https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112547
Bug ID: 112547 Summary: 9% exec time regression of 462.libquantum SPEC on AMD zen4 CPU Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: fkastl at suse dot cz Target Milestone: --- Host: x86_64-linux Target: x86_64-linux As seen here https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=956.210.0 between commits g:53010f6ff6dfbf7b (2023-11-05 02:42) and g:1a55724f7870719d (2023-11-06 02:27) there is about 9% slowdown of execution time of the 2006SPEC 462.libquantum. The test is run with -O2 and lto on an amd zen4 machine.