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Re: PATCH, rs6000 (alpha?) long const

Richard Henderson wrote:

> On Sat, Dec 29, 2001 at 09:22:23AM -0600, Tom Rix wrote:
> > Looks like alpha also uses this logic.  Can someone familar with alpha
> > comment on the old logic's correctness?
>
> The 'L' constraint is for exactly this sort of constant.  This
> is supported by the "ldah" insn on alpha, and "addis" on ppc64.
>

Yes.  The internal errors complained about not meeting the insn's 'L'
contraint.   In the case I looked at,  rs6000_emit_set_long_const was
called from rs6000_emit_allocate_stack, via try_split.    I believe the
usual contraint checking is bypassed and was worried alpha would have the
same problem.

Tom

>
> r~

--
Tom Rix
GCC Engineer
trix@redhat.com
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