maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/utils/UpdateTestChecks/common.py

432 lines
16 KiB
Python
Raw Blame History

from __future__ import print_function
import re
import string
import subprocess
import sys
import copy
if sys.version_info[0] > 2:
class string:
expandtabs = str.expandtabs
else:
import string
##### Common utilities for update_*test_checks.py
_verbose = False
def parse_commandline_args(parser):
parser.add_argument('-v', '--verbose', action='store_true',
help='Show verbose output')
parser.add_argument('-u', '--update-only', action='store_true',
help='Only update test if it was already autogened')
args = parser.parse_args()
global _verbose
_verbose = args.verbose
return args
def should_add_line_to_output(input_line, prefix_set):
# Skip any blank comment lines in the IR.
if input_line.strip() == ';':
return False
# Skip any blank lines in the IR.
#if input_line.strip() == '':
# return False
# And skip any CHECK lines. We're building our own.
m = CHECK_RE.match(input_line)
if m and m.group(1) in prefix_set:
return False
return True
# Invoke the tool that is being tested.
def invoke_tool(exe, cmd_args, ir):
with open(ir) as ir_file:
# TODO Remove the str form which is used by update_test_checks.py and
# update_llc_test_checks.py
# The safer list form is used by update_cc_test_checks.py
if isinstance(cmd_args, list):
stdout = subprocess.check_output([exe] + cmd_args, stdin=ir_file)
else:
stdout = subprocess.check_output(exe + ' ' + cmd_args,
shell=True, stdin=ir_file)
if sys.version_info[0] > 2:
stdout = stdout.decode()
# Fix line endings to unix CR style.
return stdout.replace('\r\n', '\n')
##### LLVM IR parser
RUN_LINE_RE = re.compile(r'^\s*(?://|[;#])\s*RUN:\s*(.*)$')
CHECK_PREFIX_RE = re.compile(r'--?check-prefix(?:es)?[= ](\S+)')
PREFIX_RE = re.compile('^[a-zA-Z0-9_-]+$')
CHECK_RE = re.compile(r'^\s*(?://|[;#])\s*([^:]+?)(?:-NEXT|-NOT|-DAG|-LABEL|-SAME|-EMPTY)?:')
UTC_ARGS_KEY = 'UTC_ARGS:'
UTC_ARGS_CMD = re.compile(r'.*' + UTC_ARGS_KEY + '\s*(?P<cmd>.*)\s*$')
OPT_FUNCTION_RE = re.compile(
r'^\s*define\s+(?:internal\s+)?[^@]*@(?P<func>[\w.-]+?)\s*'
r'(?P<args_and_sig>\((\)|(.*?[\w.-]+?)\))[^{]*)\{\n(?P<body>.*?)^\}$',
flags=(re.M | re.S))
ANALYZE_FUNCTION_RE = re.compile(
r'^\s*\'(?P<analysis>[\w\s-]+?)\'\s+for\s+function\s+\'(?P<func>[\w.-]+?)\':'
r'\s*\n(?P<body>.*)$',
flags=(re.X | re.S))
IR_FUNCTION_RE = re.compile(r'^\s*define\s+(?:internal\s+)?[^@]*@([\w.-]+)\s*\(')
TRIPLE_IR_RE = re.compile(r'^\s*target\s+triple\s*=\s*"([^"]+)"$')
TRIPLE_ARG_RE = re.compile(r'-mtriple[= ]([^ ]+)')
MARCH_ARG_RE = re.compile(r'-march[= ]([^ ]+)')
SCRUB_LEADING_WHITESPACE_RE = re.compile(r'^(\s+)')
SCRUB_WHITESPACE_RE = re.compile(r'(?!^(| \w))[ \t]+', flags=re.M)
SCRUB_TRAILING_WHITESPACE_RE = re.compile(r'[ \t]+$', flags=re.M)
SCRUB_TRAILING_WHITESPACE_TEST_RE = SCRUB_TRAILING_WHITESPACE_RE
SCRUB_TRAILING_WHITESPACE_AND_ATTRIBUTES_RE = re.compile(r'([ \t]|(#[0-9]+))+$', flags=re.M)
SCRUB_KILL_COMMENT_RE = re.compile(r'^ *#+ +kill:.*\n')
SCRUB_LOOP_COMMENT_RE = re.compile(
r'# =>This Inner Loop Header:.*|# in Loop:.*', flags=re.M)
SCRUB_TAILING_COMMENT_TOKEN_RE = re.compile(r'(?<=\S)+[ \t]*#$', flags=re.M)
def error(msg, test_file=None):
if test_file:
msg = '{}: {}'.format(msg, test_file)
print('ERROR: {}'.format(msg), file=sys.stderr)
def warn(msg, test_file=None):
if test_file:
msg = '{}: {}'.format(msg, test_file)
print('WARNING: {}'.format(msg), file=sys.stderr)
def debug(*args, **kwargs):
# Python2 does not allow def debug(*args, file=sys.stderr, **kwargs):
if 'file' not in kwargs:
kwargs['file'] = sys.stderr
if _verbose:
print(*args, **kwargs)
def find_run_lines(test, lines):
debug('Scanning for RUN lines in test file:', test)
raw_lines = [m.group(1)
for m in [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)
debug('Found {} RUN lines in {}:'.format(len(run_lines), test))
for l in run_lines:
debug(' RUN: {}'.format(l))
return run_lines
def scrub_body(body):
