feat: 编译管线/类型层 crate 补全多级日志宏 + 关键路径日志

crates/oxide_dce/Cargo.toml

@@ -11,6 +11,7 @@ oxide_ir = { path = "../oxide_ir" }
 oxide_cfg = { path = "../oxide_cfg" }
 oxide_bytecode = { path = "../oxide_bytecode" }
 oxide_liveness = { path = "../oxide_liveness" }
+oxide_log = { path = "../oxide_log" }
 
 [dev-dependencies]
 oxide_parser = { path = "../oxide_parser" }

crates/oxide_dce/src/dce_log.rs

@@ -0,0 +1,37 @@
+//! DCE 日志宏：`dce_error!/warn!/info!/debug!/trace!`，经由 oxide_log 上报。
+//! 编译管线属 Kernel 子系统，`OXIDE_LOG=oxide::kernel=debug` 控制本 crate 日志。
+
+#[macro_export]
+macro_rules! dce_error {
+    ($($arg:tt)*) => {
+        oxide_log::__log_event!("oxide::kernel", oxide_log::tracing::Level::ERROR, $($arg)*)
+    };
+}
+
+#[macro_export]
+macro_rules! dce_warn {
+    ($($arg:tt)*) => {
+        oxide_log::__log_event!("oxide::kernel", oxide_log::tracing::Level::WARN, $($arg)*)
+    };
+}
+
+#[macro_export]
+macro_rules! dce_info {
+    ($($arg:tt)*) => {
+        oxide_log::__log_event!("oxide::kernel", oxide_log::tracing::Level::INFO, $($arg)*)
+    };
+}
+
+#[macro_export]
+macro_rules! dce_debug {
+    ($($arg:tt)*) => {
+        oxide_log::__log_event!("oxide::kernel", oxide_log::tracing::Level::DEBUG, $($arg)*)
+    };
+}
+
+#[macro_export]
+macro_rules! dce_trace {
+    ($($arg:tt)*) => {
+        oxide_log::__log_event!("oxide::kernel", oxide_log::tracing::Level::TRACE, $($arg)*)
+    };
+}

crates/oxide_dce/src/lib.rs

@@ -13,6 +13,7 @@
 //! 精确二轮 `dce_precise`：liveness 驱动的死指令 + 局部死 STORE_VAR 删除，
 //! 消费 `oxide_liveness::LiveInfo`，mark-sweep 重建复用 Pass C。
 
+mod dce_log;
 mod iter_sweep;
 mod precise_sweep;
 mod reachability;
@@ -31,6 +32,8 @@ pub fn dce(f: &mut IRFunction) {
     let mut keep = reachability::pass_a_reachable(f);
     // Pass B：可达存活指令上全函数 use 计数迭代删除到不动点（连锁删上游写者）。
     iter_sweep::pass_b_dead_code(f, &mut keep);
+    let dead = keep.iter().filter(|k| !**k).count();
+    dce_info!("DCE: removing {} dead instructions", dead);
     // Pass C：mark-sweep 一次性重建 insts + label_pos 重映射。
     rebuild::pass_c_sweep(f, &keep);
 }