Source/JavaScriptCore/wasm/generateWasmOpsHeader.py - WebKit - Git at Google

 #!/usr/bin/env python3

 # Copyright (C) 2016-2017 Apple Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 #
 # 1.  Redistributions of source code must retain the above copyright
 #     notice, this list of conditions and the following disclaimer.
 # 2.  Redistributions in binary form must reproduce the above copyright
 #     notice, this list of conditions and the following disclaimer in the
 #     documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 # This tool has a couple of helpful macros to process Wasm files from the wasm.json.

 from generateWasm import *
 import optparse
 import sys

 parser = optparse.OptionParser(usage="usage: %prog <wasm.json> <WasmOps.h>")
 (options, args) = parser.parse_args(sys.argv[0:])
 if len(args) != 3:
     parser.error(parser.usage)

 wasm = Wasm(args[0], args[1])
 types = wasm.types
 opcodes = wasm.opcodes
 wasmOpsHFile = open(args[2], "w")


 def cppType(type):
     if type == "bool":
         return "I32"
     return type.capitalize()


 def cppMacro(wasmOpcode, value, b3, inc, *extraArgs):
     extraArgsStr = ", " + ", ".join(extraArgs) if len(extraArgs) else ""
     return " \\\n    macro(" + wasm.toCpp(wasmOpcode) + ", " + hex(int(value)) + ", " + b3 + ", " + str(inc) + extraArgsStr + ")"

 def typeMacroizer():
     inc = 0
     for ty in wasm.types:
         yield cppMacro(ty, wasm.types[ty]["value"], wasm.types[ty]["b3type"], inc, ty)
         inc += 1


 def typeMacroizerFiltered(filter):
     for t in typeMacroizer():
         if not filter(t):
             yield t

 type_definitions = ["#define FOR_EACH_WASM_TYPE(macro)"]
 type_definitions.extend([t for t in typeMacroizer()])
 type_definitions = "".join(type_definitions)

 type_definitions_except_funcref_externref = ["#define FOR_EACH_WASM_TYPE_EXCEPT_FUNCREF_AND_EXTERNREF(macro)"]
 type_definitions_except_funcref_externref.extend([t for t in typeMacroizerFiltered(lambda x: x == "funcref" or x == "externref")])
 type_definitions_except_funcref_externref = "".join(type_definitions_except_funcref_externref)


 def opcodeMacroizer(filter, opcodeField="value", modifier=None):
     inc = 0
     for op in wasm.opcodeIterator(filter):
         b3op = "Oops"
         if isSimple(op["opcode"]):
             b3op = op["opcode"]["b3op"]
         extraArgs = []
         if modifier:
             extraArgs = modifier(op["opcode"])
         yield cppMacro(op["name"], op["opcode"][opcodeField], b3op, inc, *extraArgs)
         inc += 1


 def opcodeWithTypesMacroizer(filter):
     def modifier(op):
         return [cppType(type) for type in op["parameter"] + op["return"]]
     return opcodeMacroizer(filter, modifier=modifier)

 def memoryLoadMacroizer():
     def modifier(op):
         return [cppType(op["return"][0])]
     return opcodeMacroizer(lambda op: (op["category"] == "memory" and len(op["return"]) == 1), modifier=modifier)


 def memoryStoreMacroizer():
     def modifier(op):
         return [cppType(op["parameter"][1])]
     return opcodeMacroizer(lambda op: (op["category"] == "memory" and len(op["return"]) == 0), modifier=modifier)


 def saturatedTruncMacroizer():
     def modifier(op):
         return [cppType(type) for type in op["parameter"] + op["return"]]
     return opcodeMacroizer(lambda op: (op["category"] == "conversion" and op["value"] == 0xfc), modifier=modifier, opcodeField="extendedOp")


 def atomicMemoryLoadMacroizer():
     def modifier(op):
         return [cppType(op["return"][0])]
     return opcodeMacroizer(lambda op: isAtomicLoad(op), modifier=modifier, opcodeField="extendedOp")


 def atomicMemoryStoreMacroizer():
     def modifier(op):
         return [cppType(op["parameter"][1])]
     return opcodeMacroizer(lambda op: isAtomicStore(op), modifier=modifier, opcodeField="extendedOp")


 def atomicBinaryRMWMacroizer():
     def modifier(op):
         return [cppType(op["parameter"][1])]
     return opcodeMacroizer(lambda op: isAtomicBinaryRMW(op), modifier=modifier, opcodeField="extendedOp")


