https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34678
--- Comment #40 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #39) > (In reply to Richard Biener from comment #36) > > Created attachment 46396 [details] > > poor mans solution^Whack ^^^^ > How does this work if op is a SSA_NAME? it doens't, the patch has to be fixed to create a new def and adjust all uses which isn't possible here (no immediate uses). It's a proof-of-concept hack - the SSA name issue means we have to find a better place for such hack. Note I don't think we should go with this kind of hack, iff, then we should at least not use an ASM but some special __IFN and a more appropriate construct on the RTL side (not sure what that would be).
