Jeff Law <l...@redhat.com> writes: > So I think you're ultimately far better off determining why GCC does not > generate efficient code for 64bit logicals on the rl78 target.
In thinking about this more, one possible reason is that rl78 has an 8-bit WORD_MODE. Which means DImode operations are not reduced to SImode, they're reduced to QImode. If you want SImode instead, you need to intervene.
