builtin_constant_p

Richard Henderson rth@cygnus.com
Thu Jun 25 02:32:00 GMT 1998


On Wed, Jun 24, 1998 at 01:39:05PM -0700, Richard Henderson wrote:
> > I'd suggest we try it, and see what kinds of problems show up, keeping in
> > mind that we may need to make further changes.  I suspect that fixing
> > CONSTANT_P will handle the vast majority of the cases, and that the rest
> > won't be important enough to worry about.
> 
> Ok, I'll get a new patch out this evening.

As promised.

Speaking of problems that might show up, I built glibc this evening
and discovered that the Alpha didn't have predicates that would match

  (set (reg) (constant_p ...))

I went ahead and added it everywhere in the Alpha backend.  Others
will have similar problems if they ignore CONSTANT_P.


r~


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