# Scrub runs of whitespace out of the assembly, but leave the leading
# whitespace in place.
body = SCRUB_WHITESPACE_RE.sub(r' ', body)
# Expand the tabs used for indentation.
body = string.expandtabs(body, 2)
# Strip trailing whitespace.
body = SCRUB_TRAILING_WHITESPACE_TEST_RE.sub(r'', body)
return body
def do_scrub(body, scrubber, scrubber_args, extra):
if scrubber_args:
local_args = copy.deepcopy(scrubber_args)
local_args[0].extra_scrub = extra
return scrubber(body, *local_args)
return scrubber(body, *scrubber_args)
# Build up a dictionary of all the function bodies.
class function_body(object):
def __init__(self, string, extra, args_and_sig):
self.scrub = string
self.extrascrub = extra
self.args_and_sig = args_and_sig
def is_same_except_arg_names(self, extrascrub, args_and_sig):
arg_names = set()
def drop_arg_names(match):
arg_names.add(match.group(2))
return match.group(1) + match.group(3)
def repl_arg_names(match):
if match.group(2) in arg_names:
return match.group(1) + match.group(3)
return match.group(1) + match.group(2) + match.group(3)
ans0 = IR_VALUE_RE.sub(drop_arg_names, self.args_and_sig)
ans1 = IR_VALUE_RE.sub(drop_arg_names, args_and_sig)
if ans0 != ans1:
return False
es0 = IR_VALUE_RE.sub(repl_arg_names, self.extrascrub)
es1 = IR_VALUE_RE.sub(repl_arg_names, extrascrub)
es0 = SCRUB_IR_COMMENT_RE.sub(r'', es0)
es1 = SCRUB_IR_COMMENT_RE.sub(r'', es1)
return es0 == es1
def __str__(self):
return self.scrub
def build_function_body_dictionary(function_re, scrubber, scrubber_args, raw_tool_output, prefixes, func_dict, verbose, record_args):
for m in function_re.finditer(raw_tool_output):
if not m:
continue
func = m.group('func')
body = m.group('body')
# Determine if we print arguments, the opening brace, or nothing after the function name
if record_args and 'args_and_sig' in m.groupdict():
args_and_sig = scrub_body(m.group('args_and_sig').strip())
elif 'args_and_sig' in m.groupdict():
args_and_sig = '('
else:
args_and_sig = ''
scrubbed_body = do_scrub(body, scrubber, scrubber_args, extra = False)
scrubbed_extra = do_scrub(body, scrubber, scrubber_args, extra = True)
if 'analysis' in m.groupdict():
analysis = m.group('analysis')
if analysis.lower() != 'cost model analysis':
warn('Unsupported analysis mode: %r!' % (analysis,))
if func.startswith('stress'):
