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perf: 函数调用 bytecode 改 Arc 共享（O(1) 帧切换 + IC 写时复制）

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This commit is contained in:
彭俊皓
2026-08-10 15:08:51 +08:00
parent 34fb7c8dff
commit 7efb26bc96
12 changed files with 72 additions and 50 deletions
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crates/oxide_vm/src/dispatch/call.rs
+1 -1
View File
@@ -482,7 +482,7 @@ impl Vm {
return Err(self.error_message_text("RangeError", "Maximum call stack size exceeded"));
}
let sub_bytecode = self.sub_modules[sub_idx].bytecode.clone();
let sub_bytecode = Arc::clone(&self.sub_modules[sub_idx].bytecode);
let sub_n_args = self.sub_modules[sub_idx].n_args as usize;
let sub_n_registers = self.sub_modules[sub_idx].n_registers;
let sub_param_base = self.sub_modules[sub_idx].param_base as usize;
crates/oxide_vm/src/dispatch/property.rs
+7 -5
View File
@@ -305,6 +305,7 @@ impl Vm {
let obj = unsafe { &*obj_ptr };
let prop_name_si = self.property_key_si(self.regs[b]);
let (cached_shape_id, cached_slot, cached_depth) = ic_helper::read_ic_entry(&self.bytecode, &mut self.pc);
let ic_pc = self.pc;
if obj.has_prop_meta() {
let val = self.ordinary_get_with_target(obj, prop_name_si, val, a as u8)?;
if self.accessor_frame_target_reg.take().is_none() {
@@ -322,7 +323,7 @@ impl Vm {
prop_cache_miss();
if template.prop_name == prop_name_si {
if template.position < obj.prop_vec_len() as u32 {
ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), template.position, 0);
ic_helper::write_ic_back(self.bytecode_mut(), ic_pc, obj.shape_id(), template.position, 0);
ic_debug!(
"IC_GET propforge hit shape={} prop={} slot={}",
obj.shape_id(),
@@ -345,7 +346,7 @@ impl Vm {
// 先试自身属性（快路径，depth=0）。
if let Some(pos) = self.kernel_core.shape_forge().lookup_position(obj.shape_id(), prop_name_si) {
if !obj.is_accessor_meta(pos) {
ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), pos, 0);
ic_helper::write_ic_back(self.bytecode_mut(), ic_pc, obj.shape_id(), pos, 0);
ic_debug!("IC_GET write-back own shape={} slot={}", obj.shape_id(), pos);
}
} else {
@@ -356,7 +357,7 @@ impl Vm {
let co_ref = unsafe { &*cursor };
if let Some(pos) = self.kernel_core.shape_forge().lookup_position(co_ref.shape_id(), prop_name_si) {
if !co_ref.is_accessor_meta(pos) {
ic_helper::write_ic_back(&mut self.bytecode, self.pc, co_ref.shape_id(), pos, depth);
ic_helper::write_ic_back(self.bytecode_mut(), ic_pc, co_ref.shape_id(), pos, depth);
ic_debug!(
"IC_GET write-back proto shape={} slot={} depth={}",
co_ref.shape_id(),
@@ -399,6 +400,7 @@ impl Vm {
}
let (cached_shape_id, cached_slot, cached_depth) = ic_helper::read_ic_entry(&self.bytecode, &mut self.pc);
let ic_pc = self.pc;
let value = self.promote_if_needed_for_write_ptr(obj_ptr, self.regs[a]);
let receiver = self.regs[rd];
let obj = unsafe { &mut *obj_ptr };
@@ -414,7 +416,7 @@ impl Vm {
self.profiling.record_ic_miss();
prop_cache_miss();
obj.set_prop_shape(pos, value);
ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), pos, 0);
ic_helper::write_ic_back(self.bytecode_mut(), ic_pc, obj.shape_id(), pos, 0);
ic_debug!("IC_SET write-back shape={} slot={}", obj.shape_id(), pos);
} else {
self.profiling.record_ic_miss();
@@ -423,7 +425,7 @@ impl Vm {
self.ordinary_set_dispatch(obj, prop_name_si, value, receiver)?;
if old_shape != obj.shape_id() {
if let Some(pos) = self.kernel_core.shape_forge().lookup_position(obj.shape_id(), prop_name_si) {
ic_helper::write_ic_back(&mut self.bytecode, self.pc, obj.shape_id(), pos, 0);
ic_helper::write_ic_back(self.bytecode_mut(), ic_pc, obj.shape_id(), pos, 0);
ic_debug!("IC_SET write-back shape={} slot={}", obj.shape_id(), pos);
self.kernel_core.prop_forge().upsert(
obj.shape_id(),