From 39b468e17a4977f0be82f47880a32b99842853fa Mon Sep 17 00:00:00 2001
From: Marijn Haverbeke <marijnh@gmail.com>
Date: Thu, 6 Oct 2011 09:40:42 +0200
Subject: [PATCH] Fix problem with polymorphic return value being instantiated
 as nil

Closes #1005
---
 src/comp/middle/trans.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/comp/middle/trans.rs b/src/comp/middle/trans.rs
index 3c7dbe465527..10418cdfc542 100644
--- a/src/comp/middle/trans.rs
+++ b/src/comp/middle/trans.rs
@@ -3785,7 +3785,7 @@ fn trans_args(cx: @block_ctxt, outer_cx: @block_ctxt, llenv: ValueRef,
     } else {
         alt dest {
           ignore. {
-            if ty::type_is_nil(tcx, full_retty) ||
+            if ty::type_is_nil(tcx, retty) ||
                !option::is_none(lliterbody) {
                 llvm::LLVMGetUndef(T_ptr(llretty))
             } else { alloca(cx, llretty) }