---

yaml
---
r: 194805
b: refs/heads/auto
c: 5733726
h: refs/heads/master
i:
  194803: 1028da3
v: v3

Author: pnkfelix

[refs]

@@ -10,7 +10,7 @@ refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: 5bc35b1852ea3b7871befeeeec7531107e147278
+refs/heads/auto: 5733726508bbfddebf1024e41b2d34439d548bdb
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c
 refs/tags/0.1: b19db808c2793fe2976759b85a355c3ad8c8b336

branches/auto/src/libcore/mem.rs

@@ -173,12 +173,15 @@ pub unsafe fn zeroed<T>() -> T {
 #[inline]
 #[unstable(feature = "filling_drop")]
 pub unsafe fn dropped<T>() -> T {
-    let mut x: T = uninitialized();
-    let p: *mut u8 = transmute(&mut x as *mut T);
-    for i in 0..size_of::<T>() {
-        *p.offset(i as isize) = POST_DROP_U8;
-    }
-    x
+    #[cfg(stage0)]
+    #[inline(always)]
+    unsafe fn dropped_impl<T>() -> T { zeroed() }
+
+    #[cfg(not(stage0))]
+    #[inline(always)]
+    unsafe fn dropped_impl<T>() -> T { intrinsics::init_dropped() }
+
+    dropped_impl()
 }
 
 /// Create an uninitialized value.