mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 13:57:35 +00:00
LibJIT+LibJS: Consolidate sized immediate assembler operands
This replaces the existing sized immediate operands with a unified immediate operand that leaves the size handling to the assembler, instead of the user. This has 2 benefits: 1. The user doesn't need to know which specific operand size the instruction expects when using it 2. The assembler automatically chooses the minimal operand size that fits the given value, resulting in smaller code size without any additional effort from the user. While the change is small, it still has a noticeable effect on performance (since it increases the I$ hit rate), resulting in 5% speedup on kraken a-star.
This commit is contained in:
Idan Horowitz
Andreas Kling
parent
e4715aa82a
commit
538a570852
2 changed files with 142 additions and 112 deletions
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@ -74,7 +74,7 @@ void Compiler::compile_load_immediate(Bytecode::Op::LoadImmediate const& op)
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{
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m_assembler.mov(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm64(op.value().encoded()));
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Assembler::Operand::Imm(op.value().encoded()));
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store_vm_register(Bytecode::Register::accumulator(), GPR0);
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}
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@ -134,13 +134,13 @@ void Compiler::compile_to_boolean(Assembler::Reg dst, Assembler::Reg src)
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// dst >>= 48;
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m_assembler.shift_right(
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Assembler::Operand::Register(dst),
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Assembler::Operand::Imm8(48));
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Assembler::Operand::Imm(48));
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// if (dst != BOOLEAN_TAG) goto slow_case;
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auto slow_case = m_assembler.make_label();
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m_assembler.jump_if_not_equal(
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Assembler::Operand::Register(dst),
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Assembler::Operand::Imm32(BOOLEAN_TAG),
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Assembler::Operand::Imm(BOOLEAN_TAG),
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slow_case);
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// Fast path for JS::Value booleans.
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@ -169,7 +169,7 @@ void Compiler::compile_to_boolean(Assembler::Reg dst, Assembler::Reg src)
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// dst &= 1;
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m_assembler.bitwise_and(
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Assembler::Operand::Register(dst),
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Assembler::Operand::Imm32(1));
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Assembler::Operand::Imm(1));
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}
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void Compiler::compile_jump_conditional(Bytecode::Op::JumpConditional const& op)
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@ -191,15 +191,15 @@ void Compiler::compile_jump_nullish(Bytecode::Op::JumpNullish const& op)
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m_assembler.shift_right(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm8(48));
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Assembler::Operand::Imm(48));
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m_assembler.bitwise_and(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(IS_NULLISH_EXTRACT_PATTERN));
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Assembler::Operand::Imm(IS_NULLISH_EXTRACT_PATTERN));
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m_assembler.jump_if_equal(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(IS_NULLISH_PATTERN),
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Assembler::Operand::Imm(IS_NULLISH_PATTERN),
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label_for(op.true_target()->block()));
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m_assembler.jump(label_for(op.false_target()->block()));
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@ -218,12 +218,12 @@ void Compiler::branch_if_int32(Assembler::Reg reg, Codegen codegen)
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{
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// GPR0 = reg >> 48;
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m_assembler.mov(Assembler::Operand::Register(GPR0), Assembler::Operand::Register(reg));
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m_assembler.shift_right(Assembler::Operand::Register(GPR0), Assembler::Operand::Imm8(48));
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m_assembler.shift_right(Assembler::Operand::Register(GPR0), Assembler::Operand::Imm(48));
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auto not_int32_case = m_assembler.make_label();
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m_assembler.jump_if_not_equal(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(INT32_TAG),
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Assembler::Operand::Imm(INT32_TAG),
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not_int32_case);
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codegen();
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@ -236,20 +236,20 @@ void Compiler::branch_if_both_int32(Assembler::Reg lhs, Assembler::Reg rhs, Code
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{
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// GPR0 = lhs >> 48;
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m_assembler.mov(Assembler::Operand::Register(GPR0), Assembler::Operand::Register(lhs));
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m_assembler.shift_right(Assembler::Operand::Register(GPR0), Assembler::Operand::Imm8(48));
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m_assembler.shift_right(Assembler::Operand::Register(GPR0), Assembler::Operand::Imm(48));
