mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-14 15:19:33 +00:00
438 lines
15 KiB
Python
Executable File
438 lines
15 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
"""Updates FileCheck checks in MIR tests.
|
|
|
|
This script is a utility to update MIR based tests with new FileCheck
|
|
patterns.
|
|
|
|
The checks added by this script will cover the entire body of each
|
|
function it handles. Virtual registers used are given names via
|
|
FileCheck patterns, so if you do want to check a subset of the body it
|
|
should be straightforward to trim out the irrelevant parts. None of
|
|
the YAML metadata will be checked, other than function names.
|
|
|
|
If there are multiple llc commands in a test, the full set of checks
|
|
will be repeated for each different check pattern. Checks for patterns
|
|
that are common between different commands will be left as-is by
|
|
default, or removed if the --remove-common-prefixes flag is provided.
|
|
"""
|
|
|
|
from __future__ import print_function
|
|
|
|
import argparse
|
|
import collections
|
|
import os
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
|
|
from UpdateTestChecks import common
|
|
|
|
MIR_FUNC_NAME_RE = re.compile(r' *name: *(?P<func>[A-Za-z0-9_.-]+)')
|
|
MIR_BODY_BEGIN_RE = re.compile(r' *body: *\|')
|
|
MIR_BASIC_BLOCK_RE = re.compile(r' *bb\.[0-9]+.*:$')
|
|
VREG_RE = re.compile(r'(%[0-9]+)(?::[a-z0-9_]+)?(?:\([<>a-z0-9 ]+\))?')
|
|
VREG_DEF_RE = re.compile(
|
|
r'^ *(?P<vregs>{0}(?:, {0})*) '
|
|
r'= (?P<opcode>[A-Zt][A-Za-z0-9_]+)'.format(VREG_RE.pattern))
|
|
MIR_PREFIX_DATA_RE = re.compile(r'^ *(;|bb.[0-9].*: *$|[a-z]+:( |$)|$)')
|
|
|
|
IR_FUNC_NAME_RE = re.compile(
|
|
r'^\s*define\s+(?:internal\s+)?[^@]*@(?P<func>[A-Za-z0-9_.]+)\s*\(')
|
|
IR_PREFIX_DATA_RE = re.compile(r'^ *(;|$)')
|
|
|
|
MIR_FUNC_RE = re.compile(
|
|
r'^---$'
|
|
r'\n'
|
|
r'^ *name: *(?P<func>[A-Za-z0-9_.-]+)$'
|
|
r'.*?'
|
|
r'^ *body: *\|\n'
|
|
r'(?P<body>.*?)\n'
|
|
r'^\.\.\.$',
|
|
flags=(re.M | re.S))
|
|
|
|
|
|
class LLC:
|
|
def __init__(self, bin):
|
|
self.bin = bin
|
|
|
|
def __call__(self, args, ir):
|
|
if ir.endswith('.mir'):
|
|
args = '{} -x mir'.format(args)
|
|
with open(ir) as ir_file:
|
|
stdout = subprocess.check_output('{} {}'.format(self.bin, args),
|
|
shell=True, stdin=ir_file)
