v8/test/mjsunit/regress/regress-1145.js
lrn@chromium.org 485f4ea0d9 Clear exceptions set during attempts to lazily optimize.
Resubmit of patch for issue 1145 with a few additions:
- Now also clears exceptions when calling Runtime_LazyRecompile.
- Sets function where parsing fails to not be optimizable.

BUG=v8:1145
TEST=test/mjsunit/regress/regress-1145.js

Review URL: http://codereview.chromium.org/6469050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6945 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-02-25 11:17:31 +00:00

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JavaScript

// 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.
// Flags: --opt-eagerly --debug-code --lazy
// See: http://code.google.com/p/v8/issues/detail?id=1145
// Should not throw a syntax error exception (change this if we make lazily
// compiled functions with syntax errors into early errors).
// Should not hit an assertion in debug mode.
// A lazily compiled function with a syntax error that is attempted inlined
// would set a pending exception that is then ignored (until it triggers
// an assert).
// This file must be at least 1024 bytes long to trigger lazy compilation.
function f() { return 1; }
// Must be lazy. Must throw SyntaxError during compilation.
function fail() { continue; }
function opt_me() {
var x = 1;
// Do lots of function calls and hope to be optimized.
for (var i = 0; i < 1000000; i++) {
x = f();
}
if (x == 0) fail(); // Hope to be inlined during optimization.
}
opt_me();