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
| ; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=SI %s
; RUN: llc -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=VI %s
; GCN-LABEL: {{^}}br_cc_f16:
; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
; GCN: buffer_load_ushort v[[B_F16:[0-9]+]]
; SI: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
; SI: v_cvt_f32_f16_e32 v[[B_F32:[0-9]+]], v[[B_F16]]
; SI: v_cmp_nlt_f32_e32 vcc, v[[A_F32]], v[[B_F32]]
; VI: v_cmp_nlt_f16_e32 vcc, v[[A_F16]], v[[B_F16]]
; GCN: s_cbranch_vccnz
; SI: one{{$}}
; SI: v_cvt_f16_f32_e32 v[[CVT:[0-9]+]], v[[A_F32]]
; SI: two{{$}}
; SI: v_cvt_f16_f32_e32 v[[CVT]], v[[B_F32]]
; SI: one{{$}}
; SI: buffer_store_short v[[CVT]]
; SI: s_endpgm
; VI: one{{$}}
; VI: buffer_store_short v[[A_F16]]
; VI: s_endpgm
; VI: two{{$}}
; VI: buffer_store_short v[[B_F16]]
; VI: s_endpgm
define amdgpu_kernel void @br_cc_f16(
half addrspace(1)* %r,
half addrspace(1)* %a,
half addrspace(1)* %b) {
entry:
%a.val = load volatile half, half addrspace(1)* %a
%b.val = load volatile half, half addrspace(1)* %b
%fcmp = fcmp olt half %a.val, %b.val
br i1 %fcmp, label %one, label %two
one:
store half %a.val, half addrspace(1)* %r
ret void
two:
store half %b.val, half addrspace(1)* %r
ret void
}
; GCN-LABEL: {{^}}br_cc_f16_imm_a:
; GCN: buffer_load_ushort v[[B_F16:[0-9]+]]
; SI: v_cvt_f32_f16_e32 v[[B_F32:[0-9]+]], v[[B_F16]]
; SI: v_cmp_nlt_f32_e32 vcc, 0.5, v[[B_F32]]
; SI: s_cbranch_vccnz
; VI: v_cmp_nlt_f16_e32 vcc, 0.5, v[[B_F16]]
; VI: s_cbranch_vccnz
; GCN: one{{$}}
; GCN: v_mov_b32_e32 v[[A_F16:[0-9]+]], 0x380{{0|1}}{{$}}
; SI: buffer_store_short v[[A_F16]]
; SI: s_endpgm
; GCN: two{{$}}
; SI: v_cvt_f16_f32_e32 v[[B_F16:[0-9]+]], v[[B_F32]]
define amdgpu_kernel void @br_cc_f16_imm_a(
half addrspace(1)* %r,
half addrspace(1)* %b) {
entry:
%b.val = load half, half addrspace(1)* %b
%fcmp = fcmp olt half 0xH3800, %b.val
br i1 %fcmp, label %one, label %two
one:
store half 0xH3800, half addrspace(1)* %r
ret void
two:
store half %b.val, half addrspace(1)* %r
ret void
}
; GCN-LABEL: {{^}}br_cc_f16_imm_b:
; GCN: buffer_load_ushort v[[A_F16:[0-9]+]]
; SI: v_cvt_f32_f16_e32 v[[A_F32:[0-9]+]], v[[A_F16]]
; SI: v_cmp_ngt_f32_e32 vcc, 0.5, v[[A_F32]]
; VI: v_cmp_ngt_f16_e32 vcc, 0.5, v[[A_F16]]
; GCN: s_cbranch_vccnz
; GCN: one{{$}}
; SI: v_cvt_f16_f32_e32 v[[A_F16:[0-9]+]], v[[A_F32]]
; GCN: two{{$}}
; GCN: v_mov_b32_e32 v[[B_F16:[0-9]+]], 0x3800{{$}}
; GCN: buffer_store_short v[[B_F16]]
; GCN: s_endpgm
define amdgpu_kernel void @br_cc_f16_imm_b(
half addrspace(1)* %r,
half addrspace(1)* %a) {
entry:
%a.val = load half, half addrspace(1)* %a
%fcmp = fcmp olt half %a.val, 0xH3800
br i1 %fcmp, label %one, label %two
one:
store half %a.val, half addrspace(1)* %r
ret void
two:
store half 0xH3800, half addrspace(1)* %r
ret void
}
|