 defines = ["#define FOR_EACH_WASM_SPECIAL_OP(macro)"]
 defines.extend([op for op in opcodeMacroizer(lambda op: not (isUnary(op) or isBinary(op) or op["category"] == "control" or op["category"] == "memory" or op["value"] == 0xfc or op["category"] == "gc" or isAtomic(op)))])
 defines.append("\n\n#define FOR_EACH_WASM_CONTROL_FLOW_OP(macro)")
 defines.extend([op for op in opcodeMacroizer(lambda op: op["category"] == "control")])
 defines.append("\n\n#define FOR_EACH_WASM_SIMPLE_UNARY_OP(macro)")
 defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isUnary(op) and isSimple(op))])
 defines.append("\n\n#define FOR_EACH_WASM_UNARY_OP(macro) \\\n    FOR_EACH_WASM_SIMPLE_UNARY_OP(macro)")
 defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isUnary(op) and not (isSimple(op)))])
 defines.append("\n\n#define FOR_EACH_WASM_SIMPLE_BINARY_OP(macro)")
 defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isBinary(op) and isSimple(op))])
 defines.append("\n\n#define FOR_EACH_WASM_BINARY_OP(macro) \\\n    FOR_EACH_WASM_SIMPLE_BINARY_OP(macro)")
 defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isBinary(op) and not (isSimple(op)))])
 defines.append("\n\n#define FOR_EACH_WASM_MEMORY_LOAD_OP(macro)")
 defines.extend([op for op in memoryLoadMacroizer()])
 defines.append("\n\n#define FOR_EACH_WASM_MEMORY_STORE_OP(macro)")
 defines.extend([op for op in memoryStoreMacroizer()])
 defines.append("\n\n#define FOR_EACH_WASM_TABLE_OP(macro)")
 defines.extend([op for op in opcodeMacroizer(lambda op: (op["category"] == "exttable"), opcodeField="extendedOp")])
 defines.append("\n\n#define FOR_EACH_WASM_TRUNC_SATURATED_OP(macro)")
 defines.extend([op for op in saturatedTruncMacroizer()])
 defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_LOAD_OP(macro)")
 defines.extend([op for op in atomicMemoryLoadMacroizer()])
 defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_STORE_OP(macro)")
 defines.extend([op for op in atomicMemoryStoreMacroizer()])
 defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_BINARY_RMW_OP(macro)")
 defines.extend([op for op in atomicBinaryRMWMacroizer()])
 defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_OTHER_OP(macro)")
 defines.extend([op for op in opcodeMacroizer(lambda op: isAtomic(op) and (not isAtomicLoad(op) and not isAtomicStore(op) and not isAtomicBinaryRMW(op)), opcodeField="extendedOp")])
 defines.append("\n\n#define FOR_EACH_WASM_GC_OP(macro)")
 defines.extend([op for op in opcodeMacroizer(lambda op: (op["category"] == "gc"), opcodeField="extendedOp")])
 defines.append("\n\n")

 defines = "".join(defines)

 opValueSet = set([op for op in wasm.opcodeIterator(lambda op: True, lambda op: opcodes[op]["value"])])
 maxOpValue = max(opValueSet)


 # Luckily, python does floor division rather than trunc division so this works.
 def ceilDiv(a, b):
     return -(-a // b)


 def bitSet():
     v = ""
     for i in range(ceilDiv(maxOpValue + 1, 8)):
         entry = 0
         for j in range(8):
             if i * 8 + j in opValueSet:
                 entry |= 1 << j
         v += (", " if i else "") + hex(entry)
     return v

 validOps = bitSet()


 def memoryLog2AlignmentGenerator(filter):
     result = []
     for op in wasm.opcodeIterator(filter):
         result.append("    case " + wasm.toCpp(op["name"]) + ": return " + memoryLog2Alignment(op) + ";")
     return "\n".join(result)


 def atomicMemoryLog2AlignmentGenerator(filter):
     result = []
     for op in wasm.opcodeIterator(filter):
         result.append("    case ExtAtomicOpType::" + wasm.toCpp(op["name"]) + ": return " + memoryLog2Alignment(op) + ";")
     return "\n".join(result)


 memoryLog2AlignmentLoads = memoryLog2AlignmentGenerator(lambda op: (op["category"] == "memory" and len(op["return"]) == 1))
 memoryLog2AlignmentStores = memoryLog2AlignmentGenerator(lambda op: (op["category"] == "memory" and len(op["return"]) == 0))
 memoryLog2AlignmentAtomic = atomicMemoryLog2AlignmentGenerator(lambda op: (isAtomic(op)))

 contents = wasm.header + """

 #pragma once

 #if ENABLE(WEBASSEMBLY)

