* config/tc-mips.c (HAVE_IN_PLACE_ADDENDS): New macro.

	* config/tc-mips.c (HAVE_IN_PLACE_ADDENDS): New macro.
	(reloc_needs_lo_p): Only return true if HAVE_IN_PLACE_ADDENDS.
	(mips_frob_file): Rework so that only a single pass through the
	relocs is needed.  Allow %lo()s to have higher offsets than their
	corresponding %hi()s or %got()s.

testsuite/
	* gas/mips/elf{,el}-rel.d: Adjust so that the earliest %hi() matches
	the earliest %lo().
	* gas/mips/elf-rel11.d: Don't expect the relocs to be reordered.
	* gas/mips/elf-rel20.[sd]: New test.
	* gas/mips/mips.exp: Run it.