re PR middle-end/53849 (ICE: in add_referenced_var_1, at tree-dfa.c:567 with -O2 -ftree-parallelize-loops=2 -fno-tree-loop-im)

2012-07-04  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/53849
	* tree-cfg.c (move_stmt_op): Only call add_referenced_var
	for duplicated locals.  Use add_referenced_var_1 to avoid
	pushing/popping cfun.

	* gcc.dg/pr53849.c: New testcase.

From-SVN: r189255