 #include <cstdint>
 #include <wtf/PrintStream.h>

 #if ENABLE(WEBASSEMBLY_B3JIT)
 #include "B3Type.h"
 #endif

 namespace JSC { namespace Wasm {

 static constexpr unsigned expectedVersionNumber = """ + wasm.expectedVersionNumber + """;

 static constexpr unsigned numTypes = """ + str(len(types)) + """;

 """ + type_definitions + "\n" + """
 """ + type_definitions_except_funcref_externref + """
 #define CREATE_ENUM_VALUE(name, id, ...) name = id,
 enum class TypeKind : int8_t {
     FOR_EACH_WASM_TYPE(CREATE_ENUM_VALUE)
 };
 #undef CREATE_ENUM_VALUE

 enum class Nullable : bool {
   No = false,
   Yes = true,
 };

 using TypeIndex = uintptr_t;

 struct Type {
     TypeKind kind;
     Nullable nullable;
     TypeIndex index;

     bool operator==(const Type& other) const
     {
         return other.kind == kind && other.nullable == nullable && other.index == index;
     }

     bool operator!=(const Type& other) const
     {
         return !(other == *this);
     }

     bool isNullable() const
     {
         return static_cast<bool>(nullable);
     }

     // Use Wasm::isFuncref and Wasm::isExternref instead because they check againts all kind of representations of function referenes and external references.

     #define CREATE_PREDICATE(name, ...) bool is ## name() const { return kind == TypeKind::name; }
     FOR_EACH_WASM_TYPE_EXCEPT_FUNCREF_AND_EXTERNREF(CREATE_PREDICATE)
     #undef CREATE_PREDICATE
 };

 namespace Types
 {
 #define CREATE_CONSTANT(name, id, ...) constexpr Type name = Type{TypeKind::name, Nullable::Yes, 0u};
 FOR_EACH_WASM_TYPE(CREATE_CONSTANT)
 #undef CREATE_CONSTANT
 } // namespace Types

 #define CREATE_CASE(name, id, ...) case id: return true;
 template <typename Int>
 inline bool isValidTypeKind(Int i)
 {
     switch (i) {
     default: return false;
     FOR_EACH_WASM_TYPE(CREATE_CASE)
     }
     RELEASE_ASSERT_NOT_REACHED();
     return false;
 }
 #undef CREATE_CASE

 #if ENABLE(WEBASSEMBLY_B3JIT)
 #define CREATE_CASE(name, id, b3type, ...) case TypeKind::name: return b3type;
 inline B3::Type toB3Type(Type type)
 {
     switch (type.kind) {
     FOR_EACH_WASM_TYPE(CREATE_CASE)
     }
     RELEASE_ASSERT_NOT_REACHED();
     return B3::Void;
 }
 #undef CREATE_CASE
 #endif

 #define CREATE_CASE(name, ...) case TypeKind::name: return #name;
 inline const char* makeString(TypeKind kind)
 {
     switch (kind) {
     FOR_EACH_WASM_TYPE(CREATE_CASE)
     }
     RELEASE_ASSERT_NOT_REACHED();
     return nullptr;
 }
 #undef CREATE_CASE

 #define CREATE_CASE(name, id, b3type, inc, ...) case TypeKind::name: return inc;
 inline int linearizeType(TypeKind kind)
 {
     switch (kind) {
     FOR_EACH_WASM_TYPE(CREATE_CASE)
     }
     RELEASE_ASSERT_NOT_REACHED();
     return 0;
 }
 #undef CREATE_CASE

 #define CREATE_CASE(name, id, b3type, inc, ...) case inc: return TypeKind::name;
 inline TypeKind linearizedToType(int i)
 {
     switch (i) {
     FOR_EACH_WASM_TYPE(CREATE_CASE)
     }
     RELEASE_ASSERT_NOT_REACHED();
     return TypeKind::Void;
 }
 #undef CREATE_CASE


 """ + defines + """
 #define FOR_EACH_WASM_OP(macro) \\
     FOR_EACH_WASM_SPECIAL_OP(macro) \\
     FOR_EACH_WASM_CONTROL_FLOW_OP(macro) \\
     FOR_EACH_WASM_UNARY_OP(macro) \\
     FOR_EACH_WASM_BINARY_OP(macro) \\
     FOR_EACH_WASM_MEMORY_LOAD_OP(macro) \\
     FOR_EACH_WASM_MEMORY_STORE_OP(macro) \\
     macro(Ext1,  0xFC, Oops, 0) \\
     macro(GCPrefix,  0xFB, Oops, 0) \\
     macro(ExtAtomic, 0xFE, Oops, 0)

