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Reduce random casting in looks_like_valid_lisp_pointer_p().
[sbcl.git]
/
src
/
compiler
/
knownfun.lisp
diff --git
a/src/compiler/knownfun.lisp
b/src/compiler/knownfun.lisp
index
811b0be
..
e121815
100644
(file)
--- a/
src/compiler/knownfun.lisp
+++ b/
src/compiler/knownfun.lisp
@@
-61,6
+61,10
@@
;; in the safe code. If a function MUST signal errors, then it is
;; not unsafely-flushable even if it is movable or foldable.
unsafely-flushable
;; in the safe code. If a function MUST signal errors, then it is
;; not unsafely-flushable even if it is movable or foldable.
unsafely-flushable
+ ;; return value is important, and ignoring it is probably a mistake.
+ ;; Unlike the other attributes, this is used only for style
+ ;; warnings and has no effect on optimization.
+ important-result
;; may be moved with impunity. Has no side effects except possibly
;; consing, and is affected only by its arguments.
;;
;; may be moved with impunity. Has no side effects except possibly
;; consing, and is affected only by its arguments.
;;
@@
-81,7
+85,12
@@
;; The function does explicit argument type checking, so the
;; declared type should not be asserted when a definition is
;; compiled.
;; The function does explicit argument type checking, so the
;; declared type should not be asserted when a definition is
;; compiled.
- explicit-check)
+ explicit-check
+ ;; The function should always be translated by a VOP (i.e. it should
+ ;; should never be converted into a full call). This is used strictly
+ ;; as a consistency checking mechanism inside the compiler during IR2
+ ;; transformation.
+ always-translatable)
(defstruct (fun-info #-sb-xc-host (:pure t))
;; boolean attributes of this function.
(defstruct (fun-info #-sb-xc-host (:pure t))
;; boolean attributes of this function.
@@
-122,7
+131,10
@@
(templates nil :type list)
;; If non-null, then this function is a unary type predicate for
;; this type.
(templates nil :type list)
;; If non-null, then this function is a unary type predicate for
;; this type.
- (predicate-type nil :type (or ctype null)))
+ (predicate-type nil :type (or ctype null))
+ ;; If non-null, the index of the argument which becomes the result
+ ;; of the function.
+ (result-arg nil :type (or index null)))
(defprinter (fun-info)
(attributes :test (not (zerop attributes))
(defprinter (fun-info)
(attributes :test (not (zerop attributes))
@@
-173,7
+185,8
@@
(eq (transform-important x) important)))
(fun-info-transforms info))))
(cond (old
(eq (transform-important x) important)))
(fun-info-transforms info))))
(cond (old
- (style-warn "Overwriting ~S" old)
+ (style-warn 'sb!kernel:redefinition-with-deftransform
+ :transform old)
(setf (transform-function old) fun
(transform-note old) note))
(t
(setf (transform-function old) fun
(transform-note old) note))
(t
@@
-186,15
+199,18
@@
;;; and optimizers.
(declaim (ftype (function (list list attributes &key
(:derive-type (or function null))
;;; and optimizers.
(declaim (ftype (function (list list attributes &key
(:derive-type (or function null))
- (:optimizer (or function null)))
+ (:optimizer (or function null))
+ (:destroyed-constant-args (or function null))
+ (:result-arg (or index null)))
*)
%defknown))
*)
%defknown))
-(defun %defknown (names type attributes &key derive-type optimizer destroyed-constant-args)
+(defun %defknown (names type attributes &key derive-type optimizer destroyed-constant-args result-arg)
(let ((ctype (specifier-type type))
(info (make-fun-info :attributes attributes
:derive-type derive-type
:optimizer optimizer
(let ((ctype (specifier-type type))
(info (make-fun-info :attributes attributes
:derive-type derive-type
:optimizer optimizer
- :destroyed-constant-args destroyed-constant-args))
+ :destroyed-constant-args destroyed-constant-args
+ :result-arg result-arg))
(target-env *info-environment*))
(dolist (name names)
(let ((old-fun-info (info :function :info name)))
(target-env *info-environment*))
(dolist (name names)
(let ((old-fun-info (info :function :info name)))