Implement fast literal support in Crankshaft.

test/mjsunit/compiler/literals-optimized.js

+// 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 optimized versions of array and object literals.
+
+function TestOptimizedLiteral(create, verify) {
+  verify(create(1, 2, 3), 1, 2, 3);
+  verify(create(3, 5, 7), 3, 5, 7);
+  %OptimizeFunctionOnNextCall(create);
+  verify(create(11, 23, 42), 11, 23, 42);
+}
+
+
+// Test shallow array literal.
+function create_arr_shallow(a, b, c) {
+  return [0, a, 0, b, 0, c];
+}
+function verify_arr_shallow(array, a, b, c) {
+  assertSame(6, array.length);
+  assertSame(0, array[0]);
+  assertSame(a, array[1]);
+  assertSame(0, array[2]);
+  assertSame(b, array[3]);
+  assertSame(0, array[4]);
+  assertSame(c, array[5]);
+}
+TestOptimizedLiteral(create_arr_shallow, verify_arr_shallow);
+
+
+// Test nested array literal.
+function create_arr_nested(a, b, c) {
+  return [[0, a], [b, c], [1, 2], 3];
+}
+function verify_arr_nested(array, a, b, c) {
+  assertSame(4, array.length);
+  assertSame(2, array[0].length);
+  assertSame(0, array[0][0]);
+  assertSame(a, array[0][1]);
+  assertSame(2, array[1].length);
+  assertSame(b, array[1][0]);
+  assertSame(c, array[1][1]);
+  assertSame(2, array[2].length);
+  assertSame(1, array[2][0]);
+  assertSame(2, array[2][1]);
+  assertSame(3, array[3]);
+}
+TestOptimizedLiteral(create_arr_nested, verify_arr_nested);
+
+
+// Test shallow object literal.
+function create_obj_shallow(a, b, c) {
+  return { x:a, y:b, z:c, v:'foo', 9:'bar' };
+}
+function verify_obj_shallow(object, a, b, c) {
+  assertSame(a, object.x);
+  assertSame(b, object.y);
+  assertSame(c, object.z);
+  assertSame('foo', object.v);
+  assertSame('bar', object[9]);
+}
+TestOptimizedLiteral(create_obj_shallow, verify_obj_shallow);
+
+
+// Test nested object literal.
+function create_obj_nested(a, b, c) {
+  return { x:{ v:a, w:b }, y:{ v:1, w:2 }, z:c, v:'foo', 9:'bar' };
+}
+function verify_obj_nested(object, a, b, c) {
+  assertSame(a, object.x.v);
+  assertSame(b, object.x.w);
+  assertSame(1, object.y.v);
+  assertSame(2, object.y.w);
+  assertSame(c, object.z);
+  assertSame('foo', object.v);
+  assertSame('bar', object[9]);
+}
+TestOptimizedLiteral(create_obj_nested, verify_obj_nested);
+
+
+// Test mixed array and object literal.
+function create_mixed_nested(a, b, c) {
+  return { x:[1, 2], y:[a, b], z:c, v:{ v:'foo' }, 9:'bar' };
+}
+function verify_mixed_nested(object, a, b, c) {
+  assertSame(2, object.x.length);
+  assertSame(1, object.x[0]);
+  assertSame(2, object.x[1]);
+  assertSame(2, object.y.length);
+  assertSame(a, object.y[0]);
+  assertSame(b, object.y[1]);
+  assertSame(c, object.z);
+  assertSame('foo', object.v.v);
+  assertSame('bar', object[9]);
+}
+TestOptimizedLiteral(create_mixed_nested, verify_mixed_nested);