 #define CREATE_ENUM_VALUE(name, id, ...) name = id,

 enum OpType : uint8_t {
     FOR_EACH_WASM_OP(CREATE_ENUM_VALUE)
 };

 template<typename Int>
 inline bool isValidOpType(Int i)
 {
     // Bitset of valid ops.
     static const uint8_t valid[] = { """ + validOps + """ };
     return 0 <= i && i <= """ + str(maxOpValue) + """ && (valid[i / 8] & (1 << (i % 8)));
 }

 enum class BinaryOpType : uint8_t {
     FOR_EACH_WASM_BINARY_OP(CREATE_ENUM_VALUE)
 };

 enum class UnaryOpType : uint8_t {
     FOR_EACH_WASM_UNARY_OP(CREATE_ENUM_VALUE)
 };

 enum class LoadOpType : uint8_t {
     FOR_EACH_WASM_MEMORY_LOAD_OP(CREATE_ENUM_VALUE)
 };

 enum class StoreOpType : uint8_t {
     FOR_EACH_WASM_MEMORY_STORE_OP(CREATE_ENUM_VALUE)
 };

 enum class Ext1OpType : uint8_t {
     FOR_EACH_WASM_TABLE_OP(CREATE_ENUM_VALUE)
     FOR_EACH_WASM_TRUNC_SATURATED_OP(CREATE_ENUM_VALUE)
 };

 enum class GCOpType : uint8_t {
     FOR_EACH_WASM_GC_OP(CREATE_ENUM_VALUE)
 };

 enum class ExtAtomicOpType : uint8_t {
     FOR_EACH_WASM_EXT_ATOMIC_LOAD_OP(CREATE_ENUM_VALUE)
     FOR_EACH_WASM_EXT_ATOMIC_STORE_OP(CREATE_ENUM_VALUE)
     FOR_EACH_WASM_EXT_ATOMIC_BINARY_RMW_OP(CREATE_ENUM_VALUE)
     FOR_EACH_WASM_EXT_ATOMIC_OTHER_OP(CREATE_ENUM_VALUE)
 };

 #undef CREATE_ENUM_VALUE

 inline bool isControlOp(OpType op)
 {
     switch (op) {
 #define CREATE_CASE(name, ...) case OpType::name:
     FOR_EACH_WASM_CONTROL_FLOW_OP(CREATE_CASE)
         return true;
 #undef CREATE_CASE
     default:
         break;
     }
     return false;
 }

 inline bool isSimple(UnaryOpType op)
 {
     switch (op) {
 #define CREATE_CASE(name, ...) case UnaryOpType::name:
     FOR_EACH_WASM_SIMPLE_UNARY_OP(CREATE_CASE)
         return true;
 #undef CREATE_CASE
     default:
         break;
     }
     return false;
 }

 inline bool isSimple(BinaryOpType op)
 {
     switch (op) {
 #define CREATE_CASE(name, ...) case BinaryOpType::name:
     FOR_EACH_WASM_SIMPLE_BINARY_OP(CREATE_CASE)
         return true;
 #undef CREATE_CASE
     default:
         break;
     }
     return false;
 }

 inline uint32_t memoryLog2Alignment(OpType op)
 {
     switch (op) {
 """ + memoryLog2AlignmentLoads + """
 """ + memoryLog2AlignmentStores + """
     default:
         break;
     }
     RELEASE_ASSERT_NOT_REACHED();
     return 0;
 }

 inline uint32_t memoryLog2Alignment(ExtAtomicOpType op)
 {
     switch (op) {
 """ + memoryLog2AlignmentAtomic + """
     default:
         break;
     }
     RELEASE_ASSERT_NOT_REACHED();
     return 0;
 }

 #define CREATE_CASE(name, ...) case name: return #name;
 inline const char* makeString(OpType op)
 {
     switch (op) {
     FOR_EACH_WASM_OP(CREATE_CASE)
     }
     RELEASE_ASSERT_NOT_REACHED();
     return nullptr;
 }
 #undef CREATE_CASE

 } } // namespace JSC::Wasm

 namespace WTF {

 inline void printInternal(PrintStream& out, JSC::Wasm::TypeKind kind)
 {
     out.print(JSC::Wasm::makeString(kind));
 }

 inline void printInternal(PrintStream& out, JSC::Wasm::OpType op)
 {
     out.print(JSC::Wasm::makeString(op));
 }

 } // namespace WTF

 #endif // ENABLE(WEBASSEMBLY)

