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LibJS/JIT: Add support for Add/Sub/Mul/Div bytecode ops

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This commit is contained in:
Andreas Kling 2023-10-18 12:37:17 +02:00
parent 891b071654
commit 45be2a8f72
2 changed files with 74 additions and 2 deletions
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72
Userland/Libraries/LibJS/JIT/Compiler.cpp
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@ -315,11 +315,67 @@ void Compiler::compile_leave_unwind_context(Bytecode::Op::LeaveUnwindContext con
void Compiler::compile_throw(Bytecode::Op::Throw const&)
{
load_vm_register(GPR0, Bytecode::Register::accumulator());
load_vm_register(GPR0, Bytecode::Register::accumulator());
store_vm_register(Bytecode::Register::exception(), GPR0);
check_exception();
}
static Value cxx_add(VM& vm, Value lhs, Value rhs)
{
return TRY_OR_SET_EXCEPTION(add(vm, lhs, rhs));
}
void Compiler::compile_add(Bytecode::Op::Add const& op)
{
load_vm_register(ARG1, op.lhs());
load_vm_register(ARG2, Bytecode::Register::accumulator());
m_assembler.native_call((void*)cxx_add);
store_vm_register(Bytecode::Register::accumulator(), RET);
check_exception();
}
static Value cxx_sub(VM& vm, Value lhs, Value rhs)
{
return TRY_OR_SET_EXCEPTION(sub(vm, lhs, rhs));
}
void Compiler::compile_sub(Bytecode::Op::Sub const& op)
{
load_vm_register(ARG1, op.lhs());
load_vm_register(ARG2, Bytecode::Register::accumulator());
m_assembler.native_call((void*)cxx_sub);
store_vm_register(Bytecode::Register::accumulator(), RET);
check_exception();
}
static Value cxx_mul(VM& vm, Value lhs, Value rhs)
{
return TRY_OR_SET_EXCEPTION(mul(vm, lhs, rhs));
}
void Compiler::compile_mul(Bytecode::Op::Mul const& op)
{
load_vm_register(ARG1, op.lhs());
load_vm_register(ARG2, Bytecode::Register::accumulator());
m_assembler.native_call((void*)cxx_mul);
store_vm_register(Bytecode::Register::accumulator(), RET);
check_exception();
}
static Value cxx_div(VM& vm, Value lhs, Value rhs)
{
return TRY_OR_SET_EXCEPTION(div(vm, lhs, rhs));
}
void Compiler::compile_div(Bytecode::Op::Div const& op)
{
load_vm_register(ARG1, op.lhs());
load_vm_register(ARG2, Bytecode::Register::accumulator());
m_assembler.native_call((void*)cxx_div);
store_vm_register(Bytecode::Register::accumulator(), RET);
check_exception();
}
OwnPtr<NativeExecutable> Compiler::compile(Bytecode::Executable const& bytecode_executable)
{
if (getenv("LIBJS_NO_JIT"))
@ -381,6 +437,18 @@ OwnPtr<NativeExecutable> Compiler::compile(Bytecode::Executable const& bytecode_
case Bytecode::Instruction::Type::Throw:
compiler.compile_throw(static_cast<Bytecode::Op::Throw const&>(op));
break;
case Bytecode::Instruction::Type::Add:
compiler.compile_add(static_cast<Bytecode::Op::Add const&>(op));
break;
case Bytecode::Instruction::Type::Sub:
compiler.compile_sub(static_cast<Bytecode::Op::Sub const&>(op));
break;
case Bytecode::Instruction::Type::Mul:
compiler.compile_mul(static_cast<Bytecode::Op::Mul const&>(op));
break;
case Bytecode::Instruction::Type::Div:
compiler.compile_div(static_cast<Bytecode::Op::Div const&>(op));
break;
default:
dbgln("JIT compilation failed: {}", bytecode_executable.name);
dbgln("Unsupported bytecode op: {}", op.to_deprecated_string(bytecode_executable));
@ -424,7 +492,7 @@ OwnPtr<NativeExecutable> Compiler::compile(Bytecode::Executable const& bytecode_
}
size_t res = write(STDOUT_FILENO, compiler.m_output.data(), compiler.m_output.size());
if (!res) {}
if (!res) { }
memcpy(executable_memory, compiler.m_output.data(), compiler.m_output.size());
mprotect(executable_memory, compiler.m_output.size(), PROT_READ | PROT_EXEC);