529f801fde
we store an AllocationSiteInfo object right after the JSArray, with a pointer to the boilerplate object. Later, if the array transitions we check for the continued existence of the temporary AllocationSiteInfo object (has no roots). If found, we'll use it to transition the boilerplate array as well. Danno's original changeset: https://codereview.chromium.org/10615002/ Review URL: https://codereview.chromium.org/11663005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
318 lines
10 KiB
JavaScript
318 lines
10 KiB
JavaScript
// Copyright 2012 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --allow-natives-syntax --smi-only-arrays
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// Flags: --noparallel-recompilation
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// Test element kind of objects.
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// Since --smi-only-arrays affects builtins, its default setting at compile time
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// sticks if built with snapshot. If --smi-only-arrays is deactivated by
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// default, only a no-snapshot build actually has smi-only arrays enabled in
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// this test case. Depending on whether smi-only arrays are actually enabled,
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// this test takes the appropriate code path to check smi-only arrays.
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support_smi_only_arrays = %HasFastSmiElements([1,2,3,4,5,6,7,8,9,10]);
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if (support_smi_only_arrays) {
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print("Tests include smi-only arrays.");
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} else {
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print("Tests do NOT include smi-only arrays.");
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}
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// IC and Crankshaft support for smi-only elements in dynamic array literals.
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function get(foo) { return foo; } // Used to generate dynamic values.
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function array_natives_test() {
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// Ensure small array literals start in specific element kind mode.
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assertTrue(%HasFastSmiElements([]));
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assertTrue(%HasFastSmiElements([1]));
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assertTrue(%HasFastSmiElements([1,2]));
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assertTrue(%HasFastDoubleElements([1.1]));
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assertTrue(%HasFastDoubleElements([1.1,2]));
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// Push
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var a0 = [1, 2, 3];
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if (%HasFastSmiElements(a0)) {
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assertTrue(%HasFastSmiElements(a0));
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a0.push(4);
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assertTrue(%HasFastSmiElements(a0));
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a0.push(1.3);
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assertTrue(%HasFastDoubleElements(a0));
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a0.push(1.5);
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assertTrue(%HasFastDoubleElements(a0));
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a0.push({});
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assertTrue(%HasFastObjectElements(a0));
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a0.push({});
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assertTrue(%HasFastObjectElements(a0));
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} else {
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assertTrue(%HasFastObjectElements(a0));
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a0.push(4);
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a0.push(1.3);
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a0.push(1.5);
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a0.push({});
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a0.push({});
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assertTrue(%HasFastObjectElements(a0));
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}
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assertEquals([1,2,3,4,1.3,1.5,{},{}], a0);
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// Concat
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var a1;
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a1 = [1,2,3].concat([]);
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assertTrue(%HasFastSmiElements(a1));
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assertEquals([1,2,3], a1);
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a1 = [1,2,3].concat([4,5,6]);
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assertTrue(%HasFastSmiElements(a1));
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assertEquals([1,2,3,4,5,6], a1);
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a1 = [1,2,3].concat([4,5,6], [7,8,9]);
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assertTrue(%HasFastSmiElements(a1));
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assertEquals([1,2,3,4,5,6,7,8,9], a1);
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a1 = [1.1,2,3].concat([]);
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assertTrue(%HasFastDoubleElements(a1));
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assertEquals([1.1,2,3], a1);
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a1 = [1,2,3].concat([1.1, 2]);
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assertTrue(%HasFastDoubleElements(a1));
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assertEquals([1,2,3,1.1,2], a1);
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a1 = [1.1,2,3].concat([1, 2]);
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assertTrue(%HasFastDoubleElements(a1));
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assertEquals([1.1,2,3,1,2], a1);
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a1 = [1.1,2,3].concat([1.2, 2]);
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assertTrue(%HasFastDoubleElements(a1));
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assertEquals([1.1,2,3,1.2,2], a1);
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a1 = [1,2,3].concat([{}]);
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assertTrue(%HasFastObjectElements(a1));
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assertEquals([1,2,3,{}], a1);
