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• Vl-match-latch-main

Vl-match-latchbody

Pattern match simple kinds of latch statements.

Signature

(vl-match-latchbody x) → (mv test lhs rhs delay)

Arguments

x — Guard (vl-stmt-p x).

Returns

test — Type (equal (vl-expr-p test) (if test t nil)), given the guard.

lhs — Type (and (equal (vl-expr-p lhs) (if test t nil)) (iff lhs test)), given the guard.

rhs — Type (and (equal (vl-expr-p rhs) (if test t nil)) (iff rhs test)), given the guard.

delay — maybe natp.

Definitions and Theorems

Function: vl-match-latchbody

(defun vl-match-latchbody (x)
  (declare (xargs :guard (vl-stmt-p x)))
  (let ((__function__ 'vl-match-latchbody))
    (declare (ignorable __function__))
    (b* (((mv test lhs rhs delay)
          (vl-match-latchbody-form1 x))
         ((when test) (mv test lhs rhs delay)))
      (vl-match-latchbody-form2 x))))

Theorem: return-type-of-vl-match-latchbody.test

(defthm return-type-of-vl-match-latchbody.test
  (implies (and (force (vl-stmt-p x)))
           (b* (((mv ?test ?lhs ?rhs ?delay)
                 (vl-match-latchbody x)))
             (equal (vl-expr-p test)
                    (if test t nil))))
  :rule-classes :rewrite)

Theorem: return-type-of-vl-match-latchbody.lhs

(defthm return-type-of-vl-match-latchbody.lhs
  (implies (and (force (vl-stmt-p x)))
           (b* (((mv ?test ?lhs ?rhs ?delay)
                 (vl-match-latchbody x)))
             (and (equal (vl-expr-p lhs) (if test t nil))
                  (iff lhs test))))
  :rule-classes :rewrite)

Theorem: return-type-of-vl-match-latchbody.rhs

(defthm return-type-of-vl-match-latchbody.rhs
  (implies (and (force (vl-stmt-p x)))
           (b* (((mv ?test ?lhs ?rhs ?delay)
                 (vl-match-latchbody x)))
             (and (equal (vl-expr-p rhs) (if test t nil))
                  (iff rhs test))))
  :rule-classes :rewrite)

Theorem: maybe-natp-of-vl-match-latchbody.ticks

(defthm maybe-natp-of-vl-match-latchbody.ticks
  (maybe-natp (mv-nth 3 (vl-match-latchbody x)))
  :rule-classes :type-prescription)