v8/test/mjsunit/compiler/inline-two.js

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// Flags: --allow-natives-syntax

// Test that we can inline a function that calls another function.
function TestInlineX(o) {
  // Effect context.
  o.g();
  // Value context.
  var x = o.g();
  assertEquals(42, x);
  assertEquals(42, o.g());
  // Test context.
  if (!o.g()) {
    assertTrue(false);  // Should not happen.
  }
}

%PrepareFunctionForOptimization(TestInlineX);
var o2 = {};
o2.size = function() { return 42; }
o2.g = function() { return this.size(); };
for (var i = 0; i < 5; i++) TestInlineX(o2);
%OptimizeFunctionOnNextCall(TestInlineX);
TestInlineX(o2);
TestInlineX({g: o2.g, size:o2.size});


// Test that we can inline a call on a non-variable receiver.
function TestInlineX2(o) {
  // Effect context.
  o.h();
  // Value context.
  var x = o.h();
  assertEquals(42, x);
  assertEquals(42, o.h());
  // Test context.
  if (!o.h()) {
    assertTrue(false);  // Should not happen.
  }
}

%PrepareFunctionForOptimization(TestInlineX2);
var obj = {}
obj.foo = function() { return 42; }
var o3 = {};
o3.v = obj;
o3.h = function() { return this.v.foo(); };
for (var i = 0; i < 5; i++) TestInlineX2(o3);
%OptimizeFunctionOnNextCall(TestInlineX2);
TestInlineX2(o3);
TestInlineX2({h: o3.h, v:obj});


// Test that we can inline a call on a non-variable receiver.
function TestInlineFG(o) {
  // Effect context.
  o.h();
  // Value context.
  var x = o.h();
  assertEquals(42, x);
  assertEquals(42, o.h());
  // Test context.
  if (!o.h()) {
    assertTrue(false);  // Should not happen.
  }
}

%PrepareFunctionForOptimization(TestInlineFG);
var obj = {}
obj.g = function() { return 42; }
var o3 = {};
o3.v = obj;
o3.f = function() { return this.v; }
o3.h = function() { return this.f().g(); };
for (var i = 0; i < 5; i++) TestInlineFG(o3);
%OptimizeFunctionOnNextCall(TestInlineFG);
TestInlineFG(o3);
TestInlineFG({h: o3.h, f: o3.f, v:obj});