v8: upgrade to v3.19.3

1 files changed, 78 insertions, 0 deletions

diff --git a/deps/v8/test/mjsunit/compiler/dead-code3.js b/deps/v8/test/mjsunit/compiler/dead-code3.js
new file mode 100644
index 0000000000..d05797825b
--- /dev/null
+++ b/deps/v8/test/mjsunit/compiler/dead-code3.js
@@ -0,0 +1,78 @@
+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+function dead1(a, b) {
+    a + b; // dead
+    return a;
+}
+
+function dead2(a, b) {
+    a | 0; // dead
+    b | 0; // dead
+    return a; // x and y are both dead
+}
+
+function dead3(a, b) {
+    a == 2 ? a : b; // dead
+    return a;
+}
+
+function dead4(a) {
+    var z = 3;
+    for (i = 0; i < 3; i++) {
+        z + 3; // dead
+    }
+    return a;
+}
+
+function dead5(a) {
+    var z = 3;
+    for (i = 0; i < 3; i++) {
+        z + 3; // dead
+        z++;
+    }
+    var w = z + a;
+    return a; // z is dead
+}
+
+assertTrue(dead1(33, 32) == 33);
+assertTrue(dead2(33, 32) == 33);
+assertTrue(dead3(33, 32) == 33);
+assertTrue(dead4(33) == 33);
+assertTrue(dead5(33) == 33);
+
+assertTrue(dead1(34, 7) == 34);
+assertTrue(dead2(34, 7) == 34);
+assertTrue(dead3(34, 7) == 34);
+assertTrue(dead4(34) == 34);
+assertTrue(dead5(34) == 34);
+
+assertTrue(dead1(3.4, 0.1) == 3.4);
+assertTrue(dead2(3.4, 0.1) == 3.4);
+assertTrue(dead3(3.4, 0.1) == 3.4);
+assertTrue(dead4(3.4) == 3.4);
+assertTrue(dead5(3.4) == 3.4);