https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80697
Bug ID: 80697 Summary: On PowerPC, the spec 2006 benchmark milc had a 5.6% regression under GCC 7.1 compared to GCC 6.3. Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: meissner at gcc dot gnu.org Target Milestone: --- After GCC 7.1 came out, I ran the spec 2006 benchmark suite. The milc benchmark had a 5.6% regression with GCC 7.1 compared to GCC 6.3. In particular, the function mult_adj_su3_mat_vec was 48% slower with GCC 7.1 compared to GCC 6.3.