https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007
Bug ID: 78007 Summary: Important loop from 482.sphinx3 is not vectorized Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: ysrumyan at gmail dot com Target Milestone: --- The issue is related to missing support for __builtin_bswap32: t1.c:9:3: note: function is not vectorizable. t1.c:9:3: note: not vectorized: relevant stmt not supported: _13 = __builtin_bswap32 (load_dst_8); Simple reproducer is attached.