68 lines
2 KiB
C++
68 lines
2 KiB
C++
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// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <array>
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#include <string_view>
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#include "shader_recompiler/exception.h"
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#include "shader_recompiler/frontend/ir/opcode.h"
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namespace Shader::IR {
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namespace {
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struct OpcodeMeta {
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std::string_view name;
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Type type;
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std::array<Type, 4> arg_types;
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};
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using enum Type;
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constexpr std::array META_TABLE{
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#define OPCODE(name_token, type_token, ...) \
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OpcodeMeta{ \
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.name{#name_token}, \
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.type{type_token}, \
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.arg_types{__VA_ARGS__}, \
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},
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#include "opcode.inc"
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#undef OPCODE
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};
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void ValidateOpcode(Opcode op) {
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const size_t raw{static_cast<size_t>(op)};
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if (raw >= META_TABLE.size()) {
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throw InvalidArgument("Invalid opcode with raw value {}", raw);
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}
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}
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} // Anonymous namespace
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Type TypeOf(Opcode op) {
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ValidateOpcode(op);
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return META_TABLE[static_cast<size_t>(op)].type;
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}
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size_t NumArgsOf(Opcode op) {
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ValidateOpcode(op);
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const auto& arg_types{META_TABLE[static_cast<size_t>(op)].arg_types};
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const auto distance{std::distance(arg_types.begin(), std::ranges::find(arg_types, Type::Void))};
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return static_cast<size_t>(distance);
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}
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Type ArgTypeOf(Opcode op, size_t arg_index) {
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ValidateOpcode(op);
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const auto& arg_types{META_TABLE[static_cast<size_t>(op)].arg_types};
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if (arg_index >= arg_types.size() || arg_types[arg_index] == Type::Void) {
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throw InvalidArgument("Out of bounds argument");
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}
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return arg_types[arg_index];
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}
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std::string_view NameOf(Opcode op) {
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ValidateOpcode(op);
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return META_TABLE[static_cast<size_t>(op)].name;
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}
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} // namespace Shader::IR
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