On 02/12/2016 02:18 PM, Jiong Wang wrote:
PR rtl-optimization/69752 * ira.c (update_equiv_regs): When looking for more than a single SET, also take other side effects into account.Will it be better that we don't remove the insn if it has side-effect instead of don't record the equiv? This can offer more equiv for later rtl optimization?
It's an option I considered, but for stage4 this seems like the safest fix. It's not like this is a very common problem, the effect should be negligible.
Bernd
