[RegisterConfiguration] Streamline access to arch defaults, simplify Registers.

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index c355105f35f70de7158cd0fd4b9baa320ca49467..c7e819ae4250081af561e5198ca25f897816ca16 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -114,56 +114,6 @@ namespace v8 {
 namespace internal {
 
 // -----------------------------------------------------------------------------
-// Common register code.
-
-const char* Register::ToString() {
-  // This is the mapping of allocation indices to registers.
-  DCHECK(reg_code >= 0 && reg_code < kNumRegisters);
-  return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT)
-      ->GetGeneralRegisterName(reg_code);
-}
-
-bool Register::IsAllocatable(
-    RegisterConfiguration::CompilerSelector compiler) const {
-  return ((1 << reg_code) &
-          RegisterConfiguration::ArchDefault(compiler)
-              ->allocatable_general_codes_mask()) != 0;
-}
-
-const char* DoubleRegister::ToString() {
-  // This is the mapping of allocation indices to registers.
-  DCHECK(reg_code >= 0 && reg_code < kMaxNumRegisters);
-  return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT)
-      ->GetDoubleRegisterName(reg_code);
-}
-
-bool DoubleRegister::IsAllocatable(
-    RegisterConfiguration::CompilerSelector compiler) const {
-  return ((1 << reg_code) &
-          RegisterConfiguration::ArchDefault(compiler)
-              ->allocatable_double_codes_mask()) != 0;
-}
-
-// FloatRegister is only a distinct type on ARM. On all other platforms it's
-// typedef'ed to DoubleRegister.
-#if V8_TARGET_ARCH_ARM
-const char* FloatRegister::ToString() {
-  // This is the mapping of allocation indices to registers.
-  DCHECK(reg_code >= 0 && reg_code < kMaxNumRegisters);
-  return RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT)
-      ->GetFloatRegisterName(reg_code);
-}
-
-bool FloatRegister::IsAllocatable(
-    RegisterConfiguration::CompilerSelector compiler) const {
-  // TODO(bbudge) Update this once RegisterConfigutation handles aliasing.
-  return ((1 << reg_code) &
-          RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT)
-              ->allocatable_double_codes_mask()) != 0;
-}
-#endif  // V8_TARGET_ARCH_ARM
-
-// -----------------------------------------------------------------------------
 // Common double constants.
 
 struct DoubleConstant BASE_EMBEDDED {