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LibWasm: Move some Values and Vector<Value>s instead of copying them

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Ali Mohammad Pur 2021-08-12 00:59:00 +04:30 • committed by Andreas Kling
parent fa2ae02564
commit 8b6397446e
2 changed files with 5 additions and 7 deletions
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6
Userland/Libraries/LibWasm/AbstractMachine/BytecodeInterpreter.cpp
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@ -126,7 +126,7 @@ void BytecodeInterpreter::call_address(Configuration& configuration, FunctionAdd
for (auto& entry : span) { for (auto& entry : span) {
auto* ptr = entry.get_pointer<Value>(); auto* ptr = entry.get_pointer<Value>();
TRAP_IF_NOT(ptr != nullptr); TRAP_IF_NOT(ptr != nullptr);
args.unchecked_append(*ptr); args.unchecked_append(move(*ptr));
} }
configuration.stack().entries().remove(configuration.stack().size() - span.size(), span.size()); configuration.stack().entries().remove(configuration.stack().size() - span.size(), span.size());
@ -173,7 +173,7 @@ void BytecodeInterpreter::binary_numeric_operation(Configuration& configuration)
result = call_result; result = call_result;
} }
dbgln_if(WASM_TRACE_DEBUG, "{} {} {} = {}", lhs.value(), Operator::name(), rhs.value(), result); dbgln_if(WASM_TRACE_DEBUG, "{} {} {} = {}", lhs.value(), Operator::name(), rhs.value(), result);
configuration.stack().peek() = Value(result); lhs_entry = Value(result);
} }
template<typename PopType, typename PushType, typename Operator> template<typename PopType, typename PushType, typename Operator>
@ -197,7 +197,7 @@ void BytecodeInterpreter::unary_operation(Configuration& configuration)
result = call_result; result = call_result;
} }
dbgln_if(WASM_TRACE_DEBUG, "map({}) {} = {}", Operator::name(), *value, result); dbgln_if(WASM_TRACE_DEBUG, "map({}) {} = {}", Operator::name(), *value, result);
configuration.stack().peek() = Value(result); entry = Value(result);
} }
template<typename T> template<typename T>

6
Userland/Libraries/LibWasm/AbstractMachine/Configuration.cpp
View file

@ -42,10 +42,8 @@ Result Configuration::call(Interpreter& interpreter, FunctionAddress address, Ve
if (!function) if (!function)
return Trap {}; return Trap {};
if (auto* wasm_function = function->get_pointer<WasmFunction>()) { if (auto* wasm_function = function->get_pointer<WasmFunction>()) {
Vector<Value> locals; Vector<Value> locals = move(arguments);
locals.ensure_capacity(arguments.size() + wasm_function->code().locals().size()); locals.ensure_capacity(locals.size() + wasm_function->code().locals().size());
for (auto& value : arguments)
locals.append(Value { value });
for (auto& type : wasm_function->code().locals()) for (auto& type : wasm_function->code().locals())
locals.empend(type, 0ull); locals.empend(type, 0ull);