106 строки
4.9 KiB
C
106 строки
4.9 KiB
C
// Copyright (c) 2015-2016 The Khronos Group Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and/or associated documentation files (the
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// "Materials"), to deal in the Materials without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Materials, and to
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// permit persons to whom the Materials are furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Materials.
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//
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// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
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// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
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// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
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// https://www.khronos.org/registry/
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//
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// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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#ifndef LIBSPIRV_OPCODE_H_
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#define LIBSPIRV_OPCODE_H_
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#include "instruction.h"
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#include "spirv-tools/libspirv.h"
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#include "table.h"
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// Returns the name of a registered SPIR-V generator as a null-terminated
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// string. If the generator is not known, then returns the string "Unknown".
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// The generator parameter should be most significant 16-bits of the generator
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// word in the SPIR-V module header.
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//
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// See the registry at https://www.khronos.org/registry/spir-v/api/spir-v.xml.
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const char* spvGeneratorStr(uint32_t generator);
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// Combines word_count and opcode enumerant in single word.
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uint32_t spvOpcodeMake(uint16_t word_count, SpvOp opcode);
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// Splits word into into two constituent parts: word_count and opcode.
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void spvOpcodeSplit(const uint32_t word, uint16_t* word_count, SpvOp* opcode);
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// Finds the named opcode in the given opcode table. On success, returns
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// SPV_SUCCESS and writes a handle of the table entry into *entry.
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spv_result_t spvOpcodeTableNameLookup(const spv_opcode_table table,
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const char* name, spv_opcode_desc* entry);
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// Finds the opcode by enumerant in the given opcode table. On success, returns
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// SPV_SUCCESS and writes a handle of the table entry into *entry.
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spv_result_t spvOpcodeTableValueLookup(const spv_opcode_table table,
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const SpvOp opcode,
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spv_opcode_desc* entry);
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// Determines if the opcode has capability requirements. Returns zero if false,
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// non-zero otherwise. This function does not check if the given entry is valid.
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int32_t spvOpcodeRequiresCapabilities(spv_opcode_desc opcode);
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// Copies an instruction's word and fixes the endianness to host native. The
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// source instruction's stream/opcode/endianness is in the words/opcode/endian
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// parameter. The word_count parameter specifies the number of words to copy.
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// Writes copied instruction into *inst.
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void spvInstructionCopy(const uint32_t* words, const SpvOp opcode,
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const uint16_t word_count,
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const spv_endianness_t endian, spv_instruction_t* inst);
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// Gets the name of an instruction, without the "Op" prefix.
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const char* spvOpcodeString(const SpvOp opcode);
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// Determine if the given opcode is a scalar type. Returns zero if false,
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// non-zero otherwise.
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int32_t spvOpcodeIsScalarType(const SpvOp opcode);
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// Determines if the given opcode is a constant. Returns zero if false, non-zero
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// otherwise.
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int32_t spvOpcodeIsConstant(const SpvOp opcode);
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// Determines if the given opcode is a composite type. Returns zero if false,
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// non-zero otherwise.
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int32_t spvOpcodeIsComposite(const SpvOp opcode);
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// Deep equal comparison of type declaration instructions. Returns zero if
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// false, non-zero otherwise.
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int32_t spvOpcodeAreTypesEqual(const spv_instruction_t* type_inst0,
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const spv_instruction_t* type_inst1);
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// Determines if the given opcode results in a pointer. Returns zero if false,
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// non-zero otherwise.
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int32_t spvOpcodeIsPointer(const SpvOp opcode);
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// Determines if an instruction is in a basic block. The first_inst parameter
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// specifies the first instruction in the stream, while the inst parameter
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// specifies the current instruction. Returns zero if false, non-zero otherwise.
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int32_t spvInstructionIsInBasicBlock(const spv_instruction_t* first_inst,
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const spv_instruction_t* inst);
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// Determines if the given opcode generates a type. Returns zero if false,
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// non-zero otherwise.
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int32_t spvOpcodeGeneratesType(SpvOp opcode);
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#endif // LIBSPIRV_OPCODE_H_
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