Remove interface to get/set MaxFunctionCount

[eraman]

Summary

This completes MaxFunctionCount deprecation

[vsk]

Lgtm

[vsk]

Ping. Is there anything blocking this patch?

[eraman]

r266477 got reverted, but it can now be reapplied after I split Coverage
into a separate library. I was on vacation and came back today - will
reapply that patch today and submit the subsequent patches.

• Easwaran

include/llvm/IR/Module.h

/// @{
 
   /// \brief Set the PIC level (small or large model)
   void setPICLevel(PICLevel::Level PL);
 /// @}
 
   /// @name Utility functions for querying and setting PGO summary
   /// @{
 
-  /// \brief Set maximum function count in PGO mode
-  void setMaximumFunctionCount(uint64_t);
-
-  /// \brief Returns maximum function count in PGO mode
-  Optional<uint64_t> getMaximumFunctionCount();
-
   /// \brief Attach profile summary metadata to this module.
   void setProfileSummary(Metadata *M);
 
   /// \brief Returns profile summary metadata
   Metadata *getProfileSummary();
   /// @}
 };
 

lib/IR/Module.cpp

PICLevel::Level Module::getPICLevel() const {
   return static_cast<PICLevel::Level>(
       cast<ConstantInt>(Val->getValue())->getZExtValue());
 }
 
 void Module::setPICLevel(PICLevel::Level PL) {
   addModuleFlag(ModFlagBehavior::Error, "PIC Level", PL);
 }
 
-void Module::setMaximumFunctionCount(uint64_t Count) {
-  addModuleFlag(ModFlagBehavior::Error, "MaxFunctionCount", Count);
-}
-
-Optional<uint64_t> Module::getMaximumFunctionCount() {
-  auto *Val =
-      cast_or_null<ConstantAsMetadata>(getModuleFlag("MaxFunctionCount"));
-  if (!Val)
-    return None;
-  return cast<ConstantInt>(Val->getValue())->getZExtValue();
-}
-
 void Module::setProfileSummary(Metadata *M) {
   addModuleFlag(ModFlagBehavior::Error, "ProfileSummary", M);
 }
 
 Metadata *Module::getProfileSummary() {
   return getModuleFlag("ProfileSummary");
 }