 """

 wasmOpsHFile.write(contents)
 wasmOpsHFile.close()
	#!/usr/bin/env python3

	# Copyright (C) 2016-2017 Apple Inc. All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions
	# are met:
	#
	# 1. Redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer.
	# 2. Redistributions in binary form must reproduce the above copyright
	# notice, this list of conditions and the following disclaimer in the
	# documentation and/or other materials provided with the distribution.
	#
	# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
	# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	# DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
	# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	# This tool has a couple of helpful macros to process Wasm files from the wasm.json.

	from generateWasm import *
	import optparse
	import sys

	parser = optparse.OptionParser(usage="usage: %prog <wasm.json> <WasmOps.h>")
	(options, args) = parser.parse_args(sys.argv[0:])
	if len(args) != 3:
	parser.error(parser.usage)

	wasm = Wasm(args[0], args[1])
	types = wasm.types
	opcodes = wasm.opcodes
	wasmOpsHFile = open(args[2], "w")


	def cppType(type):
	if type == "bool":
	return "I32"
	return type.capitalize()


	def cppMacro(wasmOpcode, value, b3, inc, *extraArgs):
	extraArgsStr = ", " + ", ".join(extraArgs) if len(extraArgs) else ""
	return " \\\n macro(" + wasm.toCpp(wasmOpcode) + ", " + hex(int(value)) + ", " + b3 + ", " + str(inc) + extraArgsStr + ")"

	def typeMacroizer():
	inc = 0
	for ty in wasm.types:
	yield cppMacro(ty, wasm.types[ty]["value"], wasm.types[ty]["b3type"], inc, ty)
	inc += 1


	def typeMacroizerFiltered(filter):
	for t in typeMacroizer():
	if not filter(t):
	yield t

	type_definitions = ["#define FOR_EACH_WASM_TYPE(macro)"]
	type_definitions.extend([t for t in typeMacroizer()])
	type_definitions = "".join(type_definitions)

	type_definitions_except_funcref_externref = ["#define FOR_EACH_WASM_TYPE_EXCEPT_FUNCREF_AND_EXTERNREF(macro)"]
	type_definitions_except_funcref_externref.extend([t for t in typeMacroizerFiltered(lambda x: x == "funcref" or x == "externref")])
	type_definitions_except_funcref_externref = "".join(type_definitions_except_funcref_externref)


	def opcodeMacroizer(filter, opcodeField="value", modifier=None):
	inc = 0
	for op in wasm.opcodeIterator(filter):
	b3op = "Oops"
	if isSimple(op["opcode"]):
	b3op = op["opcode"]["b3op"]
	extraArgs = []
	if modifier:
	extraArgs = modifier(op["opcode"])
	yield cppMacro(op["name"], op["opcode"][opcodeField], b3op, inc, *extraArgs)
	inc += 1


	def opcodeWithTypesMacroizer(filter):
	def modifier(op):
	return [cppType(type) for type in op["parameter"] + op["return"]]
	return opcodeMacroizer(filter, modifier=modifier)

	def memoryLoadMacroizer():
	def modifier(op):
	return [cppType(op["return"][0])]
	return opcodeMacroizer(lambda op: (op["category"] == "memory" and len(op["return"]) == 1), modifier=modifier)


	def memoryStoreMacroizer():
	def modifier(op):
	return [cppType(op["parameter"][1])]
	return opcodeMacroizer(lambda op: (op["category"] == "memory" and len(op["return"]) == 0), modifier=modifier)


	def saturatedTruncMacroizer():
	def modifier(op):
	return [cppType(type) for type in op["parameter"] + op["return"]]
	return opcodeMacroizer(lambda op: (op["category"] == "conversion" and op["value"] == 0xfc), modifier=modifier, opcodeField="extendedOp")


	def atomicMemoryLoadMacroizer():
	def modifier(op):
	return [cppType(op["return"][0])]
	return opcodeMacroizer(lambda op: isAtomicLoad(op), modifier=modifier, opcodeField="extendedOp")


	def atomicMemoryStoreMacroizer():
	def modifier(op):
	return [cppType(op["parameter"][1])]
	return opcodeMacroizer(lambda op: isAtomicStore(op), modifier=modifier, opcodeField="extendedOp")


	def atomicBinaryRMWMacroizer():
	def modifier(op):
	return [cppType(op["parameter"][1])]
	return opcodeMacroizer(lambda op: isAtomicBinaryRMW(op), modifier=modifier, opcodeField="extendedOp")


