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# Copyright 2018 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import random
# List of configuration experiments for correctness fuzzing.
# List of <probability>, <1st config name>, <2nd config name>, <2nd d8>.
# Probabilities must add up to 100.
FOOZZIE_EXPERIMENTS = [
[10, 'ignition', 'jitless', 'd8'],
[10, 'ignition', 'slow_path', 'd8'],
[5, 'ignition', 'slow_path_opt', 'd8'],
[10, 'ignition', 'ignition_turbo', 'd8'],
[10, 'ignition_no_ic', 'ignition_turbo', 'd8'],
[10, 'ignition', 'ignition_turbo_no_ic', 'd8'],
[10, 'ignition', 'ignition_turbo_opt', 'd8'],
[10, 'ignition_no_ic', 'ignition_turbo_opt', 'd8'],
[5, 'ignition_turbo_opt', 'ignition_turbo_opt', 'clang_x86/d8'],
[5, 'ignition_turbo', 'ignition_turbo', 'clang_x86/d8'],
[5, 'ignition', 'ignition', 'clang_x86/d8'],
[5, 'ignition', 'ignition', 'clang_x64_v8_arm64/d8'],
[5, 'ignition', 'ignition', 'clang_x86_v8_arm/d8'],
]
class Config(object):
def __init__(self, name, rng=None):
self.name = name
self.rng = rng or random.Random()
def choose_foozzie_flags(self):
"""Randomly chooses a configuration from FOOZZIE_EXPERIMENTS.
Returns: List of flags to pass to v8_foozzie.py fuzz harness.
"""
acc = 0
threshold = self.rng.random() * 100
for prob, first_config, second_config, second_d8 in FOOZZIE_EXPERIMENTS:
acc += prob
if acc > threshold:
return [
'--first-config=' + first_config,
'--second-config=' + second_config,
'--second-d8=' + second_d8,
]
assert False
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