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    • Abstract-syntax-operations

    Binop->priority

    Priority of (binary expressions with) operators.

    Signature
    (binop->priority op) → priority
    Arguments
    op — Guard (binopp op).
    Returns
    priority — Type (expr-priorityp priority).

    Definitions and Theorems

    Function: binop->priority

    (defun binop->priority (op)
      (declare (xargs :guard (binopp op)))
      (binop-case op
                  :mul (expr-priority-mul)
                  :div (expr-priority-mul)
                  :rem (expr-priority-mul)
                  :add (expr-priority-add)
                  :sub (expr-priority-add)
                  :shl (expr-priority-sh)
                  :shr (expr-priority-sh)
                  :lt (expr-priority-rel)
                  :gt (expr-priority-rel)
                  :le (expr-priority-rel)
                  :ge (expr-priority-rel)
                  :eq (expr-priority-eq)
                  :ne (expr-priority-eq)
                  :bitand (expr-priority-and)
                  :bitxor (expr-priority-xor)
                  :bitior (expr-priority-ior)
                  :logand (expr-priority-logand)
                  :logor (expr-priority-logor)
                  :asg (expr-priority-asg)
                  :asg-mul (expr-priority-asg)
                  :asg-div (expr-priority-asg)
                  :asg-rem (expr-priority-asg)
                  :asg-add (expr-priority-asg)
                  :asg-sub (expr-priority-asg)
                  :asg-shl (expr-priority-asg)
                  :asg-shr (expr-priority-asg)
                  :asg-and (expr-priority-asg)
                  :asg-xor (expr-priority-asg)
                  :asg-ior (expr-priority-asg)))

    Theorem: expr-priorityp-of-binop->priority

    (defthm expr-priorityp-of-binop->priority
      (b* ((priority (binop->priority op)))
        (expr-priorityp priority))
      :rule-classes :rewrite)

    Theorem: binop->priority-of-binop-fix-op

    (defthm binop->priority-of-binop-fix-op
      (equal (binop->priority (binop-fix op))
             (binop->priority op)))

    Theorem: binop->priority-binop-equiv-congruence-on-op

    (defthm binop->priority-binop-equiv-congruence-on-op
      (implies (binop-equiv op op-equiv)
               (equal (binop->priority op)
                      (binop->priority op-equiv)))
      :rule-classes :congruence)