Update of /cvsroot/sbcl/sbcl
In directory fdv4jf1.ch3.sourceforge.com:/tmp/cvs-serv1324
Modified Files:
NEWS version.lisp-expr
Log Message:
1.0.30.8: redo the recent FP optimizations in a better way
* Multiplication and division should respect signed zeros.
* Optimize division to multiplication by reciprocal when an exact
reciprocal exits -- and always for FLOAT-ACCURACY=0. (Thanks
to Paul Khuong!)
Index: NEWS
===================================================================
RCS file: /cvsroot/sbcl/sbcl/NEWS,v
retrieving revision 1.1572
retrieving revision 1.1573
diff -u -d -r1.1572 -r1.1573
--- NEWS 28 Jul 2009 17:41:39 -0000 1.1572
+++ NEWS 29 Jul 2009 13:35:33 -0000 1.1573
@@ -6,8 +6,8 @@
* new feature: experimental :EMIT-CFASL parameter to COMPILE-FILE can
be used to output toplevel compile-time effects into a separate .CFASL
file.
- * optimization: multiplication and division of single- and double-floats
- with constant +/-one has been optimized.
+ * optimization: division of floating point numbers by constants uses
+ multiplication by reciprocal when an exact reciprocal exists.
* optimization: multiplication of single- and double-floats floats by
constant two has been optimized.
* bug fix: moderately complex combinations of inline expansions could
Index: version.lisp-expr
===================================================================
RCS file: /cvsroot/sbcl/sbcl/version.lisp-expr,v
retrieving revision 1.4560
retrieving revision 1.4561
diff -u -d -r1.4560 -r1.4561
--- version.lisp-expr 28 Jul 2009 18:25:18 -0000 1.4560
+++ version.lisp-expr 29 Jul 2009 13:35:33 -0000 1.4561
@@ -17,4 +17,4 @@
;;; checkins which aren't released. (And occasionally for internal
;;; versions, especially for internal versions off the main CVS
;;; branch, it gets hairier, e.g. "0.pre7.14.flaky4.13".)
-"1.0.30.7"
+"1.0.30.8"
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