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Re: [PATCH] Fix PR 177757, ICE in fold


On Fri, 2004-10-01 at 12:46, Andrew Pinski wrote:
> On Oct 1, 2004, at 2:30 PM, Jeffrey A Law wrote:
> 
> > On Fri, 2004-10-01 at 12:21, Andrew Pinski wrote:
> >> The problem here is that we are using an already released as we have 
> >> not
> >> rewritten it back into SSA because jump threading does not keep the 
> >> SSA
> >> information up to date.  This patch just works around the issue but 
> >> the
> >> correct fix would be rewrite jump threading (but that is not going to
> >> happen for 4.0.0, see previous discussions about it for more
> >> information).
> >> We set the variable of the SSA_NAME back but not the type which is 
> >> what
> >> this patch does.
> > When/how are we using the released name.  Details please.
> 
> Looks like ssa_into_ssa is going wrong somewhere.
Again, details please.  You've provided nowhere near enough 
information to determine if your patch is a reasonable approach
to fix the problem or not.

jeff



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