MSP430: Do not add target specific STI member to MSP430AsmParser (#156443)

The base class already has an STI pointer member, so use that.

Author: arsenm

llvm/lib/Target/MSP430/AsmParser/MSP430AsmParser.cpp

@@ -36,7 +36,6 @@ namespace {
 
 /// Parses MSP430 assembly from a stream.
 class MSP430AsmParser : public MCTargetAsmParser {
-  const MCSubtargetInfo &STI;
   MCAsmParser &Parser;
   const MCRegisterInfo *MRI;
 
@@ -79,7 +78,7 @@ class MSP430AsmParser : public MCTargetAsmParser {
 public:
   MSP430AsmParser(const MCSubtargetInfo &STI, MCAsmParser &Parser,
                   const MCInstrInfo &MII, const MCTargetOptions &Options)
-      : MCTargetAsmParser(Options, STI, MII), STI(STI), Parser(Parser) {
+      : MCTargetAsmParser(Options, STI, MII), Parser(Parser) {
     MCAsmParserExtension::Initialize(Parser);
     MRI = getContext().getRegisterInfo();
 
@@ -264,7 +263,7 @@ bool MSP430AsmParser::matchAndEmitInstruction(SMLoc Loc, unsigned &Opcode,
   switch (MatchResult) {
   case Match_Success:
     Inst.setLoc(Loc);
-    Out.emitInstruction(Inst, STI);
+    Out.emitInstruction(Inst, *STI);
     return false;
   case Match_MnemonicFail:
     return Error(Loc, "invalid instruction mnemonic");