mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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204 lines
8.1 KiB
C++
204 lines
8.1 KiB
C++
// Copyright (c) 2015-2016 The Khronos Group Inc.
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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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#ifndef LIBSPIRV_VALIDATE_H_
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#define LIBSPIRV_VALIDATE_H_
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#include <functional>
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#include <utility>
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#include <vector>
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#include "instruction.h"
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#include "message.h"
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#include "spirv-tools/libspirv.h"
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#include "table.h"
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namespace libspirv {
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class ValidationState_t;
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class BasicBlock;
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/// A function that returns a vector of BasicBlocks given a BasicBlock. Used to
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/// get the successor and predecessor nodes of a CFG block
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using get_blocks_func =
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std::function<const std::vector<BasicBlock*>*(const BasicBlock*)>;
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/// @brief Performs the Control Flow Graph checks
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///
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/// @param[in] _ the validation state of the module
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///
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/// @return SPV_SUCCESS if no errors are found. SPV_ERROR_INVALID_CFG otherwise
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spv_result_t PerformCfgChecks(ValidationState_t& _);
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/// @brief Updates the use vectors of all instructions that can be referenced
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///
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/// This function will update the vector which define where an instruction was
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/// referenced in the binary.
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///
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/// @param[in] _ the validation state of the module
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///
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/// @return SPV_SUCCESS if no errors are found.
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spv_result_t UpdateIdUse(ValidationState_t& _);
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/// @brief This function checks all ID definitions dominate their use in the
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/// CFG.
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///
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/// This function will iterate over all ID definitions that are defined in the
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/// functions of a module and make sure that the definitions appear in a
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/// block that dominates their use.
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///
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/// @param[in] _ the validation state of the module
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///
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/// @return SPV_SUCCESS if no errors are found. SPV_ERROR_INVALID_ID otherwise
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spv_result_t CheckIdDefinitionDominateUse(const ValidationState_t& _);
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/// @brief Updates the immediate dominator for each of the block edges
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///
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/// Updates the immediate dominator of the blocks for each of the edges
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/// provided by the @p dom_edges parameter
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///
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/// @param[in,out] dom_edges The edges of the dominator tree
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/// @param[in] set_func This function will be called to updated the Immediate
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/// dominator
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void UpdateImmediateDominators(
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const std::vector<std::pair<BasicBlock*, BasicBlock*>>& dom_edges,
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std::function<void(BasicBlock*, BasicBlock*)> set_func);
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/// @brief Prints all of the dominators of a BasicBlock
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///
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/// @param[in] block The dominators of this block will be printed
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void printDominatorList(BasicBlock& block);
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/// Performs logical layout validation as described in section 2.4 of the SPIR-V
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/// spec.
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spv_result_t ModuleLayoutPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Performs Control Flow Graph validation of a module
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spv_result_t CfgPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Performs Id and SSA validation of a module
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spv_result_t IdPass(ValidationState_t& _, const spv_parsed_instruction_t* inst);
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/// Performs validation of the Data Rules subsection of 2.16.1 Universal
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/// Validation Rules.
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/// TODO(ehsann): add more comments here as more validation code is added.
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spv_result_t DataRulesPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Performs instruction validation.
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spv_result_t InstructionPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Performs decoration validation.
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spv_result_t ValidateDecorations(ValidationState_t& _);
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/// Validates that type declarations are unique, unless multiple declarations
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/// of the same data type are allowed by the specification.
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/// (see section 2.8 Types and Variables)
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spv_result_t TypeUniquePass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Validates correctness of arithmetic instructions.
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spv_result_t ArithmeticsPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Validates correctness of composite instructions.
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spv_result_t CompositesPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Validates correctness of conversion instructions.
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spv_result_t ConversionPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Validates correctness of derivative instructions.
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spv_result_t DerivativesPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Validates correctness of logical instructions.
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spv_result_t LogicalsPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Validates correctness of bitwise instructions.
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spv_result_t BitwisePass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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/// Validates correctness of image instructions.
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spv_result_t ImagePass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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// Validates that capability declarations use operands allowed in the current
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// context.
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spv_result_t CapabilityPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst);
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} // namespace libspirv
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/// @brief Validate the ID usage of the instruction stream
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///
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/// @param[in] pInsts stream of instructions
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/// @param[in] instCount number of instructions
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/// @param[in] opcodeTable table of specified Opcodes
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/// @param[in] operandTable table of specified operands
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/// @param[in] usedefs use-def info from module parsing
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/// @param[in,out] position current position in the stream
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///
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/// @return result code
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spv_result_t spvValidateInstructionIDs(const spv_instruction_t* pInsts,
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const uint64_t instCount,
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const spv_opcode_table opcodeTable,
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const spv_operand_table operandTable,
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const spv_ext_inst_table extInstTable,
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const libspirv::ValidationState_t& state,
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spv_position position);
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/// @brief Validate the ID's within a SPIR-V binary
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///
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/// @param[in] pInstructions array of instructions
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/// @param[in] count number of elements in instruction array
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/// @param[in] bound the binary header
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/// @param[in] opcodeTable table of specified Opcodes
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/// @param[in] operandTable table of specified operands
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/// @param[in,out] position current word in the binary
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/// @param[in] consumer message consumer callback
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///
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/// @return result code
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spv_result_t spvValidateIDs(const spv_instruction_t* pInstructions,
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const uint64_t count, const uint32_t bound,
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const spv_opcode_table opcodeTable,
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const spv_operand_table operandTable,
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const spv_ext_inst_table extInstTable,
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spv_position position,
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const spvtools::MessageConsumer& consumer);
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namespace spvtools {
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// Performs validation for the SPIRV-V module binary.
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// The main difference between this API and spvValidateBinary is that the
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// "Validation State" is not destroyed upon function return; it lives on and is
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// pointed to by the vstate unique_ptr.
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spv_result_t ValidateBinaryAndKeepValidationState(
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const spv_const_context context, spv_const_validator_options options,
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const uint32_t* words, const size_t num_words, spv_diagnostic* pDiagnostic,
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std::unique_ptr<libspirv::ValidationState_t>* vstate);
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// Performs validation for a single instruction and updates given validation
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// state.
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spv_result_t ValidateInstructionAndUpdateValidationState(
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libspirv::ValidationState_t* vstate, const spv_parsed_instruction_t* inst);
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} // namespace spvtools
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#endif // LIBSPIRV_VALIDATE_H_
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