1 ; Test sign extensions from an i32 to an i64.
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5 ; Test register extension, starting with an i32.
6 define i64 @f1(i32 %a) {
10 %ext = sext i32 %a to i64
14 ; ...and again with an i64.
15 define i64 @f2(i64 %a) {
17 ; CHECK: lgfr %r2, %r2
19 %word = trunc i64 %a to i32
20 %ext = sext i32 %word to i64
24 ; Check LGF with no displacement.
25 define i64 @f3(i32 *%src) {
27 ; CHECK: lgf %r2, 0(%r2)
29 %word = load i32 *%src
30 %ext = sext i32 %word to i64
34 ; Check the high end of the LGF range.
35 define i64 @f4(i32 *%src) {
37 ; CHECK: lgf %r2, 524284(%r2)
39 %ptr = getelementptr i32 *%src, i64 131071
40 %word = load i32 *%ptr
41 %ext = sext i32 %word to i64
45 ; Check the next word up, which needs separate address logic.
46 ; Other sequences besides this one would be OK.
47 define i64 @f5(i32 *%src) {
49 ; CHECK: agfi %r2, 524288
50 ; CHECK: lgf %r2, 0(%r2)
52 %ptr = getelementptr i32 *%src, i64 131072
53 %word = load i32 *%ptr
54 %ext = sext i32 %word to i64
58 ; Check the high end of the negative LGF range.
59 define i64 @f6(i32 *%src) {
61 ; CHECK: lgf %r2, -4(%r2)
63 %ptr = getelementptr i32 *%src, i64 -1
64 %word = load i32 *%ptr
65 %ext = sext i32 %word to i64
69 ; Check the low end of the LGF range.
70 define i64 @f7(i32 *%src) {
72 ; CHECK: lgf %r2, -524288(%r2)
74 %ptr = getelementptr i32 *%src, i64 -131072
75 %word = load i32 *%ptr
76 %ext = sext i32 %word to i64
80 ; Check the next word down, which needs separate address logic.
81 ; Other sequences besides this one would be OK.
82 define i64 @f8(i32 *%src) {
84 ; CHECK: agfi %r2, -524292
85 ; CHECK: lgf %r2, 0(%r2)
87 %ptr = getelementptr i32 *%src, i64 -131073
88 %word = load i32 *%ptr
89 %ext = sext i32 %word to i64
93 ; Check that LGF allows an index.
94 define i64 @f9(i64 %src, i64 %index) {
96 ; CHECK: lgf %r2, 524287(%r3,%r2)
98 %add1 = add i64 %src, %index
99 %add2 = add i64 %add1, 524287
100 %ptr = inttoptr i64 %add2 to i32 *
101 %word = load i32 *%ptr
102 %ext = sext i32 %word to i64
106 ; Test a case where we spill the source of at least one LGFR. We want
107 ; to use LGF if possible.
108 define void @f10(i64 *%ptr1, i32 *%ptr2) {
110 ; CHECK: lgf {{%r[0-9]+}}, 16{{[04]}}(%r15)
112 %val0 = load volatile i32 *%ptr2
113 %val1 = load volatile i32 *%ptr2
114 %val2 = load volatile i32 *%ptr2
115 %val3 = load volatile i32 *%ptr2
116 %val4 = load volatile i32 *%ptr2
117 %val5 = load volatile i32 *%ptr2
118 %val6 = load volatile i32 *%ptr2
119 %val7 = load volatile i32 *%ptr2
120 %val8 = load volatile i32 *%ptr2
121 %val9 = load volatile i32 *%ptr2
122 %val10 = load volatile i32 *%ptr2
123 %val11 = load volatile i32 *%ptr2
124 %val12 = load volatile i32 *%ptr2
125 %val13 = load volatile i32 *%ptr2
126 %val14 = load volatile i32 *%ptr2
127 %val15 = load volatile i32 *%ptr2
129 %ext0 = sext i32 %val0 to i64
130 %ext1 = sext i32 %val1 to i64
131 %ext2 = sext i32 %val2 to i64
132 %ext3 = sext i32 %val3 to i64
133 %ext4 = sext i32 %val4 to i64
134 %ext5 = sext i32 %val5 to i64
135 %ext6 = sext i32 %val6 to i64
136 %ext7 = sext i32 %val7 to i64
137 %ext8 = sext i32 %val8 to i64
138 %ext9 = sext i32 %val9 to i64
139 %ext10 = sext i32 %val10 to i64
140 %ext11 = sext i32 %val11 to i64
141 %ext12 = sext i32 %val12 to i64
142 %ext13 = sext i32 %val13 to i64
143 %ext14 = sext i32 %val14 to i64
144 %ext15 = sext i32 %val15 to i64
146 store volatile i32 %val0, i32 *%ptr2
147 store volatile i32 %val1, i32 *%ptr2
148 store volatile i32 %val2, i32 *%ptr2
149 store volatile i32 %val3, i32 *%ptr2
150 store volatile i32 %val4, i32 *%ptr2
151 store volatile i32 %val5, i32 *%ptr2
152 store volatile i32 %val6, i32 *%ptr2
153 store volatile i32 %val7, i32 *%ptr2
154 store volatile i32 %val8, i32 *%ptr2
155 store volatile i32 %val9, i32 *%ptr2
156 store volatile i32 %val10, i32 *%ptr2
157 store volatile i32 %val11, i32 *%ptr2
158 store volatile i32 %val12, i32 *%ptr2
159 store volatile i32 %val13, i32 *%ptr2
160 store volatile i32 %val14, i32 *%ptr2
161 store volatile i32 %val15, i32 *%ptr2
163 store volatile i64 %ext0, i64 *%ptr1
164 store volatile i64 %ext1, i64 *%ptr1
165 store volatile i64 %ext2, i64 *%ptr1
166 store volatile i64 %ext3, i64 *%ptr1
167 store volatile i64 %ext4, i64 *%ptr1
168 store volatile i64 %ext5, i64 *%ptr1
169 store volatile i64 %ext6, i64 *%ptr1
170 store volatile i64 %ext7, i64 *%ptr1
171 store volatile i64 %ext8, i64 *%ptr1
172 store volatile i64 %ext9, i64 *%ptr1
173 store volatile i64 %ext10, i64 *%ptr1
174 store volatile i64 %ext11, i64 *%ptr1
175 store volatile i64 %ext12, i64 *%ptr1
176 store volatile i64 %ext13, i64 *%ptr1
177 store volatile i64 %ext14, i64 *%ptr1
178 store volatile i64 %ext15, i64 *%ptr1