On Fri, Aug 13, 2021 at 11:15:21AM -0400, David Edelsohn wrote: > On Fri, Aug 13, 2021 at 10:49 AM Segher Boessenkool > <seg...@kernel.crashing.org> wrote: > > > > On Fri, Aug 13, 2021 at 12:14:14AM -0400, Michael Meissner wrote: > > > I noticed that the xxeval built-in function used the > > > altivec_register_operand > > > predicate. Since it takes vsx registers, this might force the register > > > allocate to issue a move when it could use a traditional floating point > > > register. This patch fixes that. > > > > Why register_operand instead of gpc_reg_operand? The former allows > > subregs of memory, likely not what you want here (and not in other > > rs6000 pattern that currently use it, either). > > Because it's consistent with the other patterns.
Not with the vast majority of other patterns, no. > We can investigate converting all of the patterns to gpc_reg_operand > as a separate issue. Of course. Segher
