[Bug target/109132] Apple M1 floating point bug when optimizing

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109132

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
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 ...