On 2022-02-20 12:34, Iain Sandoe wrote:

^^^ this is mostly for my education - the stuff below is a potential solution 
to leaving lra-constraints unchanged and fixing the Darwin bug….

I'd be really glad if you do manage to fix this w/o changing LRA. Richard has a legitimate point that my proposed change in LRA prohibiting `...;reg=low_sum; ...mem[reg]` might force LRA to generate less optimized code or even might make LRA to generate unrecognized insns `reg = orginal addr` for some ports requiring further fixes in machine-dependent code of the ports.

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