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] Improve ix86 machine reorg (PR target/39942, take 2, part 2)


Jakub Jelinek wrote:
Here is an updated patch for the rest, I've noted a couple of issues with
the patch from April.  I'm also attaching an awk script
(objdump -d cc1plus | ~/test4jmp.awk) which I've used for verification.
Both without and with the patch there are a few hits, meaning the algorithm
had and still has issues (especially for -fprofile-use), but at least
this patch (nor the other patch I've sent a few minutes ago) causes
significant regressions.

Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

Should this go on the 4.3/4.4 as well? Seemed to make quite a difference when I tried it with 4.3.


Bernd -- This footer brought to you by insane German lawmakers. Analog Devices GmbH Wilhelm-Wagenfeld-Str. 6 80807 Muenchen Sitz der Gesellschaft Muenchen, Registergericht Muenchen HRB 40368 Geschaeftsfuehrer Thomas Wessel, William A. Martin, Margaret Seif


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