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Re: [v3] libstdc++/12854

From: Diego Novillo <dnovillo at redhat dot com>
To: Benjamin Kosnik <bkoz at redhat dot com>
Cc: Gabriel Dos Reis <gdr at integrable-solutions dot net>, libstdc++ at gcc dot gnu dot org, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Jason Merrill <jason at redhat dot com>
Date: Tue, 18 May 2004 10:22:30 -0400
Subject: Re: [v3] libstdc++/12854
Organization: Red Hat Canada
References: <20040515172631.6868c1fd.bkoz@redhat.com> <m37jvdc7r3.fsf@uniton.integrable-solutions.net> <20040517085218.71566d3b.bkoz@redhat.com>

On Mon, 2004-05-17 at 09:52, Benjamin Kosnik wrote:

> I was under the impression that tree-ssa would scalarize even C++
> objects with 2-8 members. I've asked rth for clarification, but maybe
> jason would know this too.
> 
Currently we only scalarize up to MAX_FIELDS_FOR_SRA fields (5, it
should be a --param).  The criteria used to decide whether or not to
scalarize is in tree-sra.c:can_be_scalarized_p.  Essentially, we will
not scalarize: variables that must live in memory, volatiles, structures
that have other non-aggregates or complex types (to be fixed),
structures with bitfields (to be fixed).


Diego.

References:
- [v3] libstdc++/12854
  - From: Benjamin Kosnik
- Re: [v3] libstdc++/12854
  - From: Gabriel Dos Reis
- Re: [v3] libstdc++/12854
  - From: Benjamin Kosnik

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