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Re: [PR tree-optimization/20640] add phi args to dests ofdce-redirected edges


On Thu, 2005-03-31 at 05:26 -0300, Alexandre Oliva wrote:
> On Mar 31, 2005, Alexandre Oliva <aoliva@redhat.com> wrote:
[ ... ]
> Anyway, how does this patch look?
> Index: gcc/ChangeLog
from  Alexandre Oliva  <aoliva@redhat.com>

        PR tree-optimization/20640
        * tree-ssa-dce.c (remove_dead_stmt): Don't redirect edge to
        post-dominator if it has phi nodes.
        (eliminate_unnecessary_stmts): Remove dead phis in all blocks
        before dead statements.
BTW, if you want to go forward with this version, it looks OK to me
assuming it passes bootstrapping and regression testing.

Jeff



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