Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(357)

Unified Diff: test/mjsunit/math-imul.js

Issue 14471041: Implement support for Math.imul in Crankshaft. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 8 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« src/math.js ('K') | « src/runtime.cc ('k') | no next file » | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: test/mjsunit/math-imul.js
diff --git a/test/mjsunit/math-imul.js b/test/mjsunit/math-imul.js
new file mode 100644
index 0000000000000000000000000000000000000000..e88605f7d47688fb6e749a142dae434033dfc86a
--- /dev/null
+++ b/test/mjsunit/math-imul.js
@@ -0,0 +1,148 @@
+// Copyright 2013 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.
+
+// Flags: --allow-natives-syntax --max-opt-count=1000
+
+var imul_func = Math.imul;
+function imul_polyfill(a, b) {
+ var ah = (a >>> 16) & 0xffff;
+ var al = a & 0xffff;
+ var bh = (b >>> 16) & 0xffff;
+ var bl = b & 0xffff;
+ return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0) | 0);
+}
+
+function TestMathImul(expected, a, b) {
+ function imul_meth_closure(a, b) { return Math.imul(a, b); }
+ function imul_func_closure(a, b) { return imul_func(a, b); }
+
+ // Test reference implementation.
+ assertEquals(expected, imul_polyfill(a, b));
+
+ // Test direct method call.
+ assertEquals(expected, Math.imul(a, b));
+
+ // Test direct function call.
+ assertEquals(expected, imul_func(a, b));
+
+ // Test optimized method call inside closure.
+ assertEquals(expected, imul_meth_closure(a, b));
+ assertEquals(expected, imul_meth_closure(a, b));
+ %OptimizeFunctionOnNextCall(imul_meth_closure);
+ assertEquals(expected, imul_meth_closure(a, b));
+
+ // Test optimized function call inside closure.
+ assertEquals(expected, imul_func_closure(a, b));
+ assertEquals(expected, imul_func_closure(a, b));
+ %OptimizeFunctionOnNextCall(imul_func_closure);
+ assertEquals(expected, imul_func_closure(a, b));
+
+ // Deoptimize closures and forget type feedback.
+ %DeoptimizeFunction(imul_meth_closure);
+ %DeoptimizeFunction(imul_func_closure);
+ %ClearFunctionTypeFeedback(imul_meth_closure);
+ %ClearFunctionTypeFeedback(imul_func_closure);
+}
+
+TestMathImul(8, 2, 4);
+TestMathImul(-8, -1, 8);
+TestMathImul(4, -2, -2);
+TestMathImul(-5, 0xffffffff, 5);
+TestMathImul(-10, 0xfffffffe, 5);
+
+TestMathImul(0, false, 7);
+TestMathImul(0, 7, false);
+TestMathImul(0, false, false);
+
+TestMathImul(7, true, 7);
+TestMathImul(7, 7, true);
+TestMathImul(1, true, true);
+
+TestMathImul(0, false, true);
+TestMathImul(0, true, false);
+
+TestMathImul(0, undefined, 7);
+TestMathImul(0, 7, undefined);
+TestMathImul(0, undefined, undefined);
+
+TestMathImul(0, -0, 7);
+TestMathImul(0, 7, -0);
+
+TestMathImul(0, 0.1, 7);
+TestMathImul(0, 7, 0.1);
+TestMathImul(0, 0.9, 7);
+TestMathImul(0, 7, 0.9);
+TestMathImul(7, 1.1, 7);
+TestMathImul(7, 7, 1.1);
+TestMathImul(7, 1.9, 7);
+TestMathImul(7, 7, 1.9);
+
+TestMathImul(0, "str", 7);
+TestMathImul(0, 7, "str");
+
+TestMathImul(0, {}, 7);
+TestMathImul(0, 7, {});
+
+TestMathImul(0, [], 7);
+TestMathImul(0, 7, []);
+
+// 2^30 is a smi boundary on arm and ia32.
+var two_30 = 1 << 30;
+
+TestMathImul(-two_30, two_30, 7);
+TestMathImul(-two_30, 7, two_30);
+TestMathImul(0, two_30, two_30);
+
+TestMathImul(two_30, -two_30, 7);
+TestMathImul(two_30, 7, -two_30);
+TestMathImul(0, -two_30, -two_30);
+
+// 2^31 is a smi boundary on x64.
+var two_31 = 2 * two_30;
+
+TestMathImul(-two_31, two_31, 7);
+TestMathImul(-two_31, 7, two_31);
+TestMathImul(0, two_31, two_31);
+
+TestMathImul(-two_31, -two_31, 7);
+TestMathImul(-two_31, 7, -two_31);
+TestMathImul(0, -two_31, -two_31);
+
+// 2^31 - 1 is the largest int32 value.
+var max_val = two_31 - 1;
+
+TestMathImul(two_31 - 7, max_val, 7);
+TestMathImul(two_31 - 7, 7, max_val);
+TestMathImul(1, max_val, max_val);
+
+// 2^16 is a boundary value that overflows when squared.
+var two_16 = 1 << 16;
+
+TestMathImul(0, two_16, two_16);
+TestMathImul(-two_16, two_16 - 1, two_16);
+TestMathImul(-two_16, two_16, two_16 - 1);
+TestMathImul(-2 * two_16 + 1, two_16 - 1, two_16 - 1);
« src/math.js ('K') | « src/runtime.cc ('k') | no next file » | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698