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spirv-fuzz: Add WGSL compatibility flag to context (#4193)

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The new flags allows transformations and fuzzer passes to be enabled
and applied in a WGSL-compatible fashion.
This commit is contained in:
Vasyl Teliman 2021-03-21 11:10:15 +02:00 committed by GitHub
parent 6382cbb497
commit edb8399b0f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
13 changed files with 118 additions and 47 deletions
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7
source/fuzz/fuzzer.cpp
View File

@ -228,8 +228,11 @@ Fuzzer::Fuzzer(std::unique_ptr<opt::IRContext> ir_context,
MaybeAddFinalPass<FuzzerPassAdjustMemoryOperandsMasks>(&final_passes_);
MaybeAddFinalPass<FuzzerPassAdjustSelectionControls>(&final_passes_);
MaybeAddFinalPass<FuzzerPassAddNoContractionDecorations>(&final_passes_);
MaybeAddFinalPass<FuzzerPassInterchangeSignednessOfIntegerOperands>(
&final_passes_);
if (!fuzzer_context_->IsWgslCompatible()) {
// Signedness is not as interchangeable in WGSL as in SPIR-V.
MaybeAddFinalPass<FuzzerPassInterchangeSignednessOfIntegerOperands>(
&final_passes_);
}
MaybeAddFinalPass<FuzzerPassInterchangeZeroLikeConstants>(&final_passes_);
MaybeAddFinalPass<FuzzerPassPermutePhiOperands>(&final_passes_);
MaybeAddFinalPass<FuzzerPassSwapCommutableOperands>(&final_passes_);

3
source/fuzz/fuzzer_context.cpp
View File

@ -184,9 +184,10 @@ const std::function<bool(uint32_t, RandomGenerator*)>
} // namespace
FuzzerContext::FuzzerContext(std::unique_ptr<RandomGenerator> random_generator,
uint32_t min_fresh_id)
uint32_t min_fresh_id, bool is_wgsl_compatible)
: random_generator_(std::move(random_generator)),
next_fresh_id_(min_fresh_id),
is_wgsl_compatible_(is_wgsl_compatible),
max_equivalence_class_size_for_data_synonym_fact_closure_(
kDefaultMaxEquivalenceClassSizeForDataSynonymFactClosure),
max_loop_control_partial_count_(kDefaultMaxLoopControlPartialCount),

16
source/fuzz/fuzzer_context.h
View File

@ -34,7 +34,7 @@ class FuzzerContext {
// Constructs a fuzzer context with a given random generator and the minimum
// value that can be used for fresh ids.
FuzzerContext(std::unique_ptr<RandomGenerator> random_generator,
uint32_t min_fresh_id);
uint32_t min_fresh_id, bool is_wgsl_compatible);
~FuzzerContext();
@ -66,7 +66,7 @@ class FuzzerContext {
}
// Randomly shuffles a |sequence| between |lo| and |hi| indices inclusively.
// |lo| and |hi| must be valid indices to the |sequence|
// |lo| and |hi| must be valid indices to the |sequence|.
template <typename T>
void Shuffle(std::vector<T>* sequence, size_t lo, size_t hi) const {
auto& array = *sequence;
@ -91,7 +91,7 @@ class FuzzerContext {
}
}
// Ramdomly shuffles a |sequence|
// Randomly shuffles a |sequence|.
template <typename T>
void Shuffle(std::vector<T>* sequence) const {
if (!sequence->empty()) {
@ -104,7 +104,7 @@ class FuzzerContext {
uint32_t GetFreshId();
// Returns a vector of |count| fresh ids.
std::vector<uint32_t> GetFreshIds(const uint32_t count);
std::vector<uint32_t> GetFreshIds(uint32_t count);
// A suggested limit on the id bound for the module being fuzzed. This is
// useful for deciding when to stop the overall fuzzing process. Furthermore,
@ -120,6 +120,11 @@ class FuzzerContext {
// Returns the minimum fresh id that can be used given the |ir_context|.
static uint32_t GetMinFreshId(opt::IRContext* ir_context);
// Returns true if all transformations should be compatible with WGSL.
bool IsWgslCompatible() const {
return is_wgsl_compatible_;
}
// Probabilities associated with applying various transformations.
// Keep them in alphabetical order.
uint32_t GetChanceOfAcceptingRepeatedPassRecommendation() const {
@ -456,6 +461,9 @@ class FuzzerContext {
// The next fresh id to be issued.
uint32_t next_fresh_id_;
// True if all transformations should be compatible with WGSL spec.
bool is_wgsl_compatible_;
// Probabilities associated with applying various transformations.
// Keep them in alphabetical order.
uint32_t chance_of_accepting_repeated_pass_recommendation_;

