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opcodes: Switch from std::map to std::array

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Optimization.
This commit is contained in:
MerryMage 2020-05-17 17:00:18 +01:00
parent d0b45f6150
commit c59a127e86
1 changed files with 9 additions and 12 deletions
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21
src/frontend/ir/opcodes.cpp
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@ -4,7 +4,6 @@
*/ */
#include <array> #include <array>
#include <map>
#include <ostream> #include <ostream>
#include <string> #include <string>
#include <vector> #include <vector>
@ -44,34 +43,32 @@ constexpr Type NZCV = Type::NZCVFlags;
constexpr Type Cond = Type::Cond; constexpr Type Cond = Type::Cond;
constexpr Type Table = Type::Table; constexpr Type Table = Type::Table;
static const std::map<Opcode, Meta> opcode_info {{ static const std::array opcode_info {
#define OPCODE(name, type, ...) { Opcode::name, { #name, type, { __VA_ARGS__ } } }, #define OPCODE(name, type, ...) Meta{#name, type, {__VA_ARGS__}},
#define A32OPC(name, type, ...) { Opcode::A32##name, { #name, type, { __VA_ARGS__ } } }, #define A32OPC(name, type, ...) Meta{#name, type, {__VA_ARGS__}},
#define A64OPC(name, type, ...) { Opcode::A64##name, { #name, type, { __VA_ARGS__ } } }, #define A64OPC(name, type, ...) Meta{#name, type, {__VA_ARGS__}},
#include "opcodes.inc" #include "opcodes.inc"
#undef OPCODE #undef OPCODE
#undef A32OPC #undef A32OPC
#undef A64OPC #undef A64OPC
}}; };
} // namespace OpcodeInfo } // namespace OpcodeInfo
Type GetTypeOf(Opcode op) { Type GetTypeOf(Opcode op) {
return OpcodeInfo::opcode_info.at(op).type; return OpcodeInfo::opcode_info.at(static_cast<size_t>(op)).type;
} }
size_t GetNumArgsOf(Opcode op) { size_t GetNumArgsOf(Opcode op) {
return OpcodeInfo::opcode_info.at(op).arg_types.size(); return OpcodeInfo::opcode_info.at(static_cast<size_t>(op)).arg_types.size();
} }
Type GetArgTypeOf(Opcode op, size_t arg_index) { Type GetArgTypeOf(Opcode op, size_t arg_index) {
return OpcodeInfo::opcode_info.at(op).arg_types.at(arg_index); return OpcodeInfo::opcode_info.at(static_cast<size_t>(op)).arg_types.at(arg_index);
} }
std::string GetNameOf(Opcode op) { std::string GetNameOf(Opcode op) {
if (OpcodeInfo::opcode_info.count(op) == 0) return OpcodeInfo::opcode_info.at(static_cast<size_t>(op)).name;
return fmt::format("Unknown Opcode {}", static_cast<Opcode>(op));
return OpcodeInfo::opcode_info.at(op).name;
} }
std::ostream& operator<<(std::ostream& o, Opcode opcode) { std::ostream& operator<<(std::ostream& o, Opcode opcode) {