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
|
#!/usr/bin/env python3
"""A test case update script.
This script is a utility to update LLVM 'llc' based test cases with new
FileCheck patterns. It can either update all of the tests in the file or
a single test function.
"""
from __future__ import print_function
import argparse
import os # Used to advertise this file's name ("autogenerated_note").
from UpdateTestChecks import asm, common
# llc is the only llc-like in the LLVM tree but downstream forks can add
# additional ones here if they have them.
LLC_LIKE_TOOLS = ('llc',)
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('--llc-binary', default=None,
help='The "llc" binary to use to generate the test case')
parser.add_argument(
'--function', help='The function in the test file to update')
parser.add_argument(
'--extra_scrub', action='store_true',
help='Always use additional regex to further reduce diffs between various subtargets')
parser.add_argument(
'--x86_scrub_rip', action='store_true', default=True,
help='Use more regex for x86 matching to reduce diffs between various subtargets')
parser.add_argument(
'--no_x86_scrub_rip', action='store_false', dest='x86_scrub_rip')
parser.add_argument(
'--no_x86_scrub_mem_shuffle', action='store_true', default=False,
help='Reduce scrubbing shuffles with memory operands')
parser.add_argument('tests', nargs='+')
initial_args = common.parse_commandline_args(parser)
script_name = os.path.basename(__file__)
for ti in common.itertests(initial_args.tests, parser,
script_name='utils/' + script_name):
triple_in_ir = None
for l in ti.input_lines:
m = common.TRIPLE_IR_RE.match(l)
if m:
triple_in_ir = m.groups()[0]
break
run_list = []
for l in ti.run_lines:
if '|' not in l:
common.warn('Skipping unparseable RUN line: ' + l)
continue
commands = [cmd.strip() for cmd in l.split('|', 1)]
llc_cmd = commands[0]
llc_tool = llc_cmd.split(' ')[0]
triple_in_cmd = None
m = common.TRIPLE_ARG_RE.search(llc_cmd)
if m:
triple_in_cmd = m.groups()[0]
march_in_cmd = None
m = common.MARCH_ARG_RE.search(llc_cmd)
if m:
march_in_cmd = m.groups()[0]
filecheck_cmd = ''
if len(commands) > 1:
filecheck_cmd = commands[1]
common.verify_filecheck_prefixes(filecheck_cmd)
if llc_tool not in LLC_LIKE_TOOLS:
common.warn('Skipping non-llc RUN line: ' + l)
continue
if not filecheck_cmd.startswith('FileCheck '):
common.warn('Skipping non-FileChecked RUN line: ' + l)
continue
llc_cmd_args = llc_cmd[len(llc_tool):].strip()
llc_cmd_args = llc_cmd_args.replace('< %s', '').replace('%s', '').strip()
if ti.path.endswith('.mir'):
llc_cmd_args += ' -x mir'
check_prefixes = [item for m in common.CHECK_PREFIX_RE.finditer(filecheck_cmd)
for item in m.group(1).split(',')]
if not check_prefixes:
check_prefixes = ['CHECK']
# FIXME: We should use multiple check prefixes to common check lines. For
# now, we just ignore all but the last.
run_list.append((check_prefixes, llc_cmd_args, triple_in_cmd, march_in_cmd))
if ti.path.endswith('.mir'):
check_indent = ' '
else:
check_indent = ''
func_dict = {}
for p in run_list:
prefixes = p[0]
for prefix in prefixes:
func_dict.update({prefix: dict()})
for prefixes, llc_args, triple_in_cmd, march_in_cmd in run_list:
common.debug('Extracted LLC cmd:', llc_tool, llc_args)
common.debug('Extracted FileCheck prefixes:', str(prefixes))
raw_tool_output = common.invoke_tool(ti.args.llc_binary or llc_tool, llc_args, ti.path)
triple = triple_in_cmd or triple_in_ir
if not triple:
triple = asm.get_triple_from_march(march_in_cmd)
asm.build_function_body_dictionary_for_triple(ti.args, raw_tool_output,
triple, prefixes, func_dict)
is_in_function = False
is_in_function_start = False
func_name = None
prefix_set = set([prefix for p in run_list for prefix in p[0]])
common.debug('Rewriting FileCheck prefixes:', str(prefix_set))
output_lines = []
for input_info in ti.iterlines(output_lines):
input_line = input_info.line
args = input_info.args
if is_in_function_start:
if input_line == '':
continue
if input_line.lstrip().startswith(';'):
m = common.CHECK_RE.match(input_line)
if not m or m.group(1) not in prefix_set:
output_lines.append(input_line)
continue
# Print out the various check lines here.
asm.add_asm_checks(output_lines, check_indent + ';', run_list, func_dict, func_name)
is_in_function_start = False
if is_in_function:
if common.should_add_line_to_output(input_line, prefix_set):
# This input line of the function body will go as-is into the output.
output_lines.append(input_line)
else:
continue
if input_line.strip() == '}':
is_in_function = False
continue
# If it's outside a function, it just gets copied to the output.
output_lines.append(input_line)
m = common.IR_FUNCTION_RE.match(input_line)
if not m:
continue
func_name = m.group(1)
if args.function is not None and func_name != args.function:
# When filtering on a specific function, skip all others.
continue
is_in_function = is_in_function_start = True
common.debug('Writing %d lines to %s...' % (len(output_lines), ti.path))
with open(ti.path, 'wb') as f:
f.writelines(['{}\n'.format(l).encode('utf-8') for l in output_lines])
if __name__ == '__main__':
main()
|
