https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103980
--- Comment #8 from Ryan <rmaguire314 at gmail dot com> --- (In reply to Andrew Pinski from comment #7) > It might be the case Wdouble-promotion is just useless on s390 if you > configure your compiler with --enable-s390-excess-float-precision which was > only added for GCC11, so basically between GCC 7 and GCC 10.x, the default > was to promote all float to double for s390. It still seems odd that the warning is only produced when the -std flag is set, and only when comparisons are made.
