AMDGPU: Print modifiers when dumping AMDGPUOperand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251160 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp

@@ -258,7 +258,7 @@ public:
   void print(raw_ostream &OS) const override {
     switch (Kind) {
     case Register:
-      OS << "<register " << getReg() << '>';
+      OS << "<register " << getReg() << " mods: " << Reg.Modifiers << '>';
       break;
     case Immediate:
       OS << getImm();