| blob | 99bf618c7e89bfe19180e3465e047c6f6a13521f |
1 ; Test extensions of f64 to f128.
2 ;
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5 ; Check register extension.
6 define void @f1(fp128 *%dst, double %val) {
7 ; CHECK-LABEL: f1:
8 ; CHECK: lxdbr %f0, %f0
9 ; CHECK: std %f0, 0(%r2)
10 ; CHECK: std %f2, 8(%r2)
11 ; CHECK: br %r14
12 %res = fpext double %val to fp128
13 store fp128 %res, fp128 *%dst
14 ret void
15 }
17 ; Check the low end of the LXDB range.
18 define void @f2(fp128 *%dst, double *%ptr) {
19 ; CHECK-LABEL: f2:
20 ; CHECK: lxdb %f0, 0(%r3)
21 ; CHECK: std %f0, 0(%r2)
22 ; CHECK: std %f2, 8(%r2)
23 ; CHECK: br %r14
24 %val = load double, double *%ptr
25 %res = fpext double %val to fp128
26 store fp128 %res, fp128 *%dst
27 ret void
28 }
30 ; Check the high end of the aligned LXDB range.
31 define void @f3(fp128 *%dst, double *%base) {
32 ; CHECK-LABEL: f3:
33 ; CHECK: lxdb %f0, 4088(%r3)
34 ; CHECK: std %f0, 0(%r2)
35 ; CHECK: std %f2, 8(%r2)
36 ; CHECK: br %r14
37 %ptr = getelementptr double, double *%base, i64 511
38 %val = load double, double *%ptr
39 %res = fpext double %val to fp128
40 store fp128 %res, fp128 *%dst
41 ret void
42 }
44 ; Check the next doubleword up, which needs separate address logic.
45 ; Other sequences besides this one would be OK.
46 define void @f4(fp128 *%dst, double *%base) {
47 ; CHECK-LABEL: f4:
48 ; CHECK: aghi %r3, 4096
49 ; CHECK: lxdb %f0, 0(%r3)
50 ; CHECK: std %f0, 0(%r2)
51 ; CHECK: std %f2, 8(%r2)
52 ; CHECK: br %r14
53 %ptr = getelementptr double, double *%base, i64 512
54 %val = load double, double *%ptr
55 %res = fpext double %val to fp128
56 store fp128 %res, fp128 *%dst
57 ret void
58 }
60 ; Check negative displacements, which also need separate address logic.
61 define void @f5(fp128 *%dst, double *%base) {
62 ; CHECK-LABEL: f5:
63 ; CHECK: aghi %r3, -8
64 ; CHECK: lxdb %f0, 0(%r3)
65 ; CHECK: std %f0, 0(%r2)
66 ; CHECK: std %f2, 8(%r2)
67 ; CHECK: br %r14
68 %ptr = getelementptr double, double *%base, i64 -1
69 %val = load double, double *%ptr
70 %res = fpext double %val to fp128
71 store fp128 %res, fp128 *%dst
72 ret void
73 }
75 ; Check that LXDB allows indices.
76 define void @f6(fp128 *%dst, double *%base, i64 %index) {
77 ; CHECK-LABEL: f6:
78 ; CHECK: sllg %r1, %r4, 3
79 ; CHECK: lxdb %f0, 800(%r1,%r3)
80 ; CHECK: std %f0, 0(%r2)
81 ; CHECK: std %f2, 8(%r2)
82 ; CHECK: br %r14
83 %ptr1 = getelementptr double, double *%base, i64 %index
84 %ptr2 = getelementptr double, double *%ptr1, i64 100
85 %val = load double, double *%ptr2
86 %res = fpext double %val to fp128
87 store fp128 %res, fp128 *%dst
88 ret void
89 }
91 ; Test a case where we spill the source of at least one LXDBR. We want
92 ; to use LXDB if possible.
