There is no need to track compile unit offsets if there is only one compile unit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101315 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/AsmPrinter/DwarfDebug.cpp

@@ -2450,7 +2450,6 @@ void DwarfDebug::computeSizeAndOffsets() {
     sizeof(int8_t);   // Pointer Size (in bytes)
 
   computeSizeAndOffset(ModuleCU->getCUDie(), Offset, true);
-  CompileUnitOffsets[ModuleCU] = 0;
 }
 
 /// EmitSectionSym - Switch to the specified MCSection and emit an assembler

lib/CodeGen/AsmPrinter/DwarfDebug.h

@@ -193,11 +193,6 @@ class DwarfDebug {
   /// instruction.
   DenseMap<const MachineInstr *, MCSymbol *> InsnAfterLabelMap;
 
-  /// CompileUnitOffsets - A vector of the offsets of the compile units. This is
-  /// used when calculating the "origin" of a concrete instance of an inlined
-  /// function.
-  DenseMap<CompileUnit *, unsigned> CompileUnitOffsets;
-
   /// Previous instruction's location information. This is used to determine
   /// label location to indicate scope boundries in dwarf debug info.
   DebugLoc PrevInstLoc;