[Bug target/59371] [4.8/4.9 Regression] Performance regression in GCC 4.8 and later versions.

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59371

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
   Target Milestone|---                         |4.8.3
            Summary|Performance regression in   |[4.8/4.9 Regression]
                   |GCC 4.8 and later versions. |Performance regression in
                   |                            |GCC 4.8 and later versions.

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The IVOPTs dump looks different on x86_64, it looks like 4.7 was able to do
a better job here.

Can you provide a runnable testcase so we can see if x86_64 regressed
in speed as well?