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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O3 -verify-machineinstrs -mtriple=powerpc64le-unknown-unknown \
# RUN: -mcpu=pwr9 -simplify-mir -run-pass=machine-cp %s -o - | FileCheck %s
# Normal case
---
name: test0
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
; CHECK-LABEL: name: test0
; CHECK: renamable $x4 = LI8 1024
; CHECK: $x3 = COPY killed renamable $x4
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x4 = LI8 1024
$x3 = COPY renamable killed $x4
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
# Not in terminal BBs
---
name: test1
alignment: 4
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: test1
; CHECK: bb.0.entry:
; CHECK: renamable $x5 = LI8 42
; CHECK: renamable $x4 = COPY killed renamable $x5
; CHECK: B %bb.1
; CHECK: bb.1:
; CHECK: liveins: $x4
; CHECK: $x3 = COPY killed renamable $x4
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
bb.0.entry:
successors: %bb.1
renamable $x5 = LI8 42
renamable $x4 = COPY renamable killed $x5
B %bb.1
bb.1:
liveins: $x4
$x3 = COPY renamable killed $x4
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
# Use reserved register
---
name: test2
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
; CHECK-LABEL: name: test2
; CHECK: renamable $x4 = LI8 1024
; CHECK: $x13 = COPY killed renamable $x4
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit undef $x3
renamable $x4 = LI8 1024
$x13 = COPY renamable killed $x4
BLR8 implicit $lr8, implicit undef $rm, implicit undef $x3
...
# Intermediate read of copy's src
---
name: test3
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
; CHECK-LABEL: name: test3
; CHECK: renamable $x4 = LI8 0
; CHECK: renamable $x5 = ADDI8 $x4, 1
; CHECK: $x3 = COPY killed renamable $x4
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x4 = LI8 0
renamable $x5 = ADDI8 $x4, 1
$x3 = COPY renamable killed $x4
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
# Intermediate read of copy's def
---
name: test4
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x3
; CHECK-LABEL: name: test4
; CHECK: liveins: $x3
; CHECK: renamable $x4 = LI8 0
; CHECK: renamable $x5 = ADDI8 $x3, 1
; CHECK: $x3 = COPY killed renamable $x4
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x4 = LI8 0
renamable $x5 = ADDI8 $x3, 1
$x3 = COPY renamable killed $x4
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
# Intermiediate clobber of copy's def
---
name: test5
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x3, $x5
; CHECK-LABEL: name: test5
; CHECK: liveins: $x3, $x5
; CHECK: renamable $x4 = LI8 0
; CHECK: renamable $x3 = ADDI8 $x5, 1
; CHECK: $x3 = COPY killed renamable $x4
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x4 = LI8 0
renamable $x3 = ADDI8 $x5, 1
$x3 = COPY renamable killed $x4
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
---
name: iterative_deletion
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x5
; CHECK-LABEL: name: iterative_deletion
; CHECK: liveins: $x5
; CHECK: renamable $x6 = ADDI8 killed renamable $x5, 1
; CHECK: $x3 = COPY $x6
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x6 = ADDI8 renamable killed $x5, 1
renamable $x4 = COPY renamable killed $x6
renamable $x7 = COPY renamable killed $x4
$x3 = COPY renamable killed $x7
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
---
name: Enter
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x4, $x7
; CHECK-LABEL: name: Enter
; CHECK: liveins: $x4, $x7
; CHECK: renamable $x5 = COPY killed renamable $x7
; CHECK: renamable $x6 = ADDI8 killed renamable $x4, 1
