55e32d2f3b
Keyed store stub sits high in sorting profiles. Swapping allows to save us additional type checks as we could both read and write elmenets (on fast path) without them. Review URL: http://codereview.chromium.org/1709008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4551 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
208 lines
6.6 KiB
JavaScript
208 lines
6.6 KiB
JavaScript
// Copyright 2008 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
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var RUN_WITH_ALL_ARGUMENT_ENTRIES = false;
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var kOnManyArgumentsRemove = 5;
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function makeArguments() {
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var result = [ ];
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result.push(17);
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result.push(-31);
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result.push(new Array(100));
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result.push(new Array(100003));
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result.push(Number.MIN_VALUE);
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result.push("whoops");
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result.push("x");
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result.push({"x": 1, "y": 2});
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var slowCaseObj = {"a": 3, "b": 4, "c": 5};
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delete slowCaseObj.c;
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result.push(slowCaseObj);
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result.push(function () { return 8; });
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return result;
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}
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var kArgObjects = makeArguments().length;
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function makeFunction(name, argc) {
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var args = [];
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for (var i = 0; i < argc; i++)
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args.push("x" + i);
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var argsStr = args.join(", ");
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return new Function(args.join(", "), "return %" + name + "(" + argsStr + ");");
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}
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function testArgumentCount(name, argc) {
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for (var i = 0; i < 10; i++) {
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var func = null;
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try {
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func = makeFunction(name, i);
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} catch (e) {
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if (e != "SyntaxError: illegal access") throw e;
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}
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if (func === null && i == argc) {
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throw "unexpected exception";
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}
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var args = [ ];
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for (var j = 0; j < i; j++)
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args.push(0);
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try {
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func.apply(void 0, args);
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} catch (e) {
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// we don't care what happens as long as we don't crash
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}
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}
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}
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function testArgumentTypes(name, argc) {
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var type = 0;
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var hasMore = true;
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var func = makeFunction(name, argc);
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while (hasMore) {
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var argPool = makeArguments();
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// When we have 5 or more arguments we lower the amount of tests cases
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// by randomly removing kOnManyArgumentsRemove entries
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var numArguments = RUN_WITH_ALL_ARGUMENT_ENTRIES ?
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kArgObjects : kArgObjects-kOnManyArgumentsRemove;
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if (argc >= 5 && !RUN_WITH_ALL_ARGUMENT_ENTRIES) {
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for (var i = 0; i < kOnManyArgumentsRemove; i++) {
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var rand = Math.floor(Math.random() * (kArgObjects - i));
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argPool.splice(rand,1);
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}
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}
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var current = type;
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var hasMore = false;
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var argList = [ ];
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for (var i = 0; i < argc; i++) {
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var index = current % numArguments;
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current = (current / numArguments) << 0;
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if (index != (numArguments - 1))
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hasMore = true;
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argList.push(argPool[index]);
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}
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try {
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func.apply(void 0, argList);
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} catch (e) {
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// we don't care what happens as long as we don't crash
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}
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type++;
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}
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}
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var knownProblems = {
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"Abort": true,
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// Avoid calling the concat operation, because weird lengths
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// may lead to out-of-memory.
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"StringBuilderConcat": true,
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// These functions use pseudo-stack-pointers and are not robust
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// to unexpected integer values.
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"DebugEvaluate": true,
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// These functions do nontrivial error checking in recursive calls,
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// which means that we have to propagate errors back.
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"SetFunctionBreakPoint": true,
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"SetScriptBreakPoint": true,
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"ChangeBreakOnException": true,
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"PrepareStep": true,
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// Too slow.
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"DebugReferencedBy": true,
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// Calling disable/enable access checks may interfere with the
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// the rest of the tests.
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"DisableAccessChecks": true,
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"EnableAccessChecks": true,
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// These functions should not be callable as runtime functions.
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"NewContext": true,
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"NewArgumentsFast": true,
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"PushContext": true,
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"LazyCompile": true,
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"CreateObjectLiteralBoilerplate": true,
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"CloneLiteralBoilerplate": true,
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"CloneShallowLiteralBoilerplate": true,
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"CreateArrayLiteralBoilerplate": true,
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"IS_VAR": true,
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"ResolvePossiblyDirectEval": true,
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"Log": true,
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"DeclareGlobals": true,
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"PromoteScheduledException": true,
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"DeleteHandleScopeExtensions": true,
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// That can only be invoked on Array.prototype.
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"FinishArrayPrototypeSetup": true,
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"_SwapElements": true,
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// Performance critical function which cannot afford type checks.
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"_CallFunction": true,
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// Tries to allocate based on argument, and (correctly) throws
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// out-of-memory if the request is too large. In practice, the
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// size will be the number of captures of a RegExp.
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"RegExpConstructResult": true,
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"_RegExpConstructResult": true,
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// This function performs some checks compile time (it requires its first
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// argument to be a compile time smi).
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"_GetFromCache": true,
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// LiveEdit feature is under development currently and has fragile input.
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"LiveEditFindSharedFunctionInfosForScript": true,
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"LiveEditGatherCompileInfo": true,
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"LiveEditReplaceScript": true,
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"LiveEditReplaceFunctionCode": true,
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"LiveEditRelinkFunctionToScript": true,
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"LiveEditPatchFunctionPositions": true,
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"LiveEditCheckStackActivations": true
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};
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var currentlyUncallable = {
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// We need to find a way to test this without breaking the system.
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"SystemBreak": true
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};
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function testNatives() {
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var allNatives = %ListNatives();
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for (var i = 0; i < allNatives.length; i++) {
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var nativeInfo = allNatives[i];
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var name = nativeInfo[0];
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if (name in knownProblems || name in currentlyUncallable)
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continue;
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print(name);
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var argc = nativeInfo[1];
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testArgumentCount(name, argc);
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testArgumentTypes(name, argc);
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}
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}
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testNatives();
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