https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71231
Bug ID: 71231 Summary: [7 Regression]: 300% runtime increase for rnflow Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: regression Assignee: unassigned at gcc dot gnu.org Reporter: ubizjak at gmail dot com Target Milestone: --- As seen in [1], there is 300% runtime increase in PH11 rnflow testcase happening from around 19. May onward. 160516.34236259 ... 48.67 160517.34236301 ... 48.68 160518.25236346 ... -1.00 160519.34236434 ... 155.92 160520.34236491 ... 153.29 160521.34236549 ... 154.85 160522.34236559 ... 154.38 Can please someone run a regression hunt for this testcase to find the offending commit? With such a regression, it will be fairly easy to find it with an automated bisection. [1] http://gcc.opensuse.org/c++bench/pb11/pb11-summary.txt-2-0.html