[Isolates] Merge crankshaft (r5922 from bleeding_edge).

test/mjsunit/compiler/simple-inlining.js

+// Copyright 2010 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.
+
+// Test that we can inline a function that returns a constant.
+function TestInlineConstant(o) {
+  // Effect context.
+  o.f();
+  // Value context.
+  var x = o.f();
+  assertEquals(42, x);
+  assertEquals(42, o.f());
+  // Test context.
+  if (!o.f()) {
+    assertTrue(false);  // Should not happen.
+  }
+}
+
+var o1 = {};
+o1.f = function() { return 42; };
+for (var i = 0; i < 10000; i++) TestInlineConstant(o1);
+TestInlineConstant({f: o1.f});
+
+
+// Test that we can inline a function that returns 'this'.
+function TestInlineThis(o) {
+  // Effect context.
+  o.g();
+  // Value context.
+  var x = o.g();
+  assertEquals(o, x);
+  assertEquals(o, o.g());
+  // Test context.
+  if (!o.g()) {
+    assertTrue(false);  // Should not happen.
+  }
+}
+
+var o2 = {};
+o2.g = function() { return this; };
+for (var i = 0; i < 10000; i++) TestInlineThis(o2);
+TestInlineThis({g: o2.g});
+
+
+// Test that we can inline a function that returns 'this.x'.
+function TestInlineThisX(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.
+  }
+}
+
+var o3 = {y:0,x:42};
+o3.h = function() { return this.x; };
+for (var i = 0; i < 10000; i++) TestInlineThisX(o3);
+TestInlineThisX({h: o3.h, x:42});
+
+
+// Test that we can inline a function that returns 'this.x.length'.
+function TestInlineThisXLength(o) {
+  // Effect context.
+  o.h();
+  // Value context.
+  var x = o.h();
+  assertEquals(3, x);
+  assertEquals(3, o.h());
+  // Test context.
+  if (!o.h()) {
+    assertTrue(false);  // Should not happen.
+  }
+}
+
+var o4 = {x:[1,2,3]};
+o4.h = function() { return this.x.length; };
+for (var i = 0; i < 10000; i++) TestInlineThisXLength(o4);
+TestInlineThisXLength({h: o4.h, x:[1,2,3]});
+
+
+// Test that we can inline a function that returns 'this.x.y'.
+function TestInlineThisXY(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.
+  }
+}
+
+var o6 = {y:42}
+var o5 = {e:o6};
+o5.h = function() { return this.e.y; };
+for (var i = 0; i < 10000; i++) TestInlineThisXY(o5);
+TestInlineThisXY({h: o5.h, e:o6});
+
+
+// Test that we can inline a function that returns 'this.x.length'.
+function TestInlineThisX0(o) {
+  // Effect context.
+  o.foo();
+  // Value context.
+  var x = o.foo();
+  assertEquals(42, x);
+  assertEquals(42, o.foo());
+  // Test context.
+  if (!o.foo()) {
+    assertTrue(false);  // Should not happen.
+  }
+}
+
+var o7 = {x:[42,43,44]};
+o7.foo = function() { return this.x[0]; };
+for (var i = 0; i < 10000; i++) TestInlineThisX0(o7);
+TestInlineThisX0({foo: o7.foo, x:[42,0,0]});