https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78406
Bug ID: 78406 Summary: Crafty v23.4 is 20% slower under GCC 6.2 than under Clang 3.9 Product: gcc Version: 6.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: t.artem at mailcity dot com Target Milestone: --- http://www.phoronix.com/scan.php?page=article&item=gcc-clang-kblclear&num=4 GCC 6.2.0 - 95 seconds Clang 3.9.0 - 78 seconds GCC options: -lstdc++ -lm CPU: Kaby Lake 7200U (the same CPU core as Sandy Bridge)