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Re: [ tree-ssa] PRE problem
- From: law at redhat dot com
- To: Diego Novillo <dnovillo at redhat dot com>
- Cc: Daniel Berlin <dberlin at dberlin dot org>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: Fri, 20 Feb 2004 14:32:55 -0700
- Subject: Re: [ tree-ssa] PRE problem
- Reply-to: law at redhat dot com
In message <1077310216.3169.210.camel@localhost.localdomain>, Diego Novillo wri
tes:
>On Fri, 2004-02-20 at 15:31, law@redhat.com wrote:
>
>> It must be Friday... Time to get away and recharge.
>>
>So that you feel better, a checking-enabled bootstrap just ICE'd in
>propagate_copy trying to build strstream.cc. :)
I don't think may_propagate_copy needs/should be checking the decl_hard_reg
or occurs_in_abnormal_phi stuff for virtual operands. It just doesn't make
any sense and gets in the way of doing useful stuff in the optimizers.
I think we'll just want to do the memory tag test for virtuals.
jeff