mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-27 13:50:07 +00:00
a771713e42
Each instruction is given an unique id that can be used for ordering purposes. The ids are generated via the IRContext. Major changes: * Instructions now contain a uint32_t for unique id and a cached context pointer * Most constructors have been modified to take a context as input * unfortunately I cannot remove the default and copy constructors, but developers should avoid these * Added accessors to parents of basic block and function * Removed the copy constructors for BasicBlock and Function and replaced them with Clone functions * Reworked BuildModule to return an IRContext owning the built module * Since all instructions require a context, the context now becomes the basic unit for IR * Added a constructor to context to create an owned module internally * Replaced uses of Instruction's copy constructor with Clone whereever I found them * Reworked the linker functionality to perform clones into a different context instead of moves * Updated many tests to be consistent with the above changes * Still need to add new tests to cover added functionality * Added comparison operators to Instruction * Added an internal option to LinkerOptions to verify merged ids are unique * Added a test for the linker to verify merged ids are unique * Updated MergeReturnPass to supply a context * Updated DecorationManager to supply a context for cloned decorations * Reworked several portions of the def use tests in anticipation of next set of changes
85 lines
3.3 KiB
C++
85 lines
3.3 KiB
C++
// Copyright (c) 2016 Google Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef LIBSPIRV_OPT_IR_LOADER_H_
|
|
#define LIBSPIRV_OPT_IR_LOADER_H_
|
|
|
|
#include <memory>
|
|
|
|
#include "basic_block.h"
|
|
#include "instruction.h"
|
|
#include "module.h"
|
|
#include "spirv-tools/libspirv.hpp"
|
|
|
|
namespace spvtools {
|
|
namespace ir {
|
|
|
|
// Loader class for constructing SPIR-V in-memory IR representation. Methods in
|
|
// this class are designed to work with the interface for spvBinaryParse() in
|
|
// libspirv.h so that we can leverage the syntax checks implemented behind it.
|
|
//
|
|
// The user is expected to call SetModuleHeader() to fill in the module's
|
|
// header, and then AddInstruction() for each decoded instruction, and finally
|
|
// EndModule() to finalize the module. The instructions processed in sequence
|
|
// by AddInstruction() should comprise a valid SPIR-V module.
|
|
class IrLoader {
|
|
public:
|
|
// Instantiates a builder to construct the given |module| gradually.
|
|
// All internal messages will be communicated to the outside via the given
|
|
// message |consumer|. This instance only keeps a reference to the |consumer|,
|
|
// so the |consumer| should outlive this instance.
|
|
IrLoader(const MessageConsumer& consumer, Module* m);
|
|
|
|
// Sets the source name of the module.
|
|
void SetSource(const std::string& src) { source_ = src; }
|
|
|
|
Module* module() const { return module_; }
|
|
|
|
// Sets the fields in the module's header to the given parameters.
|
|
void SetModuleHeader(uint32_t magic, uint32_t version, uint32_t generator,
|
|
uint32_t bound, uint32_t reserved) {
|
|
module_->SetHeader({magic, version, generator, bound, reserved});
|
|
}
|
|
// Adds an instruction to the module. Returns true if no error occurs. This
|
|
// method will properly capture and store the data provided in |inst| so that
|
|
// |inst| is no longer needed after returning.
|
|
bool AddInstruction(const spv_parsed_instruction_t* inst);
|
|
// Finalizes the module construction. This must be called after the module
|
|
// header has been set and all instructions have been added. This is
|
|
// forgiving in the case of a missing terminator instruction on a basic block,
|
|
// or a missing OpFunctionEnd. Resolves internal bookkeeping.
|
|
void EndModule();
|
|
|
|
private:
|
|
// Consumer for communicating messages to outside.
|
|
const MessageConsumer& consumer_;
|
|
// The module to be built.
|
|
Module* module_;
|
|
// The source name of the module.
|
|
std::string source_;
|
|
// The last used instruction index.
|
|
uint32_t inst_index_;
|
|
// The current Function under construction.
|
|
std::unique_ptr<Function> function_;
|
|
// The current BasicBlock under construction.
|
|
std::unique_ptr<BasicBlock> block_;
|
|
// Line related debug instructions accumulated thus far.
|
|
std::vector<Instruction> dbg_line_info_;
|
|
};
|
|
|
|
} // namespace ir
|
|
} // namespace spvtools
|
|
|
|
#endif // LIBSPIRV_OPT_IR_LOADER_H_
|