; CHECK: $x3 = ADD8 killed renamable $x5, $x6
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x5 = COPY killed renamable $x7
renamable $x6 = ADDI8 killed renamable $x4, 1
renamable $x7 = COPY killed renamable $x6
$x3 = ADD8 renamable killed $x5, renamable killed $x7
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
---
name: foo
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x4, $x7
; CHECK-LABEL: name: foo
; CHECK: liveins: $x4, $x7
; CHECK: renamable $x5 = COPY killed renamable $x7
; CHECK: renamable $x6 = ADDI8 renamable $x4, 1
; CHECK: renamable $x7 = COPY killed renamable $x6
; CHECK: renamable $x8 = ADDI8 killed $x4, 2
; CHECK: $x3 = ADD8 killed renamable $x5, $x8
; CHECK: $x3 = ADD8 $x3, killed renamable $x7
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x5 = COPY killed renamable $x7
renamable $x6 = ADDI8 renamable $x4, 1
renamable $x7 = COPY killed renamable $x6
renamable $x8 = ADDI8 killed $x4, 2
renamable $x6 = COPY killed renamable $x8
$x3 = ADD8 renamable killed $x5, renamable killed $x6
$x3 = ADD8 $x3, renamable killed $x7
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
---
name: bar
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x4, $x7
; CHECK-LABEL: name: bar
; CHECK: liveins: $x4, $x7
; CHECK: renamable $x5 = COPY killed renamable $x7
; CHECK: renamable $x6 = ADDI8 renamable $x4, 1
; CHECK: renamable $x8 = COPY $x6
; CHECK: renamable $x6 = ADDI8 renamable $x5, 2
; CHECK: $x3 = ADD8 killed renamable $x5, $x6
; CHECK: $x3 = ADD8 $x3, killed renamable $x8
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x5 = COPY killed renamable $x7
renamable $x6 = ADDI8 renamable $x4, 1
renamable $x7 = COPY killed renamable $x6
renamable $x8 = COPY killed renamable $x7
renamable $x6 = ADDI8 renamable $x5, 2
renamable $x7 = COPY killed renamable $x6
$x3 = ADD8 renamable killed $x5, renamable killed $x7
$x3 = ADD8 $x3, renamable killed $x8
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
---
name: bogus
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x7
; CHECK-LABEL: name: bogus
; CHECK: liveins: $x7
; CHECK: renamable $x5 = COPY renamable $x7
; CHECK: renamable $x6 = ADDI8 $x7, 1
; CHECK: renamable $x7 = COPY $x6
; CHECK: renamable $x6 = ADDI8 renamable $x5, 2
; CHECK: $x3 = ADD8 $x7, killed renamable $x5
; CHECK: $x3 = ADD8 $x3, killed renamable $x6
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x5 = COPY killed renamable $x7
renamable $x6 = ADDI8 renamable $x5, 1
renamable $x4 = COPY killed renamable $x6
renamable $x7 = COPY killed renamable $x4
renamable $x6 = ADDI8 renamable $x5, 2
renamable $x4 = COPY killed renamable $x7
$x3 = ADD8 renamable killed $x4, renamable killed $x5
$x3 = ADD8 $x3, renamable killed $x6
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
---
name: foobar
alignment: 4
tracksRegLiveness: true
body: |
bb.0.entry:
liveins: $x7
; CHECK-LABEL: name: foobar
; CHECK: liveins: $x7
; CHECK: renamable $x6 = ADDI8 $x7, 1
; CHECK: renamable $x8 = COPY $x6
; CHECK: renamable $x6 = ADDI8 $x7, 2
; CHECK: $x3 = ADD8 $x6, $x7
; CHECK: $x3 = ADD8 $x3, killed renamable $x8
; CHECK: BLR8 implicit $lr8, implicit undef $rm, implicit $x3
renamable $x5 = COPY killed renamable $x7
renamable $x6 = ADDI8 renamable $x5, 1
renamable $x4 = COPY killed renamable $x6
renamable $x8 = COPY killed renamable $x4
renamable $x6 = ADDI8 renamable $x5, 2
renamable $x4 = COPY killed renamable $x6
$x3 = ADD8 renamable killed $x4, renamable killed $x5
$x3 = ADD8 $x3, renamable killed $x8
BLR8 implicit $lr8, implicit undef $rm, implicit $x3
...
|