2008-01-16  Jakub Jelinek  <jakub@redhat.com>
	Richard Guenther  <rguenther@suse.de>

	PR c/34668
	* gimplify.c (fold_indirect_ref_rhs): Rename to ...
	(gimple_fold_indirect_ref_rhs): ... this.
	(gimple_fold_indirect_ref): New function with foldings
	that preserve lvalueness.
	(gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
	* tree-flow.h (gimple_fold_indirect_ref): Declare.
	* tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
	to fold an INDIRECT_REF, fall back to the old use of
	fold_indirect_ref_1.

	* gcc.dg/pr34668-1.c: New test.
	* gcc.dg/pr34668-2.c: Likewise.

Co-Authored-By: Richard Guenther <rguenther@suse.de>

From-SVN: r131572