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
|
; Test 32-bit multiplication in which the second operand is variable.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
declare i32 @foo()
; Check MSR.
define i32 @f1(i32 %a, i32 %b) {
; CHECK-LABEL: f1:
; CHECK: msr %r2, %r3
; CHECK: br %r14
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the low end of the MS range.
define i32 @f2(i32 %a, i32 *%src) {
; CHECK-LABEL: f2:
; CHECK: ms %r2, 0(%r3)
; CHECK: br %r14
%b = load i32 , i32 *%src
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the high end of the aligned MS range.
define i32 @f3(i32 %a, i32 *%src) {
; CHECK-LABEL: f3:
; CHECK: ms %r2, 4092(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 1023
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the next word up, which should use MSY instead of MS.
define i32 @f4(i32 %a, i32 *%src) {
; CHECK-LABEL: f4:
; CHECK: msy %r2, 4096(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 1024
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the high end of the aligned MSY range.
define i32 @f5(i32 %a, i32 *%src) {
; CHECK-LABEL: f5:
; CHECK: msy %r2, 524284(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 131071
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the next word up, which needs separate address logic.
; Other sequences besides this one would be OK.
define i32 @f6(i32 %a, i32 *%src) {
; CHECK-LABEL: f6:
; CHECK: agfi %r3, 524288
; CHECK: ms %r2, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 131072
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the high end of the negative aligned MSY range.
define i32 @f7(i32 %a, i32 *%src) {
; CHECK-LABEL: f7:
; CHECK: msy %r2, -4(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 -1
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the low end of the MSY range.
define i32 @f8(i32 %a, i32 *%src) {
; CHECK-LABEL: f8:
; CHECK: msy %r2, -524288(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 -131072
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check the next word down, which needs separate address logic.
; Other sequences besides this one would be OK.
define i32 @f9(i32 %a, i32 *%src) {
; CHECK-LABEL: f9:
; CHECK: agfi %r3, -524292
; CHECK: ms %r2, 0(%r3)
; CHECK: br %r14
%ptr = getelementptr i32, i32 *%src, i64 -131073
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check that MS allows an index.
define i32 @f10(i32 %a, i64 %src, i64 %index) {
; CHECK-LABEL: f10:
; CHECK: ms %r2, 4092({{%r4,%r3|%r3,%r4}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 4092
%ptr = inttoptr i64 %add2 to i32 *
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check that MSY allows an index.
define i32 @f11(i32 %a, i64 %src, i64 %index) {
; CHECK-LABEL: f11:
; CHECK: msy %r2, 4096({{%r4,%r3|%r3,%r4}})
; CHECK: br %r14
%add1 = add i64 %src, %index
%add2 = add i64 %add1, 4096
%ptr = inttoptr i64 %add2 to i32 *
%b = load i32 , i32 *%ptr
%mul = mul i32 %a, %b
ret i32 %mul
}
; Check that multiplications of spilled values can use MS rather than MSR.
define i32 @f12(i32 *%ptr0) {
; CHECK-LABEL: f12:
; CHECK: brasl %r14, foo@PLT
; CHECK: ms %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
%ret = call i32 @foo()
%mul0 = mul i32 %ret, %val0
%mul1 = mul i32 %mul0, %val1
%mul2 = mul i32 %mul1, %val2
%mul3 = mul i32 %mul2, %val3
%mul4 = mul i32 %mul3, %val4
%mul5 = mul i32 %mul4, %val5
%mul6 = mul i32 %mul5, %val6
%mul7 = mul i32 %mul6, %val7
%mul8 = mul i32 %mul7, %val8
%mul9 = mul i32 %mul8, %val9
ret i32 %mul9
}
|
