| blob | 51645ddebf1f76db63bb34ab5b22c3128126cdc3 |
1 ; Test multiplication of two f64s, producing an f128 result.
2 ;
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5 declare double @foo()
7 ; Check register multiplication. "mxdbr %f0, %f2" is not valid from LLVM's
8 ; point of view, because %f2 is the low register of the FP128 %f0. Pass the
9 ; multiplier in %f4 instead.
10 define void @f1(double %f1, double %dummy, double %f2, fp128 *%dst) {
11 ; CHECK-LABEL: f1:
12 ; CHECK: mxdbr %f0, %f4
13 ; CHECK: std %f0, 0(%r2)
14 ; CHECK: std %f2, 8(%r2)
15 ; CHECK: br %r14
16 %f1x = fpext double %f1 to fp128
17 %f2x = fpext double %f2 to fp128
18 %res = fmul fp128 %f1x, %f2x
19 store fp128 %res, fp128 *%dst
20 ret void
21 }
23 ; Check the low end of the MXDB range.
24 define void @f2(double %f1, double *%ptr, fp128 *%dst) {
25 ; CHECK-LABEL: f2:
26 ; CHECK: mxdb %f0, 0(%r2)
27 ; CHECK: std %f0, 0(%r3)
28 ; CHECK: std %f2, 8(%r3)
29 ; CHECK: br %r14
30 %f2 = load double, double *%ptr
31 %f1x = fpext double %f1 to fp128
32 %f2x = fpext double %f2 to fp128
33 %res = fmul fp128 %f1x, %f2x
34 store fp128 %res, fp128 *%dst
35 ret void
36 }
38 ; Check the high end of the aligned MXDB range.
39 define void @f3(double %f1, double *%base, fp128 *%dst) {
40 ; CHECK-LABEL: f3:
41 ; CHECK: mxdb %f0, 4088(%r2)
42 ; CHECK: std %f0, 0(%r3)
43 ; CHECK: std %f2, 8(%r3)
44 ; CHECK: br %r14
45 %ptr = getelementptr double, double *%base, i64 511
46 %f2 = load double, double *%ptr
47 %f1x = fpext double %f1 to fp128
48 %f2x = fpext double %f2 to fp128
49 %res = fmul fp128 %f1x, %f2x
50 store fp128 %res, fp128 *%dst
51 ret void
52 }
54 ; Check the next doubleword up, which needs separate address logic.
55 ; Other sequences besides this one would be OK.
56 define void @f4(double %f1, double *%base, fp128 *%dst) {
57 ; CHECK-LABEL: f4:
58 ; CHECK: aghi %r2, 4096
59 ; CHECK: mxdb %f0, 0(%r2)
60 ; CHECK: std %f0, 0(%r3)
61 ; CHECK: std %f2, 8(%r3)
62 ; CHECK: br %r14
63 %ptr = getelementptr double, double *%base, i64 512
64 %f2 = load double, double *%ptr
65 %f1x = fpext double %f1 to fp128
66 %f2x = fpext double %f2 to fp128
67 %res = fmul fp128 %f1x, %f2x
68 store fp128 %res, fp128 *%dst
69 ret void
70 }
72 ; Check negative displacements, which also need separate address logic.
73 define void @f5(double %f1, double *%base, fp128 *%dst) {
74 ; CHECK-LABEL: f5:
75 ; CHECK: aghi %r2, -8
76 ; CHECK: mxdb %f0, 0(%r2)
77 ; CHECK: std %f0, 0(%r3)
78 ; CHECK: std %f2, 8(%r3)
79 ; CHECK: br %r14
80 %ptr = getelementptr double, double *%base, i64 -1
81 %f2 = load double, double *%ptr
82 %f1x = fpext double %f1 to fp128
83 %f2x = fpext double %f2 to fp128
84 %res = fmul fp128 %f1x, %f2x
85 store fp128 %res, fp128 *%dst
86 ret void
87 }
89 ; Check that MXDB allows indices.
90 define void @f6(double %f1, double *%base, i64 %index, fp128 *%dst) {
91 ; CHECK-LABEL: f6:
92 ; CHECK: sllg %r1, %r3, 3
93 ; CHECK: mxdb %f0, 800(%r1,%r2)
94 ; CHECK: std %f0, 0(%r4)
95 ; CHECK: std %f2, 8(%r4)
96 ; CHECK: br %r14
97 %ptr1 = getelementptr double, double *%base, i64 %index
98 %ptr2 = getelementptr double, double *%ptr1, i64 100
99 %f2 = load double, double *%ptr2
100 %f1x = fpext double %f1 to fp128
101 %f2x = fpext double %f2 to fp128
102 %res = fmul fp128 %f1x, %f2x
103 store fp128 %res, fp128 *%dst
104 ret void
105 }
107 ; Check that multiplications of spilled values can use MXDB rather than MXDBR.
