test/mjsunit/regress/regress-1229.js

// Copyright 2011 the V8 project authors. All rights reserved.
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// Flags: --allow-natives-syntax

// Check that %NewObjectFromBound works correctly when called from optimized
// frame.
function foo(x, y, z) {
  assertEquals(1, x);
  assertEquals(2, y);
  assertEquals(3, z);
}

var bound_arg = [1];

function f(y, z) {
  return %NewObjectFromBound(foo, bound_arg);
}

// Check that %NewObjectFromBound looks at correct frame for inlined function.
function g(z, y) {
  return f(y, z); /* f should be inlined into g, note rotated arguments */
}

// Check that %NewObjectFromBound looks at correct frame for inlined function.
function ff(x) { }
function h(z2, y2) {
  var local_z = z2 >> 1;
  ff(local_z);
  var local_y = y2 >> 1;
  ff(local_y);
  return f(local_y, local_z); /* f should be inlined into h */
}

for (var i = 0; i < 5; i++) f(2, 3);
%OptimizeFunctionOnNextCall(f);
f(2, 3);

for (var i = 0; i < 5; i++) g(3, 2);
%OptimizeFunctionOnNextCall(g);
g(3, 2);

for (var i = 0; i < 5; i++) h(6, 4);
%OptimizeFunctionOnNextCall(h);
h(6, 4);

// Check that %_IsConstructCall returns correct value when inlined
var NON_CONSTRUCT_MARKER = {};
var CONSTRUCT_MARKER = {};
function baz() {
  return (!%_IsConstructCall()) ? NON_CONSTRUCT_MARKER : CONSTRUCT_MARKER;
}

function bar(x, y, z) {
  var non_construct = baz(); /* baz should be inlined */
  assertEquals(non_construct, NON_CONSTRUCT_MARKER);
  var construct = new baz();
  assertEquals(construct, CONSTRUCT_MARKER);
}

for (var i = 0; i < 5; i++) new bar(1, 2, 3);
%OptimizeFunctionOnNextCall(bar);
bar(1, 2, 3);