|
|
# Fix line endings to unix CR style.
|
|
stdout = stdout.replace('\r\n', '\n')
|
|
return stdout
|
|
|
|
|
|
class Run:
|
|
def __init__(self, prefixes, cmd_args, triple):
|
|
self.prefixes = prefixes
|
|
self.cmd_args = cmd_args
|
|
self.triple = triple
|
|
|
|
def __getitem__(self, index):
|
|
return [self.prefixes, self.cmd_args, self.triple][index]
|
|
|
|
|
|
def log(msg, verbose=True):
|
|
if verbose:
|
|
print(msg, file=sys.stderr)
|
|
|
|
|
|
def warn(msg, test_file=None):
|
|
if test_file:
|
|
msg = '{}: {}'.format(test_file, msg)
|
|
print('WARNING: {}'.format(msg), file=sys.stderr)
|
|
|
|
|
|
def find_triple_in_ir(lines, verbose=False):
|
|
for l in lines:
|
|
m = common.TRIPLE_IR_RE.match(l)
|
|
if m:
|
|
return m.group(1)
|
|
return None
|
|
|
|
|
|
def find_run_lines(test, lines, verbose=False):
|
|
raw_lines = [m.group(1)
|
|
for m in [common.RUN_LINE_RE.match(l) for l in lines] if m]
|
|
run_lines = [raw_lines[0]] if len(raw_lines) > 0 else []
|
|
for l in raw_lines[1:]:
|
|
if run_lines[-1].endswith("\\"):
|
|
run_lines[-1] = run_lines[-1].rstrip("\\") + " " + l
|
|
else:
|
|
run_lines.append(l)
|
|
if verbose:
|
|
log('Found {} RUN lines:'.format(len(run_lines)))
|
|
for l in run_lines:
|
|
log(' RUN: {}'.format(l))
|
|
return run_lines
|
|
|
|
|
|
def build_run_list(test, run_lines, verbose=False):
|
|
run_list = []
|
|
all_prefixes = []
|
|
for l in run_lines:
|
|
commands = [cmd.strip() for cmd in l.split('|', 1)]
|
|
llc_cmd = commands[0]
|
|
filecheck_cmd = commands[1] if len(commands) > 1 else ''
|
|
|
|
if not llc_cmd.startswith('llc '):
|
|
warn('Skipping non-llc RUN line: {}'.format(l), test_file=test)
|
|
continue
|
|
if not filecheck_cmd.startswith('FileCheck '):
|
|
warn('Skipping non-FileChecked RUN line: {}'.format(l),
|
|
test_file=test)
|
|
continue
|
|
|
|
triple = None
|
|
m = common.TRIPLE_ARG_RE.search(llc_cmd)
|
|
if m:
|
|
triple = m.group(1)
|
|
# If we find -march but not -mtriple, use that.
|
|
m = common.MARCH_ARG_RE.search(llc_cmd)
|
|
if m and not triple:
|
|
triple = '{}--'.format(m.group(1))
|
|
|
|
cmd_args = llc_cmd[len('llc'):].strip()
|
|
cmd_args = cmd_args.replace('< %s', '').replace('%s', '').strip()
|
|
|
|
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']
|
|
all_prefixes += check_prefixes
|
|
|
|
run_list.append(Run(check_prefixes, cmd_args, triple))
|
|
|
|
# Remove any common prefixes. We'll just leave those entirely alone.
|
|
common_prefixes = set([prefix for prefix in all_prefixes
|
|
if all_prefixes.count(prefix) > 1])
|
|
for run in run_list:
|
|
run.prefixes = [p for p in run.prefixes if p not in common_prefixes]
|
|
|
|
return run_list, common_prefixes
|
|
|
|
|
|
def find_functions_with_one_bb(lines, verbose=False):
|
|
result = []
|
|
cur_func = None
|
|
bbs = 0
|
|
for line in lines:
|
|
m = MIR_FUNC_NAME_RE.match(line)
|
|
if m:
|
|
if bbs == 1:
|
|
result.append(cur_func)
|
|
cur_func = m.group('func')
|
|
bbs = 0
|
|
m = MIR_BASIC_BLOCK_RE.match(line)
|
|
if m:
|
|
bbs += 1
|
|
if bbs == 1:
|
|
result.append(cur_func)
|
|
return result
|
|
|
|
|
|
def build_function_body_dictionary(test, raw_tool_output, triple, prefixes,
|
|
func_dict, verbose):
|
|
for m in MIR_FUNC_RE.finditer(raw_tool_output):
|
|
func = m.group('func')
|
|
body = m.group('body')
|
|
if verbose:
|
|
log('Processing function: {}'.format(func))
|
|
for l in body.splitlines():
|
|
log(' {}'.format(l))
|
|
for prefix in prefixes:
|
|
if func in func_dict[prefix] and func_dict[prefix][func] != body:
|
|
warn('Found conflicting asm for prefix: {}'.format(prefix),
|
|
test_file=test)
|
|
func_dict[prefix][func] = body
|
|
|
|
|
|
def add_checks_for_function(test, output_lines, run_list, func_dict, func_name,
|
|
single_bb, verbose=False):
|
|
printed_prefixes = set()
|
|
for run in run_list:
|
|
for prefix in run.prefixes:
|
|
if prefix in printed_prefixes:
|
|
continue
|
|
if not func_dict[prefix][func_name]:
