This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: [ tree-ssa] PRE problem
- From: law at redhat dot com
- To: Daniel Berlin <dberlin at dberlin dot org>
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 20 Feb 2004 11:33:23 -0700
- Subject: Re: [ tree-ssa] PRE problem
- Reply-to: law at redhat dot com
In message <760713BF-63D0-11D8-ABAD-000A95DA505C@dberlin.org>, Daniel Berlin wr
ites:
>
>On Feb 20, 2004, at 12:44 PM, law@redhat.com wrote:
>
>> (for example, copy propagation when the two objects have different
>> memory tags).
>
>I should also note that if this is true, something else is broken.
>Things appearing on either side of an assignment are supposed to have
>the same memory tag.
In the problematic PHI node, one object has a memory tag, one does not.
I'll look earlier and see if something else has mucked things up.
jeff