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// GPR1 = rhs >> 48;
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m_assembler.mov(Assembler::Operand::Register(GPR1), Assembler::Operand::Register(rhs));
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m_assembler.shift_right(Assembler::Operand::Register(GPR1), Assembler::Operand::Imm8(48));
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m_assembler.shift_right(Assembler::Operand::Register(GPR1), Assembler::Operand::Imm(48));
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auto not_int32_case = m_assembler.make_label();
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m_assembler.jump_if_not_equal(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(INT32_TAG),
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Assembler::Operand::Imm(INT32_TAG),
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not_int32_case);
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m_assembler.jump_if_not_equal(
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Assembler::Operand::Register(GPR1),
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Assembler::Operand::Imm32(INT32_TAG),
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Assembler::Operand::Imm(INT32_TAG),
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not_int32_case);
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codegen();
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@ -271,7 +271,7 @@ void Compiler::compile_increment(Bytecode::Op::Increment const&)
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Assembler::Operand::Register(ARG1));
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m_assembler.mov(
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Assembler::Operand::Register(GPR1),
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Assembler::Operand::Imm64(0xffffffff));
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Assembler::Operand::Imm(0xffffffff));
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m_assembler.bitwise_and(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Register(GPR1));
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@ -279,13 +279,13 @@ void Compiler::compile_increment(Bytecode::Op::Increment const&)
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// if (GPR0 == 0x7fffffff) goto slow_case;
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m_assembler.jump_if_equal(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(0x7fffffff),
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Assembler::Operand::Imm(0x7fffffff),
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slow_case);
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// ARG1 += 1;
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m_assembler.add(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm32(1));
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Assembler::Operand::Imm(1));
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// accumulator = ARG1;
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store_vm_register(Bytecode::Register::accumulator(), ARG1);
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@ -321,7 +321,7 @@ void Compiler::check_exception()
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{
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// if (exception.is_empty()) goto no_exception;
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load_vm_register(GPR0, Bytecode::Register::exception());
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m_assembler.mov(Assembler::Operand::Register(GPR1), Assembler::Operand::Imm64(Value().encoded()));
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m_assembler.mov(Assembler::Operand::Register(GPR1), Assembler::Operand::Imm(Value().encoded()));
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auto no_exception = m_assembler.make_label();
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m_assembler.jump_if_equal(Assembler::Operand::Register(GPR0), Assembler::Operand::Register(GPR1), no_exception);
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@ -334,7 +334,7 @@ void Compiler::check_exception()
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Assembler::Operand::Mem64BaseAndOffset(UNWIND_CONTEXT_BASE, 0));
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m_assembler.jump_if_not_equal(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(0),
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Assembler::Operand::Imm(0),
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handle_exception);
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m_assembler.exit();
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@ -353,13 +353,13 @@ void Compiler::check_exception()
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Assembler::Operand::Mem64BaseAndOffset(UNWIND_CONTEXT_BASE, 8));
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m_assembler.jump_if_equal(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(0),
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Assembler::Operand::Imm(0),
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no_handler);
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load_vm_register(GPR1, Bytecode::Register::exception());
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store_vm_register(Bytecode::Register::accumulator(), GPR1);
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m_assembler.mov(
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Assembler::Operand::Register(GPR1),
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Assembler::Operand::Imm64(Value().encoded()));
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Assembler::Operand::Imm(Value().encoded()));
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store_vm_register(Bytecode::Register::exception(), GPR1);
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m_assembler.jump(Assembler::Operand::Register(GPR0));
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@ -373,7 +373,7 @@ void Compiler::check_exception()
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Assembler::Operand::Mem64BaseAndOffset(UNWIND_CONTEXT_BASE, 16));
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m_assembler.jump_if_equal(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm32(0),
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Assembler::Operand::Imm(0),
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no_finalizer);
