From db4a770c3fa9113e20af549cb0b65803f3d2a9b9 Mon Sep 17 00:00:00 2001 From: "mstarzinger@chromium.org" Date: Tue, 21 May 2013 14:20:42 +0000 Subject: [PATCH] Add regression test for fix from r14732. R=verwaest@chromium.org BUG=chromium:242502 TEST=mjsunit/regress/regress-crbug-242502 Review URL: https://codereview.chromium.org/15288008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 --- test/mjsunit/regress/regress-crbug-242502.js | 66 ++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 test/mjsunit/regress/regress-crbug-242502.js diff --git a/test/mjsunit/regress/regress-crbug-242502.js b/test/mjsunit/regress/regress-crbug-242502.js new file mode 100644 index 0000000..8ee7640 --- /dev/null +++ b/test/mjsunit/regress/regress-crbug-242502.js @@ -0,0 +1,66 @@ +// 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: --expose-gc --allow-natives-syntax + +function f() { + return 23; +} + +function call(o) { + return o[''](); +} + +function test() { + var o1 = %ToFastProperties(Object.create({ foo:1 }, { '': { value:f }})); + var o2 = %ToFastProperties(Object.create({ bar:1 }, { '': { value:f }})); + var o3 = %ToFastProperties(Object.create({ baz:1 }, { '': { value:f }})); + var o4 = %ToFastProperties(Object.create({ qux:1 }, { '': { value:f }})); + var o5 = %ToFastProperties(Object.create({ loo:1 }, { '': { value:f }})); + // Called twice on o1 to turn monomorphic. + assertEquals(23, call(o1)); + assertEquals(23, call(o1)); + // Called on four other objects to turn megamorphic. + assertEquals(23, call(o2)); + assertEquals(23, call(o3)); + assertEquals(23, call(o4)); + assertEquals(23, call(o5)); + return o1; +} + +// Fill stub cache with entries. +test(); + +// Clear stub cache during GC. +gc(); + +// Turn IC megamorphic again. +var oboom = test(); + +// Optimize with previously cleared stub cache. +%OptimizeFunctionOnNextCall(call); +assertEquals(23, call(oboom)); -- 2.7.4