This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Abt RTL expression - Optimization
- From: Andrew Pinski <pinskia at gmail dot com>
- To: Rohit Arul Raj <rohitarulraj at gmail dot com>
- Cc: gcc at gcc dot gnu dot org, ERES at il dot ibm dot com
- Date: Mon, 23 Oct 2006 08:32:15 -0700
- Subject: Re: Abt RTL expression - Optimization
- References: <c356fd4e0610230344w31f5adb3vd9990558d749a331@mail.gmail.com>
On Mon, 2006-10-23 at 16:14 +0530, Rohit Arul Raj wrote:
> Hi all,
>
> This small bit of code worked fine with all optimization except Os.
If you are working with 4.0 and greater, there are optimizations that
happen before RTL, called the Tree-ssa optimizations. The optimization
you are noticing here is called forward propagation.
Thanks,
Andrew Pinski