|
|
continue
|
|
# if printed_prefixes:
|
|
# # Add some space between different check prefixes.
|
|
# output_lines.append('')
|
|
printed_prefixes.add(prefix)
|
|
log('Adding {} lines for {}'.format(prefix, func_name), verbose)
|
|
add_check_lines(test, output_lines, prefix, func_name, single_bb,
|
|
func_dict[prefix][func_name].splitlines())
|
|
break
|
|
return output_lines
|
|
|
|
|
|
def add_check_lines(test, output_lines, prefix, func_name, single_bb,
|
|
func_body):
|
|
if single_bb:
|
|
# Don't bother checking the basic block label for a single BB
|
|
func_body.pop(0)
|
|
|
|
if not func_body:
|
|
warn('Function has no instructions to check: {}'.format(func_name),
|
|
test_file=test)
|
|
return
|
|
|
|
first_line = func_body[0]
|
|
indent = len(first_line) - len(first_line.lstrip(' '))
|
|
# A check comment, indented the appropriate amount
|
|
check = '{:>{}}; {}'.format('', indent, prefix)
|
|
|
|
output_lines.append('{}-LABEL: name: {}'.format(check, func_name))
|
|
|
|
vreg_map = {}
|
|
for func_line in func_body:
|
|
if not func_line.strip():
|
|
continue
|
|
m = VREG_DEF_RE.match(func_line)
|
|
if m:
|
|
for vreg in VREG_RE.finditer(m.group('vregs')):
|
|
name = mangle_vreg(m.group('opcode'), vreg_map.values())
|
|
vreg_map[vreg.group(1)] = name
|
|
func_line = func_line.replace(
|
|
vreg.group(1), '[[{}:%[0-9]+]]'.format(name), 1)
|
|
for number, name in vreg_map.items():
|
|
func_line = re.sub(r'{}\b'.format(number), '[[{}]]'.format(name),
|
|
func_line)
|
|
check_line = '{}: {}'.format(check, func_line[indent:]).rstrip()
|
|
output_lines.append(check_line)
|
|
|
|
|
|
def mangle_vreg(opcode, current_names):
|
|
base = opcode
|
|
# Simplify some common prefixes and suffixes
|
|
if opcode.startswith('G_'):
|
|
base = base[len('G_'):]
|
|
if opcode.endswith('_PSEUDO'):
|
|
base = base[:len('_PSEUDO')]
|
|
# Shorten some common opcodes with long-ish names
|
|
base = dict(IMPLICIT_DEF='DEF',
|
|
GLOBAL_VALUE='GV',
|
|
CONSTANT='C',
|
|
FCONSTANT='C',
|
|
MERGE_VALUES='MV',
|
|
UNMERGE_VALUES='UV',
|
|
INTRINSIC='INT',
|
|
INTRINSIC_W_SIDE_EFFECTS='INT',
|
|
INSERT_VECTOR_ELT='IVEC',
|
|
EXTRACT_VECTOR_ELT='EVEC',
|
|
SHUFFLE_VECTOR='SHUF').get(base, base)
|
|
# Avoid ambiguity when opcodes end in numbers
|
|
if len(base.rstrip('0123456789')) < len(base):
|
|
base += '_'
|
|
|
|
i = 0
|
|
for name in current_names:
|
|
if name.rstrip('0123456789') == base:
|
|
i += 1
|
|
if i:
|
|
return '{}{}'.format(base, i)
|
|
return base
|
|
|
|
|
|
def should_add_line_to_output(input_line, prefix_set):
|
|
# Skip any check lines that we're handling.
|
|
m = common.CHECK_RE.match(input_line)
|
|
if m and m.group(1) in prefix_set:
|
|
return False
|
|
return True
|
|
|
|
|
|
def update_test_file(llc, test, remove_common_prefixes=False, verbose=False):
|
|
log('Scanning for RUN lines in test file: {}'.format(test), verbose)
|
|
with open(test) as fd:
|
|
input_lines = [l.rstrip() for l in fd]
|
|
|
|
triple_in_ir = find_triple_in_ir(input_lines, verbose)
|
|
run_lines = find_run_lines(test, input_lines, verbose)
|
|
run_list, common_prefixes = build_run_list(test, run_lines, verbose)
|
|
|
|
simple_functions = find_functions_with_one_bb(input_lines, verbose)
|
|
|
|
func_dict = {}
|
|
for run in run_list:
|
|
for prefix in run.prefixes:
|
|
func_dict.update({prefix: dict()})
|
|
for prefixes, llc_args, triple_in_cmd in run_list:
|
|
log('Extracted LLC cmd: llc {}'.format(llc_args), verbose)
|
|
log('Extracted FileCheck prefixes: {}'.format(prefixes), verbose)
|
|
|
|
raw_tool_output = llc(llc_args, test)
|
|
if not triple_in_cmd and not triple_in_ir:
|
|
warn('No triple found: skipping file', test_file=test)
|
|
return
|
|
|
|
build_function_body_dictionary(test, raw_tool_output,
|
|
triple_in_cmd or triple_in_ir,
|
|
prefixes, func_dict, verbose)
|
|
|
|
state = 'toplevel'
|
|
func_name = None
|
|
