[Patch]: Fix ICE by expand_expr_addr_expr_1

[Tristan Gingold]

Hi,

I got ICE in plus_constant (after the assertions were added) due to 
expand_expr_addr_expr_1 during build on ia64/Openvms.

This function is called with TMODE == SImode (32 bit pointers) but EXP 
designating a variable on the frame (whose register is DImode).
Hence the ICE.

Fixed by the following patch.
No regression on x86-64 GNU/Linux.

Ok for trunk ?

Tristan.

2012-05-15  Tristan Gingold  <ging...@adacore.com>

        * expr.c (expand_expr_addr_expr_1): Call
        convert_memory_address_addr_space.

diff --git a/gcc/expr.c b/gcc/expr.c
index 3edb4a2..1b0ad8d 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -7600,6 +7600,7 @@ expand_expr_addr_expr_1 (tree exp, rtx target, enum machin
       TYPE_USER_ALIGN (TREE_TYPE (inner)) = 1;
     }
   result = expand_expr_addr_expr_1 (inner, subtarget, tmode, modifier, as);
+  result = convert_memory_address_addr_space (tmode, result, as);
 
   if (offset)
     {