1 files changed, 2 insertions, 0 deletions
diff --git a/Changes b/Changes
index 3f32d5deea..0e4c420099 100644
--- a/Changes
+++ b/Changes
@@ -39,6 +39,8 @@ Compilers:
   int32/int64/nativeint arithmetic.  Constant propagation for floats
   can be turned off with option -no-float-const-prop, for codes that
   change FP rounding modes at run-time.
+- New back-end optimization pass: common subexpression elimination (CSE).
+  (Reuses results of previous computations instead of recomputing them.)
 - New back-end optimization pass: dead code elimination.
   (Removes arithmetic and load instructions whose results are unused.)
 - PR#6269 Optimization of string matching (patch by Benoit Vaugon