fix corner case in collapse_vars (#4909)

fixes #4908
2021-05-04 09:33:52 +01:00
parent ce3c35fa8b
commit 3094eaaa89
3 changed files with 28 additions and 3 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1911,6 +1911,7 @@ merge(Compressor.prototype, {
                            right: ref,
                        });
                    }
+                    ref.fixed = false;
                    def.replaced++;
                    return ref;
                }
@@ -1991,6 +1992,7 @@ merge(Compressor.prototype, {
                            && !compressor.exposed(def);
                        value_def.last_ref = false;
                        value_def.single_use = false;
+                        CHANGED = true;
                    }
                    if (replaced && !remove_candidate(candidate)) statements.splice(stat_index, 1);
                }