https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79252
Bug ID: 79252 Summary: Improve code generation of vec_insert on PowerPC ISA 2.07 (i.e. power8) Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: meissner at gcc dot gnu.org Target Milestone: --- On PowerPC compiles with -mcpu=power8, if you do a vec_insert on vector types that have 8, 16, or 32-bit element sizes (i.e. char, short, int, float) with a constant element number, we generate a vector store, element store, and vector load instead of using a series of instructions instead of generating a store-hit-load event.