https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Florian Weimer from comment #2) > In the actual code (sysdeps/ieee754/dbl-64/branred.c) r is a local variable. > Would it possible to increase its alignment automatically? That's obviously > not possible with an extern variable. It makes no differences when r and b are 32-byte aligned.