Revert change in MachineBasicBlock.h

Author: rlavaee

llvm/include/llvm/CodeGen/AsmPrinter.h

@@ -135,7 +135,8 @@ class LLVM_ABI AsmPrinter : public MachineFunctionPass {
   /// default, this is equal to CurrentFnSym.
   MCSymbol *CurrentFnSymForSize = nullptr;
 
-  /// Vector of symbols marking the position of callsites in each basic block.
+  /// Vector of symbols marking the position of callsites in the current
+  /// function, keyed by their containing basic block.
   /// The callsite symbols of each block are stored in the order they appear
   /// in that block.
   DenseMap<const MachineBasicBlock *, SmallVector<MCSymbol *, 1>>
@@ -301,7 +302,7 @@ class LLVM_ABI AsmPrinter : public MachineFunctionPass {
   /// to emit them as well, return the whole set.
   ArrayRef<MCSymbol *> getAddrLabelSymbolToEmit(const BasicBlock *BB);
 
-  /// Creates a new symbol to be used for the beginning of a callsite at th
+  /// Creates a new symbol to be used for the beginning of a callsite at the
   /// specified basic block.
   MCSymbol *createCallsiteSymbol(const MachineBasicBlock &MBB);
 

llvm/include/llvm/CodeGen/MachineBasicBlock.h

@@ -725,10 +725,6 @@ class MachineBasicBlock
   /// Returns the MCSymbol marking the end of this basic block.
   LLVM_ABI MCSymbol *getEndSymbol() const;
 
-  /// Returns a temporary MCSymbol marking the beginning of a callsite, and
-  /// appends it to `CallsiteSymbols`.
-  MCSymbol *createCallsiteSymbol() const;
-
   /// Returns true if this block may have an INLINEASM_BR (overestimate, by
   /// checking if any of the successors are indirect targets of any inlineasm_br
   /// in the function).

llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp

@@ -1497,8 +1497,7 @@ void AsmPrinter::emitBBAddrMapSection(const MachineFunction &MF) {
       emitLabelDifferenceAsULEB128(MBBSymbol, PrevMBBEndSymbol);
       const MCSymbol *CurrentLabel = MBBSymbol;
       if (HasCalls) {
-        const SmallVectorImpl<MCSymbol *> &CallsiteSymbols =
-            CurrentFnCallsiteSymbols.lookup(&MBB);
+        auto CallsiteSymbols = CurrentFnCallsiteSymbols.lookup(&MBB);
         OutStreamer->AddComment("number of callsites");
         OutStreamer->emitULEB128IntValue(CallsiteSymbols.size());
         for (const MCSymbol *CallsiteSymbol : CallsiteSymbols) {