Saga of m68k PIC continues

Peter Barada pbarada@mail.wm.sps.mot.com
Thu Dec 12 13:50:00 GMT 2002


While looking at the PIC code, I'm wondering if there is a way to
suppress setting up the global_table register if:

1) the funciton is static
2) the function's address is not taken
3) the function is a leaf.

If so then:
	lea (%pc, _GLOBAL_OFFSET_TABLE_@GOTPC), %a5

doesn't need to be done in the function prologue since all callers to
the function have already setup %a5.  As long as the function doesn't
modify %a5, everthing should just work...

-- 
Peter Barada                                   Peter.Barada@motorola.com
Wizard                                         781-852-2768 (direct)
WaveMark Solutions(wholly owned by Motorola)   781-270-0193 (fax)



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