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
|
; Test incoming GPR, FPR and stack arguments when no extension type is given.
; This type of argument is used for passing structures, etc.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -verify-machineinstrs | FileCheck %s
; Do some arithmetic so that we can see the register being used.
define i8 @f1(i8 %r2) {
; CHECK-LABEL: f1:
; CHECK: ahi %r2, 1
; CHECK: br %r14
%y = add i8 %r2, 1
ret i8 %y
}
define i16 @f2(i8 %r2, i16 %r3) {
; CHECK-LABEL: f2:
; CHECK: {{lr|lgr}} %r2, %r3
; CHECK: br %r14
ret i16 %r3
}
define i32 @f3(i8 %r2, i16 %r3, i32 %r4) {
; CHECK-LABEL: f3:
; CHECK: {{lr|lgr}} %r2, %r4
; CHECK: br %r14
ret i32 %r4
}
define i64 @f4(i8 %r2, i16 %r3, i32 %r4, i64 %r5) {
; CHECK-LABEL: f4:
; CHECK: {{lr|lgr}} %r2, %r5
; CHECK: br %r14
ret i64 %r5
}
; Do some arithmetic so that we can see the register being used.
define float @f5(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0) {
; CHECK-LABEL: f5:
; CHECK: aebr %f0, %f0
; CHECK: br %r14
%y = fadd float %f0, %f0
ret float %y
}
define double @f6(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2) {
; CHECK-LABEL: f6:
; CHECK: ldr %f0, %f2
; CHECK: br %r14
ret double %f2
}
; fp128s are passed indirectly. Do some arithmetic so that the value
; must be interpreted as a float, rather than as a block of memory to
; be copied.
define void @f7(ptr %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
fp128 %r6) {
; CHECK-LABEL: f7:
; CHECK: ld %f0, 0(%r6)
; CHECK: ld %f2, 8(%r6)
; CHECK: axbr %f0, %f0
; CHECK: std %f0, 0(%r2)
; CHECK: std %f2, 8(%r2)
; CHECK: br %r14
%y = fadd fp128 %r6, %r6
store fp128 %y, ptr %r2
ret void
}
define i64 @f8(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
fp128 %r6, i64 %s1) {
; CHECK-LABEL: f8:
; CHECK: lg %r2, 160(%r15)
; CHECK: br %r14
ret i64 %s1
}
define float @f9(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
fp128 %r6, i64 %s1, float %f4) {
; CHECK-LABEL: f9:
; CHECK: ler %f0, %f4
; CHECK: br %r14
ret float %f4
}
define double @f10(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
fp128 %r6, i64 %s1, float %f4, double %f6) {
; CHECK-LABEL: f10:
; CHECK: ldr %f0, %f6
; CHECK: br %r14
ret double %f6
}
define i64 @f11(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
fp128 %r6, i64 %s1, float %f4, double %f6, i64 %s2) {
; CHECK-LABEL: f11:
; CHECK: lg %r2, 168(%r15)
; CHECK: br %r14
ret i64 %s2
}
; Floats are passed right-justified.
define float @f12(i8 %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
fp128 %r6, i64 %s1, float %f4, double %f6, i64 %s2,
float %s3) {
; CHECK-LABEL: f12:
; CHECK: le %f0, 180(%r15)
; CHECK: br %r14
ret float %s3
}
; Test a case where the fp128 address is passed on the stack.
define void @f13(ptr %r2, i16 %r3, i32 %r4, i64 %r5, float %f0, double %f2,
fp128 %r6, i64 %s1, float %f4, double %f6, i64 %s2,
float %s3, fp128 %s4) {
; CHECK-LABEL: f13:
; CHECK: lg [[REGISTER:%r[1-5]+]], 184(%r15)
; CHECK: ld %f0, 0([[REGISTER]])
; CHECK: ld %f2, 8([[REGISTER]])
; CHECK: axbr %f0, %f0
; CHECK: std %f0, 0(%r2)
; CHECK: std %f2, 8(%r2)
; CHECK: br %r14
%y = fadd fp128 %s4, %s4
store fp128 %y, ptr %r2
ret void
}
; Explicit fp128 return values are likewise passed indirectly.
define fp128 @f14(fp128 %r3) {
; CHECK-LABEL: f14:
; CHECK: ld %f0, 0(%r3)
; CHECK: ld %f2, 8(%r3)
; CHECK: axbr %f0, %f0
; CHECK: std %f0, 0(%r2)
; CHECK: std %f2, 8(%r2)
; CHECK: br %r14
%y = fadd fp128 %r3, %r3
ret fp128 %y
}
|
