 %add
105}
106
107; Check that A allows an index.
108define i32 @f10(i32 %a, i64 %src, i64 %index) {
109; CHECK: f10:
110; CHECK: a %r2, 4092({{%r4,%r3|%r3,%r4}})
111; CHECK: br %r14
112 %add1 = add i64 %src, %index
113 %add2 = add i64 %add1, 4092
114 %ptr = inttoptr i64 %add2 to i32 *
115 %b = load i32 *%ptr
116 %add = add i32 %a, %b
117 ret i32 %add
118}
119
120; Check that AY allows an index.
121define i32 @f11(i32 %a, i64 %src, i64 %index) {
122; CHECK: f11:
123; CHECK: ay %r2, 4096({{%r4,%r3|%r3,%r4}})
124; CHECK: br %r14
125 %add1 = add i64 %src, %index
126 %add2 = add i64 %add1, 4096
127 %ptr = inttoptr i64 %add2 to i32 *
128 %b = load i32 *%ptr
129 %add = add i32 %a, %b
130 ret i32 %add
131}
Richard Sandiforded1fab62013-07-03 10:10:02 +0000132
133; Check that additions of spilled values can use A rather than AR.
134define i32 @f12(i32 *%ptr0) {
135; CHECK: f12:
136; CHECK: brasl %r14, foo@PLT
137; CHECK: a %r2, 16{{[04]}}(%r15)
138; CHECK: br %r14
139 %ptr1 = getelementptr i32 *%ptr0, i64 2
140 %ptr2 = getelementptr i32 *%ptr0, i64 4
141 %ptr3 = getelementptr i32 *%ptr0, i64 6
142 %ptr4 = getelementptr i32 *%ptr0, i64 8
143 %ptr5 = getelementptr i32 *%ptr0, i64 10
144 %ptr6 = getelementptr i32 *%ptr0, i64 12
145 %ptr7 = getelementptr i32 *%ptr0, i64 14
146 %ptr8 = getelementptr i32 *%ptr0, i64 16
147 %ptr9 = getelementptr i32 *%ptr0, i64 18
148
149 %val0 = load i32 *%ptr0
150 %val1 = load i32 *%ptr1
151 %val2 = load i32 *%ptr2
152 %val3 = load i32 *%ptr3
153 %val4 = load i32 *%ptr4
154 %val5 = load i32 *%ptr5
155 %val6 = load i32 *%ptr6
156 %val7 = load i32 *%ptr7
157 %val8 = load i32 *%ptr8
158 %val9 = load i32 *%ptr9
159
160 %ret = call i32 @foo()
161
162 %add0 = add i32 %ret, %val0
163 %add1 = add i32 %add0, %val1
164 %add2 = add i32 %add1, %val2
165 %add3 = add i32 %add2, %val3
166 %add4 = add i32 %add3, %val4
167 %add5 = add i32 %add4, %val5
168 %add6 = add i32 %add5, %val6
169 %add7 = add i32 %add6, %val7
170 %add8 = add i32 %add7, %val8
171 %add9 = add i32 %add8, %val9
172
173 ret i32 %add9
174}