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a1 = [1.1,2,3].concat([{}]);
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assertTrue(%HasFastObjectElements(a1));
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assertEquals([1.1,2,3,{}], a1);
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a1 = [{}].concat([1,2,3]);
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assertTrue(%HasFastObjectElements(a1));
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assertEquals([{},1,2,3], a1);
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a1 = [{}].concat([1.1,2,3]);
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assertTrue(%HasFastObjectElements(a1));
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assertEquals([{},1.1,2,3], a1);
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// Slice
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var a2 = [1,2,3];
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assertTrue(%HasFastSmiElements(a2.slice()));
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assertTrue(%HasFastSmiElements(a2.slice(1)));
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assertTrue(%HasFastSmiElements(a2.slice(1, 2)));
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assertEquals([1,2,3], a2.slice());
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assertEquals([2,3], a2.slice(1));
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assertEquals([2], a2.slice(1,2));
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a2 = [1.1,2,3];
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assertTrue(%HasFastDoubleElements(a2.slice()));
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assertTrue(%HasFastDoubleElements(a2.slice(1)));
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assertTrue(%HasFastDoubleElements(a2.slice(1, 2)));
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assertEquals([1.1,2,3], a2.slice());
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assertEquals([2,3], a2.slice(1));
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assertEquals([2], a2.slice(1,2));
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a2 = [{},2,3];
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assertTrue(%HasFastObjectElements(a2.slice()));
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assertTrue(%HasFastObjectElements(a2.slice(1)));
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assertTrue(%HasFastObjectElements(a2.slice(1, 2)));
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assertEquals([{},2,3], a2.slice());
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assertEquals([2,3], a2.slice(1));
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assertEquals([2], a2.slice(1,2));
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// Splice
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var a3 = [1,2,3];
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var a3r;
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a3r = a3.splice(0, 0);
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assertTrue(%HasFastSmiElements(a3r));
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assertTrue(%HasFastSmiElements(a3));
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assertEquals([], a3r);
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assertEquals([1, 2, 3], a3);
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a3 = [1,2,3];
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a3r = a3.splice(0, 1);
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assertTrue(%HasFastSmiElements(a3r));
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assertTrue(%HasFastSmiElements(a3));
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assertEquals([1], a3r);
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assertEquals([2, 3], a3);
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a3 = [1,2,3];
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a3r = a3.splice(0, 0, 2);
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assertTrue(%HasFastSmiElements(a3r));
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assertTrue(%HasFastSmiElements(a3));
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assertEquals([], a3r);
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assertEquals([2, 1, 2, 3], a3);
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a3 = [1,2,3];
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a3r = a3.splice(0, 1, 2);
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assertTrue(%HasFastSmiElements(a3r));
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assertTrue(%HasFastSmiElements(a3));
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assertEquals([1], a3r);
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assertEquals([2, 2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 0);
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assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([], a3r);
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assertEquals([1.1, 2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 1);
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assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([1.1], a3r);
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assertEquals([2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 0, 2);
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// Commented out since handled in js, which takes the best fit.
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// assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastSmiElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([], a3r);
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assertEquals([2, 1.1, 2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 1, 2);
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assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([1.1], a3r);
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assertEquals([2, 2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 0, 2.1);
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// Commented out since handled in js, which takes the best fit.
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// assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastSmiElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([], a3r);
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assertEquals([2.1, 1.1, 2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 1, 2.2);
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assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([1.1], a3r);
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assertEquals([2.2, 2, 3], a3);
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a3 = [1,2,3];
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a3r = a3.splice(0, 0, 2.1);
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// Commented out since handled in js, which takes the best fit.
