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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
# RUN: llc -mtriple=amdgcn -mcpu=gfx1200 -verify-machineinstrs -run-pass post-RA-hazard-rec -o - %s | FileCheck -check-prefix=GCN %s
# GCN-LABEL: name: hazard_vcmpx_permlane16var
# GCN: V_CMPX_LE_F32_nosdst_e32
# GCN: S_ADD_U32
# GCN-NEXT: $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_VAR_B32_e64
---
name: hazard_vcmpx_permlane16var
body: |
bb.0:
successors: %bb.1
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
V_CMPX_LE_F32_nosdst_e32 0, $vgpr0, implicit-def $exec, implicit $mode, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = IMPLICIT_DEF
$vgpr2 = IMPLICIT_DEF
$sgpr0 = IMPLICIT_DEF
$sgpr1 = S_ADD_U32 $sgpr0, 0, implicit-def $scc
$vgpr1 = V_PERMLANE16_VAR_B32_e64 0, killed $vgpr1, 0, killed $vgpr2, $vgpr1, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_vcmpx_permlanex16var
# GCN: V_CMPX_LE_F32_nosdst_e32
# GCN: $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANEX16_VAR_B32_e64
---
name: hazard_vcmpx_permlanex16var
body: |
bb.0:
successors: %bb.1
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
V_CMPX_LE_F32_nosdst_e32 0, $vgpr0, implicit-def $exec, implicit $mode, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = IMPLICIT_DEF
$vgpr2 = IMPLICIT_DEF
$sgpr0 = IMPLICIT_DEF
$sgpr1 = IMPLICIT_DEF
$vgpr1 = V_PERMLANEX16_VAR_B32_e64 0, killed $vgpr1, 0, killed $vgpr2, $vgpr1, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_vcmpx_permlane16var_v_nop
# GCN: V_CMPX_LE_F32_nosdst_e32
# GCN: V_NOP
# GCN-NEXT: $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_VAR_B32_e64
---
name: hazard_vcmpx_permlane16var_v_nop
body: |
bb.0:
successors: %bb.1
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
V_CMPX_LE_F32_nosdst_e32 0, $vgpr0, implicit-def $exec, implicit $mode, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = IMPLICIT_DEF
$vgpr2 = IMPLICIT_DEF
$sgpr0 = IMPLICIT_DEF
$sgpr1 = IMPLICIT_DEF
V_NOP_e32 implicit $exec
$vgpr1 = V_PERMLANE16_VAR_B32_e64 0, killed $vgpr1, 0, killed $vgpr2, $vgpr1, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_vcmpx_permlane16var_far
# GCN: V_CMPX_LE_F32_nosdst_e32
# GCN: $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_VAR_B32_e64
---
name: hazard_vcmpx_permlane16var_far
body: |
bb.0:
successors: %bb.1
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
V_CMPX_LE_F32_nosdst_e32 0, $vgpr0, implicit-def $exec, implicit $mode, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = IMPLICIT_DEF
$vgpr2 = IMPLICIT_DEF
$sgpr0 = IMPLICIT_DEF
$sgpr1 = IMPLICIT_DEF
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
V_NOP_e32 implicit $exec
$vgpr1 = V_PERMLANE16_VAR_B32_e64 0, killed $vgpr1, 0, killed $vgpr1, $vgpr1, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_vcmpx_permlane16var_no_hazard
# GCN: V_CMPX_LE_F32_nosdst_e32
# GCN: V_ADD_F32
# GCN-NEXT: V_PERMLANE16_VAR_B32_e64
---
name: hazard_vcmpx_permlane16var_no_hazard
body: |
bb.0:
successors: %bb.1
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
V_CMPX_LE_F32_nosdst_e32 0, $vgpr0, implicit-def $exec, implicit $mode, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = IMPLICIT_DEF
$sgpr0 = IMPLICIT_DEF
$sgpr1 = IMPLICIT_DEF
$vgpr2 = V_ADD_F32_e32 $vgpr1, $vgpr1, implicit $mode, implicit $exec
$vgpr1 = V_PERMLANE16_VAR_B32_e64 0, killed $vgpr1, 0, killed $vgpr2, $vgpr1, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_vcmpx_permlane16var_undef_src
# GCN: V_CMPX_LE_F32_nosdst_e32
# GCN: S_ADD_U32
# GCN-NEXT: dead $vgpr1 = V_MOV_B32_e32 undef $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_VAR_B32_e64
---
name: hazard_vcmpx_permlane16var_undef_src
body: |
bb.0:
successors: %bb.1
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
V_CMPX_LE_F32_nosdst_e32 0, $vgpr0, implicit-def $exec, implicit $mode, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr2 = IMPLICIT_DEF
$sgpr0 = IMPLICIT_DEF
$sgpr1 = S_ADD_U32 $sgpr0, 0, implicit-def $scc
$vgpr1 = V_PERMLANE16_VAR_B32_e64 0, undef $vgpr1, 0, killed $vgpr2, undef $vgpr1, 0, implicit $exec
S_ENDPGM 0
...
# GCN-LABEL: name: hazard_vcmpx_e64_permlane16var
# GCN: V_CMPX_LE_F32_nosdst_e64
# GCN: S_ADD_U32
# GCN-NEXT: $vgpr1 = V_MOV_B32_e32 killed $vgpr1, implicit $exec
# GCN-NEXT: V_PERMLANE16_VAR_B32_e64
---
name: hazard_vcmpx_e64_permlane16var
body: |
bb.0:
successors: %bb.1
$vgpr0 = V_MOV_B32_e32 0, implicit $exec
V_CMPX_LE_F32_nosdst_e64 0, 0, 0, $vgpr0, 0, implicit-def $exec, implicit $mode, implicit $exec
S_BRANCH %bb.1
bb.1:
$vgpr1 = IMPLICIT_DEF
$vgpr2 = IMPLICIT_DEF
$sgpr0 = IMPLICIT_DEF
$sgpr1 = S_ADD_U32 $sgpr0, 0, implicit-def $scc
$vgpr1 = V_PERMLANE16_VAR_B32_e64 0, killed $vgpr1, 0, killed $vgpr2, $vgpr1, 0, implicit $exec
S_ENDPGM 0
...
|
