Semi-Latent Bug in tree vectorizer

[Andrew Pinski]

On Apr 8, 2005, at 1:26 PM, 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.

update_stmt was just added a couple of days again and it replaces
modify_stmt.

Thanks,
Andrew Pinski