[RFA] Minor improvement to compare elimination

Eric Botcazou botcazou@adacore.com
Tue Jun 15 11:46:15 GMT 2021

> I've bootstrapped and regression tested this on x86_64, though I doubt
> it makes any difference there.  BUt I'd bet it would help other targets
> that don't expose double-word operations and have a condition code that
> is clobbered by most instructions.
> OK for the trunk?

Sure, thanks.

Eric Botcazou

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