inline-arity-mismatch.js 2.2 KB
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// 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 inlining at call sites with mismatched arity.

function f(a) {
  return a.x;
}

function g(a, b) {
  return a.x;
}

function h1(a, b) {
  return f(a, a) * g(b);
}

function h2(a, b) {
  return f(a, a) * g(b);
}


var o = {x: 2};

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%PrepareFunctionForOptimization(h1);
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assertEquals(4, h1(o, o));
assertEquals(4, h1(o, o));
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%OptimizeFunctionOnNextCall(h1);
assertEquals(4, h1(o, o));

%PrepareFunctionForOptimization(h2);
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assertEquals(4, h2(o, o));
assertEquals(4, h2(o, o));
%OptimizeFunctionOnNextCall(h2);
assertEquals(4, h2(o, o));

var u = {y:0, x:1};
assertEquals(2, h1(u, o));
assertEquals(2, h2(o, u));