Index: test/mjsunit/number-isnan-opt.js |
diff --git a/test/mjsunit/number-isnan-opt.js b/test/mjsunit/number-isnan-opt.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a5d4b9f3372c3737d4012484e6f6482f17a652f1 |
--- /dev/null |
+++ b/test/mjsunit/number-isnan-opt.js |
@@ -0,0 +1,55 @@ |
+// 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: --allow-natives-syntax |
+ |
+(function() { |
+ function foo(x) { return Number.isNaN(x); } |
+ |
+ assertTrue(foo(+undefined)); |
+ assertFalse(foo(undefined)); |
+ %OptimizeFunctionOnNextCall(foo); |
+ assertTrue(foo(+undefined)); |
+ assertFalse(foo(undefined)); |
+})(); |
+ |
+(function() { |
+ function foo(x) { return Number.isNaN(+x); } |
+ |
+ assertTrue(foo(+undefined)); |
+ assertFalse(foo(0)); |
+ %OptimizeFunctionOnNextCall(foo); |
+ assertTrue(foo(+undefined)); |
+ assertFalse(foo(0)); |
+})(); |
+ |
+(function() { |
+ function foo(x) { return Number.isNaN(x|0); } |
+ |
+ assertFalse(foo(+undefined)); |
+ assertFalse(foo(0)); |
+ %OptimizeFunctionOnNextCall(foo); |
+ assertFalse(foo(+undefined)); |
+ assertFalse(foo(0)); |
+})(); |
+ |
+(function() { |
+ function foo(x) { return Number.isNaN("" + x); } |
+ |
+ assertFalse(foo(undefined)); |
+ assertFalse(foo(0)); |
+ %OptimizeFunctionOnNextCall(foo); |
+ assertFalse(foo(undefined)); |
+ assertFalse(foo(0)); |
+})(); |
+ |
+(function() { |
+ function foo(x) { return Number.isNaN(0/0); } |
+ |
+ assertTrue(foo()); |
+ assertTrue(foo()); |
+ %OptimizeFunctionOnNextCall(foo); |
+ assertTrue(foo()); |
+ assertTrue(foo()); |
+})(); |