Optimize (mod FIXNUM) type-checks on x86oids.

[sbcl.git] / NEWS

diff --git a/NEWS b/NEWS
index a46a208..ffeca18 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -7,6 +7,8 @@ changes relative to sbcl-1.1.8:
   * optimization: when referencing internal functions as #'x, don't go through
     an indirect fdefn structure.
   * optimization: SLEEP doesn't cons on non-immediate floats and on ratios.
+  * optimization: (mod fixnum) type-checks are performed using one unsigned
+    comparison, instead of two.
   * 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)