------- Comment #22 from dberlin at gcc dot gnu dot org 2008-11-23 18:30
-------
Subject: Re: missed fully redundant expression
Sinking fits into the reverse framework.
Apparently the SSUPRE person plans on submitting when 4.5 opens, and
you can fit sinking frameworks into there.
On Sun, Nov 23, 2008 at 8:43 AM, rguenth at gcc dot gnu dot org
<[EMAIL PROTECTED]> wrote:
>
>
> ------- Comment #20 from rguenth at gcc dot gnu dot org 2008-11-23 13:43
> -------
> We also need to make sure not to do hoisting where we should do sinking like
> for
>
> int foo(int b, int i)
> {
> int res;
> if (b)
> res = i + 1;
> else
> res = i + 1;
> return res;
> }
>
> (add some more code that shows the increased life-range of res would hurt)
>
> I guess sinking doesn't really fit the PRE framework.
>
>
> --
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23286
>
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--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23286
