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Unified Diff: test/mjsunit/compiler/global-delete.js

Issue 1063513003: [turbofan] Optimize loads from the global object in JSTypeFeedbackSpecializer. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 8 months ago
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Index: test/mjsunit/compiler/global-delete.js
diff --git a/test/mjsunit/compiler/global-delete.js b/test/mjsunit/compiler/global-delete.js
new file mode 100644
index 0000000000000000000000000000000000000000..c32fda6dfaaa4ceb3efbde99b61fab6f038d6cad
--- /dev/null
+++ b/test/mjsunit/compiler/global-delete.js
@@ -0,0 +1,73 @@
+// Copyright 2015 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: --allow-natives-syntax
+
+function test(expected, f) {
+ assertEquals(expected, f());
+ assertEquals(expected, f());
+ %OptimizeFunctionOnNextCall(f);
+ assertEquals(expected, f());
+ assertEquals(expected, f());
+}
+
+function testThrows(f) {
+ assertThrows(f);
+ assertThrows(f);
+ %OptimizeFunctionOnNextCall(f);
+ assertThrows(f);
+ assertThrows(f);
+}
+
+// --- Constant case.
+a = 11;
+
+function f1() { return a; }
+test(11, f1);
+
+delete a;
+
+testThrows(f1);
+
+
+// --- SMI case.
+
+b = 11;
+b = 12;
+b = 13;
+
+function f2() { return b; }
+test(13, f2);
+
+delete b;
+
+testThrows(f2);
+
+
+// --- double case.
+
+c = 11;
+c = 12.25;
+c = 13.25;
+
+function f3() { return c; }
+test(13.25, f3);
+
+delete c;
+
+testThrows(f3);
+
+
+// --- tagged case.
+
+d = 11;
+d = 12.25;
+d = "hello";
+
+function f4() { return d; }
+test("hello", f4);
+
+delete d;
+
+testThrows(f4);
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