Hi DJ,
OK to apply ?
Ok, but...
Thanks - committed.
- if (regno == FRAME_POINTER_REGNUM && frame_pointer_needed)
+ if (regno == FRAME_POINTER_REGNUM
+ && (frame_pointer_needed || df_regs_ever_live_p (regno)))
Do we want regs_ever_live or regs_ever_written_to ? I seem to recall
changing a port... mep perhaps... to only save registers that are
changed, not registers that are used but read-only.
You are right, we would only need to save the FP if it is written to,
but I could not find a regs_ever_written_to, or something similar. At
least the current version of the patch will still work though, even if
there is a needless save/restore of the FP.
Cheers
Nick
