pa.md (smin, [...]): New patterns.
* pa.md (smin, umin, smax, umax): New patterns.
* pa.md (cbranch define_delay): Enable nullification of
conditional branch delay slots (based upon branch direction).
(conditional branch patterns): Call output_cbranch to get the
correct output template. Long conditional branches with an
annulled delay slot have a length of 3.
(branch on bit patterns): Call output_bb to get the correct
output template. Long branches with an annulled delay slot have
a length of 3.
(decrement and branch pattern): Handle nullification of long
From-SVN: r3906