AMDGPU: Remove deadcode from AMDGPUInstPrinter

[arsenm]

LGTM

lib/Target/AMDGPU/InstPrinter/AMDGPUInstPrinter.h

private:
   void printRel(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                 raw_ostream &O);
   void printUpdateExecMask(const MCInst *MI, unsigned OpNo,
                            const MCSubtargetInfo &STI, raw_ostream &O);
   void printUpdatePred(const MCInst *MI, unsigned OpNo,
                        const MCSubtargetInfo &STI, raw_ostream &O);
   void printWrite(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                   raw_ostream &O);
-  void printSel(const MCInst *MI, unsigned OpNo, raw_ostream &O);
   void printBankSwizzle(const MCInst *MI, unsigned OpNo,
                         const MCSubtargetInfo &STI, raw_ostream &O);
   void printRSel(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                  raw_ostream &O);
   void printCT(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                raw_ostream &O);
   void printKCache(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                    raw_ostream &O);

lib/Target/AMDGPU/InstPrinter/AMDGPUInstPrinter.cpp

 void AMDGPUInstPrinter::printWrite(const MCInst *MI, unsigned OpNo,
                                    const MCSubtargetInfo &STI, raw_ostream &O) {
   const MCOperand &Op = MI->getOperand(OpNo);
   if (Op.getImm() == 0) {
     O << " (MASKED)";
   }
 }
 
-void AMDGPUInstPrinter::printSel(const MCInst *MI, unsigned OpNo,
-                                 raw_ostream &O) {
-  const char * chans = "XYZW";
-  int sel = MI->getOperand(OpNo).getImm();
-
-  int chan = sel & 3;
-  sel >>= 2;
-
-  if (sel >= 512) {
-    sel -= 512;
-    int cb = sel >> 12;
-    sel &= 4095;
-    O << cb << '[' << sel << ']';
-  } else if (sel >= 448) {
-    sel -= 448;
-    O << sel;
-  } else if (sel >= 0){
-    O << sel;
-  }
-
-  if (sel >= 0)
-    O << '.' << chans[chan];
 }
 
 void AMDGPUInstPrinter::printBankSwizzle(const MCInst *MI, unsigned OpNo,
                                          const MCSubtargetInfo &STI,
                                          raw_ostream &O) {
   int BankSwizzle = MI->getOperand(OpNo).getImm();
   switch (BankSwizzle) {
   case 1:

lib/Target/AMDGPU/R600Instructions.td

 // Operands for non-registers
 
 class InstFlag<string PM = "printOperand", int Default = 0>
     : OperandWithDefaultOps <i32, (ops (i32 Default))> {
   let PrintMethod = PM;
 }
 
 // src_sel for ALU src operands, see also ALU_CONST, ALU_PARAM registers
-def SEL : OperandWithDefaultOps <i32, (ops (i32 -1))> {
-  let PrintMethod = "printSel";
-}
+def SEL : OperandWithDefaultOps <i32, (ops (i32 -1))>;
 def BANK_SWIZZLE : OperandWithDefaultOps <i32, (ops (i32 0))> {
   let PrintMethod = "printBankSwizzle";
 }
 
 def LITERAL : InstFlag<"printLiteral">;
 
 def WRITE : InstFlag <"printWrite", 1>;
 def OMOD : InstFlag <"printOMOD">;