	defines = ["#define FOR_EACH_WASM_SPECIAL_OP(macro)"]
	defines.extend([op for op in opcodeMacroizer(lambda op: not (isUnary(op) or isBinary(op) or op["category"] == "control" or op["category"] == "memory" or op["value"] == 0xfc or op["category"] == "gc" or isAtomic(op)))])
	defines.append("\n\n#define FOR_EACH_WASM_CONTROL_FLOW_OP(macro)")
	defines.extend([op for op in opcodeMacroizer(lambda op: op["category"] == "control")])
	defines.append("\n\n#define FOR_EACH_WASM_SIMPLE_UNARY_OP(macro)")
	defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isUnary(op) and isSimple(op))])
	defines.append("\n\n#define FOR_EACH_WASM_UNARY_OP(macro) \\\n FOR_EACH_WASM_SIMPLE_UNARY_OP(macro)")
	defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isUnary(op) and not (isSimple(op)))])
	defines.append("\n\n#define FOR_EACH_WASM_SIMPLE_BINARY_OP(macro)")
	defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isBinary(op) and isSimple(op))])
	defines.append("\n\n#define FOR_EACH_WASM_BINARY_OP(macro) \\\n FOR_EACH_WASM_SIMPLE_BINARY_OP(macro)")
	defines.extend([op for op in opcodeWithTypesMacroizer(lambda op: isBinary(op) and not (isSimple(op)))])
	defines.append("\n\n#define FOR_EACH_WASM_MEMORY_LOAD_OP(macro)")
	defines.extend([op for op in memoryLoadMacroizer()])
	defines.append("\n\n#define FOR_EACH_WASM_MEMORY_STORE_OP(macro)")
	defines.extend([op for op in memoryStoreMacroizer()])
	defines.append("\n\n#define FOR_EACH_WASM_TABLE_OP(macro)")
	defines.extend([op for op in opcodeMacroizer(lambda op: (op["category"] == "exttable"), opcodeField="extendedOp")])
	defines.append("\n\n#define FOR_EACH_WASM_TRUNC_SATURATED_OP(macro)")
	defines.extend([op for op in saturatedTruncMacroizer()])
	defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_LOAD_OP(macro)")
	defines.extend([op for op in atomicMemoryLoadMacroizer()])
	defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_STORE_OP(macro)")
	defines.extend([op for op in atomicMemoryStoreMacroizer()])
	defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_BINARY_RMW_OP(macro)")
	defines.extend([op for op in atomicBinaryRMWMacroizer()])
	defines.append("\n\n#define FOR_EACH_WASM_EXT_ATOMIC_OTHER_OP(macro)")
	defines.extend([op for op in opcodeMacroizer(lambda op: isAtomic(op) and (not isAtomicLoad(op) and not isAtomicStore(op) and not isAtomicBinaryRMW(op)), opcodeField="extendedOp")])
	defines.append("\n\n#define FOR_EACH_WASM_GC_OP(macro)")
	defines.extend([op for op in opcodeMacroizer(lambda op: (op["category"] == "gc"), opcodeField="extendedOp")])
	defines.append("\n\n")

	defines = "".join(defines)

	opValueSet = set([op for op in wasm.opcodeIterator(lambda op: True, lambda op: opcodes[op]["value"])])
	maxOpValue = max(opValueSet)


	# Luckily, python does floor division rather than trunc division so this works.
	def ceilDiv(a, b):
	return -(-a // b)


	def bitSet():
	v = ""
	for i in range(ceilDiv(maxOpValue + 1, 8)):
	entry = 0
	for j in range(8):
	if i * 8 + j in opValueSet:
	entry \|= 1 << j
	v += (", " if i else "") + hex(entry)
	return v

	validOps = bitSet()


	def memoryLog2AlignmentGenerator(filter):
	result = []
	for op in wasm.opcodeIterator(filter):
	result.append(" case " + wasm.toCpp(op["name"]) + ": return " + memoryLog2Alignment(op) + ";")
	return "\n".join(result)


	def atomicMemoryLog2AlignmentGenerator(filter):
	result = []
	for op in wasm.opcodeIterator(filter):
	result.append(" case ExtAtomicOpType::" + wasm.toCpp(op["name"]) + ": return " + memoryLog2Alignment(op) + ";")
	return "\n".join(result)


	memoryLog2AlignmentLoads = memoryLog2AlignmentGenerator(lambda op: (op["category"] == "memory" and len(op["return"]) == 1))
	memoryLog2AlignmentStores = memoryLog2AlignmentGenerator(lambda op: (op["category"] == "memory" and len(op["return"]) == 0))
	memoryLog2AlignmentAtomic = atomicMemoryLog2AlignmentGenerator(lambda op: (isAtomic(op)))

	contents = wasm.header + """

	#pragma once

	#if ENABLE(WEBASSEMBLY)