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m_assembler.jump(Assembler::Operand::Register(GPR0));
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@ -399,7 +399,7 @@ void Compiler::push_unwind_context(bool valid, Optional<Bytecode::Label> const&
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// push finalizer (patched later)
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m_assembler.mov(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm64(0),
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Assembler::Operand::Imm(0),
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Assembler::Patchable::Yes);
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if (finalizer.has_value())
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block_data_for(finalizer.value().block()).absolute_references_to_here.append(m_assembler.m_output.size() - 8);
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@ -408,14 +408,14 @@ void Compiler::push_unwind_context(bool valid, Optional<Bytecode::Label> const&
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// push handler (patched later)
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m_assembler.mov(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm64(0),
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Assembler::Operand::Imm(0),
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Assembler::Patchable::Yes);
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if (handler.has_value())
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block_data_for(handler.value().block()).absolute_references_to_here.append(m_assembler.m_output.size() - 8);
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m_assembler.push(Assembler::Operand::Register(GPR0));
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// push valid
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m_assembler.push(Assembler::Operand::Imm32(valid));
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m_assembler.push(Assembler::Operand::Imm(valid));
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// UNWIND_CONTEXT_BASE = STACK_POINTER
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m_assembler.mov(
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@ -423,13 +423,13 @@ void Compiler::push_unwind_context(bool valid, Optional<Bytecode::Label> const&
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Assembler::Operand::Register(STACK_POINTER));
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// align stack pointer
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m_assembler.sub(Assembler::Operand::Register(STACK_POINTER), Assembler::Operand::Imm8(8));
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m_assembler.sub(Assembler::Operand::Register(STACK_POINTER), Assembler::Operand::Imm(8));
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}
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void Compiler::pop_unwind_context()
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{
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m_assembler.add(Assembler::Operand::Register(STACK_POINTER), Assembler::Operand::Imm8(32));
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m_assembler.add(Assembler::Operand::Register(UNWIND_CONTEXT_BASE), Assembler::Operand::Imm8(32));
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m_assembler.add(Assembler::Operand::Register(STACK_POINTER), Assembler::Operand::Imm(32));
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m_assembler.add(Assembler::Operand::Register(UNWIND_CONTEXT_BASE), Assembler::Operand::Imm(32));
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}
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void Compiler::compile_enter_unwind_context(Bytecode::Op::EnterUnwindContext const& op)
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@ -517,14 +517,14 @@ void Compiler::compile_less_than(Bytecode::Op::LessThan const& op)
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m_assembler.mov(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm64(Value(false).encoded()));
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Assembler::Operand::Imm(Value(false).encoded()));
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store_vm_register(Bytecode::Register::accumulator(), GPR0);
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m_assembler.jump(end);
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true_case.link(m_assembler);
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m_assembler.mov(
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Assembler::Operand::Register(GPR0),
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Assembler::Operand::Imm64(Value(true).encoded()));
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Assembler::Operand::Imm(Value(true).encoded()));
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store_vm_register(Bytecode::Register::accumulator(), GPR0);
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m_assembler.jump(end);
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@ -580,7 +580,7 @@ void Compiler::compile_new_string(Bytecode::Op::NewString const& op)
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auto const& string = m_bytecode_executable.string_table->get(op.index());
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m_assembler.mov(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm64(bit_cast<u64>(&string)));
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Assembler::Operand::Imm(bit_cast<u64>(&string)));
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m_assembler.native_call((void*)cxx_new_string);
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store_vm_register(Bytecode::Register::accumulator(), RET);
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}
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@ -598,13 +598,13 @@ void Compiler::compile_new_regexp(Bytecode::Op::NewRegExp const& op)
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m_assembler.mov(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm64(bit_cast<u64>(&parsed_regex)));
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Assembler::Operand::Imm(bit_cast<u64>(&parsed_regex)));
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m_assembler.mov(
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Assembler::Operand::Register(ARG2),
