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LibJS/JIT: Stub out the JIT compiler on everything but ARCH(X86_64)

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We don't support other architectures yet!
This commit is contained in:
Andreas Kling 2023-10-27 15:14:49 +02:00
parent d1c701f79f
commit a645b9c6c3
2 changed files with 100 additions and 81 deletions
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103
Userland/Libraries/LibJS/JIT/Compiler.cpp
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@ -5,6 +5,7 @@
*/
#include <AK/OwnPtr.h>
#include <AK/Platform.h>
#include <LibJS/Bytecode/CommonImplementations.h>
#include <LibJS/Bytecode/Instruction.h>
#include <LibJS/Bytecode/Interpreter.h>
@ -17,23 +18,25 @@
#include <sys/mman.h>
#include <unistd.h>
#define LOG_JIT_SUCCESS 1
#define LOG_JIT_FAILURE 1
#define DUMP_JIT_MACHINE_CODE_TO_STDOUT 0
#if ARCH(X86_64)
#define TRY_OR_SET_EXCEPTION(expression) \
({ \
/* Ignore -Wshadow to allow nesting the macro. */ \
AK_IGNORE_DIAGNOSTIC("-Wshadow", \
auto&& _temporary_result = (expression)); \
static_assert(!::AK::Detail::IsLvalueReference<decltype(_temporary_result.release_value())>, \
"Do not return a reference from a fallible expression"); \
if (_temporary_result.is_error()) [[unlikely]] { \
vm.bytecode_interpreter().reg(Bytecode::Register::exception()) = _temporary_result.release_error().value().value(); \
return {}; \
} \
_temporary_result.release_value(); \
})
# define LOG_JIT_SUCCESS 1
# define LOG_JIT_FAILURE 1
# define DUMP_JIT_MACHINE_CODE_TO_STDOUT 0
# define TRY_OR_SET_EXCEPTION(expression) \
({ \
/* Ignore -Wshadow to allow nesting the macro. */ \
AK_IGNORE_DIAGNOSTIC("-Wshadow", \
auto&& _temporary_result = (expression)); \
static_assert(!::AK::Detail::IsLvalueReference<decltype(_temporary_result.release_value())>, \
"Do not return a reference from a fallible expression"); \
if (_temporary_result.is_error()) [[unlikely]] { \
vm.bytecode_interpreter().reg(Bytecode::Register::exception()) = _temporary_result.release_error().value().value(); \
return {}; \
} \
_temporary_result.release_value(); \
})
namespace JS::JIT {
@ -434,23 +437,23 @@ static ThrowCompletionOr<Value> typed_equals(VM&, Value src1, Value src2)
return Value(is_strictly_equal(src1, src2));
}
#define DO_COMPILE_COMMON_BINARY_OP(TitleCaseName, snake_case_name) \
static Value cxx_##snake_case_name(VM& vm, Value lhs, Value rhs) \
{ \
return TRY_OR_SET_EXCEPTION(snake_case_name(vm, lhs, rhs)); \
} \
\
void Compiler::compile_##snake_case_name(Bytecode::Op::TitleCaseName const& op) \
{ \
load_vm_register(ARG1, op.lhs()); \
load_vm_register(ARG2, Bytecode::Register::accumulator()); \
m_assembler.native_call((void*)cxx_##snake_case_name); \
store_vm_register(Bytecode::Register::accumulator(), RET); \
check_exception(); \
}
# define DO_COMPILE_COMMON_BINARY_OP(TitleCaseName, snake_case_name) \
static Value cxx_##snake_case_name(VM& vm, Value lhs, Value rhs) \
{ \
return TRY_OR_SET_EXCEPTION(snake_case_name(vm, lhs, rhs)); \
} \
