reduce overlap of sequences & side_effects (#5344)

2022-02-07 16:29:04 +00:00
parent 327e94a759
commit b6c72c84d4
9 changed files with 280 additions and 17 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -3637,9 +3637,7 @@ Compressor.prototype.compress = function(node) {
                var stat = statements[i];
                if (stat instanceof AST_SimpleStatement) {
                    if (seq.length >= compressor.sequences_limit) push_seq();
-                    var body = stat.body;
-                    if (seq.length > 0) body = body.drop_side_effect_free(compressor);
-                    if (body) merge_sequence(seq, body);
+                    merge_sequence(seq, stat.body);
                } else if (is_declaration(stat)) {
                    statements[n++] = stat;
                } else {