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Unified Diff: test/mjsunit/regress/regress-708247.js

Issue 2797993002: [regexp] Ensure there are no shape changes on the fast path (Closed)
Patch Set: Add test Created 3 years, 8 months ago
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Index: test/mjsunit/regress/regress-708247.js
diff --git a/test/mjsunit/regress/regress-708247.js b/test/mjsunit/regress/regress-708247.js
new file mode 100644
index 0000000000000000000000000000000000000000..7512791cd95e76ca909e658570fc41c282486d12
--- /dev/null
+++ b/test/mjsunit/regress/regress-708247.js
@@ -0,0 +1,26 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --predictable
+
+const str = '2016-01-02';
+
+function t() {
+ var re;
+ function toDictMode() {
+ for (var i = 0; i < 100; i++) { // Loop is required.
+ re.x = 42;
+ delete re.x;
+ }
+ return 0;
+ }
+
+ re = /-/g; // Needs to be global to trigger lastIndex accesses.
+ re.lastIndex = { valueOf : toDictMode };
+ return re.exec(str);
+}
+
+for (var q = 0; q < 10000; q++) {
+ t(); // Needs repetitions to trigger a crash.
+}
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