backport: [multiple changes]

backport: [multiple changes]

2014-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	Apply mainline r207798
	2014-02-26  Alan Modra  <amodra@gmail.com>
	PR target/58675
	PR target/57935
	* config/rs6000/rs6000.c (rs6000_secondary_reload_inner): Use
	find_replacement on parts of insn rtl that might be reloaded.

	Backport from mainline r208287
	2014-03-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_preferred_reload_class): Disallow
	reload of PLUS rtx's outside of GENERAL_REGS or BASE_REGS; relax
	constraint on constants to permit them being loaded into
	GENERAL_REGS or BASE_REGS.

From-SVN: r209112