faster FIND and POSITION on bit-vectors

[sbcl.git] / NEWS

diff --git a/NEWS b/NEWS
index f1498bf..9bf52bd 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -8,7 +8,8 @@ changes relative to sbcl-1.0.54:
        (Mainly useful for building 32-bit SBCL's on x86-64 hosts, not
        full-blows cross-compilation.)
   * enhancement: extended package prefix syntax <pkgname>::<form-in-package>
-    which allows specifying the name of the package for a whole form.
+    which allows specifying name of the default interning package for the
+    whole form.
   * enhancement: when *READ-EVAL* is true, arrays with element type other than
     T can be printed readably using #.-based syntax. (Thanks to Robert Brown)
   * enhancement: MAKE-ALIEN signals a storage-condition instead of returning a
@@ -33,6 +34,14 @@ changes relative to sbcl-1.0.54:
   * enhancement: SBCL now provides either an explicit :BIG-ENDIAN or
     :LITTLE-ENDIAN in *FEATURES*, instead of :BIG-ENDIAN being implied by lack
     of the :LITTLE-ENDIAN feature. (Thanks to Luís Oliveira, lp#901661)
+  * enhancement: better disassembly of segment-prefixes on x86 and other
+    instruction prefixes (e.g. LOCK) on x86 and x86-64.
+  * optimization: FIND and POSITION on bit-vectors are orders of magnitude
+    faster (assuming KEY and TEST are not used, or are sufficiently trivial).
+  * optimization: SUBSEQ on vectors of unknown element type is substantially
+    faster. (lp#902537)
+  * optimization: specialized arrays with non-zero :INITIAL-ELEMENT can
+    be stack-allocated. (lp#902351)
   * optimization: the compiler is smarter about representation selection for
     floating point constants used in full calls.
   * optimization: the compiler no longer refuses to coerce large fixnums to
@@ -74,6 +83,12 @@ changes relative to sbcl-1.0.54:
     (regression since 1.0.53)
   * bug fix: attempts to stack allocate a required argument to a function with
     an external entry point caused compiler-errors.
+  * bug fix: compiler notes for failed stack allocation for a function argument
+    no longer claim to be unable to stack allocate the function.
+  * bug fix: COERCE now signals a type-error on several coercions to
+    subtypes of CHARACTER that are forbidden according to ANSI. (lp#841312)
+  * bug fix: missing failure-to-stack-allocate compiler notes for some
+    forms of MAKE-ARRAY with dynamic-extent. (lp#902351)
 
 changes in sbcl-1.0.54 relative to sbcl-1.0.53:
   * minor incompatible changes: