X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fknownfun.lisp;h=078b9f103128eab5feab65b5fda026dcf56ae9bf;hb=2f8c59edcd41f03c5daebeaf87518b5071a19826;hp=811b0be935957ecfc1501ffe82032a7fb18d7cc3;hpb=43caa89c20c70fdef77797fe31e6fd09bfcf2527;p=sbcl.git

diff --git a/src/compiler/knownfun.lisp b/src/compiler/knownfun.lisp
index 811b0be..078b9f1 100644
--- 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
+  ;; 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.
   ;;
@@ -81,7 +85,12 @@
   ;; 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.
@@ -186,7 +195,8 @@
 ;;; 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)))
                           *)
                 %defknown))
 (defun %defknown (names type attributes &key derive-type optimizer destroyed-constant-args)