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
|
; RUN: llc -mtriple=arm64-eabi < %s | FileCheck %s
define float @fma32(float %a, float %b, float %c) nounwind readnone ssp {
entry:
; CHECK-LABEL: fma32:
; CHECK: fmadd s0, s0, s1, s2
%0 = tail call float @llvm.fma.f32(float %a, float %b, float %c)
ret float %0
}
define float @fnma32(float %a, float %b, float %c) nounwind readnone ssp {
entry:
; CHECK-LABEL: fnma32:
; CHECK: fnmadd s0, s0, s1, s2
%0 = tail call float @llvm.fma.f32(float %a, float %b, float %c)
%mul = fmul float %0, -1.000000e+00
ret float %mul
}
define float @fms32(float %a, float %b, float %c) nounwind readnone ssp {
entry:
; CHECK-LABEL: fms32:
; CHECK: fmsub s0, s0, s1, s2
%mul = fmul float %b, -1.000000e+00
%0 = tail call float @llvm.fma.f32(float %a, float %mul, float %c)
ret float %0
}
define float @fms32_com(float %a, float %b, float %c) nounwind readnone ssp {
entry:
; CHECK-LABEL: fms32_com:
; CHECK: fmsub s0, s1, s0, s2
%mul = fmul float %b, -1.000000e+00
%0 = tail call float @llvm.fma.f32(float %mul, float %a, float %c)
ret float %0
}
define float @fnms32(float %a, float %b, float %c) nounwind readnone ssp {
entry:
; CHECK-LABEL: fnms32:
; CHECK: fnmsub s0, s0, s1, s2
%mul = fmul float %c, -1.000000e+00
%0 = tail call float @llvm.fma.f32(float %a, float %b, float %mul)
ret float %0
}
define double @fma64(double %a, double %b, double %c) nounwind readnone ssp {
; CHECK-LABEL: fma64:
; CHECK: fmadd d0, d0, d1, d2
entry:
%0 = tail call double @llvm.fma.f64(double %a, double %b, double %c)
ret double %0
}
define double @fnma64(double %a, double %b, double %c) nounwind readnone ssp {
; CHECK-LABEL: fnma64:
; CHECK: fnmadd d0, d0, d1, d2
entry:
%0 = tail call double @llvm.fma.f64(double %a, double %b, double %c)
%mul = fmul double %0, -1.000000e+00
ret double %mul
}
define double @fms64(double %a, double %b, double %c) nounwind readnone ssp {
; CHECK-LABEL: fms64:
; CHECK: fmsub d0, d0, d1, d2
entry:
%mul = fmul double %b, -1.000000e+00
%0 = tail call double @llvm.fma.f64(double %a, double %mul, double %c)
ret double %0
}
define double @fms64_com(double %a, double %b, double %c) nounwind readnone ssp {
; CHECK-LABEL: fms64_com:
; CHECK: fmsub d0, d1, d0, d2
entry:
%mul = fmul double %b, -1.000000e+00
%0 = tail call double @llvm.fma.f64(double %mul, double %a, double %c)
ret double %0
}
define double @fnms64(double %a, double %b, double %c) nounwind readnone ssp {
; CHECK-LABEL: fnms64:
; CHECK: fnmsub d0, d0, d1, d2
entry:
%mul = fmul double %c, -1.000000e+00
%0 = tail call double @llvm.fma.f64(double %a, double %b, double %mul)
ret double %0
}
; This would crash while trying getNegatedExpression().
define float @negated_constant(float %x) {
; CHECK-LABEL: negated_constant:
; CHECK: // %bb.0:
; CHECK-NEXT: mov w8, #-1037565952
; CHECK-NEXT: mov w9, #1109917696
; CHECK-NEXT: fmov s1, w8
; CHECK-NEXT: fmul s1, s0, s1
; CHECK-NEXT: fmov s2, w9
; CHECK-NEXT: fmadd s0, s0, s2, s1
; CHECK-NEXT: ret
%m = fmul float %x, 42.0
%fma = call nsz float @llvm.fma.f32(float %x, float -42.0, float %m)
%nfma = fneg float %fma
ret float %nfma
}
declare float @llvm.fma.f32(float, float, float) nounwind readnone
declare double @llvm.fma.f64(double, double, double) nounwind readnone
|
GitWeb