From f28a9d8f5203fc01c870ec15b44f8156ebc63168 Mon Sep 17 00:00:00 2001
From: Patrick Walton <pcwalton@mimiga.net>
Date: Thu, 7 Apr 2011 18:00:29 -0700
Subject: rustc: Pointer cast when crossing a box boundary for statically-sized
 elements in trans_index()

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

(limited to 'src')

diff --git a/src/comp/middle/trans.rs b/src/comp/middle/trans.rs
index a8e75176..28b22ea2 100644
--- a/src/comp/middle/trans.rs
+++ b/src/comp/middle/trans.rs
@@ -3892,6 +3892,10 @@ fn trans_index(@block_ctxt cx, &ast.span sp, @ast.expr base,
         elt = next_cx.build.GEP(body, vec(C_int(0), scaled_ix));
     } else {
         elt = next_cx.build.GEP(body, vec(C_int(0), ix_val));
+
+        // We're crossing a box boundary here, so we may need to pointer cast.
+        auto llunitty = type_of(next_cx.fcx.ccx, unit_ty);
+        elt = next_cx.build.PointerCast(elt, T_ptr(llunitty));
     }
 
     ret lval_mem(next_cx, elt);
-- 
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