[ARM] Reserve scratch q-register.

src/arm/deoptimizer-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/assembler-inl.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
 #include "src/objects-inl.h"
 #include "src/register-configuration.h"
@@ skipping 106 matching lines @@
   // Save all general purpose registers before messing with them.
   const int kNumberOfRegisters = Register::kNumRegisters;
 
   // Everything but pc, lr and ip which will be saved but not restored.
   RegList restored_regs = kJSCallerSaved | kCalleeSaved | ip.bit();
 
   const int kDoubleRegsSize = kDoubleSize * DwVfpRegister::kMaxNumRegisters;
   const int kFloatRegsSize = kFloatSize * SwVfpRegister::kMaxNumRegisters;
 
   // Save all allocatable VFP registers before messing with them.
-  DCHECK(kDoubleRegZero.code() == 14);
-  DCHECK(kScratchDoubleReg.code() == 15);
+  DCHECK(kDoubleRegZero.code() == 13);
+  DCHECK(kScratchDoubleReg.code() == 14);
 
   {
     // We use a run-time check for VFP32DREGS.
     CpuFeatureScope scope(masm(), VFP32DREGS,
                           CpuFeatureScope::kDontCheckSupported);
 
     // Check CPU flags for number of registers, setting the Z condition flag.
     __ CheckFor32DRegs(ip);
 
     // Push registers d0-d15, and possibly d16-d31, on the stack.
@@ skipping 254 matching lines @@
 void FrameDescription::SetCallerConstantPool(unsigned offset, intptr_t value) {
   // No embedded constant pool support.
   UNREACHABLE();
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8