Add ops_num to targetm.sched.reassociation_width hook

Richard, So, I’m noticing that in get_reassociation_width() we know how many ops (ops_num) are in the expression being considered for parallel reassociation, but this is not passed to the target hook. In my testing this seems like it might be useful to have. If you determine the maximum width t

Re: Avoiding truncate/sign-extend of POImode on ppc target

Meant to CC a few people, oops. Aaron Sawdey, Ph.D. saw...@linux.ibm.com IBM Linux on POWER Toolchain > On Sep 2, 2020, at 9:22 AM, Aaron Sawdey via Gcc wrote: > > > PR96791 is happening because DSE is trying to truncate a > POImode reg down to DImode. The POImode

Avoiding truncate/sign-extend of POImode on ppc target

PR96791 is happening because DSE is trying to truncate a POImode reg down to DImode. The POImode is created by a structure copy that gets inline expanded using lxvp/stxvp which we have defined using POImode. DSE recognizes that a following load overlaps with the stxvp and can be satisfied by a tr