https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90209
--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> --- Try with -fno-signed-zeros.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90209
--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> --- Try with -fno-signed-zeros.