[COMMITTED] Remove pass counting in VRP.

[Andrew MacLeod]

On 10/3/23 13:02, David Malcolm wrote:
> On Tue, 2023-10-03 at 10:32 -0400, Andrew MacLeod wrote:
>> Pass counting in VRP is used to decide when to call early VRP, pass
>> the
>> flag to enable warnings, and when the final pass is.
>>
>> If you try to add additional passes, this becomes quite fragile. This
>> patch simply chooses the pass based on the data pointer passed in,
>> and
>> remove the pass counter.   The first FULL VRP pass invokes the
>> warning
>> code, and the flag passed in now represents the FINAL pass of VRP.
>> There is no longer a global flag which, as it turns out, wasn't
>> working
>> well with the JIT compiler, but when undetected.  (Thanks to dmalcolm
>> for helping me sort out what was going on there)
>>
>>
>> Bootstraps  on x86_64-pc-linux-gnu with no regressions.   Pushed.
> [CCing jit mailing list]
>
> I'm worried that this patch may have "papered over" an issue with
> libgccjit.  Specifically:

well, that isnt the patch that was checked in :-P

Im not sure how the old version got into the commit note.

Attached is the version checked in.

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