[Bug c/114659] gcc miscompiles a __builtin_memcpy on i386, leading to wrong results for SNaN

[bruno at clisp dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114659

--- Comment #4 from Bruno Haible <bruno at clisp dot org> ---
Related: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58416