https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54000
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Known to work| |4.9.0
Resolution|--- |FIXED
Target Milestone|4.8.5 |4.9.0
Summary|[4.8/4.9 Regression] |[4.8 Regression]
|Performance breakdown for |Performance breakdown for
|gcc-4.{6,7} vs. gcc-4.5 |gcc-4.{6,7} vs. gcc-4.5
|using std::vector in matrix |using std::vector in matrix
|vector multiplication |vector multiplication
|(IVopts / inliner) |(IVopts / inliner)
--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> ---
Timing-wise GCC 4.9 looks good as well. With GCC 4.8 the testcase takes
2:30 to execute while with 4.9 1:09 and with GCC 5 finally 1:06. GCC 4.9
also chooses a single IV for the innermost loop.
Declaring fixed.
