Move X8632-specific Assembler stuff to Machine Traits.

src/IceRegistersX8664.h

 //===- subzero/src/IceRegistersX8664.h - Register information ---*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the registers and their encodings for x86-64.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef SUBZERO_SRC_ICEREGISTERSX8664_H
 #define SUBZERO_SRC_ICEREGISTERSX8664_H
 
 #include "IceDefs.h"
 #include "IceInstX8664.def"
 #include "IceTypes.h"
 
 namespace Ice {
 
-namespace RegX8664 {
-
-// An enum of every register. The enum value may not match the encoding
-// used to binary encode register operands in instructions.
-enum AllRegisters {
+class RegX8664 {
+public:
+  // An enum of every register. The enum value may not match the encoding
+  // used to binary encode register operands in instructions.
+  enum AllRegisters {
 #define X(val, encode, name64, name, name16, name8, scratch, preserved,        \
           stackptr, frameptr, isInt, isFP)                                     \
   val,
-  REGX8664_TABLE
+    REGX8664_TABLE
 #undef X
-      Reg_NUM,
+        Reg_NUM,
 #define X(val, init) val init,
-  REGX8664_TABLE_BOUNDS
+    REGX8664_TABLE_BOUNDS
 #undef X
-};
+  };
 
-// An enum of GPR Registers. The enum value does match the encoding used
-// to binary encode register operands in instructions.
-enum GPRRegister {
+  // An enum of GPR Registers. The enum value does match the encoding used
+  // to binary encode register operands in instructions.
+  enum GPRRegister {
 #define X(val, encode, name64, name, name16, name8, scratch, preserved,        \
           stackptr, frameptr, isInt, isFP)                                     \
   Encoded_##val encode,
-  REGX8664_GPR_TABLE
+    REGX8664_GPR_TABLE
 #undef X
-      Encoded_Not_GPR = -1
-};
+        Encoded_Not_GPR = -1
+  };
 
-// An enum of XMM Registers. The enum value does match the encoding used
-// to binary encode register operands in instructions.
-enum XmmRegister {
+  // An enum of XMM Registers. The enum value does match the encoding used
+  // to binary encode register operands in instructions.
+  enum XmmRegister {
 #define X(val, encode, name64, name, name16, name8, scratch, preserved,        \
           stackptr, frameptr, isInt, isFP)                                     \
   Encoded_##val encode,
-  REGX8664_XMM_TABLE
+    REGX8664_XMM_TABLE
 #undef X
-      Encoded_Not_Xmm = -1
+        Encoded_Not_Xmm = -1
+  };
+
+  // An enum of Byte Registers. The enum value does match the encoding used
+  // to binary encode register operands in instructions.
+  enum ByteRegister {
+#define X(val, encode) Encoded_##val encode,
+    REGX8664_BYTEREG_TABLE
+#undef X
+        Encoded_Not_ByteReg = -1
+  };
+
+  static inline GPRRegister getEncodedGPR(int32_t RegNum) {
+    assert(Reg_GPR_First <= RegNum && RegNum <= Reg_GPR_Last);
+    return GPRRegister(RegNum - Reg_GPR_First);
+  }
+
+  static inline XmmRegister getEncodedXmm(int32_t RegNum) {
+    assert(Reg_XMM_First <= RegNum && RegNum <= Reg_XMM_Last);
+    return XmmRegister(RegNum - Reg_XMM_First);
+  }
+
+  static inline ByteRegister getEncodedByteReg(int32_t RegNum) {
+    // In x86-64, AH is not encodable when the REX prefix is used; the same
+    // encoding is used for spl. Therefore, ah needs special handling.
+    if (RegNum == Reg_ah)
+      return Encoded_Reg_spl;
+    return ByteRegister(RegNum - Reg_GPR_First);
+  }
+
+  static inline GPRRegister getEncodedByteRegOrGPR(Type Ty, int32_t RegNum) {
+    if (isByteSizedType(Ty))
+      return GPRRegister(getEncodedByteReg(RegNum));
+    else
+      return getEncodedGPR(RegNum);
+  }
 };
 
-// An enum of Byte Registers. The enum value does match the encoding used
-// to binary encode register operands in instructions.
-enum ByteRegister {
-#define X(val, encode) Encoded_##val encode,
-  REGX8664_BYTEREG_TABLE
-#undef X
-      Encoded_Not_ByteReg = -1
-};
-
-static inline GPRRegister getEncodedGPR(int32_t RegNum) {
-  assert(Reg_GPR_First <= RegNum && RegNum <= Reg_GPR_Last);
-  return GPRRegister(RegNum - Reg_GPR_First);
-}
-
-static inline XmmRegister getEncodedXmm(int32_t RegNum) {
-  assert(Reg_XMM_First <= RegNum && RegNum <= Reg_XMM_Last);
-  return XmmRegister(RegNum - Reg_XMM_First);
-}
-
-static inline ByteRegister getEncodedByteReg(int32_t RegNum) {
-  // In x86-64, AH is not encodable when the REX prefix is used; the same
-  // encoding is used for spl. Therefore, ah needs special handling.
-  if (RegNum == Reg_ah)
-    return Encoded_Reg_spl;
-  return ByteRegister(RegNum - Reg_GPR_First);
-}
-
-static inline GPRRegister getEncodedByteRegOrGPR(Type Ty, int32_t RegNum) {
-  if (isByteSizedType(Ty))
-    return GPRRegister(getEncodedByteReg(RegNum));
-  else
-    return getEncodedGPR(RegNum);
-}
-
-} // end of namespace RegX8664
-
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEREGISTERSX8664_H