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
|
; RUN: llc < %s -mtriple=arm64-apple-ios7.0 | FileCheck %s
define void @test_load_store(half* %in, half* %out) {
; CHECK-LABEL: test_load_store:
; CHECK: ldr [[TMP:h[0-9]+]], [x0]
; CHECK: str [[TMP]], [x1]
%val = load half* %in
store half %val, half* %out
ret void
}
define i16 @test_bitcast_from_half(half* %addr) {
; CHECK-LABEL: test_bitcast_from_half:
; CHECK: ldrh w0, [x0]
%val = load half* %addr
%val_int = bitcast half %val to i16
ret i16 %val_int
}
define i16 @test_reg_bitcast_from_half(half %in) {
; CHECK-LABEL: test_reg_bitcast_from_half:
; CHECK-NOT: str
; CHECK-NOT: ldr
; CHECK-DAG: fmov w0, s0
; CHECK: ret
%val = bitcast half %in to i16
ret i16 %val
}
define void @test_bitcast_to_half(half* %addr, i16 %in) {
; CHECK-LABEL: test_bitcast_to_half:
; CHECK: strh w1, [x0]
%val_fp = bitcast i16 %in to half
store half %val_fp, half* %addr
ret void
}
define half @test_reg_bitcast_to_half(i16 %in) {
; CHECK-LABEL: test_reg_bitcast_to_half:
; CHECK-NOT: str
; CHECK-NOT: ldr
; CHECK-DAG: fmov s0, w0
; CHECK: ret
%val = bitcast i16 %in to half
ret half %val
}
define float @test_extend32(half* %addr) {
; CHECK-LABEL: test_extend32:
; CHECK: fcvt {{s[0-9]+}}, {{h[0-9]+}}
%val16 = load half* %addr
%val32 = fpext half %val16 to float
ret float %val32
}
define double @test_extend64(half* %addr) {
; CHECK-LABEL: test_extend64:
; CHECK: fcvt {{d[0-9]+}}, {{h[0-9]+}}
%val16 = load half* %addr
%val32 = fpext half %val16 to double
ret double %val32
}
define void @test_trunc32(float %in, half* %addr) {
; CHECK-LABEL: test_trunc32:
; CHECK: fcvt {{h[0-9]+}}, {{s[0-9]+}}
%val16 = fptrunc float %in to half
store half %val16, half* %addr
ret void
}
define void @test_trunc64(double %in, half* %addr) {
; CHECK-LABEL: test_trunc64:
; CHECK: fcvt {{h[0-9]+}}, {{d[0-9]+}}
%val16 = fptrunc double %in to half
store half %val16, half* %addr
ret void
}
|
