fix corner case in collapse_vars (#4936)

fixes #4935
2021-05-15 15:34:14 +01:00
parent 2cff7c94e8
commit bbed9b13b1
2 changed files with 26 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1982,6 +1982,7 @@ merge(Compressor.prototype, {
                            force_single = true;
                            continue;
                        }
+                        if (replaced == assign_pos) assign_used = true;
                        var def = lhs.definition();
                        abort = false;
                        hit_index = 0;