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Re: Linux and Windows generate different binaries
On Sat, Jul 15, 2017 at 07:40:13PM +0100, Yuri Gribov wrote:
> Looked at generators, we have three comparison routines which return 0
> for different objects but all seem to be safe i.e. can't influence
> code generated by GCC.
>
> alt_state_cmp (genautomata.c) - intentional, duplicates are removed afterwards.
>
> optab_rcode_cmp (genopinit.c) - compares objects with rcode == UNKNOWN
> as equal but that's fine as later codes treats them in the same way
> (sets their code_to_optab_ table to unknown_optab).
>
> subroutine_candidate_cmp (genrecog.c) - this compares function
> candidates with same number of statements in them as equal. This may
> cause different split of state recognition code to recog_%d
> subroutines but should not change semantics of code as a whole.
That sounds like a debugging nightmare though.
Would it hurt us to use stable sorts *everywhere*?
Segher