[COMMITTED] hppa: Improve PIC pc-relative instruction sequences

[John David Anglin]

The priority level of user code on PA-RISC is always 3.  The "depi" instruction used to clear the priority
level saved in the link register can be eliminated by adjusting the offsets of the following $PIC_pcrel$
instructions.

Tested with no observed regressions.  Committed to trunk.

Dave
--
John David Anglin	dave.anglin@bell.net


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