1. 23 Mar, 2016 1 commit
  2. 05 Mar, 2016 2 commits
  3. 04 Mar, 2016 2 commits
  4. 03 Mar, 2016 1 commit
  5. 24 Feb, 2016 3 commits
  6. 22 Feb, 2016 2 commits
    • Robbert Krebbers's avatar
      Let set_solver not use eauto by default. · d719e001
      Robbert Krebbers authored
      In most cases there is a lot of duplicate proof search performed by
      both naive_solver and eauto. Especially since naive_solver calls its
      tactic (in the case of set_solver this used to be eauto) quite eagerly
      this made it very slow.
      
      Note that set_solver is this too slow and should be improved.
      d719e001
    • Robbert Krebbers's avatar
      Let set_solver not use eauto by default. · 060c2b8f
      Robbert Krebbers authored
      In most cases there is a lot of duplicate proof search performed by
      both naive_solver and eauto. Especially since naive_solver calls its
      tactic (in the case of set_solver this used to be eauto) quite eagerly
      this made it very slow.
      
      Note that set_solver is this too slow and should be improved.
      060c2b8f
  7. 17 Feb, 2016 3 commits
  8. 16 Feb, 2016 1 commit
  9. 15 Feb, 2016 2 commits
  10. 13 Feb, 2016 1 commit
  11. 16 Jan, 2016 2 commits
  12. 04 Jan, 2016 1 commit
  13. 11 Dec, 2015 1 commit
  14. 20 Nov, 2015 1 commit
    • Robbert Krebbers's avatar
      Step-indexed order on CMRAs · 58096261
      Robbert Krebbers authored
      * Remove the order from RAs, it is now defined in terms of the ⋅ operation.
      * Define ownership using the step-indexed order.
      * Remove the order also from DRAs and change STS accordingly. While doing
        that, I changed STS to no longer use decidable token sets, which removes the
        requirement of decidable equality on tokens.
      58096261
  15. 18 Nov, 2015 1 commit
  16. 17 Nov, 2015 1 commit
  17. 16 Nov, 2015 2 commits
  18. 03 Feb, 2017 1 commit
  19. 01 Feb, 2017 1 commit
    • Robbert Krebbers's avatar
      Port to Coq 8.5 beta 2. · 02f213ce
      Robbert Krebbers authored
      The port makes the following notable changes:
      
      * The carrier types of separation algebras and integer environments are no
        longer in Set. Now they have a type at a fixed type level above Set. This
        both works better in 8.5 and makes the formalization more general.
        I have tried putting them at polymorphic type levels, but that increased the
        compilation time by an order of magnitude.
      * I am using a custom f_equal tactic written in Ltac to circumvent bug #4069.
        That bug has been fixed, so this custom tactic can be removed when the next
        beta of 8.5 is out.
      02f213ce
  20. 04 Jun, 2015 1 commit
  21. 02 Jun, 2015 1 commit
  22. 22 Apr, 2015 1 commit
  23. 16 Apr, 2015 1 commit
  24. 02 Mar, 2015 1 commit
  25. 08 Feb, 2015 2 commits
    • Robbert Krebbers's avatar
      Update copyright headers. · 5a73c4ed
      Robbert Krebbers authored
      5a73c4ed
    • Robbert Krebbers's avatar
      Support function pointers and use a state monad in the frontend. · b2109c25
      Robbert Krebbers authored
      Important changes in the core semantics:
      * Types extended with function types. Since function types are a special kind
        of pointer types, types now have an additional mutual part called "ptr_type".
      * Pointers extended with function pointers. Theses are just names that refer
        to an actual function in the function environment.
      * Typing environments extended to assign argument and return types to function
        names. Before we used a separate environment for these, but since the
        argument and return types are already needed to type function pointers, this
        environment would appear in pretty much every typing judgment.
      
      As a side-effect, the frontend has been rewritten entirely. The important
      changes are:
      
      * Type checking of expressions is more involved: there is a special kind of
        expression type corresponding to a function designator.
      * To handle things like block scoped extern function, more state-fullness was
        needed. To prepare for future extensions, the entire frontend now uses a
        state monad.
      b2109c25
  26. 27 Jan, 2015 1 commit
    • Robbert Krebbers's avatar
      Let the malloc expression non-deterministically yield NULL. · fdcc90dd
      Robbert Krebbers authored
      * This behavior is "implementation defined" and can be turned on and off
        using the Boolean field "alloc_can_fail" of the class "Env".
      * The expression "EAlloc" is now an r-value of pointer type instead of an
        l-value.
      * The executable semantics for expressions is now non-deterministic. Hence,
        some proofs had to be revised.
      fdcc90dd
  27. 15 Nov, 2014 1 commit
    • Robbert Krebbers's avatar
      More accurate formalization of integer ranks. · da7a14bb
      Robbert Krebbers authored
      Integers with the same size, are no longer supposed to have the same rank. As a
      result, the C integer types (char, short, int, long, long long) are different
      (and thus cannot alias) even if they have the same size. We now have to use a
      more involved definition of integer promotions and usual arithmetic conversions.
      However, this new definition follows the C standard literally.
      da7a14bb
  28. 03 Sep, 2014 1 commit
  29. 25 Aug, 2014 1 commit