rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Enable -mpower9-minmax by default for -mcpu...

rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Enable -mpower9-minmax by default for -mcpu=power9.

[gcc]
2017-01-19  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000-cpus.def (ISA_3_0_MASKS_SERVER): Enable
	-mpower9-minmax by default for -mcpu=power9.
	(ISA_3_MASKS_IEEE): Require -mvsx-small-integer to enable IEEE
	128-bit floating point.

[gcc/testsuite]
2017-01-19  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* gcc.target/powerpc/float128-hw.c: Do not require IEEE 128-bit
	floating point hardware to run test.

From-SVN: r244662