# We only use the last line of the function body for stress tests.
scrubbed_body = '\n'.join(scrubbed_body.splitlines()[-1:])
if verbose:
print('Processing function: ' + func, file=sys.stderr)
for l in scrubbed_body.splitlines():
print(' ' + l, file=sys.stderr)
for prefix in prefixes:
if func in func_dict[prefix] and (str(func_dict[prefix][func]) != scrubbed_body or (func_dict[prefix][func] and func_dict[prefix][func].args_and_sig != args_and_sig)):
if func_dict[prefix][func] and func_dict[prefix][func].is_same_except_arg_names(scrubbed_extra, args_and_sig):
func_dict[prefix][func].scrub = scrubbed_extra
func_dict[prefix][func].args_and_sig = args_and_sig
continue
else:
if prefix == prefixes[-1]:
warn('Found conflicting asm under the same prefix: %r!' % (prefix,))
else:
func_dict[prefix][func] = None
continue
func_dict[prefix][func] = function_body(scrubbed_body, scrubbed_extra, args_and_sig)
##### Generator of LLVM IR CHECK lines
SCRUB_IR_COMMENT_RE = re.compile(r'\s*;.*')
# Match things that look at identifiers, but only if they are followed by
# spaces, commas, paren, or end of the string
IR_VALUE_RE = re.compile(r'(\s+)%([\w.-]+?)([,\s\(\)]|\Z)')
# Create a FileCheck variable name based on an IR name.
def get_value_name(var):
if var.isdigit():
var = 'TMP' + var
var = var.replace('.', '_')
var = var.replace('-', '_')
return var.upper()
# Create a FileCheck variable from regex.
def get_value_definition(var):
return '[[' + get_value_name(var) + ':%.*]]'
# Use a FileCheck variable.
def get_value_use(var):
return '[[' + get_value_name(var) + ']]'
# Replace IR value defs and uses with FileCheck variables.
def genericize_check_lines(lines, is_analyze, vars_seen):
# This gets called for each match that occurs in
# a line. We transform variables we haven't seen
# into defs, and variables we have seen into uses.
def transform_line_vars(match):
var = match.group(2)
if var in vars_seen:
rv = get_value_use(var)
else:
vars_seen.add(var)
rv = get_value_definition(var)
# re.sub replaces the entire regex match
# with whatever you return, so we have
# to make sure to hand it back everything
# including the commas and spaces.
return match.group(1) + rv + match.group(3)
lines_with_def = []
for i, line in enumerate(lines):
# An IR variable named '%.' matches the FileCheck regex string.
line = line.replace('%.', '%dot')
# Ignore any comments, since the check lines will too.
scrubbed_line = SCRUB_IR_COMMENT_RE.sub(r'', line)
if is_analyze:
lines[i] = scrubbed_line
else:
lines[i] = IR_VALUE_RE.sub(transform_line_vars, scrubbed_line)
return lines
def add_checks(output_lines, comment_marker, prefix_list, func_dict, func_name, check_label_format, is_asm, is_analyze):
# prefix_blacklist are prefixes we cannot use to print the function because it doesn't exist in run lines that use these prefixes as well.
prefix_blacklist = set()
printed_prefixes = []
for p in prefix_list:
checkprefixes = p[0]
# If not all checkprefixes of this run line produced the function we cannot check for it as it does not
# exist for this run line. A subset of the check prefixes might know about the function but only because
# other run lines created it.
if any(map(lambda checkprefix: func_name not in func_dict[checkprefix], checkprefixes)):
prefix_blacklist |= set(checkprefixes)
continue
# prefix_blacklist is constructed, we can now emit the output
for p in prefix_list:
checkprefixes = p[0]
for checkprefix in checkprefixes:
if checkprefix in printed_prefixes:
break
# Check if the prefix is blacklisted.
if checkprefix in prefix_blacklist:
continue
# If we do not have output for this prefix we skip it.
if not func_dict[checkprefix][func_name]:
continue
# Add some space between different check prefixes, but not after the last
# check line (before the test code).
if is_asm:
if len(printed_prefixes) != 0:
output_lines.append(comment_marker)
vars_seen = set()
printed_prefixes.append(checkprefix)
args_and_sig = str(func_dict[checkprefix][func_name].args_and_sig)
args_and_sig = genericize_check_lines([args_and_sig], is_analyze, vars_seen)[0]
if '[[' in args_and_sig:
output_lines.append(check_label_format % (checkprefix, func_name, ''))
output_lines.append('%s %s-SAME: %s' % (comment_marker, checkprefix, args_and_sig))
else:
output_lines.append(check_label_format % (checkprefix, func_name, args_and_sig))
func_body = str(func_dict[checkprefix][func_name]).splitlines()
# For ASM output, just emit the check lines.
if is_asm:
output_lines.append('%s %s: %s' % (comment_marker, checkprefix, func_body[0]))
for func_line in func_body[1:]:
if func_line.strip() == '':
output_lines.append('%s %s-EMPTY:' % (comment_marker, checkprefix))
else:
output_lines.append('%s %s-NEXT: %s' % (comment_marker, checkprefix, func_line))
break
# For IR output, change all defs to FileCheck variables, so we're immune
# to variable naming fashions.
func_body = genericize_check_lines(func_body, is_analyze, vars_seen)