\
void Compiler::compile_##snake_case_name(Bytecode::Op::TitleCaseName const& op) \
{ \
load_vm_register(ARG1, op.lhs()); \
load_vm_register(ARG2, Bytecode::Register::accumulator()); \
m_assembler.native_call((void*)cxx_##snake_case_name); \
store_vm_register(Bytecode::Register::accumulator(), RET); \
check_exception(); \
}
JS_ENUMERATE_COMMON_BINARY_OPS_WITHOUT_FAST_PATH(DO_COMPILE_COMMON_BINARY_OP)
#undef DO_COMPILE_COMMON_BINARY_OP
# undef DO_COMPILE_COMMON_BINARY_OP
static Value cxx_less_than(VM& vm, Value lhs, Value rhs)
{
@ -509,22 +512,22 @@ static ThrowCompletionOr<Value> typeof_(VM& vm, Value value)
return PrimitiveString::create(vm, value.typeof());
}
#define DO_COMPILE_COMMON_UNARY_OP(TitleCaseName, snake_case_name) \
static Value cxx_##snake_case_name(VM& vm, Value value) \
{ \
return TRY_OR_SET_EXCEPTION(snake_case_name(vm, value)); \
} \
\
void Compiler::compile_##snake_case_name(Bytecode::Op::TitleCaseName const&) \
{ \
load_vm_register(ARG1, Bytecode::Register::accumulator()); \
m_assembler.native_call((void*)cxx_##snake_case_name); \
store_vm_register(Bytecode::Register::accumulator(), RET); \
check_exception(); \
}
# define DO_COMPILE_COMMON_UNARY_OP(TitleCaseName, snake_case_name) \
static Value cxx_##snake_case_name(VM& vm, Value value) \
{ \
return TRY_OR_SET_EXCEPTION(snake_case_name(vm, value)); \
} \
\
void Compiler::compile_##snake_case_name(Bytecode::Op::TitleCaseName const&) \
{ \
load_vm_register(ARG1, Bytecode::Register::accumulator()); \
m_assembler.native_call((void*)cxx_##snake_case_name); \
store_vm_register(Bytecode::Register::accumulator(), RET); \
check_exception(); \
}
JS_ENUMERATE_COMMON_UNARY_OPS(DO_COMPILE_COMMON_UNARY_OP)
#undef DO_COMPILE_COMMON_UNARY_OP
# undef DO_COMPILE_COMMON_UNARY_OP
void Compiler::compile_return(Bytecode::Op::Return const&)
{
@ -1016,19 +1019,19 @@ OwnPtr<NativeExecutable> Compiler::compile(Bytecode::Executable& bytecode_execut
compiler.compile_less_than(static_cast<Bytecode::Op::LessThan const&>(op));
break;
#define DO_COMPILE_COMMON_BINARY_OP(TitleCaseName, snake_case_name) \
# define DO_COMPILE_COMMON_BINARY_OP(TitleCaseName, snake_case_name) \
case Bytecode::Instruction::Type::TitleCaseName: \
compiler.compile_##snake_case_name(static_cast<Bytecode::Op::TitleCaseName const&>(op)); \
break;
JS_ENUMERATE_COMMON_BINARY_OPS_WITHOUT_FAST_PATH(DO_COMPILE_COMMON_BINARY_OP)
#undef DO_COMPILE_COMMON_BINARY_OP
# undef DO_COMPILE_COMMON_BINARY_OP
#define DO_COMPILE_COMMON_UNARY_OP(TitleCaseName, snake_case_name) \
# define DO_COMPILE_COMMON_UNARY_OP(TitleCaseName, snake_case_name) \
case Bytecode::Instruction::Type::TitleCaseName: \
compiler.compile_##snake_case_name(static_cast<Bytecode::Op::TitleCaseName const&>(op)); \
break;
JS_ENUMERATE_COMMON_UNARY_OPS(DO_COMPILE_COMMON_UNARY_OP)
#undef DO_COMPILE_COMMON_UNARY_OP
# undef DO_COMPILE_COMMON_UNARY_OP
default:
if constexpr (LOG_JIT_FAILURE) {
@ -1088,3 +1091,5 @@ OwnPtr<NativeExecutable> Compiler::compile(Bytecode::Executable& bytecode_execut
}
}
#endif