[NFC] Fix typos

[Amir]

LGTM

llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

EVT getCallOperandValEVT(LLVMContext &Context, const TargetLowering &TLI,
 
     llvm::Type *OpTy = CallOperandVal->getType();
 
     // FIXME: code duplicated from TargetLowering::ParseConstraints().
     // If this is an indirect operand, the operand is a pointer to the
     // accessed type.
     if (isIndirect) {
       OpTy = ParamElemType;
-      assert(OpTy && "Indirect opernad must have elementtype attribute");
+      assert(OpTy && "Indirect operand must have elementtype attribute");
     }
 
     // Look for vector wrapped in a struct. e.g. { <16 x i8> }.
     if (StructType *STy = dyn_cast<StructType>(OpTy))
       if (STy->getNumElements() == 1)
         OpTy = STy->getElementType(0);
 
     // If OpTy is not a single value, it may be a struct/union that we

llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp

case InlineAsm::isClobber:
       // Nothing to do.
       break;
     }
 
     if (OpInfo.CallOperandVal) {
       llvm::Type *OpTy = OpInfo.CallOperandVal->getType();
       if (OpInfo.isIndirect) {
         OpTy = Call.getParamElementType(ArgNo);
-        assert(OpTy && "Indirect opernad must have elementtype attribute");
+        assert(OpTy && "Indirect operand must have elementtype attribute");
       }
 
       // Look for vector wrapped in a struct. e.g. { <16 x i8> }.
       if (StructType *STy = dyn_cast<StructType>(OpTy))
         if (STy->getNumElements() == 1)
           OpTy = STy->getElementType(0);
 
       // If OpTy is not a single value, it may be a struct/union that we

llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp

bool X86AsmParser::ParseZ(std::unique_ptr<X86Operand> &Z,
   if (!(getLexer().is(AsmToken::Identifier) &&
         (getLexer().getTok().getIdentifier() == "z")))
     return false;
   Parser.Lex(); // Eat z
   // Query and eat the '}' mark
   if (!getLexer().is(AsmToken::RCurly))
     return Error(getLexer().getLoc(), "Expected } at this point");
   Parser.Lex(); // Eat '}'
-  // Assign Z with the {z} mark opernad
+  // Assign Z with the {z} mark operand
   Z = X86Operand::CreateToken("{z}", StartLoc);
   return false;
 }
 
 // true on failure, false otherwise
 bool X86AsmParser::HandleAVX512Operand(OperandVector &Operands) {
   MCAsmParser &Parser = getParser();
   if (getLexer().is(AsmToken::LCurly)) {