On 05/14/2015 11:36 AM, Segher Boessenkool wrote:
The alternative that allows move to mem is alt 1, but it thinks the operand
doesn't match (it is "B" or "W"), it picks alt 0, loop, everyone unhappy.
"B" should match it seems?
(Why does IRA think r56 should be in memory? Yeah, good question.)
Independent of that, if a reg-reg move generated by LRA (which is really
a mem->reg or reg->mem) blows up on this target for some reason, then
that needs to be addressed independently of whether or not IRA might
have made a bad choice for which pseudo to spill.
Jeff
