Fix method signature

Author: spavloff

llvm/include/llvm/IR/InstrTypes.h

@@ -2165,11 +2165,11 @@ class CallBase : public Instruction {
     return false;
   }
 
-  /// Return rounding mode specified by operand bundles.
+  /// Return rounding mode specified for this call.
   RoundingMode getRoundingMode() const;
 
-  /// Return exception behavior specified by operand bundles.
-  std::optional<fp::ExceptionBehavior> getExceptionBehavior() const;
+  /// Return exception behavior specified for this call.
+  fp::ExceptionBehavior getExceptionBehavior() const;
 
   /// Used to keep track of an operand bundle.  See the main comment on
   /// OperandBundleUser above.

llvm/lib/IR/Instructions.cpp

@@ -647,7 +647,7 @@ RoundingMode CallBase::getRoundingMode() const {
   return RoundingMode::NearestTiesToEven;
 }
 
-std::optional<fp::ExceptionBehavior> CallBase::getExceptionBehavior() const {
+fp::ExceptionBehavior CallBase::getExceptionBehavior() const {
   // Try determining exception behavior from FP bundle.
   std::optional<fp::ExceptionBehavior> EB;
   if (auto ExceptionBundle = getOperandBundle(LLVMContext::OB_fp_except)) {