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Assembler::Operand::Imm64(bit_cast<u64>(&pattern)));
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Assembler::Operand::Imm(bit_cast<u64>(&pattern)));
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m_assembler.mov(
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Assembler::Operand::Register(ARG3),
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Assembler::Operand::Imm64(bit_cast<u64>(&flags)));
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Assembler::Operand::Imm(bit_cast<u64>(&flags)));
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m_assembler.native_call((void*)cxx_new_regexp);
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store_vm_register(Bytecode::Register::accumulator(), RET);
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@ -637,10 +637,10 @@ void Compiler::compile_new_array(Bytecode::Op::NewArray const& op)
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{
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m_assembler.mov(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm64(op.element_count()));
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Assembler::Operand::Imm(op.element_count()));
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m_assembler.mov(
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Assembler::Operand::Register(ARG2),
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Assembler::Operand::Imm64(op.element_count() ? op.start().index() : 0));
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Assembler::Operand::Imm(op.element_count() ? op.start().index() : 0));
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m_assembler.native_call((void*)cxx_new_array);
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store_vm_register(Bytecode::Register::accumulator(), RET);
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}
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@ -658,13 +658,13 @@ void Compiler::compile_new_function(Bytecode::Op::NewFunction const& op)
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{
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m_assembler.mov(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm64(bit_cast<u64>(&op.function_node())));
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Assembler::Operand::Imm(bit_cast<u64>(&op.function_node())));
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m_assembler.mov(
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Assembler::Operand::Register(ARG2),
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Assembler::Operand::Imm64(bit_cast<u64>(&op.lhs_name())));
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Assembler::Operand::Imm(bit_cast<u64>(&op.lhs_name())));
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m_assembler.mov(
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Assembler::Operand::Register(ARG3),
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Assembler::Operand::Imm64(bit_cast<u64>(&op.home_object())));
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Assembler::Operand::Imm(bit_cast<u64>(&op.home_object())));
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m_assembler.native_call((void*)cxx_new_function);
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store_vm_register(Bytecode::Register::accumulator(), RET);
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}
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@ -679,10 +679,10 @@ void Compiler::compile_get_by_id(Bytecode::Op::GetById const& op)
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load_vm_register(ARG1, Bytecode::Register::accumulator());
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m_assembler.mov(
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Assembler::Operand::Register(ARG2),
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Assembler::Operand::Imm64(op.property().value()));
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Assembler::Operand::Imm(op.property().value()));
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m_assembler.mov(
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Assembler::Operand::Register(ARG3),
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Assembler::Operand::Imm64(op.cache_index()));
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Assembler::Operand::Imm(op.cache_index()));
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m_assembler.native_call((void*)cxx_get_by_id);
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store_vm_register(Bytecode::Register::accumulator(), RET);
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check_exception();
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@ -711,10 +711,10 @@ void Compiler::compile_get_global(Bytecode::Op::GetGlobal const& op)
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{
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m_assembler.mov(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm64(op.identifier().value()));
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Assembler::Operand::Imm(op.identifier().value()));
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m_assembler.mov(
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Assembler::Operand::Register(ARG2),
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Assembler::Operand::Imm64(op.cache_index()));
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Assembler::Operand::Imm(op.cache_index()));
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m_assembler.native_call((void*)cxx_get_global);
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store_vm_register(Bytecode::Register::accumulator(), RET);
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check_exception();
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@ -729,10 +729,10 @@ void Compiler::compile_get_variable(Bytecode::Op::GetVariable const& op)
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{
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m_assembler.mov(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm64(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier()))));
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Assembler::Operand::Imm(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier()))));
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m_assembler.mov(
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Assembler::Operand::Register(ARG2),
