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// Copyright 2015 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 --noalways-opt --turbo-filter=*
var stubs = %GetCodeStubExportsObject();
const kExtraTypeFeedbackMinusZeroSentinel = 1;
const kFirstJSFunctionTypeFeedbackIndex = 5;
const kFirstSlotExtraTypeFeedbackIndex = 5;
(function() {
var stub1 = stubs.MathFloorStub("MathFloorStub", 1);
var tempForTypeVector = function(d) {
return Math.round(d);
}
tempForTypeVector(5);
var tv = %GetTypeFeedbackVector(tempForTypeVector);
var floorFunc1 = function(v, first) {
if (first) return;
return stub1(stub1, kFirstSlotExtraTypeFeedbackIndex - 1, tv, undefined, v);
};
%OptimizeFunctionOnNextCall(stub1);
floorFunc1(5, true);
%FixedArraySet(tv, kFirstSlotExtraTypeFeedbackIndex - 1, stub1);
assertTrue(kExtraTypeFeedbackMinusZeroSentinel !==
%FixedArrayGet(tv, kFirstSlotExtraTypeFeedbackIndex));
assertEquals(5.0, floorFunc1(5.5));
assertTrue(kExtraTypeFeedbackMinusZeroSentinel !==
%FixedArrayGet(tv, kFirstSlotExtraTypeFeedbackIndex));
// Executing floor such that it returns -0 should set the proper sentinel in
// the feedback vector.
assertEquals(-Infinity, 1/floorFunc1(-0));
assertEquals(kExtraTypeFeedbackMinusZeroSentinel,
%FixedArrayGet(tv, kFirstSlotExtraTypeFeedbackIndex));
%ClearFunctionTypeFeedback(floorFunc1);
})();
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