PR c++/68983 (BE)

PR c++/68983 (BE)

	PR c++/67557
gcc/
	* function.c (assign_temp): Guard against TREE_ADDRESSABLE types here.
	* expr.c (store_field): Not here.
	* tree-cfgcleanup.c (fixup_noreturn_call): Don't clear LHS of a
	call with TREE_ADDRESSABLE type.
	* tree-cfg.c (verify_gimple_call): Adjust.
gcc/cp/
	* cvt.c (convert_to_void): Don't strip a TARGET_EXPR of
	TREE_ADDRESSABLE type.

From-SVN: r232167