[Bug target/115966] [15 Regression] Miscompilation of 403.gcc with -Ofast -march=native on x86_64

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115966

--- Comment #4 from Filip Kastl <pheeck at gcc dot gnu.org> ---
My last known to work is r15-1566-gfd536b8412d4da.

And yes, -no-ext-dce does fix the issue!