Fix some errors

Author: spavloff

llvm/lib/Analysis/ConstantFolding.cpp

@@ -1354,9 +1354,9 @@ static ConstantFP *flushDenormalConstantFP(ConstantFP *CFP,
   if (!APF.isDenormal())
     return CFP;
 
-  if (auto *CB = dyn_cast<CallBase>(Inst)) {
+  if (auto *CB = dyn_cast_or_null<CallBase>(Inst)) {
     auto Mode = IsOutput ? CB->getOutputDenormMode() : CB->getInputDenormMode();
-    return flushDenormalConstant(CFP->getType(), APF, Mode);
+    return flushDenormalConstant(CFP->getType(), APF, *Mode);
   }
 
   DenormalMode Mode = getInstrDenormalMode(Inst, CFP->getType());

llvm/lib/IR/Instructions.cpp

@@ -984,10 +984,10 @@ static StringRef getBundledDenormPrefix(const fltSemantics *FPSem, bool Input) {
 }
 
 std::optional<DenormalMode::DenormalModeKind>
-llvm::getDenormModeBundle(const OperandBundleUse &Control, bool Unput,
+llvm::getDenormModeBundle(const OperandBundleUse &Control, bool Input,
                           const fltSemantics *FPSem) {
   assert(Control.getTagID() == LLVMContext::OB_fp_control);
-  StringRef Prefix = getBundledDenormPrefix(FPSem, true);
+  StringRef Prefix = getBundledDenormPrefix(FPSem, Input);
   if (Prefix.empty())
     return std::nullopt;
   auto DenormOperand = getBundleOperandByPrefix(Control, Prefix);