On 10/10/2014 09:52 AM, Richard Henderson wrote:
> I wonder what kind of fallout there would be from changing LO_SUM to
> RTX_BIN_ARITH, which is what it should have been all along.

The answer is "a lot".  Mostly throughout simplify-rtx.c, wherein we'd have to
move all sorts of code around to accommodate the class change.

I've abandoned that line and I'm just testing a one line change to
shrink-wrap.c to accept LO_SUM.


r~

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