Experimental parser: merge to r19637

test/mjsunit/regress/string-set-char-deopt.js

-// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright 2014 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 usage of static type information for loads that would otherwise
-// turn into polymorphic or generic loads.
-
-// Prepare a highly polymorphic load to be used by all tests.
-Object.prototype.load = function() { return this.property; };
-Object.prototype.load.call({ A:0, property:10 });
-Object.prototype.load.call({ A:0, B:0, property:11 });
-Object.prototype.load.call({ A:0, B:0, C:0, property:12 });
-Object.prototype.load.call({ A:0, B:0, C:0, D:0, property:13 });
-Object.prototype.load.call({ A:0, B:0, C:0, D:0, E:0, property:14 });
-Object.prototype.load.call({ A:0, B:0, C:0, D:0, E:0, F:0, property:15 });
-
-// Test for object literals.
-(function() {
-  function f(x) {
-    var object = { property:x };
-    return object.load();
+(function OneByteSeqStringSetCharDeoptOsr() {
+  function deopt() {
+    %DeoptimizeFunction(f);
   }
 
-  assertSame(1, f(1));
-  assertSame(2, f(2));
+  function f(string, osr) {
+    var world = " world";
+    %_OneByteSeqStringSetChar(string, 0, (deopt(), 0x48));
+
+    if (osr) while (%GetOptimizationStatus(f) == 2) {}
+
+    return string + world;
+  }
+
+  assertEquals("Hello " + "world", f("hello", false));
   %OptimizeFunctionOnNextCall(f);
-  assertSame(3, f(3));
+  assertEquals("Hello " + "world", f("hello", true));
 })();
 
-// Test for inlined constructors.
-(function() {
-  function c(x) {
-    this.property = x;
-  }
-  function f(x) {
-    var object = new c(x);
-    return object.load();
+
+(function OneByteSeqStringSetCharDeopt() {
+  function deopt() {
+    %DeoptimizeFunction(f);
   }
 
-  assertSame(1, f(1));
-  assertSame(2, f(2));
+  function g(x) {
+  }
+
+  function f(string) {
+    g(%_OneByteSeqStringSetChar(string, 0, (deopt(), 0x48)));
+    return string;
+  }
+
+  assertEquals("Hell" + "o", f("hello"));
   %OptimizeFunctionOnNextCall(f);
-  assertSame(3, f(3));
+  assertEquals("Hell" + "o", f("hello"));
 })();
+
+
+(function TwoByteSeqStringSetCharDeopt() {
+  function deopt() {
+    %DeoptimizeFunction(f);
+  }
+
+  function g(x) {
+  }
+
+  function f(string) {
+    g(%_TwoByteSeqStringSetChar(string, 0, (deopt(), 0x48)));
+    return string;
+  }
+
+  assertEquals("Hell" + "o", f("\u20ACello"));
+  %OptimizeFunctionOnNextCall(f);
+  assertEquals("Hell" + "o", f("\u20ACello"));
+})();