libgo: Update to Go 1.2.1 release.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208286 138bc75d-0d04-0410-961f-82ee72b054a4
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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208287 138bc75d-0d04-0410-961f-82ee72b054a4
2014-03-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* configure.tgt: Unsupported for little endian PowerPC for now.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208290 138bc75d-0d04-0410-961f-82ee72b054a4