Add missing smi check in IC for nonexistent properties.

Add regression test.

BUG=v8:681
Review URL: http://codereview.chromium.org/1673005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4446 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/stub-cache-arm.cc

@@ -1420,6 +1420,10 @@ Object* LoadStubCompiler::CompileLoadNonexistent(String* name,
   // Load receiver.
   __ ldr(r0, MemOperand(sp, 0));
 
+  // Check that receiver is not a smi.
+  __ tst(r0, Operand(kSmiTagMask));
+  __ b(eq, &miss);
+
   // Check the maps of the full prototype chain.
   CheckPrototypes(object, r0, last, r3, r1, name, &miss);
 

src/ia32/stub-cache-ia32.cc

@@ -1976,6 +1976,10 @@ Object* LoadStubCompiler::CompileLoadNonexistent(String* name,
   // -----------------------------------
   Label miss;
 
+  // Check that the receiver isn't a smi.
+  __ test(eax, Immediate(kSmiTagMask));
+  __ j(zero, &miss, not_taken);
+
   // Check the maps of the full prototype chain. Also check that
   // global property cells up to (but not including) the last object
   // in the prototype chain are empty.

src/x64/stub-cache-x64.cc

@@ -1177,6 +1177,9 @@ Object* LoadStubCompiler::CompileLoadNonexistent(String* name,
   // Load receiver.
   __ movq(rax, Operand(rsp, kPointerSize));
 
+  // Chech that receiver is not a smi.
+  __ JumpIfSmi(rax, &miss);
+
   // Check the maps of the full prototype chain. Also check that
   // global property cells up to (but not including) the last object
   // in the prototype chain are empty.

test/mjsunit/regress/regress-681.js

@@ -0,0 +1,44 @@
+// 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.
+
+// Regression test for http://code.google.com/p/v8/issues/detail?id=681.
+//
+// Test that load ICs for nonexistent properties bail out on smi receiver.
+
+
+var x = {};
+function f() { return x.y; }
+
+// Initialize IC for nonexistent y property on x.
+f();
+f();
+
+// Make x a smi.
+x = 23;
+
+// Check that we bail out from the IC.
+assertEquals(undefined, f());