prefix_set = set([prefix for run in run_list for prefix in run.prefixes])
|
|
log('Rewriting FileCheck prefixes: {}'.format(prefix_set), verbose)
|
|
|
|
if remove_common_prefixes:
|
|
prefix_set.update(common_prefixes)
|
|
elif common_prefixes:
|
|
warn('Ignoring common prefixes: {}'.format(common_prefixes),
|
|
test_file=test)
|
|
|
|
comment_char = '#' if test.endswith('.mir') else ';'
|
|
autogenerated_note = ('{} NOTE: Assertions have been autogenerated by '
|
|
'utils/{}'.format(comment_char,
|
|
os.path.basename(__file__)))
|
|
output_lines = []
|
|
output_lines.append(autogenerated_note)
|
|
|
|
for input_line in input_lines:
|
|
if input_line == autogenerated_note:
|
|
continue
|
|
|
|
if state == 'toplevel':
|
|
m = IR_FUNC_NAME_RE.match(input_line)
|
|
if m:
|
|
state = 'ir function prefix'
|
|
func_name = m.group('func')
|
|
if input_line.rstrip('| \r\n') == '---':
|
|
state = 'document'
|
|
output_lines.append(input_line)
|
|
elif state == 'document':
|
|
m = MIR_FUNC_NAME_RE.match(input_line)
|
|
if m:
|
|
state = 'mir function metadata'
|
|
func_name = m.group('func')
|
|
if input_line.strip() == '...':
|
|
state = 'toplevel'
|
|
func_name = None
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
output_lines.append(input_line)
|
|
elif state == 'mir function metadata':
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
output_lines.append(input_line)
|
|
m = MIR_BODY_BEGIN_RE.match(input_line)
|
|
if m:
|
|
if func_name in simple_functions:
|
|
# If there's only one block, put the checks inside it
|
|
state = 'mir function prefix'
|
|
continue
|
|
state = 'mir function body'
|
|
add_checks_for_function(test, output_lines, run_list,
|
|
func_dict, func_name, single_bb=False,
|
|
verbose=verbose)
|
|
elif state == 'mir function prefix':
|
|
m = MIR_PREFIX_DATA_RE.match(input_line)
|
|
if not m:
|
|
state = 'mir function body'
|
|
add_checks_for_function(test, output_lines, run_list,
|
|
func_dict, func_name, single_bb=True,
|
|
verbose=verbose)
|
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
output_lines.append(input_line)
|
|
elif state == 'mir function body':
|
|
if input_line.strip() == '...':
|
|
state = 'toplevel'
|
|
func_name = None
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
output_lines.append(input_line)
|
|
elif state == 'ir function prefix':
|
|
m = IR_PREFIX_DATA_RE.match(input_line)
|
|
if not m:
|
|
state = 'ir function body'
|
|
add_checks_for_function(test, output_lines, run_list,
|
|
func_dict, func_name, single_bb=False,
|
|
verbose=verbose)
|
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
output_lines.append(input_line)
|
|
elif state == 'ir function body':
|
|
if input_line.strip() == '}':
|
|
state = 'toplevel'
|
|
func_name = None
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
output_lines.append(input_line)
|
|
|
|
|
|
log('Writing {} lines to {}...'.format(len(output_lines), test), verbose)
|
|
|
|
with open(test, 'wb') as fd:
|
|
fd.writelines([l + '\n' for l in output_lines])
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(
|
|
description=__doc__, formatter_class=argparse.RawTextHelpFormatter)
|
|
parser.add_argument('-v', '--verbose', action='store_true',
|
|
help='Show verbose output')
|
|
parser.add_argument('--llc-binary', dest='llc', default='llc', type=LLC,
|
|
help='The "llc" binary to generate the test case with')
|
|
parser.add_argument('--remove-common-prefixes', action='store_true',
|
|
help='Remove existing check lines whose prefixes are '
|
|
'shared between multiple commands')
|
|
parser.add_argument('tests', nargs='+')
|
|
args = parser.parse_args()
|
|
|
|
for test in args.tests:
|
|
try:
|
|
update_test_file(args.llc, test, args.remove_common_prefixes,
|
|
verbose=args.verbose)
|
|
except Exception:
|
|
warn('Error processing file', test_file=test)
|
|
raise
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|