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Diffstat (limited to 'test/mjsunit/compiler/regress-loadfield.js')
-rw-r--r-- | test/mjsunit/compiler/regress-loadfield.js | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/test/mjsunit/compiler/regress-loadfield.js b/test/mjsunit/compiler/regress-loadfield.js new file mode 100644 index 00000000..a2028919 --- /dev/null +++ b/test/mjsunit/compiler/regress-loadfield.js @@ -0,0 +1,65 @@ +// Copyright 2011 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. + +// Regression test for GVN on field loads. + +function bar() {} + +// Make sure there is a transition on adding "bar" inobject property. +var b = new bar(); +b.bar = "bar"; + +function test(a) { + var b = new Array(10); + for (var i = 0; i < 10; i++) { + b[i] = new bar(); + } + + for (var i = 0; i < 10; i++) { + b[i].bar = a.foo; + } +} + +// Create an object with fast backing store properties. +var a = {}; +a.p1 = ""; +a.p2 = ""; +a.p3 = ""; +a.p4 = ""; +a.p5 = ""; +a.p6 = ""; +a.p7 = ""; +a.p8 = ""; +a.p9 = ""; +a.p10 = ""; +a.p11 = ""; +a.foo = "foo"; +for (var i = 0; i < 100000; i++) { + test(a); +} + +test(""); |