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Diffstat (limited to 'src/3rdparty/v8/test/mjsunit/regress/regress-2261.js')
-rw-r--r-- | src/3rdparty/v8/test/mjsunit/regress/regress-2261.js | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/3rdparty/v8/test/mjsunit/regress/regress-2261.js b/src/3rdparty/v8/test/mjsunit/regress/regress-2261.js new file mode 100644 index 0000000..000e07d --- /dev/null +++ b/src/3rdparty/v8/test/mjsunit/regress/regress-2261.js @@ -0,0 +1,113 @@ +// Copyright 2012 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 + +// Test materialization of the arguments object when deoptimizing a +// strict mode closure after modifying an argument. + +(function () { + var forceDeopt = 0; + function inner(x) { + "use strict"; + x = 2; + // Do not remove this %DebugPrint as it makes sure the deopt happens + // after the assignment and is not hoisted above the assignment. + %DebugPrint(arguments[0]); + forceDeopt + 1; + return arguments[0]; + } + + assertEquals(1, inner(1)); + assertEquals(1, inner(1)); + %OptimizeFunctionOnNextCall(inner); + assertEquals(1, inner(1)); + forceDeopt = "not a number"; + assertEquals(1, inner(1)); +})(); + + +// Test materialization of the arguments object when deoptimizing an +// inlined strict mode closure after modifying an argument. + +(function () { + var forceDeopt = 0; + function inner(x) { + "use strict"; + x = 2; + // Do not remove this %DebugPrint as it makes sure the deopt happens + // after the assignment and is not hoisted above the assignment. + %DebugPrint(arguments[0]); + forceDeopt + 1; + return arguments[0]; + } + + function outer(x) { + return inner(x); + } + + assertEquals(1, outer(1)); + assertEquals(1, outer(1)); + %OptimizeFunctionOnNextCall(outer); + assertEquals(1, outer(1)); + forceDeopt = "not a number"; + assertEquals(1, outer(1)); +})(); + + +// Test materialization of the multiple arguments objects when +// deoptimizing several inlined closure after modifying an argument. + +(function () { + var forceDeopt = 0; + function inner(x,y,z) { + "use strict"; + x = 3; + // Do not remove this %DebugPrint as it makes sure the deopt happens + // after the assignment and is not hoisted above the assignment. + %DebugPrint(arguments[0]); + forceDeopt + 1; + return arguments[0]; + } + + function middle(x) { + "use strict"; + x = 2; + return inner(10*x, 20*x, 30*x) + arguments[0]; + } + + function outer(x) { + return middle(x); + } + + assertEquals(21, outer(1)); + assertEquals(21, outer(1)); + %OptimizeFunctionOnNextCall(outer); + assertEquals(21, outer(1)); + forceDeopt = "not a number"; + assertEquals(21, outer(1)); +})(); |