https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109132
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #1) > ubuntu@ubuntu:~\# ~/upstream-gcc/bin/gcc t.c -O2 -ffp-contract=off > ubuntu@ubuntu:~\# ./a.out > 0x1.2eab1ep-2 0x0p+0 > ubuntu@ubuntu:~\# ~/upstream-gcc/bin/gcc t.c -O2 > ubuntu@ubuntu:~\# ./a.out > 0x1.2eab1ep-2 0x1.1b990cp-29 > > > > NOT a bug. the use of FMA increases precission here ... Note this was done on aarch64-linux-gnu with a GCC built from 20230310.
