PR rtl-optimization/49429
	PR target/49454
	PR rtl-optimization/86334
	PR target/88906
	* expr.c (emit_block_move_hints): Move marking of MEM_EXPRs
	addressable from here...
	(emit_block_op_via_libcall): ... to here.

	* gcc.target/i386/pr86334.c: New test.
	* gcc.target/i386/pr88906.c: New test.

From-SVN: r268138