regbankselect-brcond.mir
4.65 KB
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
169
170
171
172
173
174
175
176
177
178
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect %s -verify-machineinstrs -o - -regbankselect-fast | FileCheck %s
# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=regbankselect %s -verify-machineinstrs -o - -regbankselect-greedy | FileCheck %s
---
name: brcond_vcc_cond
legalized: true
body: |
; CHECK-LABEL: name: brcond_vcc_cond
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
; CHECK: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
; CHECK: [[ICMP:%[0-9]+]]:vcc(s1) = G_ICMP intpred(ne), [[COPY]](s32), [[COPY1]]
; CHECK: G_BRCOND [[ICMP]](s1), %bb.1
; CHECK: bb.1:
bb.0.entry:
successors: %bb.1
liveins: $vgpr0, $vgpr1
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s1) = G_ICMP intpred(ne), %0, %1
G_BRCOND %2, %bb.1
bb.1:
...
---
name: brcond_scc_cond
legalized: true
body: |
; CHECK-LABEL: name: brcond_scc_cond
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
; CHECK: [[COPY1:%[0-9]+]]:sgpr(s32) = COPY $sgpr1
; CHECK: [[ICMP:%[0-9]+]]:sgpr(s32) = G_ICMP intpred(ne), [[COPY]](s32), [[COPY1]]
; CHECK: [[TRUNC:%[0-9]+]]:sgpr(s1) = G_TRUNC [[ICMP]](s32)
; CHECK: [[ZEXT:%[0-9]+]]:sgpr(s32) = G_ZEXT [[TRUNC]](s1)
; CHECK: G_BRCOND [[ZEXT]](s32), %bb.1
; CHECK: bb.1:
bb.0.entry:
successors: %bb.1
liveins: $sgpr0, $sgpr1
%0:_(s32) = COPY $sgpr0
%1:_(s32) = COPY $sgpr1
%2:_(s1) = G_ICMP intpred(ne), %0, %1
G_BRCOND %2, %bb.1
bb.1:
...
---
name: brcond_sgpr_cond
legalized: true
body: |
; CHECK-LABEL: name: brcond_sgpr_cond
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: [[COPY:%[0-9]+]]:sgpr(s32) = COPY $sgpr0
; CHECK: [[TRUNC:%[0-9]+]]:sgpr(s1) = G_TRUNC [[COPY]](s32)
; CHECK: [[ZEXT:%[0-9]+]]:sgpr(s32) = G_ZEXT [[TRUNC]](s1)
; CHECK: G_BRCOND [[ZEXT]](s32), %bb.1
; CHECK: bb.1:
bb.0.entry:
successors: %bb.1
liveins: $sgpr0
%0:_(s32) = COPY $sgpr0
%1:_(s1) = G_TRUNC %0
G_BRCOND %1, %bb.1
bb.1:
...
---
name: brcond_vgpr_cond
legalized: true
body: |
; CHECK-LABEL: name: brcond_vgpr_cond
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
; CHECK: [[TRUNC:%[0-9]+]]:vcc(s1) = G_TRUNC [[COPY]](s32)
; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1
; CHECK: bb.1:
bb.0.entry:
successors: %bb.1
liveins: $vgpr0
%0:_(s32) = COPY $vgpr0
%1:_(s1) = G_TRUNC %0
G_BRCOND %1, %bb.1
bb.1:
...
# The terminator that needs handling is the only instruction in the
# block.
---
name: empty_block_vgpr_brcond
legalized: true
body: |
; CHECK-LABEL: name: empty_block_vgpr_brcond
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
; CHECK: [[TRUNC:%[0-9]+]]:vcc(s1) = G_TRUNC [[COPY]](s32)
; CHECK: bb.1:
; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1
; CHECK: bb.2:
bb.0.entry:
successors: %bb.1
liveins: $vgpr0
%0:_(s32) = COPY $vgpr0
%1:_(s1) = G_TRUNC %0
bb.1:
G_BRCOND %1, %bb.1
bb.2:
...
# Make sure the first instruction in the block isn't skipped.
---
name: copy_first_inst_brcond
legalized: true
body: |
; CHECK-LABEL: name: copy_first_inst_brcond
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
; CHECK: bb.1:
; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; CHECK: [[TRUNC:%[0-9]+]]:vcc(s1) = G_TRUNC [[COPY]](s32)
; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1
; CHECK: bb.2:
bb.0.entry:
successors: %bb.1
liveins: $vgpr0
%0:_(s32) = COPY $vgpr0
bb.1:
%1:_(s1) = G_TRUNC %0
G_BRCOND %1, %bb.1
bb.2:
...
# Extra instruction separates brcond from the condition def
---
name: copy_middle_inst_brcond
legalized: true
body: |
; CHECK-LABEL: name: copy_middle_inst_brcond
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
; CHECK: bb.1:
; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; CHECK: [[TRUNC:%[0-9]+]]:vcc(s1) = G_TRUNC [[COPY]](s32)
; CHECK: S_NOP 0
; CHECK: G_BRCOND [[TRUNC]](s1), %bb.1
; CHECK: bb.2:
bb.0.entry:
successors: %bb.1
liveins: $vgpr0
%0:_(s32) = COPY $vgpr0
bb.1:
%1:_(s1) = G_TRUNC %0
S_NOP 0
G_BRCOND %1, %bb.1
bb.2:
...