1 ; Test zero 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) {
8 ; CHECK: llgfr %r2, %r2
10 %ext = zext i32 %a to i64
14 ; ...and again with an i64.
15 define i64 @f2(i64 %a) {
17 ; CHECK: llgfr %r2, %r2
19 %word = trunc i64 %a to i32
20 %ext = zext i32 %word to i64
24 ; Check ANDs that are equivalent to zero extension.
25 define i64 @f3(i64 %a) {
27 ; CHECK: llgfr %r2, %r2
29 %ext = and i64 %a, 4294967295
33 ; Check LLGF with no displacement.
34 define i64 @f4(i32 *%src) {
36 ; CHECK: llgf %r2, 0(%r2)
38 %word = load i32 *%src
39 %ext = zext i32 %word to i64
43 ; Check the high end of the LLGF range.
44 define i64 @f5(i32 *%src) {
46 ; CHECK: llgf %r2, 524284(%r2)
48 %ptr = getelementptr i32 *%src, i64 131071
49 %word = load i32 *%ptr
50 %ext = zext i32 %word to i64
54 ; Check the next word up, which needs separate address logic.
55 ; Other sequences besides this one would be OK.
56 define i64 @f6(i32 *%src) {
58 ; CHECK: agfi %r2, 524288
59 ; CHECK: llgf %r2, 0(%r2)
61 %ptr = getelementptr i32 *%src, i64 131072
62 %word = load i32 *%ptr
63 %ext = zext i32 %word to i64
67 ; Check the high end of the negative LLGF range.
68 define i64 @f7(i32 *%src) {
70 ; CHECK: llgf %r2, -4(%r2)
72 %ptr = getelementptr i32 *%src, i64 -1
73 %word = load i32 *%ptr
74 %ext = zext i32 %word to i64
78 ; Check the low end of the LLGF range.
79 define i64 @f8(i32 *%src) {
81 ; CHECK: llgf %r2, -524288(%r2)
83 %ptr = getelementptr i32 *%src, i64 -131072
84 %word = load i32 *%ptr
85 %ext = zext i32 %word to i64
89 ; Check the next word down, which needs separate address logic.
90 ; Other sequences besides this one would be OK.
91 define i64 @f9(i32 *%src) {
93 ; CHECK: agfi %r2, -524292
94 ; CHECK: llgf %r2, 0(%r2)
96 %ptr = getelementptr i32 *%src, i64 -131073
97 %word = load i32 *%ptr
98 %ext = zext i32 %word to i64
102 ; Check that LLGF allows an index.
103 define i64 @f10(i64 %src, i64 %index) {
105 ; CHECK: llgf %r2, 524287(%r3,%r2)
107 %add1 = add i64 %src, %index
108 %add2 = add i64 %add1, 524287
109 %ptr = inttoptr i64 %add2 to i32 *
110 %word = load i32 *%ptr
111 %ext = zext i32 %word to i64
115 ; Test a case where we spill the source of at least one LLGFR. We want
116 ; to use LLGF if possible.
117 define void @f11(i64 *%ptr1, i32 *%ptr2) {
119 ; CHECK: llgf {{%r[0-9]+}}, 16{{[04]}}(%r15)
121 %val0 = load volatile i32 *%ptr2
122 %val1 = load volatile i32 *%ptr2
123 %val2 = load volatile i32 *%ptr2
124 %val3 = load volatile i32 *%ptr2
125 %val4 = load volatile i32 *%ptr2
126 %val5 = load volatile i32 *%ptr2
127 %val6 = load volatile i32 *%ptr2
128 %val7 = load volatile i32 *%ptr2
129 %val8 = load volatile i32 *%ptr2
130 %val9 = load volatile i32 *%ptr2
131 %val10 = load volatile i32 *%ptr2
132 %val11 = load volatile i32 *%ptr2
133 %val12 = load volatile i32 *%ptr2
134 %val13 = load volatile i32 *%ptr2
135 %val14 = load volatile i32 *%ptr2
136 %val15 = load volatile i32 *%ptr2
138 %ext0 = zext i32 %val0 to i64
139 %ext1 = zext i32 %val1 to i64
140 %ext2 = zext i32 %val2 to i64
141 %ext3 = zext i32 %val3 to i64
142 %ext4 = zext i32 %val4 to i64
143 %ext5 = zext i32 %val5 to i64
144 %ext6 = zext i32 %val6 to i64
145 %ext7 = zext i32 %val7 to i64
146 %ext8 = zext i32 %val8 to i64
147 %ext9 = zext i32 %val9 to i64
148 %ext10 = zext i32 %val10 to i64
149 %ext11 = zext i32 %val11 to i64
150 %ext12 = zext i32 %val12 to i64
151 %ext13 = zext i32 %val13 to i64
152 %ext14 = zext i32 %val14 to i64
153 %ext15 = zext i32 %val15 to i64
155 store volatile i32 %val0, i32 *%ptr2
156 store volatile i32 %val1, i32 *%ptr2
157 store volatile i32 %val2, i32 *%ptr2
158 store volatile i32 %val3, i32 *%ptr2
159 store volatile i32 %val4, i32 *%ptr2
160 store volatile i32 %val5, i32 *%ptr2
161 store volatile i32 %val6, i32 *%ptr2
162 store volatile i32 %val7, i32 *%ptr2
163 store volatile i32 %val8, i32 *%ptr2
164 store volatile i32 %val9, i32 *%ptr2
165 store volatile i32 %val10, i32 *%ptr2
166 store volatile i32 %val11, i32 *%ptr2
167 store volatile i32 %val12, i32 *%ptr2
168 store volatile i32 %val13, i32 *%ptr2
169 store volatile i32 %val14, i32 *%ptr2
170 store volatile i32 %val15, i32 *%ptr2
172 store volatile i64 %ext0, i64 *%ptr1
173 store volatile i64 %ext1, i64 *%ptr1
174 store volatile i64 %ext2, i64 *%ptr1
175 store volatile i64 %ext3, i64 *%ptr1
176 store volatile i64 %ext4, i64 *%ptr1
177 store volatile i64 %ext5, i64 *%ptr1
178 store volatile i64 %ext6, i64 *%ptr1
179 store volatile i64 %ext7, i64 *%ptr1
180 store volatile i64 %ext8, i64 *%ptr1
181 store volatile i64 %ext9, i64 *%ptr1
182 store volatile i64 %ext10, i64 *%ptr1
183 store volatile i64 %ext11, i64 *%ptr1
184 store volatile i64 %ext12, i64 *%ptr1
185 store volatile i64 %ext13, i64 *%ptr1
186 store volatile i64 %ext14, i64 *%ptr1
187 store volatile i64 %ext15, i64 *%ptr1