https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44382
acsawdey at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |acsawdey at gcc dot gnu.org --- Comment #11 from acsawdey at gcc dot gnu.org --- 236043 adds rs6000_reassociation_width() to enable parallel reassociation for ppc64/ppc64le with -mcpu=power8. The width is picked to be a balance between something wide enough to exploit the core resources but not so wide that we generate a lot of excess spills. SPEC 2006 int is pretty neutral but fp sees some gains, largely because lbm gets a big improvement from this.