This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Replacing bitmap.[ch]
- To: Richard Henderson <rth at redhat dot com>
- Subject: Re: Replacing bitmap.[ch]
- From: law at redhat dot com
- Date: Tue, 24 Jul 2001 17:12:39 -0600
- cc: Daniel Berlin <dan at cgsoftware dot com>, gcc at gcc dot gnu dot org
- Reply-To: law at redhat dot com
In message <20010724160429.A18916@redhat.com>you write:
> On Tue, Jul 24, 2001 at 02:01:38AM -0400, Daniel Berlin wrote:
> > XOR is only used in one place, in flow.c and it's in a verification funct
> ion
> > (verify_local_live_at_start).
>
> Either XOR is need, or you need to provide an alternative way
> for me to get at the same information for that function.
>
> In verify_local_live_at_start we are expecting set A == set B,
> and if they aren't equal, we need to find all the bits that
> are different and validate the changes that occurred.
>
> Removing NOT and IOR_COMPL make sense, especially if they aren't used.
But sbitmap_not is used in gcse & lcm
jeff