A64: Synchronize with r16024.

test/mjsunit/math-abs.js

Index: test/mjsunit/math-abs.js
diff --git a/test/mjsunit/math-abs.js b/test/mjsunit/math-abs.js
index 2b079546ea449cd0e0cec490b2f8d6338e41e176..d6ee3f2da7853f071559cbb32911dcde3a81f506 100644
--- a/test/mjsunit/math-abs.js
+++ b/test/mjsunit/math-abs.js
@@ -109,3 +109,14 @@ for(var i = 0; i < 1000; i++) {
 assertEquals(42, foo(-42));
 %OptimizeFunctionOnNextCall(foo)
 assertEquals(42, foo(-42));
+
+// Regression test for SMI input of Math.abs on X64, see:
+// https://codereview.chromium.org/21180004/
+var a = [-1, -2];
+function foo2() {
+  return Math.abs(a[0]);
+}
+assertEquals(1, foo2());
+assertEquals(1, foo2());
+%OptimizeFunctionOnNextCall(foo2);
+assertEquals(1, foo2());