---

yaml
---
r: 5425
b: refs/heads/master
c: fcd1773
h: refs/heads/master
i:
  5423: c26dfb7
v: v3

Author: pcwalton

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a034f87146e60e1db2327c6f6807c47406a1bb0b
+refs/heads/master: fcd17731cf7e27bcc7abb24b0aefb9d3dce15ed3

trunk/src/comp/middle/trans.rs

@@ -4312,6 +4312,11 @@ fn type_is_immediate(ccx: @crate_ctxt, t: ty::t) -> bool {
 fn do_spill(cx: @block_ctxt, v: ValueRef, t: ty::t) -> result {
     // We have a value but we have to spill it, and root it, to pass by alias.
     let bcx = cx;
+
+    if ty::type_is_bot(bcx_tcx(bcx), t) {
+        ret rslt(bcx, C_null(T_ptr(T_i8())));
+    }
+
     let r = alloc_ty(bcx, t);
     bcx = r.bcx;
     let llptr = r.val;