https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118166
--- Comment #4 from Gero ---
Changing the register sets is of course a problem. But u/int128 could also be
realized in xmm ?
- Addition/subtraction can be implemented efficiently (see attachemant).
- For multiplications/shl/shr/... this should a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118166
--- Comment #3 from Gero ---
Created attachment 59973
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59973&action=edit
addsub_128
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118166
Bug ID: 118166
Summary: simple bit operations for __int128 do not use vector
operations/registers
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: n
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118038
--- Comment #9 from Gero ---
Hi Andrew,
I would like to provide future function
(https://en.cppreference.com/w/c/experimental/fpext1) in C++ and/or improve
existing functions that are not up to standard.
Leterem also includes your quadmath::nanq
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118038
--- Comment #7 from Gero ---
Hello Andrew,
Ok. Could you give me a solution that I can use? Various attempts on my part
have so far been unsuccessful.
thx
Gero
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118038
--- Comment #5 from Gero ---
Hello Andrew,
Thanks for your answers. However, I don't understand exactly what this has to
do with PR 104522.
bit_cast should only do the bit conversion and not worry about other
sensitivities. Whether the results
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118038
Bug ID: 118038
Summary: constexpr std::bit_cast with long double/float80_t
does not work
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
