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// 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: --allow-natives-syntax --opt --no-always-opt
deopt_trigger = 0;
side_effect = 0;
function test(a, b, c, d, e, v) {
// This test expects some specific input values.
assertEquals(10.0, a);
assertEquals(20.0, b);
assertEquals(30.0, c);
assertEquals(40.0, d);
assertEquals(50.0, e);
assertEquals(1.5, v);
// Perform a few double calculations.
a = a * 0.1;
b = b * 0.2;
c = c * 0.3;
d = d * 0.4;
e = e * 0.5;
// Write to a field of a global object. As for any side effect, a HSimulate
// will be introduced after the instructions to support this. If we deopt
// later in this function, the execution will resume in full-codegen after
// this point.
side_effect++;
// The following field of the global object will be deleted to force a deopt.
// If we use type feedback to deopt, then tests ran with --stress-opt will
// not deopt after a few iteration.
// If we use %DeoptimizeFunction, all values will be on the frame due to the
// call and we will not exercise the translation mechanism handling fp
// registers.
deopt_trigger = v;
// Do a few more calculations using the previous values after our deopt point
// so the floating point registers which hold those values are recorded in the
// environment and will be used during deoptimization.
a = a * v;
b = b * v;
c = c * v;
d = d * v;
e = e * v;
// Check that we got the expected results.
assertEquals(1.5, a);
assertEquals(6, b);
assertEquals(13.5, c);
assertEquals(24, d);
assertEquals(37.5, e);
}
test(10.0, 20.0, 30.0, 40.0, 50.0, 1.5);
test(10.0, 20.0, 30.0, 40.0, 50.0, 1.5);
%OptimizeFunctionOnNextCall(test);
test(10.0, 20.0, 30.0, 40.0, 50.0, 1.5);
assertOptimized(test);
// By deleting the field we are forcing the code to deopt when the field is
// read on next execution.
delete deopt_trigger;
test(10.0, 20.0, 30.0, 40.0, 50.0, 1.5);
assertUnoptimized(test);
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