[Bug rtl-optimization/31485] C complex numbers, amd64 SSE, missed optimization opportunity

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=31485

--- Comment #24 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Bugzilla is not the right place to educate users.  Of course the C FE_*
exceptions map to real hardware exceptions, on x86 read e.g. about MXCSR
register and in the description of each instruction on which Exceptions it can
raise.