;;; TODO:
;;; - CAST chains;
+(defun delete-cast (cast)
+ (declare (type cast cast))
+ (let ((value (cast-value cast))
+ (lvar (node-lvar cast)))
+ (delete-filter cast lvar value)
+ (when lvar
+ (reoptimize-lvar lvar)
+ (when (lvar-single-value-p lvar)
+ (note-single-valuified-lvar lvar)))
+ (values)))
+
(defun ir1-optimize-cast (cast &optional do-not-optimize)
(declare (type cast cast))
(let ((value (cast-value cast))
(let ((lvar (node-lvar cast)))
(when (values-subtypep (lvar-derived-type value)
(cast-asserted-type cast))
- (delete-filter cast lvar value)
- (when lvar
- (reoptimize-lvar lvar)
- (when (lvar-single-value-p lvar)
- (note-single-valuified-lvar lvar)))
+ (delete-cast cast)
(return-from ir1-optimize-cast t))
(when (and (listp (lvar-uses value))