0.8.7.19:

[sbcl.git] / NEWS

diff --git a/NEWS b/NEWS
index b4bdb33..8be61c1 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -2173,12 +2173,12 @@ changes in sbcl-0.8.6 relative to sbcl-0.8.5:
     that the various BOOLE-related constants have the same value in
     host and target lisps.  (noted by Paul Dietz' test suite on an
     SBCL binary built from CLISP)
     that the various BOOLE-related constants have the same value in
     host and target lisps.  (noted by Paul Dietz' test suite on an
     SBCL binary built from CLISP)

-  * the system can now be dynamically linked on the MIPS platform,
+  * The system can now be dynamically linked on the MIPS platform,

     which enables dynamic loading of foreign code from Lisp.  (thanks
     to Ralf Baechle for discussions on the MIPS ABI)
     which enables dynamic loading of foreign code from Lisp.  (thanks
     to Ralf Baechle for discussions on the MIPS ABI)

-  * the system now records its own debugging information in a
-    filesystem-position-independent manner, relative to the "SYS"
-    logical host.
+  * The system now records debugging information for its own source
+    files in a filesystem-position-independent manner, relative to 
+    the "SYS" logical host.

   * fixed a compiler bug: MV-LET convertion did not check references
     to the "max args" entry point.  (reported by Brian Downing)
   * tweaked disassembly notes to be less confident about proclaiming
   * fixed a compiler bug: MV-LET convertion did not check references
     to the "max args" entry point.  (reported by Brian Downing)
   * tweaked disassembly notes to be less confident about proclaiming

@@ -2188,13 +2188,79 @@ changes in sbcl-0.8.6 relative to sbcl-0.8.5:
     characteristics.  (thanks to David Lichteblau)
   * fixed some bugs revealed by Paul Dietz' test suite:
     ** compiler failure in compiling LOGAND expressions including a
     characteristics.  (thanks to David Lichteblau)
   * fixed some bugs revealed by Paul Dietz' test suite:
     ** compiler failure in compiling LOGAND expressions including a

-       constant 0.
-    ** implementation of ASH-MOD32 on X86 and PPC did not work for the
+       constant 0
+    ** Implementation of ASH-MOD32 on X86 and PPC did not work for the

        shift greater than 32.
     ** FLUSH-DEST did not mark blocks for type check regeneration.
     ** HANDLER-CASE failed to accept declarations in handler clauses
        in some circumstances.
 
        shift greater than 32.
     ** FLUSH-DEST did not mark blocks for type check regeneration.
     ** HANDLER-CASE failed to accept declarations in handler clauses
        in some circumstances.
 

+changes in sbcl-0.8.7 relative to sbcl-0.8.6:
+  * When built with the :SB-FUTEX feature, threaded builds now take 
+    advantage of the "fast userspace mutex" facility in Linux kernel 2.6
+    for faster/more reliable mutex and condition variable support.
+  * Incompatible change (but one you probably shouldn't have been using
+    anyway): the interface and code for arbitrating between multiple
+    threads in the same user session has been redesigned.
+  * bug fix: GET-SETF-EXPANSION no longer throws an internal type
+    error when called without an explicit environment argument.
+    (thanks to Nikodemus Siivola)
+  * bug fix: buffered :DIRECTION :IO streams are less likely to become
+    confused about their position.  (thanks to Adam Warner and Gerd 
+    Moellmann)
+  * bug fix: Pretty printing backquoted forms with unquotations in the
+    argument list position of various code constructs such as LAMBDA
+    now works correctly.  (reported by Paul Dietz)
+  * bug fix: Pretty printing unquotations no longer loses all
+    stream position information.
+  * optimization: performance of string output streams is now less
+    poor for multiple small sequence writes.
+  * optimization: performance of CSUBTYPEP in the presence of complex
+    expressions involving CONS and NOT many times has been improved.
+    (reported by Paul Dietz)
+  * ASDF-INSTALL bug fix: now parses *PROXY* properly.  (thanks to
+    Sean Ross)
+  * SB-SIMPLE-STREAMS enhancement: simple-streams can now be used as
+    streams for the REPL, for the debugger, and so on.  (thanks to
+    David Licteblau)
+  * DEFINE-CODITION is more efficient.  (thanks to Brian Mastenbrook)
+  * fixed some bugs revealed by Paul Dietz' test suite:
+    ** the value of the :REHASH-THRESHOLD argument to MAKE-HASH-TABLE
+       is ignored if it is too small, rather than propagating through
+       to cause DIVIDE-BY-ZERO or FLOATING-POINT-OVERFLOW errors.
+    ** extremely complex negations of CONS types were not being
+       sufficiently canonicalized, leading to inconsistencies in
+       SUBTYPEP.
+    ** VALUES tranformer lost derived type.
+
+changes in sbcl-0.8.8 relative to sbcl-0.8.7:
+  * bug fix: DECODE-UNIVERSAL-TIME now accepts timezone arguments with
+    second-resolution: integer multiples of 1/3600 between -24 and 24.
+    (thanks to Vincent Arkesteijn)
+  * optimization: implemented multiplication as a modular
+    (UNSIGNED-BYTE 32) operation on the x86 backend.
+  * optimization: SEARCH on simple-base-strings can now be open-coded.
+    (see also contrib/compiler-extras.lisp for inspiration for
+    teaching the compiler about the Boyer-Moore algorithm).
+  * bug fix: functions =, /=, <, <=, >, >= did not check the argument
+    type when called with 1 argument; PEEK-CHAR checked type of
+    PEEK-TYPE only after having read first character from a
+    stream. (reported by Peter Graves)
+  * fixed some bugs revealed by Paul Dietz' test suite:
+    ** in stack analysis liveness information is propagated from
+       non-local entry points.
+    ** pathwise CAST removing failed when the CAST node did not start
+       a block.
+    ** INPUT-STREAM-P, OUTPUT-STREAM-P, STREAM-ELEMENT-TYPE and
+       OPEN-STREAM-P signal a TYPE-ERROR if their argument is not a
+       stream.
+    ** LOAD-LOGICAL-PATHNAME-TRANSLATIONS returns NIL if the logical
+       host is already defined.
+    ** RENAME-FILE works on streams instead of signalling an internal
+       type error.
+    ** PEEK-CHAR now uses the current readtable when determining
+       whether a character is whitespace.
+

 planned incompatible changes in 0.8.x:
   * (not done yet, but planned:) When the profiling interface settles
     down, it might impact TRACE. They both encapsulate functions, and
 planned incompatible changes in 0.8.x:
   * (not done yet, but planned:) When the profiling interface settles
     down, it might impact TRACE. They both encapsulate functions, and