3
source/fuzz/fuzzer_pass_interchange_signedness_of_integer_operands.cpp
View File

@ -35,6 +35,9 @@ FuzzerPassInterchangeSignednessOfIntegerOperands::
~FuzzerPassInterchangeSignednessOfIntegerOperands() = default;
void FuzzerPassInterchangeSignednessOfIntegerOperands::Apply() {
assert(!GetFuzzerContext()->IsWgslCompatible() &&
"Cannot interchange signedness in WGSL");
// Make vector keeping track of all the uses we want to replace.
// This is a vector of pairs, where the first element is an id use descriptor
// identifying the use of a constant id and the second is the id that should

3
test/fuzz/fuzzer_pass_add_opphi_synonyms_test.cpp
View File

@ -128,7 +128,8 @@ TEST(FuzzerPassAddOpPhiSynonymsTest, HelperFunctions) {
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassAddOpPhiSynonyms fuzzer_pass(context.get(), &transformation_context,

6
test/fuzz/fuzzer_pass_construct_composites_test.cpp
View File

@ -77,7 +77,8 @@ TEST(FuzzerPassConstructCompositesTest, IsomorphicStructs) {
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
for (uint32_t i = 0; i < 10; i++) {
const auto context =
@ -157,7 +158,8 @@ TEST(FuzzerPassConstructCompositesTest, IsomorphicArrays) {
const auto env = SPV_ENV_UNIVERSAL_1_3;
const auto consumer = nullptr;
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
for (uint32_t i = 0; i < 10; i++) {
const auto context =

57
test/fuzz/fuzzer_pass_donate_modules_test.cpp
View File

@ -204,7 +204,8 @@ TEST(FuzzerPassDonateModulesTest, BasicDonation) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -284,7 +285,8 @@ TEST(FuzzerPassDonateModulesTest, DonationWithUniforms) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -414,7 +416,8 @@ TEST(FuzzerPassDonateModulesTest, DonationWithInputAndOutputVariables) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -508,7 +511,8 @@ TEST(FuzzerPassDonateModulesTest, DonateFunctionTypeWithDifferentPointers) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -577,7 +581,8 @@ TEST(FuzzerPassDonateModulesTest, DonateOpConstantNull) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -704,7 +709,8 @@ TEST(FuzzerPassDonateModulesTest, DonateCodeThatUsesImages) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -799,7 +805,8 @@ TEST(FuzzerPassDonateModulesTest, DonateCodeThatUsesSampler) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -930,7 +937,8 @@ TEST(FuzzerPassDonateModulesTest, DonateCodeThatUsesImageStructField) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1065,7 +1073,8 @@ TEST(FuzzerPassDonateModulesTest, DonateCodeThatUsesImageFunctionParameter) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1146,7 +1155,8 @@ TEST(FuzzerPassDonateModulesTest, DonateShaderWithImageStorageClass) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1232,7 +1242,8 @@ TEST(FuzzerPassDonateModulesTest, DonateComputeShaderWithRuntimeArray) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1335,7 +1346,8 @@ TEST(FuzzerPassDonateModulesTest, DonateComputeShaderWithRuntimeArrayLivesafe) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1406,7 +1418,8 @@ TEST(FuzzerPassDonateModulesTest, DonateComputeShaderWithWorkgroupVariables) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1515,7 +1528,8 @@ TEST(FuzzerPassDonateModulesTest, DonateComputeShaderWithAtomics) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1698,7 +1712,8 @@ TEST(FuzzerPassDonateModulesTest, Miscellaneous1) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1769,7 +1784,8 @@ TEST(FuzzerPassDonateModulesTest, OpSpecConstantInstructions) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1925,7 +1941,8 @@ TEST(FuzzerPassDonateModulesTest, DonationSupportsOpTypeRuntimeArray) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -1997,7 +2014,8 @@ TEST(FuzzerPassDonateModulesTest, HandlesCapabilities) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),
@ -2229,7 +2247,8 @@ TEST(FuzzerPassDonateModulesTest, HandlesOpPhisInMergeBlock) {
TransformationContext transformation_context(
MakeUnique<FactManager>(recipient_context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassDonateModules fuzzer_pass(recipient_context.get(),