93 define void @f7(fp128 *%ptr1, double *%ptr2) {
94 ; CHECK-LABEL: f7:
95 ; CHECK: lxdb {{%f[0-9]+}}, 160(%r15)
96 ; CHECK: br %r14
97 %val0 = load volatile double, double *%ptr2
98 %val1 = load volatile double, double *%ptr2
99 %val2 = load volatile double, double *%ptr2
100 %val3 = load volatile double, double *%ptr2
101 %val4 = load volatile double, double *%ptr2
102 %val5 = load volatile double, double *%ptr2
103 %val6 = load volatile double, double *%ptr2
104 %val7 = load volatile double, double *%ptr2
105 %val8 = load volatile double, double *%ptr2
106 %val9 = load volatile double, double *%ptr2
107 %val10 = load volatile double, double *%ptr2
108 %val11 = load volatile double, double *%ptr2
109 %val12 = load volatile double, double *%ptr2
110 %val13 = load volatile double, double *%ptr2
111 %val14 = load volatile double, double *%ptr2
112 %val15 = load volatile double, double *%ptr2
113 %val16 = load volatile double, double *%ptr2
115 %ext0 = fpext double %val0 to fp128
116 %ext1 = fpext double %val1 to fp128
117 %ext2 = fpext double %val2 to fp128
118 %ext3 = fpext double %val3 to fp128
119 %ext4 = fpext double %val4 to fp128
120 %ext5 = fpext double %val5 to fp128
121 %ext6 = fpext double %val6 to fp128
122 %ext7 = fpext double %val7 to fp128
123 %ext8 = fpext double %val8 to fp128
124 %ext9 = fpext double %val9 to fp128
125 %ext10 = fpext double %val10 to fp128
126 %ext11 = fpext double %val11 to fp128
127 %ext12 = fpext double %val12 to fp128
128 %ext13 = fpext double %val13 to fp128
129 %ext14 = fpext double %val14 to fp128
130 %ext15 = fpext double %val15 to fp128
131 %ext16 = fpext double %val16 to fp128
133 store volatile double %val0, double *%ptr2
134 store volatile double %val1, double *%ptr2
135 store volatile double %val2, double *%ptr2
136 store volatile double %val3, double *%ptr2
137 store volatile double %val4, double *%ptr2
138 store volatile double %val5, double *%ptr2
139 store volatile double %val6, double *%ptr2
140 store volatile double %val7, double *%ptr2
141 store volatile double %val8, double *%ptr2
142 store volatile double %val9, double *%ptr2
143 store volatile double %val10, double *%ptr2
144 store volatile double %val11, double *%ptr2
145 store volatile double %val12, double *%ptr2
146 store volatile double %val13, double *%ptr2
147 store volatile double %val14, double *%ptr2
148 store volatile double %val15, double *%ptr2
149 store volatile double %val16, double *%ptr2
151 store volatile fp128 %ext0, fp128 *%ptr1
152 store volatile fp128 %ext1, fp128 *%ptr1
153 store volatile fp128 %ext2, fp128 *%ptr1
154 store volatile fp128 %ext3, fp128 *%ptr1
155 store volatile fp128 %ext4, fp128 *%ptr1
156 store volatile fp128 %ext5, fp128 *%ptr1
157 store volatile fp128 %ext6, fp128 *%ptr1
158 store volatile fp128 %ext7, fp128 *%ptr1
159 store volatile fp128 %ext8, fp128 *%ptr1
160 store volatile fp128 %ext9, fp128 *%ptr1
161 store volatile fp128 %ext10, fp128 *%ptr1
162 store volatile fp128 %ext11, fp128 *%ptr1
163 store volatile fp128 %ext12, fp128 *%ptr1
164 store volatile fp128 %ext13, fp128 *%ptr1
165 store volatile fp128 %ext14, fp128 *%ptr1
166 store volatile fp128 %ext15, fp128 *%ptr1
167 store volatile fp128 %ext16, fp128 *%ptr1
169 ret void
170 }