v8/tools/run-tests.py
svenpanne@chromium.org f03fd70d9e Added a simple dead code removal phase.
We iteratively remove all dead Hydrogen instruction until we reach a fixed point. We consider an instruction dead if it is unused, has no observable side effects and is deletable. The last part of the condition is currently not very nice: We basically have to whitelist "safe" instructions, because we are missing more detailed dependencies and/or more detailed tracking of side effects.

We disable dead code elimination for now in our test runners, because we have tons of poorly written tests which wouldn't test anymore what they are supposed to test with this phase enabled. To get test coverage for dead code elimination itself, we should enable it on a few build bots. This is not really a perfect state, but the best we can do for now.

This patch includes a few const-correctness fixes, most of them were necessary for this CL.

Review URL: https://codereview.chromium.org/11088027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-10-11 10:52:58 +00:00

356 lines
13 KiB
Python
Executable File

#!/usr/bin/env python
#
# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import multiprocessing
import optparse
import os
from os.path import join
import subprocess
import sys
import time
from testrunner.local import execution
from testrunner.local import progress
from testrunner.local import testsuite
from testrunner.local import utils
from testrunner.local import verbose
from testrunner.network import network_execution
from testrunner.objects import context
ARCH_GUESS = utils.DefaultArch()
DEFAULT_TESTS = ["mjsunit", "cctest", "message", "preparser"]
TIMEOUT_DEFAULT = 60
TIMEOUT_SCALEFACTOR = {"debug" : 4,
"release" : 1 }
# Use this to run several variants of the tests.
VARIANT_FLAGS = [[],
["--stress-opt", "--always-opt"],
["--nocrankshaft"]]
MODE_FLAGS = {
"debug" : ["--nobreak-on-abort", "--nodead-code-elimination",
"--enable-slow-asserts", "--debug-code", "--verify-heap"],
"release" : ["--nobreak-on-abort", "--nodead-code-elimination"]}
def BuildOptions():
result = optparse.OptionParser()
result.add_option("--arch",
help=("The architecture to run tests for, "
"'auto' or 'native' for auto-detect"),
default="ia32,x64,arm")
result.add_option("--arch-and-mode",
help="Architecture and mode in the format 'arch.mode'",
default=None)
result.add_option("--buildbot",
help="Adapt to path structure used on buildbots",
default=False, action="store_true")
result.add_option("--cat", help="Print the source of the tests",
default=False, action="store_true")
result.add_option("--command-prefix",
help="Prepended to each shell command used to run a test",
default="")
result.add_option("--download-data", help="Download missing test suite data",
default=False, action="store_true")
result.add_option("--extra-flags",
help="Additional flags to pass to each test command",
default="")
result.add_option("--isolates", help="Whether to test isolates",
default=False, action="store_true")
result.add_option("-j", help="The number of parallel tasks to run",
default=0, type="int")
result.add_option("-m", "--mode",
help="The test modes in which to run (comma-separated)",
default="release,debug")
result.add_option("--no-network", "--nonetwork",
help="Don't distribute tests on the network",
default=(utils.GuessOS() != "linux"),
dest="no_network", action="store_true")
result.add_option("--no-presubmit", "--nopresubmit",
help='Skip presubmit checks',
default=False, dest="no_presubmit", action="store_true")
result.add_option("--no-stress", "--nostress",
help="Don't run crankshaft --always-opt --stress-op test",
default=False, dest="no_stress", action="store_true")
result.add_option("--outdir", help="Base directory with compile output",
default="out")
result.add_option("-p", "--progress",
help=("The style of progress indicator"
" (verbose, dots, color, mono)"),
choices=progress.PROGRESS_INDICATORS.keys(), default="mono")
result.add_option("--report", help="Print a summary of the tests to be run",
default=False, action="store_true")
result.add_option("--shard-count",
help="Split testsuites into this number of shards",
default=1, type="int")
result.add_option("--shard-run",
help="Run this shard from the split up tests.",
default=1, type="int")
result.add_option("--shell", help="DEPRECATED! use --shell-dir", default="")
result.add_option("--shell-dir", help="Directory containing executables",
default="")
result.add_option("--stress-only",
help="Only run tests with --always-opt --stress-opt",
default=False, action="store_true")
result.add_option("--time", help="Print timing information after running",
default=False, action="store_true")
result.add_option("-t", "--timeout", help="Timeout in seconds",
default= -1, type="int")
result.add_option("-v", "--verbose", help="Verbose output",
default=False, action="store_true")
result.add_option("--valgrind", help="Run tests through valgrind",
default=False, action="store_true")
result.add_option("--warn-unused", help="Report unused rules",
default=False, action="store_true")
return result
def ProcessOptions(options):
global VARIANT_FLAGS
# Architecture and mode related stuff.
if options.arch_and_mode:
tokens = options.arch_and_mode.split(".")
options.arch = tokens[0]
options.mode = tokens[1]
options.mode = options.mode.split(",")
for mode in options.mode:
if not mode in ["debug", "release"]:
print "Unknown mode %s" % mode
return False
if options.arch in ["auto", "native"]:
options.arch = ARCH_GUESS
