diff options
Diffstat (limited to 'scripts/fuzz_opt.py')
| -rwxr-xr-x | scripts/fuzz_opt.py | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/scripts/fuzz_opt.py b/scripts/fuzz_opt.py index b3310cad0..7efb2043a 100755 --- a/scripts/fuzz_opt.py +++ b/scripts/fuzz_opt.py @@ -15,6 +15,7 @@ BINARYEN_CORES=1 BINARYEN_PASS_DEBUG=1 afl-fuzz -i afl-testcases/ -o afl-finding script covers different options being passed) ''' +import contextlib import os import difflib import math @@ -87,6 +88,17 @@ def randomize_pass_debug(): print('randomized pass debug:', os.environ.get('BINARYEN_PASS_DEBUG', '')) +@contextlib.contextmanager +def no_pass_debug(): + old_env = os.environ.copy() + if os.environ.get('BINARYEN_PASS_DEBUG'): + del os.environ['BINARYEN_PASS_DEBUG'] + try: + yield + finally: + os.environ.update(old_env) + + def randomize_feature_opts(): global FEATURE_OPTS FEATURE_OPTS = CONSTANT_FEATURE_OPTS[:] @@ -380,7 +392,11 @@ class CompareVMs(TestCaseHandler): compile_cmd += ['-Os'] else: compile_cmd += ['-Oz'] - run(compile_cmd) + # avoid pass-debug on the emcc invocation itself (which runs + # binaryen to optimize the wasm), as the wasm here can be very + # large and it isn't what we are focused on testing here + with no_pass_debug(): + run(compile_cmd) return run_vm(['d8', 'a.out.js']) def can_run(self): |