* gcc-interface/gigi.h (add_stmt_force): Declare.
	(add_stmt_with_node_force): Likewise.
	* gcc-interface/trans.c (Attribute_to_gnu): Don't set TREE_SIDE_EFFECTS
	on the SAVE_EXPR built for cached expressions of parameter attributes.
	(Subprogram_Body_to_gnu): Force evaluation of the SAVE_EXPR built for
	cached expressions of parameter attributes.
	(add_stmt_force): New function.
	(add_stmt_with_node_force): Likewise.

From-SVN: r166222