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Re: optimization/9279: [3.2 regression] [Sparc] combine bug
- From: Matthias Klose <doko at cs dot tu-berlin dot de>
- To: Eric Botcazou <ebotcazou at libertysurf dot fr>
- Cc: ebotcazou at gcc dot gnu dot org, frank at g-n-u dot de, gcc-bugs at gcc dot gnu dot org, gcc-gnats at gcc dot gnu dot org, gdosreis at sophia dot inria dot fr
- Date: Tue, 28 Jan 2003 21:46:25 +0100
- Subject: Re: optimization/9279: [3.2 regression] [Sparc] combine bug
- References: <20030127170535.22652.qmail@sources.redhat.com><200301271847.21157.ebotcazou@libertysurf.fr>
Eric Botcazou writes:
> > The fix introduces a performance regression for PowerPC (and possibly
> > other platforms) on the 3.2 branch.
>
> Now reverted for this reason on the 3.2 branch so GCC 3.2.2 will ship with
> the bug.
I see you having the choice between two regressions, one performance
regression (from 3.2.1 to 3.2.2) and one "wrong code" regression (from
2.95 and 3.0.4 to 3.2.2). Not sure, if I should like your decision.
Matthias