PR c/43288
	* ipa.c (function_and_variable_visibility) Normalize COMMON bits.
	* varasm.c (get_variable_section): Don't do that here...
	(make_decl_rtl): ... and here.
	(do_assemble_alias): Produce decl RTL.
	(assemble_alias): Likewise.

	* gcc.dg/compile/pr43288.c: New test.

From-SVN: r157366