Re-reland: Remove register index/code indirection

src/arm/assembler-arm-inl.h

Index: src/arm/assembler-arm-inl.h
diff --git a/src/arm/assembler-arm-inl.h b/src/arm/assembler-arm-inl.h
index ff44f40dc2a910e62b45e117f35a9e77e187b31a..175a21df51b2d52bb82f24bf0284805f4c37b438 100644
--- a/src/arm/assembler-arm-inl.h
+++ b/src/arm/assembler-arm-inl.h
@@ -50,53 +50,11 @@ namespace internal {
 bool CpuFeatures::SupportsCrankshaft() { return IsSupported(VFP3); }
 
 
-int Register::NumAllocatableRegisters() {
-  return kMaxNumAllocatableRegisters;
-}
-
-
-int DwVfpRegister::NumRegisters() {
+int DoubleRegister::NumRegisters() {
   return CpuFeatures::IsSupported(VFP32DREGS) ? 32 : 16;
 }
 
 
-int DwVfpRegister::NumReservedRegisters() {
-  return kNumReservedRegisters;
-}
-
-
-int DwVfpRegister::NumAllocatableRegisters() {
-  return NumRegisters() - kNumReservedRegisters;
-}
-
-
-// static
-int DwVfpRegister::NumAllocatableAliasedRegisters() {
-  return LowDwVfpRegister::kMaxNumLowRegisters - kNumReservedRegisters;
-}
-
-
-int DwVfpRegister::ToAllocationIndex(DwVfpRegister reg) {
-  DCHECK(!reg.is(kDoubleRegZero));
-  DCHECK(!reg.is(kScratchDoubleReg));
-  if (reg.code() > kDoubleRegZero.code()) {
-    return reg.code() - kNumReservedRegisters;
-  }
-  return reg.code();
-}
-
-
-DwVfpRegister DwVfpRegister::FromAllocationIndex(int index) {
-  DCHECK(index >= 0 && index < NumAllocatableRegisters());
-  DCHECK(kScratchDoubleReg.code() - kDoubleRegZero.code() ==
-         kNumReservedRegisters - 1);
-  if (index >= kDoubleRegZero.code()) {
-    return from_code(index + kNumReservedRegisters);
-  }
-  return from_code(index);
-}
-
-
 void RelocInfo::apply(intptr_t delta) {
   if (RelocInfo::IsInternalReference(rmode_)) {
     // absolute code pointer inside code object moves with the code object.