1.0.29.50: update ASDF

[sbcl.git] / NEWS

diff --git a/NEWS b/NEWS
index b7e0b04..19ebe75 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -9,17 +9,24 @@
     values in other threads.
   * new feature: SB-INTROSPECT:ALLOCATION-INFORMATION provides information
     about object allocation.
+  * optimization: more efficient complex float and real float operations
+    on x86-64.
+  * optimization: division of a real float by a complex float is implemented
+    with a specialised code sequence.
   * optimization: MAKE-INSTANCE with non-constant class-argument but constant
     keywords is an order of magnitude faster.
-  * optimization: MAKE-INSTANCE with constant keyword arguments is somewhat
-    faster for non-standard metaclass classes as long as there are no methods
-    additional on MAKE-INSTANCE and initialization arguments can be validated
-    at compile-time.
+  * optimization: MAKE-INSTANCE with constant keyword arguments is x2-4 faster
+    in the presence of :AROUND or non-standard primary INITIALIZE-INSTANCE
+    methods, and similarly for non-standard metaclass classes as long as there
+    are no methods additional on MAKE-INSTANCE.
   * optimization: more efficient type-checks for FIXNUMs when the value
     is known to be a signed word on x86 and x86-64.
   * optimization: compiler now optimizes (EXPT -1 INTEGER), (EXPT -1.0 INTEGER),
     and (EXPT -1.0d0 INTEGER) into an ODDP test. (thanks to Stas Boukarev and
     Paul Khuong)
+  * improvement: less unsafe constant folding in floating point arithmetic,
+    especially for mixed complex/real -float operations.
+  * improvement: complex float division is slightly more stable.
   * improvement: DESCRIBE output has been reworked to be easier to read and
     contains more pertinent information.
   * improvement: failure to provide requested stack allocation compiler notes
@@ -54,6 +61,8 @@
   * bug fix: SLEEP accepts large integer arguments, truncating them to
     SIGNED-WORD on the assumption that sleeping for 68 years is sufficient
     for anyone. (reported by Leslie Polzer, thanks to Stas Boukarev)
+  * bug fix: compiler notes for expensive slot type checks could be emitted
+    at runtime MAKE-INSTANCE calls. (reported by Samium Gromoff)
 
 changes in sbcl-1.0.29 relative to 1.0.28:
   * IMPORTANT: bug database has moved from the BUGS file to Launchpad