test: 拆分 VM 测试并新增多项测试

crates/oxide_vm/tests/bench_tests.rs

@@ -0,0 +1,37 @@
+use oxide_compiler::compiler::Compiler;
+use oxide_parser::Allocator;
+use oxide_vm::vm::Vm;
+
+#[test]
+fn bench_1m_property_reads() {
+    use std::time::Instant;
+
+    let allocator = Allocator::default();
+    let source = "({a: 1, b: 2, c: 3, d: 4, e: 5}).e";
+    let program = oxide_parser::parse(&allocator, source).expect("parse failed");
+    let module = Compiler::new().compile(&program).expect("compile failed");
+
+    let mut vm = Vm::new();
+    vm.run(&module).expect("vm run failed");
+    for _ in 0..100 {
+        vm.rerun().ok();
+    }
+
+    const N: usize = 1_000_000;
+    let start = Instant::now();
+    for _ in 0..N {
+        vm.rerun().ok();
+    }
+    let elapsed = start.elapsed();
+    let ns_per = elapsed.as_nanos() as f64 / N as f64;
+    println!(
+        "1M IC property reads: {:.2}ms ({:.0} ns/read)",
+        elapsed.as_secs_f64() * 1000.0,
+        ns_per
+    );
+    if cfg!(debug_assertions) {
+        println!("  (debug build -- skipping timing assertion)");
+    } else {
+        assert!(ns_per < 500.0, "{} ns/read exceeds 500ns target", ns_per);
+    }
+}