[cfe-dev] [LLVMdev] [3.6 Release] RC3 has been tagged

[Hans Wennborg]

On Tue, Feb 17, 2015 at 11:47 AM, Jack Howarth
<howarth.mailing.lists at gmail.com> wrote:
>     We probably ought to open a meta-bug for all of these new
> performance regressions introduced in 3.6.

Feel free to open one. The important thing is whether anyone is
investigating the bugs, though.

> The 20% performance
> regression observed in the "8 queens puzzle" solver example
> (http://llvm.org/bugs/show_bug.cgi?id=22058) doesn't seem to be
> introduced by either the r217953 or r222451 commits. I'll try to do a
> regression hunt later this week to pin down the offending commit for
> that regression. Likewise, the reported regression in the -m32
> performance of the sudoku solver example (reported in
> http://llvm.org/bugs/show_bug.cgi?id=22589) doesn't match up to those
> two commits either (but I suspect a register pressure issue since it
> only shows up at 32-bit).
>      Jack
> ps Do we have a complete set of benchmark results for current 3.6svn
> vs 3.5.1 posted anywhere?

Not that I know. There are test results going into the LNT tool at
http://llvm.org/perf, but I'm not really familiar with that and also
don't think it makes it easy to do comparisons between releases.

 - Hans