mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-18 19:20:05 +00:00
fe10239f92
This change adds fuzzer passes that sprinkle loads and stores into a module at random, with stores restricted to occur in either dead blocks, or to use pointers for which it is known that the pointee value does not influence the module's overall behaviour. The change also generalises the VariableValueIsArbitrary fact to PointeeValueIsIrrelevant, to allow stores through access chains or object copies of variables whose values are known to be irrelevant. The change includes some other minor refactorings.
188 lines
9.7 KiB
C++
188 lines
9.7 KiB
C++
// Copyright (c) 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "source/fuzz/transformation.h"
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#include <cassert>
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#include "source/fuzz/fuzzer_util.h"
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#include "source/fuzz/transformation_add_constant_boolean.h"
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#include "source/fuzz/transformation_add_constant_composite.h"
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#include "source/fuzz/transformation_add_constant_scalar.h"
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#include "source/fuzz/transformation_add_dead_block.h"
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#include "source/fuzz/transformation_add_dead_break.h"
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#include "source/fuzz/transformation_add_dead_continue.h"
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#include "source/fuzz/transformation_add_function.h"
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#include "source/fuzz/transformation_add_global_undef.h"
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#include "source/fuzz/transformation_add_global_variable.h"
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#include "source/fuzz/transformation_add_local_variable.h"
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#include "source/fuzz/transformation_add_no_contraction_decoration.h"
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#include "source/fuzz/transformation_add_type_array.h"
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#include "source/fuzz/transformation_add_type_boolean.h"
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#include "source/fuzz/transformation_add_type_float.h"
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#include "source/fuzz/transformation_add_type_function.h"
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#include "source/fuzz/transformation_add_type_int.h"
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#include "source/fuzz/transformation_add_type_matrix.h"
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#include "source/fuzz/transformation_add_type_pointer.h"
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#include "source/fuzz/transformation_add_type_struct.h"
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#include "source/fuzz/transformation_add_type_vector.h"
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#include "source/fuzz/transformation_composite_construct.h"
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#include "source/fuzz/transformation_composite_extract.h"
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#include "source/fuzz/transformation_copy_object.h"
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#include "source/fuzz/transformation_load.h"
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#include "source/fuzz/transformation_merge_blocks.h"
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#include "source/fuzz/transformation_move_block_down.h"
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#include "source/fuzz/transformation_outline_function.h"
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#include "source/fuzz/transformation_replace_boolean_constant_with_constant_binary.h"
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#include "source/fuzz/transformation_replace_constant_with_uniform.h"
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#include "source/fuzz/transformation_replace_id_with_synonym.h"
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#include "source/fuzz/transformation_set_function_control.h"
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#include "source/fuzz/transformation_set_loop_control.h"
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#include "source/fuzz/transformation_set_memory_operands_mask.h"
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#include "source/fuzz/transformation_set_selection_control.h"
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#include "source/fuzz/transformation_split_block.h"
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#include "source/fuzz/transformation_store.h"
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#include "source/fuzz/transformation_vector_shuffle.h"
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#include "source/util/make_unique.h"
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namespace spvtools {
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namespace fuzz {
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Transformation::~Transformation() = default;
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std::unique_ptr<Transformation> Transformation::FromMessage(
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const protobufs::Transformation& message) {
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switch (message.transformation_case()) {
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case protobufs::Transformation::TransformationCase::kAddConstantBoolean:
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return MakeUnique<TransformationAddConstantBoolean>(
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message.add_constant_boolean());
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case protobufs::Transformation::TransformationCase::kAddConstantComposite:
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return MakeUnique<TransformationAddConstantComposite>(
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message.add_constant_composite());
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case protobufs::Transformation::TransformationCase::kAddConstantScalar:
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return MakeUnique<TransformationAddConstantScalar>(
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message.add_constant_scalar());
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case protobufs::Transformation::TransformationCase::kAddDeadBlock:
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return MakeUnique<TransformationAddDeadBlock>(message.add_dead_block());
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case protobufs::Transformation::TransformationCase::kAddDeadBreak:
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return MakeUnique<TransformationAddDeadBreak>(message.add_dead_break());
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case protobufs::Transformation::TransformationCase::kAddDeadContinue:
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return MakeUnique<TransformationAddDeadContinue>(
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message.add_dead_continue());
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case protobufs::Transformation::TransformationCase::kAddFunction:
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return MakeUnique<TransformationAddFunction>(message.add_function());
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case protobufs::Transformation::TransformationCase::kAddGlobalUndef:
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return MakeUnique<TransformationAddGlobalUndef>(
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message.add_global_undef());
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case protobufs::Transformation::TransformationCase::kAddGlobalVariable:
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return MakeUnique<TransformationAddGlobalVariable>(
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message.add_global_variable());
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case protobufs::Transformation::TransformationCase::kAddLocalVariable:
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return MakeUnique<TransformationAddLocalVariable>(
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message.add_local_variable());
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case protobufs::Transformation::TransformationCase::
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kAddNoContractionDecoration:
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return MakeUnique<TransformationAddNoContractionDecoration>(
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message.add_no_contraction_decoration());
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case protobufs::Transformation::TransformationCase::kAddTypeArray:
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return MakeUnique<TransformationAddTypeArray>(message.add_type_array());
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case protobufs::Transformation::TransformationCase::kAddTypeBoolean:
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return MakeUnique<TransformationAddTypeBoolean>(
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message.add_type_boolean());
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case protobufs::Transformation::TransformationCase::kAddTypeFloat:
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return MakeUnique<TransformationAddTypeFloat>(message.add_type_float());
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case protobufs::Transformation::TransformationCase::kAddTypeFunction:
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return MakeUnique<TransformationAddTypeFunction>(
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message.add_type_function());
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case protobufs::Transformation::TransformationCase::kAddTypeInt:
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return MakeUnique<TransformationAddTypeInt>(message.add_type_int());
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case protobufs::Transformation::TransformationCase::kAddTypeMatrix:
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return MakeUnique<TransformationAddTypeMatrix>(message.add_type_matrix());
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case protobufs::Transformation::TransformationCase::kAddTypePointer:
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return MakeUnique<TransformationAddTypePointer>(
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message.add_type_pointer());
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case protobufs::Transformation::TransformationCase::kAddTypeStruct:
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return MakeUnique<TransformationAddTypeStruct>(message.add_type_struct());
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case protobufs::Transformation::TransformationCase::kAddTypeVector:
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return MakeUnique<TransformationAddTypeVector>(message.add_type_vector());
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case protobufs::Transformation::TransformationCase::kCompositeConstruct:
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return MakeUnique<TransformationCompositeConstruct>(
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message.composite_construct());
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case protobufs::Transformation::TransformationCase::kCompositeExtract:
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return MakeUnique<TransformationCompositeExtract>(
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message.composite_extract());
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case protobufs::Transformation::TransformationCase::kCopyObject:
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return MakeUnique<TransformationCopyObject>(message.copy_object());
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case protobufs::Transformation::TransformationCase::kLoad:
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return MakeUnique<TransformationLoad>(message.load());
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case protobufs::Transformation::TransformationCase::kMergeBlocks:
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return MakeUnique<TransformationMergeBlocks>(message.merge_blocks());
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case protobufs::Transformation::TransformationCase::kMoveBlockDown:
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return MakeUnique<TransformationMoveBlockDown>(message.move_block_down());
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case protobufs::Transformation::TransformationCase::kOutlineFunction:
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return MakeUnique<TransformationOutlineFunction>(
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message.outline_function());
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case protobufs::Transformation::TransformationCase::
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kReplaceBooleanConstantWithConstantBinary:
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return MakeUnique<TransformationReplaceBooleanConstantWithConstantBinary>(
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message.replace_boolean_constant_with_constant_binary());
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case protobufs::Transformation::TransformationCase::
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kReplaceConstantWithUniform:
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return MakeUnique<TransformationReplaceConstantWithUniform>(
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message.replace_constant_with_uniform());
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case protobufs::Transformation::TransformationCase::kReplaceIdWithSynonym:
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return MakeUnique<TransformationReplaceIdWithSynonym>(
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message.replace_id_with_synonym());
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case protobufs::Transformation::TransformationCase::kSetFunctionControl:
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return MakeUnique<TransformationSetFunctionControl>(
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message.set_function_control());
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case protobufs::Transformation::TransformationCase::kSetLoopControl:
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return MakeUnique<TransformationSetLoopControl>(
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message.set_loop_control());
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case protobufs::Transformation::TransformationCase::kSetMemoryOperandsMask:
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return MakeUnique<TransformationSetMemoryOperandsMask>(
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message.set_memory_operands_mask());
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case protobufs::Transformation::TransformationCase::kSetSelectionControl:
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return MakeUnique<TransformationSetSelectionControl>(
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message.set_selection_control());
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case protobufs::Transformation::TransformationCase::kSplitBlock:
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return MakeUnique<TransformationSplitBlock>(message.split_block());
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case protobufs::Transformation::TransformationCase::kStore:
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return MakeUnique<TransformationStore>(message.store());
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case protobufs::Transformation::TransformationCase::kVectorShuffle:
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return MakeUnique<TransformationVectorShuffle>(message.vector_shuffle());
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case protobufs::Transformation::TRANSFORMATION_NOT_SET:
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assert(false && "An unset transformation was encountered.");
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return nullptr;
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}
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assert(false && "Should be unreachable as all cases must be handled above.");
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return nullptr;
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}
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bool Transformation::CheckIdIsFreshAndNotUsedByThisTransformation(
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uint32_t id, opt::IRContext* context,
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std::set<uint32_t>* ids_used_by_this_transformation) {
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if (!fuzzerutil::IsFreshId(context, id)) {
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return false;
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}
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if (ids_used_by_this_transformation->count(id) != 0) {
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return false;
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}
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ids_used_by_this_transformation->insert(id);
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return true;
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}
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} // namespace fuzz
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} // namespace spvtools
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