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// assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastSmiElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([], a3r);
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assertEquals([2.1, 1, 2, 3], a3);
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a3 = [1,2,3];
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a3r = a3.splice(0, 1, 2.2);
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assertTrue(%HasFastDoubleElements(a3r));
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assertTrue(%HasFastDoubleElements(a3));
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assertEquals([1], a3r);
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assertEquals([2.2, 2, 3], a3);
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a3 = [{},2,3];
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a3r = a3.splice(0, 0);
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assertTrue(%HasFastObjectElements(a3r));
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assertTrue(%HasFastObjectElements(a3));
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assertEquals([], a3r);
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assertEquals([{}, 2, 3], a3);
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a3 = [1,2,{}];
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a3r = a3.splice(0, 1);
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assertTrue(%HasFastObjectElements(a3r));
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assertTrue(%HasFastObjectElements(a3));
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assertEquals([1], a3r);
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assertEquals([2, {}], a3);
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a3 = [1,2,3];
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a3r = a3.splice(0, 0, {});
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assertTrue(%HasFastObjectElements(a3r));
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assertTrue(%HasFastObjectElements(a3));
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assertEquals([], a3r);
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assertEquals([{}, 1, 2, 3], a3);
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a3 = [1,2,3];
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a3r = a3.splice(0, 1, {});
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assertTrue(%HasFastObjectElements(a3r));
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assertTrue(%HasFastObjectElements(a3));
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assertEquals([1], a3r);
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assertEquals([{}, 2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 0, {});
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assertTrue(%HasFastObjectElements(a3r));
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assertTrue(%HasFastObjectElements(a3));
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assertEquals([], a3r);
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assertEquals([{}, 1.1, 2, 3], a3);
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a3 = [1.1,2,3];
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a3r = a3.splice(0, 1, {});
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assertTrue(%HasFastObjectElements(a3r));
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assertTrue(%HasFastObjectElements(a3));
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assertEquals([1.1], a3r);
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assertEquals([{}, 2, 3], a3);
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// Pop
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var a4 = [1,2,3];
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assertEquals(3, a4.pop());
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assertTrue(%HasFastSmiElements(a4));
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a4 = [1.1,2,3];
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assertEquals(3, a4.pop());
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assertTrue(%HasFastDoubleElements(a4));
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a4 = [{},2,3];
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assertEquals(3, a4.pop());
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assertTrue(%HasFastObjectElements(a4));
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// Shift
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var a4 = [1,2,3];
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assertEquals(1, a4.shift());
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assertTrue(%HasFastSmiElements(a4));
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a4 = [1.1,2,3];
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assertEquals(1.1, a4.shift());
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assertTrue(%HasFastDoubleElements(a4));
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a4 = [{},2,3];
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assertEquals({}, a4.shift());
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assertTrue(%HasFastObjectElements(a4));
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// Unshift
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var a4 = [1,2,3];
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a4.unshift(1);
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assertTrue(%HasFastSmiElements(a4));
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assertEquals([1,1,2,3], a4);
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a4 = [1,2,3];
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a4.unshift(1.1);
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// TODO(verwaest): We'll want to support double unshifting as well.
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// assertTrue(%HasFastDoubleElements(a4));
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assertTrue(%HasFastObjectElements(a4));
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assertEquals([1.1,1,2,3], a4);
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a4 = [1.1,2,3];
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a4.unshift(1);
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// assertTrue(%HasFastDoubleElements(a4));
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assertTrue(%HasFastObjectElements(a4));
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assertEquals([1,1.1,2,3], a4);
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a4 = [{},2,3];
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a4.unshift(1);
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assertTrue(%HasFastObjectElements(a4));
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assertEquals([1,{},2,3], a4);
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a4 = [{},2,3];
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a4.unshift(1.1);
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assertTrue(%HasFastObjectElements(a4));
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assertEquals([1.1,{},2,3], a4);
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}
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if (support_smi_only_arrays) {
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for (var i = 0; i < 3; i++) {
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array_natives_test();
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}
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%OptimizeFunctionOnNextCall(array_natives_test);
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array_natives_test();
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}
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