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Re: nozero
- To: Joern Rennecke <amylaar at cygnus dot co dot uk>
- Subject: Re: nozero
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Fri, 21 Jan 2000 02:17:02 -0700
- cc: gcc at gcc dot gnu dot org
- Reply-To: law at cygnus dot com
In message <200001202140.VAA13293@phal.cygnus.co.uk>you write:
> Found in alias.c:
>
> /* Returns MEM1 if and only if MEM1 is a scalar at a fixed address and
> MEM2 is a reference to a structure at a varying address, or returns
> MEM2 if vice versa. Otherwise, returns NULL_RTX. If a non-NULL
> value is returned MEM1 and MEM2 can never alias. VARIES_P is used
> to decide whether or not an address may vary; it should return
> nozero whenever variation is possible. */
>
> static rtx
> fixed_scalar_and_varying_struct_p (mem1, mem2, varies_p)
>
> AFAIK we generally talk about 'nonzero', so 'nozero' is probably a typo?
I think you're correct. Can you please fix this comment? No need to wait
for an approval.
Thanks,
jeff