messy combine problem - PPC

Richard Henderson rth@redhat.com
Mon Dec 3 18:27:00 GMT 2001


On Mon, Dec 03, 2001 at 03:53:12PM -0800, Zack Weinberg wrote:
> I'll try this, but will it inhibit desirable optimizations?

No.

> > Also, that should really be using regs_invalidated_by_call rather
> > than call_used_regs.  Not that it'll make too much difference, 
> > since we don't do a whole lot of combining with fixed registers.
> 
> Huh?

       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
-        if (call_used_regs[i])
+	 if (TEST_HARD_REG_BIT (regs_invalidated_by_call, i))



r~



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