25.05.2019 15:57, Adriano dos Santos Fernandes wrote:
As I understand, backtrack happens due to reduce/reduce conflicts and we
have 17 of then in the rules.
Accepting of PR #189 could reduce the count to 11. Most likely the technique applied
there can be used for the rest as well.
--
WB
On 25/05/2019 07:24, Vlad Khorsun wrote:
>>
>> Do you see any problem to stop backtracking on these places?
>
> Usage of YYVALID seems as correct way to fix the problem, but... first
> explain
> please - why do you mark both rules as valid and why it solves the issue ?
>
> Note, in test\t2.y ab
25.05.2019 2:19, Adriano dos Santos Fernandes wrote:
Hi!
We always let btyacc nicely handle parser backtracking alone but seems
in some cases we should not let it.
CORE-6068 is such a case. Parser enters in near-infinite loop allocating
and freeing memory trying new paths.
Based on the short b