options.arch = options.arch.split(",")
for arch in options.arch:
if not arch in ['ia32', 'x64', 'arm', 'mipsel']:
print "Unknown architecture %s" % arch
return False
# Special processing of other options, sorted alphabetically.
if options.buildbot:
# Buildbots run presubmit tests as a separate step.
options.no_presubmit = True
options.no_network = True
if options.command_prefix:
print("Specifying --command-prefix disables network distribution, "
"running tests locally.")
options.no_network = True
if options.j == 0:
options.j = multiprocessing.cpu_count()
if options.no_stress:
VARIANT_FLAGS = [[], ["--nocrankshaft"]]
if not options.shell_dir:
if options.shell:
print "Warning: --shell is deprecated, use --shell-dir instead."
options.shell_dir = os.path.dirname(options.shell)
if options.stress_only:
VARIANT_FLAGS = [["--stress-opt", "--always-opt"]]
# Simulators are slow, therefore allow a longer default timeout.
if options.timeout == -1:
if options.arch == "arm" or options.arch == "mipsel":
options.timeout = 2 * TIMEOUT_DEFAULT;
else:
options.timeout = TIMEOUT_DEFAULT;
if options.valgrind:
run_valgrind = os.path.join("tools", "run-valgrind.py")
# This is OK for distributed running, so we don't need to set no_network.
options.command_prefix = ("python -u " + run_valgrind +
options.command_prefix)
return True
def ShardTests(tests, shard_count, shard_run):
if shard_count < 2:
return tests
if shard_run < 1 or shard_run > shard_count:
print "shard-run not a valid number, should be in [1:shard-count]"
print "defaulting back to running all tests"
return tests
count = 0
shard = []
for test in tests:
if count % shard_count == shard_run - 1:
shard.append(test)
count += 1
return shard
def Main():
parser = BuildOptions()
(options, args) = parser.parse_args()
if not ProcessOptions(options):
parser.print_help()
return 1
exit_code = 0
workspace = os.path.abspath(join(os.path.dirname(sys.argv[0]), ".."))
if not options.no_presubmit:
print ">>> running presubmit tests"
code = subprocess.call(
[sys.executable, join(workspace, "tools", "presubmit.py")])
exit_code = code
suite_paths = utils.GetSuitePaths(join(workspace, "test"))
if len(args) == 0:
suite_paths = [ s for s in suite_paths if s in DEFAULT_TESTS ]
else:
args_suites = set()
for arg in args:
suite = arg.split(os.path.sep)[0]
if not suite in args_suites:
args_suites.add(suite)
suite_paths = [ s for s in suite_paths if s in args_suites ]
suites = []
for root in suite_paths:
suite = testsuite.TestSuite.LoadTestSuite(
os.path.join(workspace, "test", root))
if suite:
suites.append(suite)
if options.download_data:
for s in suites:
s.DownloadData()
for mode in options.mode:
for arch in options.arch:
code = Execute(arch, mode, args, options, suites, workspace)
exit_code = exit_code or code
return exit_code
def Execute(arch, mode, args, options, suites, workspace):
print(">>> Running tests for %s.%s" % (arch, mode))
shell_dir = options.shell_dir
if not shell_dir:
if options.buildbot:
shell_dir = os.path.join(workspace, options.outdir, mode)
mode = mode.lower()
else:
shell_dir = os.path.join(workspace, options.outdir,
"%s.%s" % (arch, mode))
shell_dir = os.path.relpath(shell_dir)
# Populate context object.
mode_flags = MODE_FLAGS[mode]
options.timeout *= TIMEOUT_SCALEFACTOR[mode]
ctx = context.Context(arch, mode, shell_dir,
mode_flags, options.verbose,
options.timeout, options.isolates,
options.command_prefix,
options.extra_flags)
# Find available test suites and read test cases from them.
variables = {
"mode": mode,
"arch": arch,
"system": utils.GuessOS(),
"isolates": options.isolates
}
all_tests = []
num_tests = 0
test_id = 0
for s in suites:
s.ReadStatusFile(variables)
s.ReadTestCases(ctx)
all_tests += s.tests
if len(args) > 0:
s.FilterTestCasesByArgs(args)
s.FilterTestCasesByStatus(options.warn_unused)
if options.cat:
verbose.PrintTestSource(s.tests)
continue
variant_flags = s.VariantFlags() or VARIANT_FLAGS
s.tests = [ t.CopyAddingFlags(v) for t in s.tests for v in variant_flags ]
s.tests = ShardTests(s.tests, options.shard_count, options.shard_run)
num_tests += len(s.tests)
for t in s.tests:
t.id = test_id
test_id += 1
if options.cat:
return 0 # We're done here.
if options.report:
verbose.PrintReport(all_tests)
if num_tests == 0:
print "No tests to run."
return 0
# Run the tests, either locally or distributed on the network.
try:
start_time = time.time()
progress_indicator = progress.PROGRESS_INDICATORS[options.progress]()
run_networked = not options.no_network
if not run_networked:
print("Network distribution disabled, running tests locally.")
elif utils.GuessOS() != "linux":
print("Network distribution is only supported on Linux, sorry!")
run_networked = False
peers = []
if run_networked:
peers = network_execution.GetPeers()
if not peers:
print("No connection to distribution server; running tests locally.")
run_networked = False
elif len(peers) == 1:
print("No other peers on the network; running tests locally.")
run_networked = False
elif num_tests <= 100:
print("Less than 100 tests, running them locally.")
run_networked = False
if run_networked:
runner = network_execution.NetworkedRunner(suites, progress_indicator,
ctx, peers, workspace)
else:
runner = execution.Runner(suites, progress_indicator, ctx)
exit_code = runner.Run(options.j)
if runner.terminate:
return exit_code
overall_duration = time.time() - start_time
except KeyboardInterrupt:
return 1
if options.time:
verbose.PrintTestDurations(suites, overall_duration)
return exit_code
if __name__ == "__main__":
sys.exit(Main())