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Unified Diff: test/mjsunit/asm/double-lo.js

Issue 974313002: [turbofan] Support for %_DoubleHi, %_DoubleLo and %_ConstructDouble. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Addressed Svens comment. Created 5 years, 10 months ago
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Index: test/mjsunit/asm/double-lo.js
diff --git a/test/mjsunit/asm/double-lo.js b/test/mjsunit/asm/double-lo.js
new file mode 100644
index 0000000000000000000000000000000000000000..39d5b5268fa568322bd80ccd6fcb2ffdf46fd959
--- /dev/null
+++ b/test/mjsunit/asm/double-lo.js
@@ -0,0 +1,40 @@
+// 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
+
+var stdlib = this;
+var foreign = {};
+var heap = new ArrayBuffer(64 * 1024);
+
+
+var m = (function(stdlib, foreign, heap) {
+ "use asm";
+ function lo1(i) {
+ i = +i;
+ return %_DoubleLo(i)|0;
+ }
+ function lo2(i, j) {
+ i = +i;
+ j = +j;
+ return %_DoubleLo(i)+%_DoubleLo(j)|0;
+ }
+ return { lo1: lo1, lo2: lo2 };
+})(stdlib, foreign, heap);
+
+assertEquals(0, m.lo1(0.0));
+assertEquals(0, m.lo1(-0.0));
+assertEquals(0, m.lo1(Infinity));
+assertEquals(0, m.lo1(-Infinity));
+assertEquals(0, m.lo2(0.0, 0.0));
+assertEquals(0, m.lo2(0.0, -0.0));
+assertEquals(0, m.lo2(-0.0, 0.0));
+assertEquals(0, m.lo2(-0.0, -0.0));
+for (var i = -2147483648; i < 2147483648; i += 3999773) {
+ assertEquals(%_DoubleLo(i), m.lo1(i));
+ assertEquals(i, m.lo1(%ConstructDouble(0, i)));
+ assertEquals(i, m.lo1(%ConstructDouble(i, i)));
+ assertEquals(i+i|0, m.lo2(%ConstructDouble(0, i), %ConstructDouble(0, i)));
+ assertEquals(i+i|0, m.lo2(%ConstructDouble(i, i), %ConstructDouble(i, i)));
+}
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