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# ==--- opt_bug_reducer_test.py ------------------------------------------===#
#
# This source file is part of the Swift.org open source project
#
# Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
# Licensed under Apache License v2.0 with Runtime Library Exception
#
# See https://swift.org/LICENSE.txt for license information
# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
#
# ==----------------------------------------------------------------------===#
import json
import os
import platform
import random
import re
import shutil
import subprocess
import unittest
import bug_reducer.swift_tools as swift_tools
@unittest.skipUnless(platform.system() == 'Darwin',
'opt_bug_reducer is only available on Darwin for now')
class OptBugReducerTestCase(unittest.TestCase):
def setUp(self):
self.file_dir = os.path.dirname(os.path.abspath(__file__))
self.reducer = os.path.join(os.path.dirname(self.file_dir),
'bug_reducer', 'bug_reducer.py')
self.build_dir = os.path.abspath(
os.environ['BUGREDUCE_TEST_SWIFT_OBJ_ROOT'])
(root, _) = os.path.splitext(os.path.abspath(__file__))
self.root_basename = ''.join(os.path.basename(root).split('_'))
self.tmp_dir = os.path.join(os.path.abspath(
os.environ['BUGREDUCE_TEST_TMP_DIR']),
self.root_basename)
subprocess.call(['mkdir', '-p', self.tmp_dir])
self.module_cache = os.path.join(self.tmp_dir, 'module_cache')
self.sdk = subprocess.check_output(['xcrun', '--sdk', 'macosx',
'--toolchain', 'Default',
'--show-sdk-path']).strip("\n")
self.tools = swift_tools.SwiftTools(self.build_dir)
json_data = json.loads(subprocess.check_output(
[self.tools.sil_passpipeline_dumper, '-Performance']))
self.passes = []
for y in (x[2:] for x in json_data):
for z in y:
self.passes.append('--pass=-' + z[1])
random.seed(0xf487c07f)
random.shuffle(self.passes)
self.passes.insert(random.randint(0, len(self.passes)),
'--pass=-bug-reducer-tester')
if os.access(self.tmp_dir, os.F_OK):
shutil.rmtree(self.tmp_dir)
os.makedirs(self.tmp_dir)
os.makedirs(self.module_cache)
def _get_test_file_path(self, module_name):
return os.path.join(self.file_dir,
'{}_{}.swift'.format(
self.root_basename, module_name))
def _get_sib_file_path(self, filename):
(root, ext) = os.path.splitext(filename)
return os.path.join(self.tmp_dir, os.path.basename(root) + '.sib')
def run_swiftc_command(self, name):
input_file_path = self._get_test_file_path(name)
args = [self.tools.swiftc,
'-module-cache-path', self.module_cache,
'-sdk', self.sdk,
'-Onone', '-parse-as-library',
'-module-name', name,
'-emit-sib',
'-resource-dir', os.path.join(self.build_dir, 'lib', 'swift'),
'-o', self._get_sib_file_path(input_file_path),
input_file_path]
subprocess.check_call(args)
def test_basic(self):
name = 'testbasic'
self.run_swiftc_command(name)
args = [
self.reducer,
'opt',
self.build_dir,
self._get_sib_file_path(self._get_test_file_path(name)),
'--sdk=%s' % self.sdk,
'--module-cache=%s' % self.module_cache,
'--module-name=%s' % name,
'--work-dir=%s' % self.tmp_dir,
'--extra-arg=-bug-reducer-tester-target-func=test_target',
'--extra-arg=-bug-reducer-tester-failure-kind=opt-crasher'
]
args.extend(self.passes)
output = subprocess.check_output(args).split("\n")
self.assertTrue('*** Found miscompiling passes!' in output)
self.assertTrue('*** Final Passes: --bug-reducer-tester' in output)
re_end = 'testoptbugreducer_testbasic_initial'
output_file_re = re.compile(r'\*\*\* Final File: .*' + re_end)
output_matches = [
1 for o in output if output_file_re.match(o) is not None]
self.assertEqual(sum(output_matches), 1)
# Make sure our final output command does not have -emit-sib in
# the output. We want users to get sil output when they type in
# the relevant command.
self.assertEqual([], [o for o in output if '-emit-sib' in o])
def test_suffix_in_need_of_prefix(self):
name = 'testsuffixinneedofprefix'
self.run_swiftc_command(name)
args = [
self.reducer,
'opt',
self.build_dir,
self._get_sib_file_path(self._get_test_file_path(name)),
'--sdk=%s' % self.sdk,
'--module-cache=%s' % self.module_cache,
'--module-name=%s' % name,
'--work-dir=%s' % self.tmp_dir,
'--extra-arg=-bug-reducer-tester-target-func=closure_test_target',
'--extra-arg=-bug-reducer-tester-failure-kind=opt-crasher'
]
args.extend(self.passes)
output = subprocess.check_output(args).split("\n")
self.assertTrue('*** Found miscompiling passes!' in output)
self.assertTrue('*** Final Passes: --bug-reducer-tester' in output)
re_end = 'testoptbugreducer_testsuffixinneedofprefix_initial'
output_file_re = re.compile(r'\*\*\* Final File: .*' + re_end)
output_matches = [
1 for o in output if output_file_re.match(o) is not None]
self.assertEqual(sum(output_matches), 1)
# Make sure our final output command does not have -emit-sib in the
# output. We want users to get sil output when they type in the
# relevant command.
self.assertEqual([], [o for o in output if '-emit-sib' in o])
def test_reduce_function(self):
name = 'testreducefunction'
self.run_swiftc_command(name)
args = [
self.reducer,
'opt',
self.build_dir,
self._get_sib_file_path(self._get_test_file_path(name)),
'--sdk=%s' % self.sdk,
'--module-cache=%s' % self.module_cache,
'--module-name=%s' % name,
'--work-dir=%s' % self.tmp_dir,
'--extra-arg=-bug-reducer-tester-target-func=__TF_test_target',
'--extra-arg=-bug-reducer-tester-failure-kind=opt-crasher',
'--reduce-sil'
]
args.extend(self.passes)
output = subprocess.check_output(args).split("\n")
self.assertTrue('*** Found miscompiling passes!' in output)
self.assertTrue(
'*** Final Functions: $s18testreducefunction6foo413yyF' in output)
self.assertTrue('*** Final Passes: --bug-reducer-tester' in output)
re_end = 'testoptbugreducer_testreducefunction_initial_'
re_end += '30775a3d942671a403702a9846afa7a4.sib'
output_file_re = re.compile(r'\*\*\* Final File: .*' + re_end)
output_matches = [
1 for o in output if output_file_re.match(o) is not None]
self.assertEqual(sum(output_matches), 1)
# Make sure our final output command does not have -emit-sib in the
# output. We want users to get sil output when they type in the
# relevant command.
self.assertEqual([], [o for o in output if '-emit-sib' in o])
if __name__ == '__main__':
unittest.main()
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