# This could be selectively enabled with an optional invocation argument.
# Disabled for now: better to check everything. Be safe rather than sorry.
# Handle the first line of the function body as a special case because
# it's often just noise (a useless asm comment or entry label).
#if func_body[0].startswith("#") or func_body[0].startswith("entry:"):
# is_blank_line = True
#else:
# output_lines.append('%s %s: %s' % (comment_marker, checkprefix, func_body[0]))
# is_blank_line = False
is_blank_line = False
for func_line in func_body:
if func_line.strip() == '':
is_blank_line = True
continue
# Do not waste time checking IR comments.
func_line = SCRUB_IR_COMMENT_RE.sub(r'', func_line)
# Skip blank lines instead of checking them.
if is_blank_line:
output_lines.append('{} {}: {}'.format(
comment_marker, checkprefix, func_line))
else:
output_lines.append('{} {}-NEXT: {}'.format(
comment_marker, checkprefix, func_line))
is_blank_line = False
# Add space between different check prefixes and also before the first
# line of code in the test function.
output_lines.append(comment_marker)
break
def add_ir_checks(output_lines, comment_marker, prefix_list, func_dict,
func_name, preserve_names, function_sig):
# Label format is based on IR string.
function_def_regex = 'define {{[^@]+}}' if function_sig else ''
check_label_format = '{} %s-LABEL: {}@%s%s'.format(comment_marker, function_def_regex)
add_checks(output_lines, comment_marker, prefix_list, func_dict, func_name,
check_label_format, False, preserve_names)
def add_analyze_checks(output_lines, comment_marker, prefix_list, func_dict, func_name):
check_label_format = '{} %s-LABEL: \'%s%s\''.format(comment_marker)
add_checks(output_lines, comment_marker, prefix_list, func_dict, func_name, check_label_format, False, True)
def check_prefix(prefix):
if not PREFIX_RE.match(prefix):
hint = ""
if ',' in prefix:
hint = " Did you mean '--check-prefixes=" + prefix + "'?"
warn(("Supplied prefix '%s' is invalid. Prefix must contain only alphanumeric characters, hyphens and underscores." + hint) %
(prefix))
def verify_filecheck_prefixes(fc_cmd):
fc_cmd_parts = fc_cmd.split()
for part in fc_cmd_parts:
if "check-prefix=" in part:
prefix = part.split('=', 1)[1]
check_prefix(prefix)
elif "check-prefixes=" in part:
prefixes = part.split('=', 1)[1].split(',')
for prefix in prefixes:
check_prefix(prefix)
if prefixes.count(prefix) > 1:
warn("Supplied prefix '%s' is not unique in the prefix list." % (prefix,))
def get_autogennote_suffix(parser, args):
autogenerated_note_args = ''
for action in parser._actions:
if not hasattr(args, action.dest):
continue # Ignore options such as --help that aren't included in args
# Ignore parameters such as paths to the binary or the list of tests
if action.dest in ('tests', 'update_only', 'opt_binary', 'llc_binary',
'clang', 'opt', 'llvm_bin', 'verbose'):
continue
value = getattr(args, action.dest)
if action.const is not None: # action stores a constant (usually True/False)
# Skip actions with different constant values (this happens with boolean
# --foo/--no-foo options)
if value != action.const:
continue
if parser.get_default(action.dest) == value:
continue # Don't add default values
autogenerated_note_args += action.option_strings[0] + ' '
if action.const is None: # action takes a parameter
autogenerated_note_args += '%s ' % value
if autogenerated_note_args:
autogenerated_note_args = ' %s %s' % (UTC_ARGS_KEY, autogenerated_note_args[:-1])
return autogenerated_note_args
def check_for_command(line, parser, args, argv):
cmd_m = UTC_ARGS_CMD.match(line)
if cmd_m:
cmd = cmd_m.group('cmd').strip().split(' ')
argv = argv + cmd
args = parser.parse_args(filter(lambda arg: arg not in args.tests, argv))
return args, argv
Reference in New Issue View Git Blame Copy Permalink