Index: test/mjsunit/double-intrinsics.js |
diff --git a/test/mjsunit/double-intrinsics.js b/test/mjsunit/double-intrinsics.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..16d6538937f5d55d9bbb17f50bfdbea90c0e665d |
--- /dev/null |
+++ b/test/mjsunit/double-intrinsics.js |
@@ -0,0 +1,36 @@ |
+// Copyright 2014 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 assertDoubleBits(hi, lo, x) { |
+ hi = hi | 0; |
+ lo = lo | 0; |
+ assertEquals(x, %_ConstructDouble(hi, lo)); |
+ assertEquals(hi, %_DoubleHi(x)); |
+ assertEquals(lo, %_DoubleLo(x)); |
+ assertEquals(x, %_ConstructDouble(%_DoubleHi(x), %_DoubleLo(x))); |
+} |
+ |
+ |
+var tests = [0x7ff00000, 0x00000000, Infinity, |
+ 0xfff00000, 0x00000000, -Infinity, |
+ 0x80000000, 0x00000000, -0, |
+ 0x400921fb, 0x54442d18, Math.PI, |
+ 0xc00921fb, 0x54442d18, -Math.PI, |
+ 0x4005bf0a, 0x8b145769, Math.E, |
+ 0xc005bf0a, 0x8b145769, -Math.E, |
+ 0xbfe80000, 0x00000000, -0.75]; |
+ |
+ |
+for (var i = 0; i < tests.length; i += 3) { |
+ assertDoubleBits(tests[i], tests[i + 1], tests[i + 2]); |
+} |
+ |
+%OptimizeFunctionOnNextCall(assertDoubleBits); |
+ |
+for (var i = 0; i < tests.length; i += 3) { |
+ assertDoubleBits(tests[i], tests[i + 1], tests[i + 2]); |
+ assertOptimized(assertDoubleBits); |
+} |