https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63917
Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fxcoudert at gcc dot gnu.org --- Comment #8 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- (In reply to Zhenqiang Chen from comment #3) > Root cause: r217646 enhances ifcvt to handle cbranchcc4 instruction. But > ifcvt does not check whether an insn will clobber CC or not, when moving it > before the cbranchcc4 instruction. This is a clear and important regression, miscompiling real-life code. Can we get this fixed, or should we ask to revert 217646 until this is fixed?