> 2015-01-23 Robert Suchanek <robert.sucha...@imgtec.com> > > * config/mips/mips.c (mips_hard_regno_mode_ok_p): Prohibit > accumulators > for all vector modes.
This seems like a genuine bug and although it can only be triggered by loongson or paired-single support it probably qualifies for fixing. My suspicion is that the switch to LRA since GCC 4.9 may be the reason this hasn't been noticed before. Reload seemed better in some cases at eliminating bad decisions from IRA so this may have simply never made it through reload by fluke. I'd like Catherine to review too since we are in stage4 without a reproducible test case. Matthew
