0.9.13.52: Windows installer tweaks

[sbcl.git] / doc / manual / efficiency.texinfo

diff --git a/doc/manual/efficiency.texinfo b/doc/manual/efficiency.texinfo
index 20ab991..6931ed0 100644 (file)
--- a/doc/manual/efficiency.texinfo
+++ b/doc/manual/efficiency.texinfo
@@ -192,6 +192,23 @@ or
   ...)
 @end lisp
 
+@item
+Stack allocation of simple forms of @code{make-array}, whose result is
+bound to a variable, declared @code{dynamic-extent}. The resulting
+array should be one-dimensional, the only allowed keyword argument is
+@code{:element-type}.
+
+Notice, that stack space is limited, so allocation of a large vector
+may cause stack overflow and abnormal termination of the SBCL process.
+
+@item
+Stack allocation of closures, defined with @code{flet} or
+@code{labels} with a bound declaration @code{dynamic-extent}.
+Closed-over variables, which are assigned (either inside or outside
+the closure) are still allocated on the heap. Blocks and tags are also
+allocated on the heap, unless all non-local control transfers to them
+are compiled with zero @code{safety}.
+
 @end itemize
 
 Future plans include