re PR middle-end/64415 (ICE: verify_ssa failed / segmentation fault with LTO)

re PR middle-end/64415 (ICE: verify_ssa failed / segmentation fault with LTO)

2015-01-14  Richard Biener  <rguenther@suse.de>

	PR lto/64415
	* tree-inline.c (insert_debug_decl_map): Check destination
	function MAY_HAVE_DEBUG_STMTS.
	(insert_init_debug_bind): Likewise.
	(insert_init_stmt): Remove redundant check.
	(remap_gimple_stmt): Drop debug stmts if the destination
	function has var-tracking assignments disabled.

	* gcc.dg/lto/pr64415_0.c: New testcase.
	* gcc.dg/lto/pr64415_1.c: Likewise.

From-SVN: r219588