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Enable direct threading for clang compiler

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* In our environment, clang version 6+ supports the direct threading in interpreter
This commit is contained in:
HyukWoo Park 2019-12-06 14:56:47 +09:00 • committed by Boram Bae
commit a9ca8c58fd
5 changed files with 28 additions and 18 deletions
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28
src/interpreter/ByteCodeInterpreter.cpp
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@ -81,7 +81,7 @@ private:
Value ByteCodeInterpreter::interpret(ExecutionState* state, ByteCodeBlock* byteCodeBlock, size_t programCounter, Value* registerFile)
{
#if defined(COMPILER_GCC)
#if defined(COMPILER_GCC) || defined(COMPILER_CLANG)
if (UNLIKELY(byteCodeBlock == nullptr)) {
goto FillOpcodeTableLbl;
}
@ -95,8 +95,7 @@ Value ByteCodeInterpreter::interpret(ExecutionState* state, ByteCodeBlock* byteC
char* codeBuffer = byteCodeBlock->m_code.data();
programCounter = (size_t)(codeBuffer + programCounter);
#if defined(COMPILER_GCC)
#if defined(COMPILER_GCC) || defined(COMPILER_CLANG)
#define DEFINE_OPCODE(codeName) codeName##OpcodeLbl
#define DEFINE_DEFAULT
#define NEXT_INSTRUCTION() \
@ -1262,10 +1261,13 @@ Value ByteCodeInterpreter::interpret(ExecutionState* state, ByteCodeBlock* byteC
if (UNLIKELY(!callee.isPointerValue())) {
ErrorObject::throwBuiltinError(*state, ErrorObject::TypeError, errorMessage_NOT_Callable);
}
ValueVector spreadArgs;
spreadFunctionArguments(*state, &registerFile[code->m_argumentsStartIndex], code->m_argumentCount, spreadArgs);
// Return F.[[Call]](V, argumentsList).
registerFile[code->m_resultIndex] = callee.asPointerValue()->call(*state, receiver, spreadArgs.size(), spreadArgs.data());
{
ValueVector spreadArgs;
spreadFunctionArguments(*state, &registerFile[code->m_argumentsStartIndex], code->m_argumentCount, spreadArgs);
// Return F.[[Call]](V, argumentsList).
registerFile[code->m_resultIndex] = callee.asPointerValue()->call(*state, receiver, spreadArgs.size(), spreadArgs.data());
}
ADD_PROGRAM_COUNTER(CallFunctionWithSpreadElement);
NEXT_INSTRUCTION();
@ -1276,9 +1278,13 @@ Value ByteCodeInterpreter::interpret(ExecutionState* state, ByteCodeBlock* byteC
{
NewOperationWithSpreadElement* code = (NewOperationWithSpreadElement*)programCounter;
const Value& callee = registerFile[code->m_calleeIndex];
ValueVector spreadArgs;
spreadFunctionArguments(*state, &registerFile[code->m_argumentsStartIndex], code->m_argumentCount, spreadArgs);
registerFile[code->m_resultIndex] = Object::construct(*state, registerFile[code->m_calleeIndex], spreadArgs.size(), spreadArgs.data());
{
ValueVector spreadArgs;
spreadFunctionArguments(*state, &registerFile[code->m_argumentsStartIndex], code->m_argumentCount, spreadArgs);
registerFile[code->m_resultIndex] = Object::construct(*state, registerFile[code->m_calleeIndex], spreadArgs.size(), spreadArgs.data());
}
ADD_PROGRAM_COUNTER(NewOperationWithSpreadElement);
NEXT_INSTRUCTION();
}
@ -1389,7 +1395,7 @@ Value ByteCodeInterpreter::interpret(ExecutionState* state, ByteCodeBlock* byteC
ASSERT_NOT_REACHED();
#if defined(COMPILER_GCC)
#if defined(COMPILER_GCC) || defined(COMPILER_CLANG)
FillOpcodeTableLbl:
#define REGISTER_TABLE(opcode, pushCount, popCount) g_opcodeTable.m_table[opcode##Opcode] = &&opcode##OpcodeLbl;
FOR_EACH_BYTECODE_OP(REGISTER_TABLE);