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perf: upvalue 读取缓存 callee 切片指针省解引用链

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彭俊皓
2026-09-26 20:30:53 +00:00
parent bf19cf112b
commit 717960a9e8
7 changed files with 59 additions and 19 deletions
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crates/oxide_vm/src/vm_runtime.rs
+9
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@@ -101,6 +101,9 @@ macro_rules! inline_save_field {
($recv:ident, $window_regs:ident, inline_callee, opt_copy) => {
$recv.inline_callee
};
($recv:ident, $window_regs:ident, upvalue_cache, copy) => {
$recv.upvalue_cache
};
($recv:ident, $window_regs:ident, generator_dispatch, flag_zero) => {{
let prev = $recv.generator_dispatch;
$recv.generator_dispatch = false;
@@ -208,6 +211,9 @@ macro_rules! inline_restore_field {
($recv:ident, $saved:ident, inline_callee, opt_copy) => {
$recv.inline_callee = $saved.inline_callee
};
($recv:ident, $saved:ident, upvalue_cache, copy) => {
$recv.upvalue_cache = $saved.upvalue_cache
};
($recv:ident, $saved:ident, generator_dispatch, flag_zero) => {
$recv.generator_dispatch = $saved.generator_dispatch
};
@@ -271,6 +277,7 @@ macro_rules! inline_core_fields {
(spill_stack, move_field), // V M
(cell_stack, move_field), // V M
(inline_callee, opt_copy), // V M
(upvalue_cache, copy), // V
(generator_dispatch, flag_zero), // M 调度标志：快照属主值，嵌套期间清零
(async_dispatch, flag_zero), // M 调度标志：快照属主值，嵌套期间清零
(construct_dispatch, flag_zero), // M 调度标志：快照属主值，嵌套期间清零
@@ -523,6 +530,8 @@ impl Vm {
frame.return_addr,
frame.caller_reg_limit
);
// 弹帧后 callee 换回调用方：失效 upvalue 切片缓存。
self.upvalue_cache = None;
if let Some(saved_bc) = self.saved_bytecode_stack.pop() {
self.bytecode = saved_bc;
}