d53de9b7ac
Support the pattern where a test file uses multiple prefixes per run line: one prefix that is unique to the run line, and additional prefixes that are common with other run lines. Decide on a per-function basis which prefix(es) to emit, based on which run lines have the same output. Move the renaming of vregs earlier, so that we can compare the output as it would actually be printed in check lines. Differential Revision: https://reviews.llvm.org/D126411
442 lines
16 KiB
Python
Executable File
442 lines
16 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
"""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 glob
|
|
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_]+)?(?:\([<>a-z0-9 ]+\))?')
|
|
MI_FLAGS_STR= (
|
|
r'(frame-setup |frame-destroy |nnan |ninf |nsz |arcp |contract |afn '
|
|
r'|reassoc |nuw |nsw |exact |fpexcept )*')
|
|
VREG_DEF_RE = re.compile(
|
|
r'^ *(?P<vregs>{0}(?:, {0})*) = '
|
|
r'{1}(?P<opcode>[A-Zt][A-Za-z0-9_]+)'.format(VREG_RE.pattern, MI_FLAGS_STR))
|
|
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)
|
|
if sys.version_info[0] > 2:
|
|
stdout = stdout.decode()
|
|
# 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 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 build_run_list(test, run_lines, verbose=False):
|
|
run_list = []
|
|
all_prefixes = []
|
|
for l in 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]
|
|
filecheck_cmd = commands[1] if len(commands) > 1 else ''
|
|
common.verify_filecheck_prefixes(filecheck_cmd)
|
|
|
|
if not llc_cmd.startswith('llc '):
|
|
common.warn('Skipping non-llc RUN line: {}'.format(l), test_file=test)
|
|
continue
|
|
if not filecheck_cmd.startswith('FileCheck '):
|
|
common.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))
|
|
|
|
# Sort prefixes that are shared between run lines before unshared prefixes.
|
|
# This causes us to prefer printing shared prefixes.
|
|
for run in run_list:
|
|
run.prefixes.sort(key=lambda prefix: -all_prefixes.count(prefix))
|
|
|
|
return run_list
|
|
|
|
|
|
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))
|
|
|
|
# Vreg mangling
|
|
mangled = []
|
|
vreg_map = {}
|
|
for func_line in body.splitlines(keepends=True):
|
|
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)
|
|
mangled.append(func_line)
|
|
body = ''.join(mangled)
|
|
|
|
for prefix in prefixes:
|
|
if func in func_dict[prefix]:
|
|
if func_dict[prefix][func] != body:
|
|
func_dict[prefix][func] = None
|
|
else:
|
|
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:
|
|
break
|
|
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
|
|
else:
|
|
common.warn(
|
|
'Found conflicting asm for function: {}'.format(func_name),
|
|
test_file=test)
|
|
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:
|
|
common.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))
|
|
first_check = True
|
|
|
|
for func_line in func_body:
|
|
if not func_line.strip():
|
|
# The mir printer prints leading whitespace so we can't use CHECK-EMPTY:
|
|
output_lines.append(check + '-NEXT: {{' + func_line + '$}}')
|
|
continue
|
|
filecheck_directive = check if first_check else check + '-NEXT'
|
|
first_check = False
|
|
check_line = '{}: {}'.format(filecheck_directive, 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(args, test):
|
|
with open(test) as fd:
|
|
input_lines = [l.rstrip() for l in fd]
|
|
|
|
script_name = os.path.basename(__file__)
|
|
first_line = input_lines[0] if input_lines else ""
|
|
if 'autogenerated' in first_line and script_name not in first_line:
|
|
common.warn("Skipping test which wasn't autogenerated by " +
|
|
script_name + ": " + test)
|
|
return
|
|
|
|
if args.update_only:
|
|
if not first_line or 'autogenerated' not in first_line:
|
|
common.warn("Skipping test which isn't autogenerated: " + test)
|
|
return
|
|
|
|
triple_in_ir = find_triple_in_ir(input_lines, args.verbose)
|
|
run_lines = common.find_run_lines(test, input_lines)
|
|
run_list = build_run_list(test, run_lines, args.verbose)
|
|
|
|
simple_functions = find_functions_with_one_bb(input_lines, args.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), args.verbose)
|
|
log('Extracted FileCheck prefixes: {}'.format(prefixes), args.verbose)
|
|
|
|
raw_tool_output = args.llc(llc_args, test)
|
|
if not triple_in_cmd and not triple_in_ir:
|
|
common.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, args.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), args.verbose)
|
|
|
|
comment_char = '#' if test.endswith('.mir') else ';'
|
|
autogenerated_note = ('{} NOTE: Assertions have been autogenerated by '
|
|
'utils/{}'.format(comment_char, script_name))
|
|
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=args.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=args.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=args.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), args.verbose)
|
|
|
|
with open(test, 'wb') as fd:
|
|
fd.writelines(['{}\n'.format(l).encode('utf-8') for l in output_lines])
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(
|
|
description=__doc__, formatter_class=argparse.RawTextHelpFormatter)
|
|
parser.add_argument('--llc-binary', dest='llc', default='llc', type=LLC,
|
|
help='The "llc" binary to generate the test case with')
|
|
parser.add_argument('tests', nargs='+')
|
|
args = common.parse_commandline_args(parser)
|
|
|
|
test_paths = [test for pattern in args.tests for test in glob.glob(pattern)]
|
|
for test in test_paths:
|
|
try:
|
|
update_test_file(args, test)
|
|
except Exception:
|
|
common.warn('Error processing file', test_file=test)
|
|
raise
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|