	#include <cstdint>
	#include <wtf/PrintStream.h>

	#if ENABLE(WEBASSEMBLY_B3JIT)
	#include "B3Type.h"
	#endif

	namespace JSC { namespace Wasm {

	static constexpr unsigned expectedVersionNumber = """ + wasm.expectedVersionNumber + """;

	static constexpr unsigned numTypes = """ + str(len(types)) + """;

	""" + type_definitions + "\n" + """
	""" + type_definitions_except_funcref_externref + """
	#define CREATE_ENUM_VALUE(name, id, ...) name = id,
	enum class TypeKind : int8_t {
	FOR_EACH_WASM_TYPE(CREATE_ENUM_VALUE)
	};
	#undef CREATE_ENUM_VALUE

	enum class Nullable : bool {
	No = false,
	Yes = true,
	};

	using TypeIndex = uintptr_t;

	struct Type {
	TypeKind kind;
	Nullable nullable;
	TypeIndex index;

	bool operator==(const Type& other) const
	{
	return other.kind == kind && other.nullable == nullable && other.index == index;
	}

	bool operator!=(const Type& other) const
	{
	return !(other == *this);
	}

	bool isNullable() const
	{
	return static_cast<bool>(nullable);
	}

	// Use Wasm::isFuncref and Wasm::isExternref instead because they check againts all kind of representations of function referenes and external references.

	#define CREATE_PREDICATE(name, ...) bool is ## name() const { return kind == TypeKind::name; }
	FOR_EACH_WASM_TYPE_EXCEPT_FUNCREF_AND_EXTERNREF(CREATE_PREDICATE)
	#undef CREATE_PREDICATE
	};

	namespace Types
	{
	#define CREATE_CONSTANT(name, id, ...) constexpr Type name = Type{TypeKind::name, Nullable::Yes, 0u};
	FOR_EACH_WASM_TYPE(CREATE_CONSTANT)
	#undef CREATE_CONSTANT
	} // namespace Types

	#define CREATE_CASE(name, id, ...) case id: return true;
	template <typename Int>
	inline bool isValidTypeKind(Int i)
	{
	switch (i) {
	default: return false;
	FOR_EACH_WASM_TYPE(CREATE_CASE)
	}
	RELEASE_ASSERT_NOT_REACHED();
	return false;
	}
	#undef CREATE_CASE

	#if ENABLE(WEBASSEMBLY_B3JIT)
	#define CREATE_CASE(name, id, b3type, ...) case TypeKind::name: return b3type;
	inline B3::Type toB3Type(Type type)
	{
	switch (type.kind) {
	FOR_EACH_WASM_TYPE(CREATE_CASE)
	}
	RELEASE_ASSERT_NOT_REACHED();
	return B3::Void;
	}
	#undef CREATE_CASE
	#endif

	#define CREATE_CASE(name, ...) case TypeKind::name: return #name;
	inline const char* makeString(TypeKind kind)
	{
	switch (kind) {
	FOR_EACH_WASM_TYPE(CREATE_CASE)
	}
	RELEASE_ASSERT_NOT_REACHED();
	return nullptr;
	}
	#undef CREATE_CASE

	#define CREATE_CASE(name, id, b3type, inc, ...) case TypeKind::name: return inc;
	inline int linearizeType(TypeKind kind)
	{
	switch (kind) {
	FOR_EACH_WASM_TYPE(CREATE_CASE)
	}
	RELEASE_ASSERT_NOT_REACHED();
	return 0;
	}
	#undef CREATE_CASE

	#define CREATE_CASE(name, id, b3type, inc, ...) case inc: return TypeKind::name;
	inline TypeKind linearizedToType(int i)
	{
	switch (i) {
	FOR_EACH_WASM_TYPE(CREATE_CASE)
	}
	RELEASE_ASSERT_NOT_REACHED();
	return TypeKind::Void;
	}
	#undef CREATE_CASE


	""" + defines + """
	#define FOR_EACH_WASM_OP(macro) \\
	FOR_EACH_WASM_SPECIAL_OP(macro) \\
	FOR_EACH_WASM_CONTROL_FLOW_OP(macro) \\
	FOR_EACH_WASM_UNARY_OP(macro) \\
	FOR_EACH_WASM_BINARY_OP(macro) \\
	FOR_EACH_WASM_MEMORY_LOAD_OP(macro) \\
	FOR_EACH_WASM_MEMORY_STORE_OP(macro) \\
	macro(Ext1, 0xFC, Oops, 0) \\
	macro(GCPrefix, 0xFB, Oops, 0) \\
	macro(ExtAtomic, 0xFE, Oops, 0)

