This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [Patch ARM] Turn on hot cold partitioning ?


On Wed, Oct 1, 2014 at 10:03 AM, Christian Bruel <christian.bruel@st.com> wrote:
> Hi Ramana,
>
> Your patch https://gcc.gnu.org/ml/gcc-patches/2012-02/msg01492.html
> seems to have not been applied for 4.10. Are there any stoppers or is it
> an omission ?

Short answer, no, not an omission.  It could not be made to work
properly for a few reasons. When I continued with it the problem I was
hitting was the assumption that you can branch anywhere. IIRC using an
indirect branch wasn't possible because you couldn't find enough
registers because of pass ordering issues.

Matthew Gretton-Dann and Christophe Lyon at Linaro worked on it for
sometime and they hit other problems. There are probably enough mails
in the archive to document this history.

regards
Ramana


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]