More MIPS vector cleanup work.

More MIPS vector cleanup work.

* config/mips/mips.h (TARGET_CPU_CPP_BUILTINS): Add __mips3d.
* config/mips/generic.md (generic_frecip_fsqrt_step): New.
* config/mips/mips-ps-3d.md (mips_rsqrt1_<fmt>): Use frsqrt1 type.
(mips_rsqrt2_<fmt>): Use frsqrt2 type.
(mips_recip1_<fmt>): Use frdiv1 type.
(mips_recip2_<fmt>): Use frdiv2 type.
* config/mips/mips.md (type): Add frdiv1, frdiv2, frsqrt1, frsqrt2.
* config/mips/sb1.md (ir_sb1_fpu_2pipes, ir_sb1_fpu_1pipe): Add frdiv1
and frsqrt1.
(ir_sb1_fpu_step2_2pipes, ir_sb1_fpu_step2_1pipe): New.

From-SVN: r87050