Re: [PATCH 3/6] lra-assigns.c: fix pseudo_compare_func

[Jeff Law]

On 07/15/2017 02:47 PM, Alexander Monakov wrote:
> This comparator lacks anti-commutativity and can indicate
> A < B < A if both A and B satisfy non_spilled_static_chain_regno_p.
> Proceed to following tie-breakers in that case.
> 
> (it looks like the code incorrectly assumes that at most one register
> in the array will satisfy non_spilled_static_chain_regno_p)
> 
>       * lra-assigns.c (pseudo_compare_func): Fix comparison step based on
>         non_spilled_static_chain_regno_p.
OK.
jeff