12
test/fuzz/fuzzer_pass_outline_functions_test.cpp
View File

@ -124,7 +124,8 @@ TEST(FuzzerPassOutlineFunctionsTest, EntryIsAlreadySuitable) {
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassOutlineFunctions fuzzer_pass(context.get(), &transformation_context,
@ -166,7 +167,8 @@ TEST(FuzzerPassOutlineFunctionsTest, EntryHasOpVariable) {
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassOutlineFunctions fuzzer_pass(context.get(), &transformation_context,
@ -289,7 +291,8 @@ TEST(FuzzerPassOutlineFunctionsTest, EntryBlockIsHeader) {
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassOutlineFunctions fuzzer_pass(context.get(), &transformation_context,
@ -455,7 +458,8 @@ TEST(FuzzerPassOutlineFunctionsTest, ExitBlock) {
kConsoleMessageConsumer));
TransformationContext transformation_context(
MakeUnique<FactManager>(context.get()), validator_options);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformation_sequence;
FuzzerPassOutlineFunctions fuzzer_pass(context.get(), &transformation_context,

3
test/fuzz/fuzzer_pass_test.cpp
View File

@ -87,7 +87,8 @@ TEST(FuzzerPassTest, ForEachInstructionWithInstructionDescriptor) {
ASSERT_TRUE(dominator_analysis->IsReachable(5));
ASSERT_FALSE(dominator_analysis->IsReachable(8));
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
protobufs::TransformationSequence transformations;
FuzzerPassMock fuzzer_pass_mock(context.get(), &transformation_context,
&fuzzer_context, &transformations);

2
test/fuzz/fuzzer_replayer_test.cpp
View File

@ -1656,7 +1656,7 @@ void RunFuzzerAndReplayer(const std::string& shader,
auto fuzzer_context = MakeUnique<FuzzerContext>(
MakeUnique<PseudoRandomGenerator>(seed),
FuzzerContext::GetMinFreshId(ir_context.get()));
FuzzerContext::GetMinFreshId(ir_context.get()), false);
auto transformation_context = MakeUnique<TransformationContext>(
MakeUnique<FactManager>(ir_context.get()), validator_options);

6
test/fuzz/fuzzer_shrinker_test.cpp
View File

@ -1056,9 +1056,9 @@ void RunFuzzerAndShrinker(const std::string& shader,
ASSERT_TRUE(fuzzerutil::BuildIRContext(
env, kConsoleMessageConsumer, binary_in, validator_options, &ir_context));
auto fuzzer_context =
MakeUnique<FuzzerContext>(MakeUnique<PseudoRandomGenerator>(seed),
FuzzerContext::GetMinFreshId(ir_context.get()));
auto fuzzer_context = MakeUnique<FuzzerContext>(
MakeUnique<PseudoRandomGenerator>(seed),
FuzzerContext::GetMinFreshId(ir_context.get()), false);
auto transformation_context = MakeUnique<TransformationContext>(
MakeUnique<FactManager>(ir_context.get()), validator_options);

7
test/fuzz/shrinker_test.cpp
View File

@ -163,7 +163,8 @@ TEST(ShrinkerTest, ReduceAddedFunctions) {
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
donor_ir_context.get(), validator_options, kConsoleMessageConsumer));
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
TransformationContext transformation_context(
MakeUnique<FactManager>(variant_ir_context.get()), validator_options);
@ -340,7 +341,8 @@ TEST(ShrinkerTest, HitStepLimitWhenReducingAddedFunctions) {
ASSERT_TRUE(fuzzerutil::IsValidAndWellFormed(
donor_ir_context.get(), validator_options, kConsoleMessageConsumer));
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100);
FuzzerContext fuzzer_context(MakeUnique<PseudoRandomGenerator>(0), 100,
false);
TransformationContext transformation_context(
MakeUnique<FactManager>(variant_ir_context.get()), validator_options);
@ -363,7 +365,6 @@ TEST(ShrinkerTest, HitStepLimitWhenReducingAddedFunctions) {
if (inst->opcode() == SpvOpCopyObject) {
copy_object_count++;
}
});
return copy_object_count >= 8;
};

