Fix issue 475

The check for arguments in registers in one of the three versions of GenericBinaryOpStub::GenerateCall was plain wrong.

BUG=475
TEST=mjsunit/regress/regress-475.js
Review URL: http://codereview.chromium.org/307002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3092 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/codegen-ia32.cc

@@ -6531,7 +6531,7 @@ void GenericBinaryOpStub::GenerateCall(
     Register left,
     Register right) {
   if (!ArgsInRegistersSupported()) {
-    // Only pass arguments in registers if there is no smi code in the stub.
+    // Pass arguments on the stack.
     __ push(left);
     __ push(right);
   } else {
@@ -6584,7 +6584,7 @@ void GenericBinaryOpStub::GenerateCall(
     Register left,
     Smi* right) {
   if (!ArgsInRegistersSupported()) {
-    // Only pass arguments in registers if there is no smi code in the stub.
+    // Pass arguments on the stack.
     __ push(left);
     __ push(Immediate(right));
   } else {
@@ -6612,8 +6612,8 @@ void GenericBinaryOpStub::GenerateCall(
     MacroAssembler* masm,
     Smi* left,
     Register right) {
-  if (flags_ != NO_SMI_CODE_IN_STUB) {
-    // Only pass arguments in registers if there is no smi code in the stub.
+  if (!ArgsInRegistersSupported()) {
+    // Pass arguments on the stack.
     __ push(Immediate(left));
     __ push(right);
   } else {

test/mjsunit/regress/regress-475.js

+// Copyright 2009 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.
+
+assertEquals(1, (function (){return 1|-1%1})());