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Extend cstrs pass to match `unless' like code

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* lisp/emacs-lisp/comp.el (comp-emit-assume): Add assertion.
	(comp-add-new-block-between): Fix two typos.
	(comp-add-cond-cstrs-target-block): Fix typo.
	(comp-add-cond-cstrs-simple): Logic update.
	* test/src/comp-tests.el (comp-tests-type-spec-tests): Add a test.
This commit is contained in:
Andrea Corallo 2020-12-22 15:00:44 +01:00
parent 715cac119a
commit 538f59806c
2 changed files with 23 additions and 6 deletions
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23
lisp/emacs-lisp/comp.el
View File

@ -1891,6 +1891,7 @@ The assume is emitted at the beginning of the block BB."
(tmp-mvar (if negated
(make-comp-mvar :slot (comp-mvar-slot rhs))
rhs)))
(cl-assert lhs-slot)
(push `(assume ,(make-comp-mvar :slot lhs-slot) (and ,lhs ,tmp-mvar))
(comp-block-insns bb))
(if negated
@ -1898,7 +1899,7 @@ The assume is emitted at the beginning of the block BB."
(comp-block-insns bb)))
(setf (comp-func-ssa-status comp-func) 'dirty)))
(defun comp-add-new-block-beetween (bb-symbol bb-a bb-b)
(defun comp-add-new-block-between (bb-symbol bb-a bb-b)
"Create a new basic-block named BB-SYMBOL and add it between BB-A and BB-B."
(cl-loop
with new-bb = (make-comp-block-cstr :name bb-symbol
@ -1913,8 +1914,8 @@ The assume is emitted at the beginning of the block BB."
(comp-block-out-edges bb-a) (delq ed (comp-block-out-edges bb-a)))
(push ed (comp-block-out-edges new-bb))
;; Connect `bb-a' `new-bb' with `new-edge'.
(push (comp-block-out-edges bb-a) new-edge)
(push (comp-block-in-edges new-bb) new-edge)
(push new-edge (comp-block-out-edges bb-a))
(push new-edge (comp-block-in-edges new-bb))
(setf (comp-func-ssa-status comp-func) 'dirty)
;; Add `new-edge' to the current function and return it.
(cl-return (puthash bb-symbol new-bb (comp-func-blocks comp-func)))
@ -1948,9 +1949,9 @@ TARGET-BB-SYM is the symbol name of the target block."
;; If block has only one predecessor is already suitable for
;; adding constraint assumptions.
target-bb
(comp-add-new-block-beetween (intern (concat (symbol-name target-bb-sym)
"_cstrs"))
curr-bb target-bb))))
(comp-add-new-block-between (intern (concat (symbol-name target-bb-sym)
"_cstrs"))
curr-bb target-bb))))
(defun comp-add-cond-cstrs-simple ()
"`comp-add-cstrs' worker function for each selected function."
@ -1974,6 +1975,16 @@ TARGET-BB-SYM is the symbol name of the target block."
do
(setf (car branch-target-cell) (comp-block-name block-target))
(comp-emit-assume tmp-mvar obj2 block-target negated)
finally (cl-return-from in-the-basic-block)))
(`((cond-jump ,obj1 ,obj2 . ,blocks))
(cl-loop
for branch-target-cell on blocks
for branch-target = (car branch-target-cell)
for block-target = (comp-add-cond-cstrs-target-block b branch-target)
for negated in '(nil t)
do
(setf (car branch-target-cell) (comp-block-name block-target))
(comp-emit-assume obj1 obj2 block-target negated)
finally (cl-return-from in-the-basic-block)))))))
(defun comp-add-cond-cstrs ()

6
test/src/comp-tests.el
View File

@ -941,6 +941,12 @@ Return a list of results."
((defun comp-tests-ret-type-spec-f (x)
(when x
'foo))
(or (member foo) null))
;; 21
((defun comp-tests-ret-type-spec-f (x)
(unless x
'foo))
(or (member foo) null))))
(defun comp-tests-define-type-spec-test (number x)