fix corner case in reduce_vars (#5517)

fixes #5516
2022-06-18 20:27:00 +01:00
parent 74e36e4456
commit 933ca9ddd8
3 changed files with 68 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -11997,6 +11997,8 @@ Compressor.prototype.compress = function(node) {
                    if ((def.scope !== self.scope.resolve() || def.in_loop)
                        && (!compressor.option("reduce_funcs") || def.escaped.depth == 1 || fixed.inlined)) {
                        single_use = false;
+                    } else if (def.redefined()) {
+                        single_use = false;
                    } else if (recursive_ref(compressor, def, fixed)) {
                        single_use = false;
                    } else if (fixed.name && fixed.name.definition() !== def) {