From 1e988f228d3bef3547fa711aaee3ba89e0340eaf Mon Sep 17 00:00:00 2001
From: Marijn Haverbeke <marijnh@gmail.com>
Date: Mon, 26 Sep 2011 04:08:45 +0200
Subject: [PATCH] Don't call trans_bind_thunk in an unreachable context

Closes #973
---
 src/comp/middle/trans.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/comp/middle/trans.rs b/src/comp/middle/trans.rs
index e5190aaa635e..df5e2a5e80fa 100644
--- a/src/comp/middle/trans.rs
+++ b/src/comp/middle/trans.rs
@@ -3596,6 +3596,10 @@ fn trans_bind_1(cx: @block_ctxt, outgoing_fty: ty::t,
         bound_vals += [lv];
         bound_tys += [ty::expr_ty(bcx_tcx(cx), e)];
     }
+    if bcx.unreachable {
+        ret rslt(bcx, llvm::LLVMGetUndef(
+            T_ptr(type_of_or_i8(bcx, outgoing_fty))));
+    }
 
     // Actually construct the closure
     let closure =