Enable signed modular arithmetic for LOGIOR

[sbcl.git] / NEWS

diff --git a/NEWS b/NEWS
index 1f805df..b23e3ee 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -11,6 +11,8 @@ changes relative to sbcl-1.1.8:
     comparison, instead of two.
   * optimization: enable more modular arithmetic transforms in the presence of
     conditionals.
+  * optimization: bitwise OR forms can now trigger modular arithmetic as well,
+    when the result is known to be negative.
   * bug fix: problems with NCONC type derivation (reported by Jerry James).
   * bug fix: EXPT type derivation no longer constructs bogus floating-point
     types.  (reported by Vsevolod Dyomkin)