https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82692
--- Comment #9 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Segher Boessenkool from comment #8) > Maybe you can handle this in can_change_dest_mode? That will catch > the similar cases, too. No, because we only have to prevent CCmode changes that apply to FP operands. can_change_dest_mode only looks at mode changes, but CCFPmode and CCFPUmode are x86 specific. I have looked at other SELECT_CC_MODE changes, and they deal with propagation of compares into arithmetic operations. This is the only place that can change CCmode of FP compares.
