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1. give limit to variable count & register count

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2. expand register limit to uint16_t
3. introduce skip copying from stack allocated local variable to interpreter register file

Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
This commit is contained in:
seonghyun kim 2017-02-18 00:52:48 +09:00
commit 76a249913a
68 changed files with 714 additions and 274 deletions
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10
src/parser/Script.cpp
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@ -45,9 +45,11 @@ Value Script::execute(ExecutionState& state, bool isEvalMode, bool needNewEnv, b
Value thisValue(state.context()->globalObject());
ExecutionState newState(state.context(), &ec, &resultValue);
Value* registerFile = (Value*)alloca(m_topCodeBlock->byteCodeBlock()->m_requiredRegisterFileSizeInValueSize * sizeof(Value));
Value* registerFile = (Value*)alloca((m_topCodeBlock->byteCodeBlock()->m_requiredRegisterFileSizeInValueSize + 1) * sizeof(Value));
Value* stackStorage = registerFile + m_topCodeBlock->byteCodeBlock()->m_requiredRegisterFileSizeInValueSize;
stackStorage[0] = thisValue;
clearStack<512>();
ByteCodeInterpreter::interpret(newState, m_topCodeBlock->byteCodeBlock(), 0, registerFile, &thisValue);
ByteCodeInterpreter::interpret(newState, m_topCodeBlock->byteCodeBlock(), 0, registerFile, stackStorage);
return resultValue;
}
@ -109,14 +111,14 @@ Value Script::executeLocal(ExecutionState& state, Value thisValue, bool isEvalMo
ExecutionState newState(state.context(), &ec, &resultValue);
size_t stackStorageSize = m_topCodeBlock->identifierOnStackCount();
Value* stackStorage = ALLOCA(stackStorageSize * sizeof(Value), Value, state);
Value* registerFile = ALLOCA((m_topCodeBlock->byteCodeBlock()->m_requiredRegisterFileSizeInValueSize + stackStorageSize) * sizeof(Value), Value, state);
Value* stackStorage = registerFile + m_topCodeBlock->byteCodeBlock()->m_requiredRegisterFileSizeInValueSize;
for (size_t i = 0; i < stackStorageSize; i++) {
stackStorage[i] = Value();
}
stackStorage[m_topCodeBlock->thisSymbolIndex()] = thisValue;
Value* registerFile = (Value*)alloca(m_topCodeBlock->byteCodeBlock()->m_requiredRegisterFileSizeInValueSize * sizeof(Value));
clearStack<512>();
ByteCodeInterpreter::interpret(newState, m_topCodeBlock->byteCodeBlock(), 0, registerFile, stackStorage);