X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fgtn.lisp;h=3d6c0c857974250e7b65e4d8ed2f985ffb3b5c5d;hb=8dd43b84a688fde72f6d957c59f7207d539990f7;hp=0aa7f2bfac4f889c85bde5e326f8bd8f7011706d;hpb=b05f52060838600d14b5d8ad4604a61351dd7017;p=sbcl.git

diff --git a/src/compiler/gtn.lisp b/src/compiler/gtn.lisp
index 0aa7f2b..3d6c0c8 100644
--- a/src/compiler/gtn.lisp
+++ b/src/compiler/gtn.lisp
@@ -84,12 +84,11 @@
 
   (values))
 
-;;; Return true if FUN's result continuation is used in a
-;;; tail-recursive full call. We only consider explicit :FULL calls.
-;;; It is assumed that known calls are never part of a tail-recursive
-;;; loop, so we don't need to enforce tail-recursion. In any case, we
-;;; don't know which known calls will actually be full calls until
-;;; after LTN.
+;;; Return true if FUN's result is used in a tail-recursive full
+;;; call. We only consider explicit :FULL calls. It is assumed that
+;;; known calls are never part of a tail-recursive loop, so we don't
+;;; need to enforce tail-recursion. In any case, we don't know which
+;;; known calls will actually be full calls until after LTN.
 (defun has-full-call-use (fun)
   (declare (type clambda fun))
   (let ((return (lambda-return fun)))
@@ -116,12 +115,11 @@
 	(block punt
 	  (dolist (fun funs t)
 	    (dolist (ref (leaf-refs fun))
-	      (let* ((cont (node-cont ref))
-		     (dest (continuation-dest cont)))
-		(when (and dest
+	      (let* ((lvar (node-lvar ref))
+		     (dest (and lvar (lvar-dest lvar))))
+		(when (and (basic-combination-p dest)
 			   (not (node-tail-p dest))
-			   (basic-combination-p dest)
-			   (eq (basic-combination-fun dest) cont)
+			   (eq (basic-combination-fun dest) lvar)
 			   (eq (basic-combination-kind dest) :local))
 		  (return-from punt nil)))))))))
 
@@ -137,7 +135,7 @@
 		     inhibit-warnings))
       (dolist (fun funs
 		   (let ((*compiler-error-context* (lambda-bind (first funs))))
-		     (compiler-note
+		     (compiler-notify
 		      "Return value count mismatch prevents known return ~
 		       from these functions:~
 		       ~{~%  ~A~}"
@@ -150,7 +148,7 @@
 		(declare (ignore ignore))
 		(when (eq count :unknown)
 		  (let ((*compiler-error-context* (lambda-bind fun)))
-		    (compiler-note
+		    (compiler-notify
 		     "Return type not fixed values, so can't use known return ~
 		      convention:~%  ~S"
 		     (type-specifier rtype)))
@@ -167,7 +165,8 @@
   (multiple-value-bind (types count) (values-types (tail-set-type tails))
     (let ((ptypes (mapcar #'primitive-type types))
 	  (use-standard (use-standard-returns tails)))
-      (when (and (eq count :unknown) (not use-standard))
+      (when (and (eq count :unknown) (not use-standard)
+                 (not (eq (tail-set-type tails) *empty-type*)))
 	(return-value-efficiency-note tails))
       (if (or (eq count :unknown) use-standard)
 	  (make-return-info :kind :unknown