	#define CREATE_ENUM_VALUE(name, id, ...) name = id,

	enum OpType : uint8_t {
	FOR_EACH_WASM_OP(CREATE_ENUM_VALUE)
	};

	template<typename Int>
	inline bool isValidOpType(Int i)
	{
	// Bitset of valid ops.
	static const uint8_t valid[] = { """ + validOps + """ };
	return 0 <= i && i <= """ + str(maxOpValue) + """ && (valid[i / 8] & (1 << (i % 8)));
	}

	enum class BinaryOpType : uint8_t {
	FOR_EACH_WASM_BINARY_OP(CREATE_ENUM_VALUE)
	};

	enum class UnaryOpType : uint8_t {
	FOR_EACH_WASM_UNARY_OP(CREATE_ENUM_VALUE)
	};

	enum class LoadOpType : uint8_t {
	FOR_EACH_WASM_MEMORY_LOAD_OP(CREATE_ENUM_VALUE)
	};

	enum class StoreOpType : uint8_t {
	FOR_EACH_WASM_MEMORY_STORE_OP(CREATE_ENUM_VALUE)
	};

	enum class Ext1OpType : uint8_t {
	FOR_EACH_WASM_TABLE_OP(CREATE_ENUM_VALUE)
	FOR_EACH_WASM_TRUNC_SATURATED_OP(CREATE_ENUM_VALUE)
	};

	enum class GCOpType : uint8_t {
	FOR_EACH_WASM_GC_OP(CREATE_ENUM_VALUE)
	};

	enum class ExtAtomicOpType : uint8_t {
	FOR_EACH_WASM_EXT_ATOMIC_LOAD_OP(CREATE_ENUM_VALUE)
	FOR_EACH_WASM_EXT_ATOMIC_STORE_OP(CREATE_ENUM_VALUE)
	FOR_EACH_WASM_EXT_ATOMIC_BINARY_RMW_OP(CREATE_ENUM_VALUE)
	FOR_EACH_WASM_EXT_ATOMIC_OTHER_OP(CREATE_ENUM_VALUE)
	};

	#undef CREATE_ENUM_VALUE

	inline bool isControlOp(OpType op)
	{
	switch (op) {
	#define CREATE_CASE(name, ...) case OpType::name:
	FOR_EACH_WASM_CONTROL_FLOW_OP(CREATE_CASE)
	return true;
	#undef CREATE_CASE
	default:
	break;
	}
	return false;
	}

	inline bool isSimple(UnaryOpType op)
	{
	switch (op) {
	#define CREATE_CASE(name, ...) case UnaryOpType::name:
	FOR_EACH_WASM_SIMPLE_UNARY_OP(CREATE_CASE)
	return true;
	#undef CREATE_CASE
	default:
	break;
	}
	return false;
	}

	inline bool isSimple(BinaryOpType op)
	{
	switch (op) {
	#define CREATE_CASE(name, ...) case BinaryOpType::name:
	FOR_EACH_WASM_SIMPLE_BINARY_OP(CREATE_CASE)
	return true;
	#undef CREATE_CASE
	default:
	break;
	}
	return false;
	}

	inline uint32_t memoryLog2Alignment(OpType op)
	{
	switch (op) {
	""" + memoryLog2AlignmentLoads + """
	""" + memoryLog2AlignmentStores + """
	default:
	break;
	}
	RELEASE_ASSERT_NOT_REACHED();
	return 0;
	}

	inline uint32_t memoryLog2Alignment(ExtAtomicOpType op)
	{
	switch (op) {
	""" + memoryLog2AlignmentAtomic + """
	default:
	break;
	}
	RELEASE_ASSERT_NOT_REACHED();
	return 0;
	}

	#define CREATE_CASE(name, ...) case name: return #name;
	inline const char* makeString(OpType op)
	{
	switch (op) {
	FOR_EACH_WASM_OP(CREATE_CASE)
	}
	RELEASE_ASSERT_NOT_REACHED();
	return nullptr;
	}
	#undef CREATE_CASE

	} } // namespace JSC::Wasm

	namespace WTF {

	inline void printInternal(PrintStream& out, JSC::Wasm::TypeKind kind)
	{
	out.print(JSC::Wasm::makeString(kind));
	}

	inline void printInternal(PrintStream& out, JSC::Wasm::OpType op)
	{
	out.print(JSC::Wasm::makeString(op));
	}

	} // namespace WTF

	#endif // ENABLE(WEBASSEMBLY)

	"""

	wasmOpsHFile.write(contents)
	wasmOpsHFile.close()