1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
; Test multiplications between an i64 and a sign-extended i32.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare i64 @foo()
; Check MSGFR.
define i64 @f1(i64 %a, i32 %b) {
; CHECK-LABEL: f1:
; CHECK: msgfr %r2, %r3
; CHECK: br %r14
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check MSGF with no displacement.
define i64 @f2(i64 %a, i32 *%src) {
; CHECK-LABEL: f2:
; CHECK: msgf %r2, 0(%r3)
; CHECK: br %r14
%b = load i32 , i32 *%src
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check the high end of the aligned MSGF range.
define i64 @f3(i64 %a, i32 *%src) {
; CHECK-LABEL: f3:
; CHECK: msgf %r2, 524284(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 131071
%b = load i32 , i32 *%ptr
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define i64 @f4(i64 %a, i32 *%src) {
; CHECK-LABEL: f4:
; CHECK: agfi %r3, 524288
; CHECK: msgf %r2, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 131072
%b = load i32 , i32 *%ptr
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check the high end of the negative aligned MSGF range.
define i64 @f5(i64 %a, i32 *%src) {
; CHECK-LABEL: f5:
; CHECK: msgf %r2, -4(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 -1
%b = load i32 , i32 *%ptr
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check the low end of the MSGF range.
define i64 @f6(i64 %a, i32 *%src) {
; CHECK-LABEL: f6:
; CHECK: msgf %r2, -524288(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 -131072
%b = load i32 , i32 *%ptr
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check the next word down, which needs separate address logic.
; Other sequences besides this one would be OK.
define i64 @f7(i64 %a, i32 *%src) {
; CHECK-LABEL: f7:
; CHECK: agfi %r3, -524292
; CHECK: msgf %r2, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 -131073
%b = load i32 , i32 *%ptr
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check that MSGF allows an index.
define i64 @f8(i64 %a, i64 %src, i64 %index) {
; CHECK-LABEL: f8:
; CHECK: msgf %r2, 524284({{%r4,%r3|%r3,%r4}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 524284
%ptr = inttoptr i64 %add2 to i32 *
%b = load i32 , i32 *%ptr
%bext = sext i32 %b to i64
%mul = mul i64 %a, %bext
ret i64 %mul
}
; Check that multiplications of spilled values can use MSGF rather than MSGFR.
define i64 @f9(i32 *%ptr0) {
; CHECK-LABEL: f9:
; CHECK: brasl %r14, foo@PLT
; CHECK: msgf %r2, 16{{[04]}}(%r15)
; CHECK: br %r14
%ptr1 = getelementptr i32, i32 *%ptr0, i64 2
%ptr2 = getelementptr i32, i32 *%ptr0, i64 4
%ptr3 = getelementptr i32, i32 *%ptr0, i64 6
%ptr4 = getelementptr i32, i32 *%ptr0, i64 8
%ptr5 = getelementptr i32, i32 *%ptr0, i64 10
%ptr6 = getelementptr i32, i32 *%ptr0, i64 12
%ptr7 = getelementptr i32, i32 *%ptr0, i64 14
%ptr8 = getelementptr i32, i32 *%ptr0, i64 16
%ptr9 = getelementptr i32, i32 *%ptr0, i64 18
%val0 = load i32 , i32 *%ptr0
%val1 = load i32 , i32 *%ptr1
%val2 = load i32 , i32 *%ptr2
%val3 = load i32 , i32 *%ptr3
%val4 = load i32 , i32 *%ptr4
%val5 = load i32 , i32 *%ptr5
%val6 = load i32 , i32 *%ptr6
%val7 = load i32 , i32 *%ptr7
%val8 = load i32 , i32 *%ptr8
%val9 = load i32 , i32 *%ptr9
%frob0 = add i32 %val0, 100
%frob1 = add i32 %val1, 100
%frob2 = add i32 %val2, 100
%frob3 = add i32 %val3, 100
%frob4 = add i32 %val4, 100
%frob5 = add i32 %val5, 100
%frob6 = add i32 %val6, 100
%frob7 = add i32 %val7, 100
%frob8 = add i32 %val8, 100
%frob9 = add i32 %val9, 100
store i32 %frob0, i32 *%ptr0
store i32 %frob1, i32 *%ptr1
store i32 %frob2, i32 *%ptr2
store i32 %frob3, i32 *%ptr3
store i32 %frob4, i32 *%ptr4
store i32 %frob5, i32 *%ptr5
store i32 %frob6, i32 *%ptr6
store i32 %frob7, i32 *%ptr7
store i32 %frob8, i32 *%ptr8
store i32 %frob9, i32 *%ptr9
%ret = call i64 @foo()
%ext0 = sext i32 %frob0 to i64
%ext1 = sext i32 %frob1 to i64
%ext2 = sext i32 %frob2 to i64
%ext3 = sext i32 %frob3 to i64
%ext4 = sext i32 %frob4 to i64
%ext5 = sext i32 %frob5 to i64
%ext6 = sext i32 %frob6 to i64
%ext7 = sext i32 %frob7 to i64
%ext8 = sext i32 %frob8 to i64
%ext9 = sext i32 %frob9 to i64
%mul0 = mul i64 %ret, %ext0
%mul1 = mul i64 %mul0, %ext1
%mul2 = mul i64 %mul1, %ext2
%mul3 = mul i64 %mul2, %ext3
%mul4 = mul i64 %mul3, %ext4
%mul5 = mul i64 %mul4, %ext5
%mul6 = mul i64 %mul5, %ext6
%mul7 = mul i64 %mul6, %ext7
%mul8 = mul i64 %mul7, %ext8
%mul9 = mul i64 %mul8, %ext9
ret i64 %mul9
}
|
