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Re: [lto] Merge types read from different TUs

From: Diego Novillo <dnovillo at google dot com>
To: Richard Guenther <richard dot guenther at gmail dot com>
Cc: gcc-patches at gcc dot gnu dot org, Simon Baldwin <simonb at google dot com>
Date: Thu, 26 Mar 2009 13:53:31 -0400
Subject: Re: [lto] Merge types read from different TUs
References: <20090317133039.GA30231@google.com> <b798aad50903260757p567477eepb5baca356a201746@mail.gmail.com> <84fc9c000903260842p16ecfce4te330cd92bf8f784@mail.gmail.com>

On Thu, Mar 26, 2009 at 11:42, Richard Guenther
<richard.guenther@gmail.com> wrote:

> I think this is the only sensible thing we can do cross TU and
> even more so cross language.

Agreed.

Merging types by structural identity also causes large savings in
memory footprint.  In one case, it was saving over 1Gb worth of type
information.  Not all the savings were due to different type names
mashed into one though.  Rather the aggregate type merging pass was
saving all that much.

Diego.

References:
- [lto] Merge types read from different TUs
  - From: Diego Novillo
- Re: [lto] Merge types read from different TUs
  - From: Diego Novillo
- Re: [lto] Merge types read from different TUs
  - From: Richard Guenther

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