On Thu, Aug 25, 2022 at 09:56:18PM +0200, Jakub Jelinek wrote: > On Thu, Aug 25, 2022 at 03:23:12PM -0400, Michael Meissner wrote: > > On Mon, Aug 15, 2022 at 12:12:02PM +0200, Jakub Jelinek via Gcc-patches > > wrote: > > > Hi! > > > > > > The following patch implements a new builtin, __builtin_issignaling, > > > which can be used to implement the ISO/IEC TS 18661-1 issignaling > > > macro. > > > > I haven't looked in detail at the patch, but from the description I think it > > needs a way for machine dependent parts to optimize this for a given mode > > when > > various switches are used. > > There is an optab which takes priority over the generic code. > So if you have something better than the generic expansion, feel free to add > the named pattern(s). > Currently it is used just on x86 for xf mode.
That is good to know. When I looked into before, I didn't notice there was an optab for the case. -- Michael Meissner, IBM PO Box 98, Ayer, Massachusetts, USA, 01432 email: meiss...@linux.ibm.com
