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
|
; RUN: llc < %s -mtriple=aarch64 -mattr=neon -recip=!div,!vec-div | FileCheck %s --check-prefix=FAULT
; RUN: llc < %s -mtriple=aarch64 -mattr=neon -recip=div,vec-div | FileCheck %s
define float @frecp(float %x) #0 {
%div = fdiv fast float 1.0, %x
ret float %div
; FAULT-LABEL: frecp:
; FAULT-NEXT: BB#0
; FAULT-NEXT: fmov
; FAULT-NEXT: fdiv
; CHECK-LABEL: frecp:
; CHECK-NEXT: BB#0
; CHECK-NEXT: frecpe
; CHECK-NEXT: fmov
}
define <2 x float> @f2recp(<2 x float> %x) #0 {
%div = fdiv fast <2 x float> <float 1.0, float 1.0>, %x
ret <2 x float> %div
; FAULT-LABEL: f2recp:
; FAULT-NEXT: BB#0
; FAULT-NEXT: fmov
; FAULT-NEXT: fdiv
; CHECK-LABEL: f2recp:
; CHECK-NEXT: BB#0
; CHECK-NEXT: fmov
; CHECK-NEXT: frecpe
}
define <4 x float> @f4recp(<4 x float> %x) #0 {
%div = fdiv fast <4 x float> <float 1.0, float 1.0, float 1.0, float 1.0>, %x
ret <4 x float> %div
; FAULT-LABEL: f4recp:
; FAULT-NEXT: BB#0
; FAULT-NEXT: fmov
; FAULT-NEXT: fdiv
; CHECK-LABEL: f4recp:
; CHECK-NEXT: BB#0
; CHECK-NEXT: fmov
; CHECK-NEXT: frecpe
}
define <8 x float> @f8recp(<8 x float> %x) #0 {
%div = fdiv fast <8 x float> <float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0>, %x
ret <8 x float> %div
; FAULT-LABEL: f8recp:
; FAULT-NEXT: BB#0
; FAULT-NEXT: fmov
; FAULT-NEXT: fdiv
; FAULT-NEXT: fdiv
; CHECK-LABEL: f8recp:
; CHECK-NEXT: BB#0
; CHECK-NEXT: fmov
; CHECK-NEXT: frecpe
; CHECK: frecpe
}
define double @drecp(double %x) #0 {
%div = fdiv fast double 1.0, %x
ret double %div
; FAULT-LABEL: drecp:
; FAULT-NEXT: BB#0
; FAULT-NEXT: fmov
; FAULT-NEXT: fdiv
; CHECK-LABEL: drecp:
; CHECK-NEXT: BB#0
; CHECK-NEXT: frecpe
; CHECK-NEXT: fmov
}
define <2 x double> @d2recp(<2 x double> %x) #0 {
%div = fdiv fast <2 x double> <double 1.0, double 1.0>, %x
ret <2 x double> %div
; FAULT-LABEL: d2recp:
; FAULT-NEXT: BB#0
; FAULT-NEXT: fmov
; FAULT-NEXT: fdiv
; CHECK-LABEL: d2recp:
; CHECK-NEXT: BB#0
; CHECK-NEXT: fmov
; CHECK-NEXT: frecpe
}
define <4 x double> @d4recp(<4 x double> %x) #0 {
%div = fdiv fast <4 x double> <double 1.0, double 1.0, double 1.0, double 1.0>, %x
ret <4 x double> %div
; FAULT-LABEL: d4recp:
; FAULT-NEXT: BB#0
; FAULT-NEXT: fmov
; FAULT-NEXT: fdiv
; FAULT-NEXT: fdiv
; CHECK-LABEL: d4recp:
; CHECK-NEXT: BB#0
; CHECK-NEXT: fmov
; CHECK-NEXT: frecpe
; CHECK: frecpe
}
attributes #0 = { nounwind "unsafe-fp-math"="true" }
|
