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* [Bug c/79217] Feature request: high half of an integer multiplication [not found] <bug-79217-4@http.gcc.gnu.org/bugzilla/> @ 2021-08-07 5:50 ` pinskia at gcc dot gnu.org 2024-04-03 17:27 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 2+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-08-07 5:50 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79217 --- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to H. Peter Anvin from comment #5) > b) it seems likely that getting __intN where N > CHAR_BIT*sizeof(uintmax_t) > into a standard would be very hard, and thus would not be possible to > standard-track (although it could be used as an implementation on gcc using > a header inline, of course.) I saw a proposal for C23 (I think it was C23) for arbitrary bit size integers. I don't know if that included big integers either. ^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c/79217] Feature request: high half of an integer multiplication [not found] <bug-79217-4@http.gcc.gnu.org/bugzilla/> 2021-08-07 5:50 ` [Bug c/79217] Feature request: high half of an integer multiplication pinskia at gcc dot gnu.org @ 2024-04-03 17:27 ` pinskia at gcc dot gnu.org 1 sibling, 0 replies; 2+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-04-03 17:27 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79217 --- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #6) > I saw a proposal for C23 (I think it was C23) for arbitrary bit size > integers. I don't know if that included big integers either. It does and _BitInt(128) is supported on x86 (both 32 and 64 bit) in GCC 14. aarch64 (Little-endian only) is adding support too and should be included in GCC 14. I think arm will be adding it for GCC 15 though. I am not 100% sure but I suspect _BitInt support satisfies this request here. ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2024-04-03 17:27 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <bug-79217-4@http.gcc.gnu.org/bugzilla/> 2021-08-07 5:50 ` [Bug c/79217] Feature request: high half of an integer multiplication pinskia at gcc dot gnu.org 2024-04-03 17:27 ` pinskia at gcc dot gnu.org
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