[Xtensa] Minor fix in XtensaAsnParser. Remove redundant code.

Author: andreisfr

llvm/lib/Target/Xtensa/AsmParser/XtensaAsmParser.cpp

@@ -596,8 +596,7 @@ ParseStatus XtensaAsmParser::parseRegister(OperandVector &Operands,
   if (AllowParens && getLexer().is(AsmToken::LParen)) {
     size_t ReadCount = getLexer().peekTokens(Buf);
     if (ReadCount == 2 && Buf[1].getKind() == AsmToken::RParen) {
-      if ((Buf[0].getKind() == AsmToken::Integer) &&
-          (RegType == Xtensa_Generic))
+      if (Buf[0].getKind() == AsmToken::Integer && RegType == Xtensa_Generic)
         return ParseStatus::NoMatch;
       HadParens = true;
       getParser().Lex(); // Eat '('

llvm/lib/Target/Xtensa/XtensaInstrInfo.td

@@ -898,19 +898,6 @@ let Constraints = "$dr = $r,@earlyclobber $dr" in {
                    "movt\t$r, $s, $t", []>, Requires<[HasBoolean]>;
 }
 
-let Predicates = [HasBoolean] in {
-  def SPILL_BOOL: Pseudo<(outs), (ins BR:$b, mem8:$mem),
-                            "!spill_bool $b, $mem",[]> {
-    let mayStore = 1;
-  }
-
-  def RESTORE_BOOL: Pseudo<(outs BR:$out), (ins mem8:$mem),
-                            "!restore_bool $out, $mem",[]> {
-    let mayLoad = 1;
-    let Defs = [BREG];
-  }
-}
-
 //===----------------------------------------------------------------------===//
 // SEXT Instruction
 //===----------------------------------------------------------------------===//