gcc/
	PR target/54009
	* config/rs6000/rs6000.c (mem_operand_gpr): Check that LO_SUM
	addresses won't wrap when offsetting.
	(rs6000_secondary_reload): Provide secondary reloads needed for
	wrapping LO_SUM addresses.

gcc/testsuite/
	PR target/54009
	* gcc.target/powerpc/pr54009.c: New test.

From-SVN: r195836