Fix for an ARM register allocation bug.

src/arm/assembler-arm-inl.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 14 matching lines @@
 // 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.
 
 // The original source code covered by the above license above has been modified
 // significantly by Google Inc.
-// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 
 #ifndef V8_ARM_ASSEMBLER_ARM_INL_H_
 #define V8_ARM_ASSEMBLER_ARM_INL_H_
 
 #include "arm/assembler-arm.h"
 #include "cpu.h"
 #include "debug.h"
 
 
 namespace v8 {
 namespace internal {
 
 
+int DwVfpRegister::ToAllocationIndex(DwVfpRegister reg) {
+  ASSERT(!reg.is(kDoubleRegZero));
+  ASSERT(!reg.is(kScratchDoubleReg));
+  return reg.code();
+}
+
+
 void RelocInfo::apply(intptr_t delta) {
   if (RelocInfo::IsInternalReference(rmode_)) {
     // absolute code pointer inside code object moves with the code object.
     int32_t* p = reinterpret_cast<int32_t*>(pc_);
     *p += delta;  // relocate entry
   }
   // We do not use pc relative addressing on ARM, so there is
   // nothing else to do.
 }
 
@@ skipping 310 matching lines @@
   //   CPU::FlushICache(pc, sizeof(target));
   // However, on ARM, no instruction was actually patched by the assignment
   // above; the target address is not part of an instruction, it is patched in
   // the constant pool and is read via a data access; the instruction accessing
   // this address in the constant pool remains unchanged.
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_ASSEMBLER_ARM_INL_H_