re PR middle-end/44809 (Mozilla build fails in gimplification.)

2010-07-04  Richard Guenther  <rguenther@suse.de>

	PR middle-end/44809
	* gimplify.c (gimplify_expr): Properly build a MEM_REF instead
	of an INDIRECT_REF.

	* g++.dg/torture/pr44809.C: New testcase.

From-SVN: r161803

gcc/ChangeLog

 2010-07-04  Richard Guenther  <rguenther@suse.de>
 
+	PR middle-end/44809
+	* gimplify.c (gimplify_expr): Properly build a MEM_REF instead
+	of an INDIRECT_REF.
+
+2010-07-04  Richard Guenther  <rguenther@suse.de>
+
 	PR tree-optimization/44479
 	* tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Avoid
 	extra SSA name copy statements which preserves points-to

gcc/gimplify.c

@@ -7416,7 +7416,7 @@ gimplify_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p,
 	 that temporary.  */
       tmp = build_fold_addr_expr_loc (input_location, *expr_p);
       gimplify_expr (&tmp, pre_p, post_p, is_gimple_reg, fb_rvalue);
-      *expr_p = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (tmp)), tmp);
+      *expr_p = build_simple_mem_ref (tmp);
     }
   else if ((fallback & fb_rvalue) && is_gimple_reg_rhs_or_call (*expr_p))
     {

gcc/testsuite/ChangeLog

 2010-07-04  Richard Guenther  <rguenther@suse.de>
 
+	PR middle-end/44809
+	* g++.dg/torture/pr44809.C: New testcase.
+
+2010-07-04  Richard Guenther  <rguenther@suse.de>
+
 	PR tree-optimization/44656
 	* gcc.dg/tree-ssa/loadpre6.c: Remove XFAIL.
 

gcc/testsuite/g++.dg/torture/pr44809.C

+// { dg-do compile }
+unsigned int mEvictionRank[(1 << 5)];
+void Unswap(int i)
+{ 
+  mEvictionRank[i] = ({ unsigned int __v = i; __v; });
+}