minor

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/compress.js b/lib/compress.js
index ddbf41fa..a7472ce7 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -993,7 +993,7 @@ function Compressor(options, false_by_default) {
             }
         }
         if (is_empty(self.alternative)) self.alternative = null;
-        var negated = self.condition.negate(compressor);
+        var negated = self.condition.negate(compressor).optimize(compressor);
         var negated_is_best = best_of(self.condition, negated) === negated;
         if (self.alternative && negated_is_best) {
             negated_is_best = false; // because we already do the switch here.
@@ -1077,7 +1077,7 @@ function Compressor(options, false_by_default) {
         if (aborts(self.alternative)) {
             var body = self.body;
             self.body = self.alternative;
-            self.condition = negated_is_best ? negated : self.condition.negate(compressor);
+            self.condition = negated_is_best ? negated : self.condition.negate(compressor).optimize(compressor);
             self.alternative = null;
             return make_node(AST_BlockStatement, self, {
                 body: [ self, body ]