[BOLT] Remove CreatePastEnd parameter in getOrCreateLocalLabel(). NFC (#165065)

CreatePastEnd parameter had no effect on the label creation. Remove it.

bolt/include/bolt/Core/BinaryFunction.h

@@ -620,13 +620,11 @@ private:
   }
 
   /// Return a label at a given \p Address in the function. If the label does
-  /// not exist - create it. Assert if the \p Address does not belong to
-  /// the function. If \p CreatePastEnd is true, then return the function
-  /// end label when the \p Address points immediately past the last byte
-  /// of the function.
+  /// not exist - create it.
+  ///
   /// NOTE: the function always returns a local (temp) symbol, even if there's
   ///       a global symbol that corresponds to an entry at this address.
-  MCSymbol *getOrCreateLocalLabel(uint64_t Address, bool CreatePastEnd = false);
+  MCSymbol *getOrCreateLocalLabel(uint64_t Address);
 
   /// Register an data entry at a given \p Offset into the function.
   void markDataAtOffset(uint64_t Offset) {

bolt/lib/Core/BinaryFunction.cpp

@@ -1035,13 +1035,9 @@ BinaryFunction::processIndirectBranch(MCInst &Instruction, unsigned Size,
   return BranchType;
 }
 
-MCSymbol *BinaryFunction::getOrCreateLocalLabel(uint64_t Address,
-                                                bool CreatePastEnd) {
+MCSymbol *BinaryFunction::getOrCreateLocalLabel(uint64_t Address) {
   const uint64_t Offset = Address - getAddress();
 
-  if ((Offset == getSize()) && CreatePastEnd)
-    return getFunctionEndLabel();
-
   auto LI = Labels.find(Offset);
   if (LI != Labels.end())
     return LI->second;
@@ -1052,6 +1048,9 @@ MCSymbol *BinaryFunction::getOrCreateLocalLabel(uint64_t Address,
       return IslandSym;
   }
 
+  if (Offset == getSize())
+    return getFunctionEndLabel();
+
   MCSymbol *Label = BC.Ctx->createNamedTempSymbol();
   Labels[Offset] = Label;
 
@@ -1994,7 +1993,7 @@ void BinaryFunction::postProcessJumpTables() {
       if (IsBuiltinUnreachable) {
         BinaryFunction *TargetBF = BC.getBinaryFunctionAtAddress(EntryAddress);
         MCSymbol *Label = TargetBF ? TargetBF->getSymbol()
-                                   : getOrCreateLocalLabel(EntryAddress, true);
+                                   : getOrCreateLocalLabel(EntryAddress);
         JT.Entries.push_back(Label);
         continue;
       }
@@ -2005,7 +2004,7 @@ void BinaryFunction::postProcessJumpTables() {
           BC.getBinaryFunctionContainingAddress(EntryAddress);
       MCSymbol *Label;
       if (HasOneParent && TargetBF == this) {
-        Label = getOrCreateLocalLabel(EntryAddress, true);
+        Label = getOrCreateLocalLabel(EntryAddress);
       } else {
         const uint64_t Offset = EntryAddress - TargetBF->getAddress();
         Label = Offset ? TargetBF->addEntryPointAtOffset(Offset)

bolt/lib/Rewrite/RewriteInstance.cpp

@@ -2949,9 +2949,7 @@ void RewriteInstance::handleRelocation(const SectionRef &RelocatedSection,
           ReferencedSymbol =
               ReferencedBF->addEntryPointAtOffset(RefFunctionOffset);
         } else {
-          ReferencedSymbol =
-              ReferencedBF->getOrCreateLocalLabel(Address,
-                                                  /*CreatePastEnd =*/true);
+          ReferencedSymbol = ReferencedBF->getOrCreateLocalLabel(Address);
 
           // If ContainingBF != nullptr, it equals ReferencedBF (see
           // if-condition above) so we're handling a relocation from a function