source/fuzz/id_use_descriptor.h

   1 // Copyright (c) 2019 Google LLC
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 #ifndef SOURCE_FUZZ_ID_USE_DESCRIPTOR_H_
  16 #define SOURCE_FUZZ_ID_USE_DESCRIPTOR_H_
  17
  18 #include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
  19 #include "source/opt/ir_context.h"
  20
  21 namespace spvtools {
  22 namespace fuzz {
  23
  24 // Looks for an instruction in |context| that contains a use
  25 // identified by |id_use_descriptor|.
  26 // Returns |nullptr| if no such instruction can be found.
  27 opt::Instruction* FindInstructionContainingUse(
  28     const protobufs::IdUseDescriptor& id_use_descriptor,
  29     opt::IRContext* context);
  30
  31 // Creates an IdUseDescriptor protobuf message from the given components.
  32 // See the protobuf definition for details of what these components mean.
  33 protobufs::IdUseDescriptor MakeIdUseDescriptor(
  34     uint32_t id_of_interest,
  35     const protobufs::InstructionDescriptor& enclosing_instruction,
  36     uint32_t in_operand_index);
  37
  38 // Given an id use, represented by the instruction |inst| that uses the id, and
  39 // the input operand index |in_operand_index| associated with the usage, returns
  40 // an IdUseDescriptor that represents the use.
  41 protobufs::IdUseDescriptor MakeIdUseDescriptorFromUse(
  42     opt::IRContext* context, opt::Instruction* inst, uint32_t in_operand_index);
  43
  44 }  // namespace fuzz
  45 }  // namespace spvtools
  46
  47 #endif  // SOURCE_FUZZ_ID_USE_DESCRIPTOR_H_