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Re: [tree-ssa]: out-of-ssa breaks if something adds a pred
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Andrew Macleod <amacleod at redhat dot com>
- Cc: Chris Lattner <sabre at nondot dot org>, Daniel Berlin <dberlin at dberlin dot org>, gcc mailing list <gcc at gcc dot gnu dot org>
- Date: 06 Jun 2003 16:40:32 -0400
- Subject: Re: [tree-ssa]: out-of-ssa breaks if something adds a pred
- Organization: Red Hat Canada
- References: <Pine.LNX.4.44.0306061529570.18201-100000@nondot.org> <1054931886.31061.153.camel@p4>
On Fri, 2003-06-06 at 16:38, Andrew MacLeod wrote:
> Oh, you mean xhanging the incoming edge if we split?. If we have the
> above PHI, and we insert the same stmt on the edge from block 3, and we
> create BB 8, then the PHI node needs to be updated to read:
>
Yup. But Dan's example was showing that the edge splitter seems to be
adding a third edge into the block. That can't be right.
Diego.