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Add options to fuzzer to improve performance 

Since the APIs being tested take in strings, using
onlyascii.
Restricting the size of test cases, so that we get more
diverse smaller test cases, instead of generating 1MB of 0s.

BUG=tint:1095,tint:1096

Change-Id: I0590bf0146c3395278ead362e2add328f669aea7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63180
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
This commit is contained in:
Ryan Harrison 2021-09-02 19:59:35 +00:00 committed by Tint LUCI CQ
parent 3e70f3e2ac
commit 5093b9fe4d
1 changed files with 30 additions and 11 deletions
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41
fuzzers/BUILD.gn
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@ -32,19 +32,24 @@ if (build_with_chromium) {
outputs = [ fuzzer_corpus_wgsl_dir ] outputs = [ fuzzer_corpus_wgsl_dir ]
} }
tint_ast_fuzzer_libfuzzer_options = [ tint_fuzzer_common_libfuzzer_options = [
"cross_over=0", "only_ascii=1",
"max_len=1000000", "max_len=10000",
"mutate_depth=1",
"tint_enable_all_mutations=false",
"tint_mutation_batch_size=5",
] ]
tint_regex_fuzzer_libfuzzer_options = [ tint_ast_fuzzer_common_libfuzzer_options =
"cross_over=0", tint_fuzzer_common_libfuzzer_options + [
"max_len=100000", "cross_over=0",
"mutate_depth=1", "mutate_depth=1",
] "tint_enable_all_mutations=false",
"tint_mutation_batch_size=5",
]
tint_regex_fuzzer_common_libfuzzer_options =
tint_fuzzer_common_libfuzzer_options + [
"cross_over=0",
"mutate_depth=1",
]
# fuzzer_test doesn't have configs members, so need to define them in an empty # fuzzer_test doesn't have configs members, so need to define them in an empty
# source_set. # source_set.
@ -81,6 +86,7 @@ if (build_with_chromium) {
sources = [ "tint_wgsl_reader_fuzzer.cc" ] sources = [ "tint_wgsl_reader_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -91,6 +97,7 @@ if (build_with_chromium) {
sources = [ "tint_ast_clone_fuzzer.cc" ] sources = [ "tint_ast_clone_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -115,6 +122,7 @@ if (build_with_chromium) {
sources = [ "tint_wgsl_reader_wgsl_writer_fuzzer.cc" ] sources = [ "tint_wgsl_reader_wgsl_writer_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -125,6 +133,7 @@ if (build_with_chromium) {
sources = [ "tint_all_transforms_fuzzer.cc" ] sources = [ "tint_all_transforms_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -141,6 +150,7 @@ if (build_with_chromium) {
sources = [ "tint_binding_remapper_fuzzer.cc" ] sources = [ "tint_binding_remapper_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -149,6 +159,7 @@ if (build_with_chromium) {
sources = [ "tint_first_index_offset_fuzzer.cc" ] sources = [ "tint_first_index_offset_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -157,6 +168,7 @@ if (build_with_chromium) {
sources = [ "tint_inspector_fuzzer.cc" ] sources = [ "tint_inspector_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -173,6 +185,7 @@ if (build_with_chromium) {
sources = [ "tint_renamer_fuzzer.cc" ] sources = [ "tint_renamer_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -181,6 +194,7 @@ if (build_with_chromium) {
sources = [ "tint_robustness_fuzzer.cc" ] sources = [ "tint_robustness_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -189,6 +203,7 @@ if (build_with_chromium) {
sources = [ "tint_single_entry_point_fuzzer.cc" ] sources = [ "tint_single_entry_point_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -197,6 +212,7 @@ if (build_with_chromium) {
sources = [ "tint_vertex_pulling_fuzzer.cc" ] sources = [ "tint_vertex_pulling_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -205,6 +221,7 @@ if (build_with_chromium) {
sources = [ "tint_wgsl_reader_spv_writer_fuzzer.cc" ] sources = [ "tint_wgsl_reader_spv_writer_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -231,6 +248,7 @@ if (build_with_chromium) {
sources = [ "tint_wgsl_reader_hlsl_writer_fuzzer.cc" ] sources = [ "tint_wgsl_reader_hlsl_writer_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }
@ -257,6 +275,7 @@ if (build_with_chromium) {
sources = [ "tint_wgsl_reader_msl_writer_fuzzer.cc" ] sources = [ "tint_wgsl_reader_msl_writer_fuzzer.cc" ]
deps = [ ":tint_fuzzer_common_with_init" ] deps = [ ":tint_fuzzer_common_with_init" ]
dict = "dictionary.txt" dict = "dictionary.txt"
libfuzzer_options = tint_fuzzer_common_libfuzzer_options
seed_corpus = fuzzer_corpus_wgsl_dir seed_corpus = fuzzer_corpus_wgsl_dir
seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ] seed_corpus_deps = [ ":tint_generate_wgsl_corpus" ]
} }