From: Paul Richard Thomas <paul.richard.thomas@gmail.com>
To: Tobias Burnus <burnus@net-b.de>
Cc: fortran@gcc.gnu.org, gcc-patches <gcc-patches@gcc.gnu.org>
Subject: Re: [Patch, fortran] PR4773 - [4.6 Regression] Unnecessary temporaries increase the runtime for channel.f90 by ~70%
Date: Mon, 12 Jul 2010 12:23:00 -0000 [thread overview]
Message-ID: <AANLkTikOBcAtConRQlgKcBOyW8uzsUI4ocKAhGyjrd9_@mail.gmail.com> (raw)
In-Reply-To: <4C3AC918.5080701@net-b.de>
Dear Tobias,
> I was wondering whether one should add a test case (-Warray-temporaries).
That's not a bad idea. I was very reluctant to add any more testcases
that test the tree-dump-original output. They tend to be a complete
pain in the behind from the maintenance point of view. Will do!
>
> OK for the trunk - and for the branches, for which the array-temporary
> fix has been applied to.
I have gone back to 4.4. In the latter, I applied the array-temporary
fix as well. For some reason, applying the overall patch to 4.3
throws up a number of very strange looking regressions. I am inclined
to close the book on this if I cannot see a quick fix tonight. As I
say elsewhere, the underlying bug has been present in gfortran for
about ten years and it has only emerged now!
Thanks
Paul
prev parent reply other threads:[~2010-07-12 12:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-09 15:04 Paul Richard Thomas
2010-07-12 7:49 ` Tobias Burnus
2010-07-12 12:23 ` Paul Richard Thomas [this message]
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