Index: test/mjsunit/compiler/slice-call-arguments.js |
diff --git a/test/mjsunit/compiler/slice-call-arguments.js b/test/mjsunit/compiler/slice-call-arguments.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ae25909f461f5b4e0b04bb627cf437b553b94dfd |
--- /dev/null |
+++ b/test/mjsunit/compiler/slice-call-arguments.js |
@@ -0,0 +1,203 @@ |
+// Copyright 2014 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 --noalways-opt |
+ |
+// Scope so that slice has no type feedback |
+(function() { |
+ var slice = [].slice; |
+ var not_slice = [].shift; |
+ |
+ function makeCopier(lower, upper) { |
+ switch (arguments.length) { |
+ case 2: |
+ var ret = new Function( |
+ "return [].slice.call(arguments, lower, upper);" |
+ .replace("lower", lower) |
+ .replace("upper", upper)); |
+ ret.lower = lower; |
+ ret.upper = upper; |
+ return ret; |
+ case 1: |
+ var ret = new Function( |
+ "return [].slice.call(arguments, lower);" |
+ .replace("lower", lower)); |
+ ret.lower = lower; |
+ return ret; |
+ } |
+ } |
+ |
+ function verify(fn, args) { |
+ fn(); fn(); |
+ %OptimizeFunctionOnNextCall(fn); |
+ fn(); |
+ fn(); |
+ assertOptimized(fn); |
+ assertArrayEquals(fn(), []); |
+ var returned_value = fn.apply(void 0, args); |
+ assertTrue(Array.isArray(returned_value)); |
+ var lower = fn.lower; |
+ var upper = fn.upper; |
+ var expected = args.slice(lower, upper); |
+ assertArrayEquals(expected, returned_value); |
+ } |
+ |
+ function plainCopy() { |
+ return slice.call(arguments); |
+ } |
+ |
+ verify(plainCopy, [1,2,3]); |
+ verify(plainCopy, []); |
+ |
+ var arr = [1,2,3,1,2,3,1,2,3,1,2,3,1,2,3,1,2,3]; |
+ verify(makeCopier(-1), arr); |
+ verify(makeCopier(1), arr); |
+ verify(makeCopier(-4, -10), arr); |
+ verify(makeCopier(3, -2), arr); |
+ verify(makeCopier(-5), arr); |
+ verify(makeCopier(3, -1), arr); |
+ verify(makeCopier(0, 0), arr); |
+ verify(makeCopier(1, 0), arr); |
+ verify(makeCopier(0, 1), arr); |
+ verify(makeCopier(-1, 1), arr); |
+ verify(makeCopier(-100), arr); |
+ verify(makeCopier(-100, -100), arr); |
+ verify(makeCopier(-10, -5), arr); |
+ verify(makeCopier(10, -5), arr); |
+ verify(makeCopier(-123, 72), arr); |
+ verify(makeCopier(-1, -1), arr); |
+ verify(makeCopier(3, -1), arr); |
+ |
+ var arr = [1, 2, 3]; |
+ |
+ verify(makeCopier(-1), arr); |
+ verify(makeCopier(1), arr); |
+ verify(makeCopier(-4, -10), arr); |
+ verify(makeCopier(3, -2), arr); |
+ verify(makeCopier(-5), arr); |
+ verify(makeCopier(3, -1), arr); |
+ verify(makeCopier(0, 0), arr); |
+ verify(makeCopier(1, 0), arr); |
+ verify(makeCopier(0, 1), arr); |
+ verify(makeCopier(-1, 1), arr); |
+ verify(makeCopier(-100), arr); |
+ verify(makeCopier(-100, -100), arr); |
+ verify(makeCopier(-10, -5), arr); |
+ verify(makeCopier(10, -5), arr); |
+ verify(makeCopier(-123, 72), arr); |
+ verify(makeCopier(-1, -1), arr); |
+ verify(makeCopier(3, -1), arr); |
+ |
+ var arr = []; |
+ |
+ verify(makeCopier(-1), arr); |
+ verify(makeCopier(1), arr); |
+ verify(makeCopier(-4, -10), arr); |
+ verify(makeCopier(3, -2), arr); |
+ verify(makeCopier(-5), arr); |
+ verify(makeCopier(3, -1), arr); |
+ verify(makeCopier(0, 0), arr); |
+ verify(makeCopier(1, 0), arr); |
+ verify(makeCopier(0, 1), arr); |
+ verify(makeCopier(-1, 1), arr); |
+ verify(makeCopier(-100), arr); |
+ verify(makeCopier(-100, -100), arr); |
+ verify(makeCopier(-10, -5), arr); |
+ verify(makeCopier(10, -5), arr); |
+ verify(makeCopier(-123, 72), arr); |
+ verify(makeCopier(-1, -1), arr); |
+ verify(makeCopier(3, -1), arr); |
+ |
+ function calls_not_slice() { |
+ return not_slice.call(arguments); |
+ } |
+ |
+ calls_not_slice(); |
+ calls_not_slice(); |
+ %OptimizeFunctionOnNextCall(calls_not_slice); |
+ calls_not_slice(); |
+ assertUnoptimized(calls_not_slice); |
+ calls_not_slice(); |
+ calls_not_slice(); |
+ %OptimizeFunctionOnNextCall(calls_not_slice); |
+ calls_not_slice(); |
+ assertUnoptimized(calls_not_slice); |
+ |
+ function calls_slice_that_changes() { |
+ return slice.call(arguments); |
+ } |
+ |
+ calls_slice_that_changes(); |
+ calls_slice_that_changes(); |
+ %OptimizeFunctionOnNextCall(calls_slice_that_changes); |
+ calls_slice_that_changes(); |
+ assertOptimized(calls_slice_that_changes); |
+ |
+ slice = function(){}; |
+ calls_slice_that_changes(); |
+ assertUnoptimized(calls_slice_that_changes); |
+ calls_slice_that_changes(); |
+ calls_slice_that_changes(); |
+ %OptimizeFunctionOnNextCall(calls_slice_that_changes); |
+ calls_slice_that_changes(); |
+ assertUnoptimized(calls_slice_that_changes); |
+ |
+ slice = [].slice; |
+ function lotsOfArguments() { |
+ return slice.call(arguments); |
+ } |
+ |
+ var arr = new Array(100000); |
+ for (var i = 0; i < arr.length; ++i) arr[i] = i; |
+ |
+ assertArrayEquals([1,2,3], lotsOfArguments(1,2,3)); |
+ assertArrayEquals([1,2,3], lotsOfArguments(1,2,3)); |
+ %OptimizeFunctionOnNextCall(lotsOfArguments); |
+ assertArrayEquals([1,2,3], lotsOfArguments(1,2,3)); |
+ assertOptimized(lotsOfArguments); |
+ var result = lotsOfArguments.apply(void 0, arr); |
+ assertArrayEquals(arr, result); |
+ assertUnoptimized(lotsOfArguments); |
+ |
+ |
+ var o = { |
+ callsInline: function caller() { |
+ return this.toBeInlined(1, 2, 3, 4, 5); |
+ }, |
+ toBeInlined: function callee() { |
+ return slice.call(arguments); |
+ } |
+ }; |
+ |
+ assertArrayEquals([1,2,3,4,5], o.callsInline()); |
+ assertArrayEquals([1,2,3,4,5], o.callsInline()); |
+ %OptimizeFunctionOnNextCall(o.callsInline); |
+ assertArrayEquals([1,2,3,4,5], o.callsInline()); |
+ assertOptimized(o.callsInline); |
+ assertArrayEquals([1,2,3,4,5], o.callsInline()); |
+ |
+})(); |