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Re: Semi-Latent Bug in tree vectorizer


On Fri, 2005-04-08 at 13:26, Devang Patel wrote:
> On Apr 8, 2005, at 10:08 AM, Jeffrey A Law wrote:
> 
> > On Fri, 2005-04-08 at 13:04 -0400, Daniel Berlin wrote:
> >>> When we rescan the operands, we get a different set of V_MAY_DEFS,
> >>> specifically we lose the V_MAY_DEF for SFT.3_20.
> >>
> >> Why?
> >>
> >> It should be copying subvars to the new vectorizer variable too.
> >> At least, i believe i added that.
> > Where would I look for that code?  I'm totally unfamiliar with the
> > vectorizer code.
> 
> finalize_ssa_stmt_operands () copy V_MAY_DEFS from old v_may_defs
> vector. I do not see update_stmt() in my copy of check-out.
> You probably meant modify_stmt(). Otherwise I am not up to date on this.


modify_stmt() is gone with the integration of immediate_uses, and
update_stmt() is the new routine which causes an operands scan
immediately.  

Effective earlier this week.

Andrew


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