Micro-optimize DOUBLE-FLOAT-LOW-BITS on x68-64.

[sbcl.git] / NEWS

diff --git a/NEWS b/NEWS
index c39179a..531f156 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -18,6 +18,7 @@ changes relative to sbcl-1.1.8:
   * optimization: comparisons between rationals and constant floats or between
     integers and constant ratios are now converted to rationals/integers at
     compile time.
+  * optimization: Smaller and faster DOUBLE-FLOAT-LOW-BITS on x86-64.
   * 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)