forked from OSchip/llvm-project
171 lines
5.8 KiB
Python
Executable File
171 lines
5.8 KiB
Python
Executable File
#!/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()
|