108 define double @f7(double *%ptr0) {
109 ; CHECK-LABEL: f7:
110 ; CHECK: brasl %r14, foo@PLT
111 ; CHECK: mxdb %f0, 160(%r15)
112 ; CHECK: br %r14
113 %ptr1 = getelementptr double, double *%ptr0, i64 2
114 %ptr2 = getelementptr double, double *%ptr0, i64 4
115 %ptr3 = getelementptr double, double *%ptr0, i64 6
116 %ptr4 = getelementptr double, double *%ptr0, i64 8
117 %ptr5 = getelementptr double, double *%ptr0, i64 10
118 %ptr6 = getelementptr double, double *%ptr0, i64 12
119 %ptr7 = getelementptr double, double *%ptr0, i64 14
120 %ptr8 = getelementptr double, double *%ptr0, i64 16
121 %ptr9 = getelementptr double, double *%ptr0, i64 18
122 %ptr10 = getelementptr double, double *%ptr0, i64 20
124 %val0 = load double, double *%ptr0
125 %val1 = load double, double *%ptr1
126 %val2 = load double, double *%ptr2
127 %val3 = load double, double *%ptr3
128 %val4 = load double, double *%ptr4
129 %val5 = load double, double *%ptr5
130 %val6 = load double, double *%ptr6
131 %val7 = load double, double *%ptr7
132 %val8 = load double, double *%ptr8
133 %val9 = load double, double *%ptr9
134 %val10 = load double, double *%ptr10
136 %frob0 = fadd double %val0, %val0
137 %frob1 = fadd double %val1, %val1
138 %frob2 = fadd double %val2, %val2
139 %frob3 = fadd double %val3, %val3
140 %frob4 = fadd double %val4, %val4
141 %frob5 = fadd double %val5, %val5
142 %frob6 = fadd double %val6, %val6
143 %frob7 = fadd double %val7, %val7
144 %frob8 = fadd double %val8, %val8
145 %frob9 = fadd double %val9, %val9
146 %frob10 = fadd double %val9, %val10
148 store double %frob0, double *%ptr0
149 store double %frob1, double *%ptr1
150 store double %frob2, double *%ptr2
151 store double %frob3, double *%ptr3
152 store double %frob4, double *%ptr4
153 store double %frob5, double *%ptr5
154 store double %frob6, double *%ptr6
155 store double %frob7, double *%ptr7
156 store double %frob8, double *%ptr8
157 store double %frob9, double *%ptr9
158 store double %frob10, double *%ptr10
160 %ret = call double @foo()
162 %accext0 = fpext double %ret to fp128
163 %ext0 = fpext double %frob0 to fp128
164 %mul0 = fmul fp128 %accext0, %ext0
165 %const0 = fpext double 1.01 to fp128
166 %extra0 = fmul fp128 %mul0, %const0
167 %trunc0 = fptrunc fp128 %extra0 to double
169 %accext1 = fpext double %trunc0 to fp128
170 %ext1 = fpext double %frob1 to fp128
171 %mul1 = fmul fp128 %accext1, %ext1
172 %const1 = fpext double 1.11 to fp128
173 %extra1 = fmul fp128 %mul1, %const1
174 %trunc1 = fptrunc fp128 %extra1 to double
176 %accext2 = fpext double %trunc1 to fp128
177 %ext2 = fpext double %frob2 to fp128
178 %mul2 = fmul fp128 %accext2, %ext2
179 %const2 = fpext double 1.21 to fp128
180 %extra2 = fmul fp128 %mul2, %const2
181 %trunc2 = fptrunc fp128 %extra2 to double
183 %accext3 = fpext double %trunc2 to fp128
184 %ext3 = fpext double %frob3 to fp128
185 %mul3 = fmul fp128 %accext3, %ext3
186 %const3 = fpext double 1.31 to fp128
187 %extra3 = fmul fp128 %mul3, %const3
188 %trunc3 = fptrunc fp128 %extra3 to double
190 %accext4 = fpext double %trunc3 to fp128
191 %ext4 = fpext double %frob4 to fp128
192 %mul4 = fmul fp128 %accext4, %ext4
193 %const4 = fpext double 1.41 to fp128
194 %extra4 = fmul fp128 %mul4, %const4
195 %trunc4 = fptrunc fp128 %extra4 to double
197 %accext5 = fpext double %trunc4 to fp128
198 %ext5 = fpext double %frob5 to fp128
199 %mul5 = fmul fp128 %accext5, %ext5
200 %const5 = fpext double 1.51 to fp128
201 %extra5 = fmul fp128 %mul5, %const5
202 %trunc5 = fptrunc fp128 %extra5 to double
204 %accext6 = fpext double %trunc5 to fp128
205 %ext6 = fpext double %frob6 to fp128
206 %mul6 = fmul fp128 %accext6, %ext6
207 %const6 = fpext double 1.61 to fp128
208 %extra6 = fmul fp128 %mul6, %const6
209 %trunc6 = fptrunc fp128 %extra6 to double
211 %accext7 = fpext double %trunc6 to fp128
212 %ext7 = fpext double %frob7 to fp128
213 %mul7 = fmul fp128 %accext7, %ext7
214 %const7 = fpext double 1.71 to fp128
215 %extra7 = fmul fp128 %mul7, %const7
216 %trunc7 = fptrunc fp128 %extra7 to double
218 %accext8 = fpext double %trunc7 to fp128
219 %ext8 = fpext double %frob8 to fp128
220 %mul8 = fmul fp128 %accext8, %ext8
221 %const8 = fpext double 1.81 to fp128
222 %extra8 = fmul fp128 %mul8, %const8
223 %trunc8 = fptrunc fp128 %extra8 to double
225 %accext9 = fpext double %trunc8 to fp128
226 %ext9 = fpext double %frob9 to fp128
227 %mul9 = fmul fp128 %accext9, %ext9
228 %const9 = fpext double 1.91 to fp128
229 %extra9 = fmul fp128 %mul9, %const9
230 %trunc9 = fptrunc fp128 %extra9 to double
232 ret double %trunc9
233 }