do not collapse & inside a FUNCTION_TABLE call, we need the mask

1 files changed, 2 insertions, 0 deletions

diff --git a/tools/js-optimizer.js b/tools/js-optimizer.js
index 151e573a..4829fec8 100644
--- a/tools/js-optimizer.js
+++ b/tools/js-optimizer.js
@@ -584,6 +584,8 @@ function simplifyExpressionsPre(ast) {
             node[3] = value[2];
           }
         }
+      } else if (type == 'sub' && node[1][0] == 'name' && /^FUNCTION_TABLE.*/.exec(node[1][1])) {
+        return null; // do not traverse subchildren here, we should not collapse 55 & 126. TODO: optimize this into a nonvirtual call (also because we lose some other opts here)!
       }
     });