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Assembler::Operand::Imm64(op.cache_index()));
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Assembler::Operand::Imm(op.cache_index()));
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m_assembler.native_call((void*)cxx_get_variable);
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store_vm_register(Bytecode::Register::accumulator(), RET);
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check_exception();
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@ -755,16 +755,16 @@ void Compiler::compile_get_callee_and_this_from_environment(Bytecode::Op::GetCal
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{
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m_assembler.mov(
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Assembler::Operand::Register(ARG1),
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Assembler::Operand::Imm64(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier()))));
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Assembler::Operand::Imm(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier()))));
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m_assembler.mov(
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Assembler::Operand::Register(ARG2),
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Assembler::Operand::Imm64(op.cache_index()));
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Assembler::Operand::Imm(op.cache_index()));
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m_assembler.mov(
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Assembler::Operand::Register(ARG3),
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Assembler::Operand::Imm64(op.callee().index()));
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Assembler::Operand::Imm(op.callee().index()));
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m_assembler.mov(
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Assembler::Operand::Register(ARG4),
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Assembler::Operand::Imm64(op.this_().index()));
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Assembler::Operand::Imm(op.this_().index()));
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m_assembler.native_call((void*)cxx_get_callee_and_this_from_environment);
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check_exception();
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}
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@ -797,7 +797,7 @@ void Compiler::compile_resolve_this_binding(Bytecode::Op::ResolveThisBinding con
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|||
load_vm_register(GPR0, Bytecode::Register::this_value());
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(GPR1),
|
||||
Assembler::Operand::Imm64(Value().encoded()));
|
||||
Assembler::Operand::Imm(Value().encoded()));
|
||||
|
||||
auto slow_case = m_assembler.make_label();
|
||||
m_assembler.jump_if_equal(
|
||||
|
|
@ -830,11 +830,11 @@ void Compiler::compile_put_by_id(Bytecode::Op::PutById const& op)
|
|||
load_vm_register(ARG1, op.base());
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG2),
|
||||
Assembler::Operand::Imm64(op.property().value()));
|
||||
Assembler::Operand::Imm(op.property().value()));
|
||||
load_vm_register(ARG3, Bytecode::Register::accumulator());
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG4),
|
||||
Assembler::Operand::Imm64(to_underlying(op.kind())));
|
||||
Assembler::Operand::Imm(to_underlying(op.kind())));
|
||||
m_assembler.native_call((void*)cxx_put_by_id);
|
||||
check_exception();
|
||||
}
|
||||
|
|
@ -853,7 +853,7 @@ void Compiler::compile_put_by_value(Bytecode::Op::PutByValue const& op)
|
|||
load_vm_register(ARG3, Bytecode::Register::accumulator());
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG4),
|
||||
Assembler::Operand::Imm64(to_underlying(op.kind())));
|
||||
Assembler::Operand::Imm(to_underlying(op.kind())));
|
||||
m_assembler.native_call((void*)cxx_put_by_value);
|
||||
check_exception();
|
||||
}
|
||||
|
|
@ -876,14 +876,14 @@ void Compiler::compile_call(Bytecode::Op::Call const& op)
|
|||
load_vm_register(ARG1, op.callee());
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG2),
|
||||
Assembler::Operand::Imm64(op.first_argument().index()));
|
||||
Assembler::Operand::Imm(op.first_argument().index()));
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG3),
|
||||
Assembler::Operand::Imm64(op.argument_count()));
|
||||
Assembler::Operand::Imm(op.argument_count()));
|
||||
load_vm_register(ARG4, op.this_value());
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG5),
|
||||
Assembler::Operand::Imm64(to_underlying(op.call_type())));
|
||||
Assembler::Operand::Imm(to_underlying(op.call_type())));
|
||||
m_assembler.native_call((void*)cxx_call);
|
||||
store_vm_register(Bytecode::Register::accumulator(), RET);
|
||||
check_exception();
|
||||
|
|
@ -898,7 +898,7 @@ void Compiler::compile_typeof_variable(Bytecode::Op::TypeofVariable const& op)
|
|||
{
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG1),
|
||||
Assembler::Operand::Imm64(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier().value()))));
|
||||
Assembler::Operand::Imm(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier().value()))));
|
||||
m_assembler.native_call((void*)cxx_typeof_variable);
|
||||
store_vm_register(Bytecode::Register::accumulator(), RET);
|
||||
check_exception();
|
||||
|
|
@ -919,14 +919,14 @@ void Compiler::compile_set_variable(Bytecode::Op::SetVariable const& op)
|
|||
{
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG1),
|
||||
Assembler::Operand::Imm64(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier().value()))));
|
||||
Assembler::Operand::Imm(bit_cast<u64>(&m_bytecode_executable.get_identifier(op.identifier().value()))));
|
||||
load_vm_register(ARG2, Bytecode::Register::accumulator());
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG3),
|
||||
Assembler::Operand::Imm64(to_underlying(op.mode())));
|
||||
Assembler::Operand::Imm(to_underlying(op.mode())));
|
||||
m_assembler.mov(
|
||||
Assembler::Operand::Register(ARG4),
|
||||
Assembler::Operand::Imm64(to_underlying(op.initialization_mode())));
|
||||
Assembler::Operand::Imm(to_underlying(op.initialization_mode())));
|
||||
m_assembler.native_call((void*)cxx_set_variable);
|
||||
check_exception();
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue