[Bug c/94658] Incorrect transformation with -fstrict-aliasing

[pascal_cuoq at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94658

--- Comment #1 from Pascal Cuoq <pascal_cuoq at hotmail dot com> ---
Clang bug for the same optimization in Clang 10 filed at
https://bugs.llvm.org/show_bug.cgi?id=45607