https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68654
Bug ID: 68654 Summary: [6 Regression] CoreMark Pro performance degradation Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: afomin.mailbox at gmail dot com CC: izamyatin at gmail dot com, law at redhat dot com Target Milestone: --- Target: i686-*-* After r228668 we can see a performance degradation in CoreMark Pro benchmark compiled with -m32 -Ofast -funroll-loops for Haswell CPU.