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// Copyright 2010 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.
// Test for a broken fast-smi-loop that does not save the incremented value
// of the loop index. If this test fails, it loops forever, and times out.
// Flags: --nofull-compiler
// Calling foo() spills the virtual frame.
function foo() {
return;
}
function bar() {
var x1 = 3;
var x2 = 3;
var x3 = 3;
var x4 = 3;
var x5 = 3;
var x6 = 3;
var x7 = 3;
var x8 = 3;
var x9 = 3;
var x10 = 3;
var x11 = 3;
var x12 = 3;
var x13 = 3;
foo();
x1 = 257;
x2 = 258;
x3 = 259;
x4 = 260;
x5 = 261;
x6 = 262;
x7 = 263;
x8 = 264;
x9 = 265;
x10 = 266;
x11 = 267;
x12 = 268;
x13 = 269;
// The loop variable x7 is initialized to 3,
// and then MakeMergeable is called on the virtual frame.
// MakeMergeable has forced the loop variable x7 to be spilled,
// so it is marked as synced
// The back edge then merges its virtual frame, which incorrectly
// claims that x7 is synced, and does not save the modified
// value.
for (x7 = 3; x7 < 10; ++x7) {
foo();
}
}
bar();
function aliasing() {
var x = 3;
var j;
for (j = 7; j < 11; ++j) {
x = j;
}
assertEquals(10, x);
assertEquals(11, j);
}
aliasing();
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