mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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0a07cd1c9a
If the fuzzer's fact manager knows that ids A and B are synonymous, it can replace a use of A with a use of B, so long as various conditions hold (e.g. the definition of B must dominate the use of A, and it is not legal to replace a use of an OpConstant in a struct's access chain with a synonym that is not an OpConstant). This change adds a fuzzer pass to sprinke such synonym replacements through the module.
91 lines
4.2 KiB
C++
91 lines
4.2 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/util/make_unique.h"
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#include "transformation_add_constant_boolean.h"
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#include "transformation_add_constant_scalar.h"
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#include "transformation_add_dead_break.h"
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#include "transformation_add_dead_continue.h"
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#include "transformation_add_type_boolean.h"
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#include "transformation_add_type_float.h"
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#include "transformation_add_type_int.h"
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#include "transformation_add_type_pointer.h"
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#include "transformation_copy_object.h"
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#include "transformation_move_block_down.h"
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#include "transformation_replace_boolean_constant_with_constant_binary.h"
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#include "transformation_replace_constant_with_uniform.h"
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#include "transformation_replace_id_with_synonym.h"
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#include "transformation_split_block.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::kAddConstantScalar:
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return MakeUnique<TransformationAddConstantScalar>(
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message.add_constant_scalar());
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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::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::kAddTypeInt:
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return MakeUnique<TransformationAddTypeInt>(message.add_type_int());
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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::kCopyObject:
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return MakeUnique<TransformationCopyObject>(message.copy_object());
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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::
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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::kSplitBlock:
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return MakeUnique<TransformationSplitBlock>(message.split_block());
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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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} // namespace fuzz
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} // namespace spvtools
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