40
tools/fuzz/fuzz.cpp
View File

@ -39,6 +39,8 @@
namespace {
enum class FuzzingTarget { kSpirv, kWgsl };
// Check that the std::system function can actually be used.
bool CheckExecuteCommand() {
int res = std::system(nullptr);
@ -141,6 +143,12 @@ Options (in lexicographical order):
that was used previously.
- simple: each time a fuzzer pass is requested, one is provided
at random from the set of enabled passes.
--fuzzing-target=
This option will adjust probabilities of applying certain
transformations s.t. the module always remains valid according
to the semantics of some fuzzing target. Available targets:
- spir-v - module is valid according to the SPIR-V spec.
- wgsl - module is valid according to the WGSL spec.
--replay
File from which to read a sequence of transformations to replay
(instead of fuzzing)
@ -205,7 +213,7 @@ FuzzStatus ParseFlags(
std::string* shrink_transformations_file,
std::string* shrink_temp_file_prefix,
spvtools::fuzz::RepeatedPassStrategy* repeated_pass_strategy,
spvtools::FuzzerOptions* fuzzer_options,
FuzzingTarget* fuzzing_target, spvtools::FuzzerOptions* fuzzer_options,
spvtools::ValidatorOptions* validator_options) {
uint32_t positional_arg_index = 0;
bool only_positional_arguments_remain = false;
@ -266,6 +274,20 @@ FuzzStatus ParseFlags(
spvtools::Error(FuzzDiagnostic, nullptr, {}, ss.str().c_str());
return {FuzzActions::STOP, 1};
}
} else if (0 == strncmp(cur_arg, "--fuzzing-target=",
sizeof("--fuzzing-target=") - 1)) {
std::string target = spvtools::utils::SplitFlagArgs(cur_arg).second;
if (target == "spir-v") {
*fuzzing_target = FuzzingTarget::kSpirv;
} else if (target == "wgsl") {
*fuzzing_target = FuzzingTarget::kWgsl;
} else {
std::stringstream ss;
ss << "Unknown fuzzing target '" << target << "'" << std::endl;
ss << "Valid options are 'spir-v' and 'wgsl'.";
spvtools::Error(FuzzDiagnostic, nullptr, {}, ss.str().c_str());
return {FuzzActions::STOP, 1};
}
} else if (0 == strncmp(cur_arg, "--replay-range=",
sizeof("--replay-range=") - 1)) {
const auto split_flag = spvtools::utils::SplitFlagArgs(cur_arg);
@ -550,7 +572,7 @@ bool Fuzz(const spv_target_env& target_env,
const spvtools::fuzz::protobufs::FactSequence& initial_facts,
const std::string& donors,
spvtools::fuzz::RepeatedPassStrategy repeated_pass_strategy,
std::vector<uint32_t>* binary_out,
FuzzingTarget fuzzing_target, std::vector<uint32_t>* binary_out,
spvtools::fuzz::protobufs::TransformationSequence*
transformations_applied) {
auto message_consumer = spvtools::utils::CLIMessageConsumer;
@ -586,12 +608,16 @@ bool Fuzz(const spv_target_env& target_env,
return false;
}
assert((fuzzing_target == FuzzingTarget::kWgsl ||
fuzzing_target == FuzzingTarget::kSpirv) &&
"Not all fuzzing targets are handled");
auto fuzzer_context = spvtools::MakeUnique<spvtools::fuzz::FuzzerContext>(
spvtools::MakeUnique<spvtools::fuzz::PseudoRandomGenerator>(
fuzzer_options->has_random_seed
? fuzzer_options->random_seed
: static_cast<uint32_t>(std::random_device()())),
spvtools::fuzz::FuzzerContext::GetMinFreshId(ir_context.get()));
spvtools::fuzz::FuzzerContext::GetMinFreshId(ir_context.get()),
fuzzing_target == FuzzingTarget::kWgsl);
auto transformation_context =
spvtools::MakeUnique<spvtools::fuzz::TransformationContext>(
@ -675,6 +701,7 @@ int main(int argc, const char** argv) {
std::string shrink_transformations_file;
std::string shrink_temp_file_prefix = "temp_";
spvtools::fuzz::RepeatedPassStrategy repeated_pass_strategy;
auto fuzzing_target = FuzzingTarget::kSpirv;
spvtools::FuzzerOptions fuzzer_options;
spvtools::ValidatorOptions validator_options;
@ -683,7 +710,8 @@ int main(int argc, const char** argv) {
ParseFlags(argc, argv, &in_binary_file, &out_binary_file, &donors_file,
&replay_transformations_file, &interestingness_test,
&shrink_transformations_file, &shrink_temp_file_prefix,
&repeated_pass_strategy, &fuzzer_options, &validator_options);
&repeated_pass_strategy, &fuzzing_target, &fuzzer_options,
&validator_options);
if (status.action == FuzzActions::STOP) {
return status.code;
@ -729,8 +757,8 @@ int main(int argc, const char** argv) {
break;
case FuzzActions::FUZZ:
if (!Fuzz(target_env, fuzzer_options, validator_options, binary_in,
initial_facts, donors_file, repeated_pass_strategy, &binary_out,
&transformations_applied)) {
initial_facts, donors_file, repeated_pass_strategy,
fuzzing_target, &binary_out, &transformations_applied)) {
return 1;
}
break;