[AMDGPU][llvm-mc] Disassembler: support for TTMP/TBA/TMA registers.

Differential Revision: http://reviews.llvm.org/D20476

llvm-svn: 270552
diff --git a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
index 1856a4e..dff26a0 100644
--- a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
+++ b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
@@ -69,13 +69,22 @@
     MCOperand decodeOperand_SReg_256(unsigned Val) const;
     MCOperand decodeOperand_SReg_512(unsigned Val) const;
 
-    enum { OP32 = true, OP64 = false };
+    enum OpWidthTy {
+      OPW32,
+      OPW64,
+      OPW128,
+      OPW_LAST_,
+      OPW_FIRST_ = OPW32
+    };
+    unsigned getVgprClassId(const OpWidthTy Width) const;
+    unsigned getSgprClassId(const OpWidthTy Width) const;
+    unsigned getTtmpClassId(const OpWidthTy Width) const;
 
     static MCOperand decodeIntImmed(unsigned Imm);
     static MCOperand decodeFPImmed(bool Is32, unsigned Imm);
     MCOperand decodeLiteralConstant() const;
 
-    MCOperand decodeSrcOp(bool Is32, unsigned Val) const;
+    MCOperand decodeSrcOp(const OpWidthTy Width, unsigned Val) const;
     MCOperand decodeSpecialReg32(unsigned Val) const;
     MCOperand decodeSpecialReg64(unsigned Val) const;
   };