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Re: Fix PR tree-optimization/25809
- From: "H. J. Lu" <hjl at lucon dot org>
- To: Daniel Berlin <dberlin at dberlin dot org>
- Cc: "gcc-patches >> GCC Patches" <gcc-patches at gcc dot gnu dot org>
- Date: Mon, 16 Apr 2007 10:08:01 -0700
- Subject: Re: Fix PR tree-optimization/25809
- References: <4aca3dc20704161002i3a367facxdca2eac963dc0d12@mail.gmail.com>
On Mon, Apr 16, 2007 at 10:02:52AM -0700, Daniel Berlin wrote:
> In PR 25809, it was requested that PRE perform cast motion to move
> invariant casts out of loops, apparently to help vectorization and
> other things.
>
> This patch does that.
>
> I have no idea whether it helps or hurts SPEC. If someone tells me
> this ends up not being a win, i'm happy to revert it and mark the bug
> WONTFIX :)
>
I will check it out for SPEC CPU 2K and 2006.
H.J.