+
+(deftransform %alien-funcall ((function type &rest args) * * :node node)
+ (aver (sb!c::constant-lvar-p type))
+ (let* ((type (sb!c::lvar-value type))
+ (env (sb!c::node-lexenv node))
+ (arg-types (alien-fun-type-arg-types type))
+ (result-type (alien-fun-type-result-type type)))
+ (aver (= (length arg-types) (length args)))
+ (if (or (some #'(lambda (type)
+ (and (alien-integer-type-p type)
+ (> (sb!alien::alien-integer-type-bits type) 32)))
+ arg-types)
+ (and (alien-integer-type-p result-type)
+ (> (sb!alien::alien-integer-type-bits result-type) 32)))
+ (collect ((new-args) (lambda-vars) (new-arg-types))
+ (dolist (type arg-types)
+ (let ((arg (gensym)))
+ (lambda-vars arg)
+ (cond ((and (alien-integer-type-p type)
+ (> (sb!alien::alien-integer-type-bits type) 32))
+ (new-args `(logand ,arg #xffffffff))
+ (new-args `(ash ,arg -32))
+ (new-arg-types (parse-alien-type '(unsigned 32) env))
+ (if (alien-integer-type-signed type)
+ (new-arg-types (parse-alien-type '(signed 32) env))
+ (new-arg-types (parse-alien-type '(unsigned 32) env))))
+ (t
+ (new-args arg)
+ (new-arg-types type)))))
+ (cond ((and (alien-integer-type-p result-type)
+ (> (sb!alien::alien-integer-type-bits result-type) 32))
+ (let ((new-result-type
+ (let ((sb!alien::*values-type-okay* t))
+ (parse-alien-type
+ (if (alien-integer-type-signed result-type)
+ '(values (unsigned 32) (signed 32))
+ '(values (unsigned 32) (unsigned 32)))
+ env))))
+ `(lambda (function type ,@(lambda-vars))
+ (declare (ignore type))
+ (multiple-value-bind (low high)
+ (%alien-funcall function
+ ',(make-alien-fun-type
+ :arg-types (new-arg-types)
+ :result-type new-result-type)
+ ,@(new-args))
+ (logior low (ash high 32))))))
+ (t
+ `(lambda (function type ,@(lambda-vars))
+ (declare (ignore type))
+ (%alien-funcall function
+ ',(make-alien-fun-type
+ :arg-types (new-arg-types)
+ :result-type result-type)
+ ,@(new-args))))))
+ (sb!c::give-up-ir1-transform))))
+
+
+
+