https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88856
--- Comment #14 from Andreas Krebbel <krebbel at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #11) > ... Can't what you are doing in the splitters be done in > define_peephole2 instead? Not that easy unfortunately. peephole2 will run after reload. So the FP constant ok 0.0 will already be reloaded into a register first or pushed into literal pool. The point of doing the transformation is to avoid this.
