Fix regexp bug reported on iit.edu.

Review URL: http://codereview.chromium.org/141042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2235 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/jsregexp.cc

@@ -404,7 +404,9 @@ Handle<Object> RegExpImpl::IrregexpExec(Handle<JSRegExp> jsregexp,
 
   // Prepare space for the return values.
   int number_of_capture_registers =
-      (IrregexpNumberOfCaptures(FixedArray::cast(jsregexp->data())) + 1) * 2;
+      UseNativeRegexp() ?
+      (IrregexpNumberOfCaptures(FixedArray::cast(jsregexp->data())) + 1) * 2 :
+      IrregexpNumberOfRegisters(FixedArray::cast(jsregexp->data()));
   OffsetsVector offsets(number_of_capture_registers);
 
 #ifdef DEBUG
@@ -896,12 +898,13 @@ void Trace::PerformDeferredActions(RegExpMacroAssembler* assembler,
   // The "+1" is to avoid a push_limit of zero if stack_limit_slack() is 1.
   const int push_limit = (assembler->stack_limit_slack() + 1) / 2;
 
+  // Count pushes performed to force a stack limit check occasionally.
+  int pushes = 0;
+
   for (int reg = 0; reg <= max_register; reg++) {
     if (!affected_registers.Get(reg)) {
       continue;
     }
-    // Count pushes performed to force a stack limit check occasionally.
-    int pushes = 0;
 
     // The chronologically first deferred action in the trace
     // is used to infer the action needed to restore a register

test/mjsunit/regexp-captures.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.
+
+var re = /^(((N({)?)|(R)|(U)|(V)|(B)|(H)|(n((n)|(r)|(v)|(h))?)|(r(r)?)|(v)|(b((n)|(b))?)|(h))|((Y)|(A)|(E)|(o(u)?)|(p(u)?)|(q(u)?)|(s)|(t)|(u)|(w)|(x(u)?)|(y)|(z)|(a((T)|(A)|(L))?)|(c)|(e)|(f(u)?)|(g(u)?)|(i)|(j)|(l)|(m(u)?)))+/;
+var r = new RegExp(re)
+var str = "Avtnennan gunzvmu pubExnY nEvln vaTxh rmuhguhaTxnY"
+assertTrue(r.test(str));