Centralize the handling of unique ids for temporary labels.

Before this patch code wanting to create temporary labels for a given entity
(function, cu, exception range, etc) had to keep its own counter to have stable
symbol names.

createTempSymbol would still add a suffix to make sure a new symbol was always
returned, but it kept a single counter. Because of that, if we were to use
just createTempSymbol("cu_begin"), the label could change from cu_begin42 to
cu_begin43 because some other code started using temporary labels.

Simplify this by just keeping one counter per prefix and removing the various
specialized counters.

llvm-svn: 232535

1 files changed, 0 insertions, 9 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 3a5a7f66094..74db3efcea6 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -248,9 +248,6 @@ class DwarfDebug : public AsmPrinterHandler {
   // table for the same directory as DW_AT_comp_dir.
   StringRef CompilationDir;
 
-  // Counter for assigning globally unique IDs for ranges.
-  unsigned GlobalRangeCount;
-
   // Holder for the file specific debug information.
   DwarfFile InfoHolder;
 
@@ -619,12 +616,6 @@ public:
   /// \brief Return Label immediately following the instruction.
   MCSymbol *getLabelAfterInsn(const MachineInstr *MI);
 
-  // FIXME: Consider rolling ranges up into DwarfDebug since we use a single
-  // range_base anyway, so there's no need to keep them as separate per-CU range
-  // lists. (though one day we might end up with a range.dwo section, in which
-  // case it'd go to DwarfFile)
-  unsigned getNextRangeNumber() { return GlobalRangeCount++; }
-
   // FIXME: Sink these functions down into DwarfFile/Dwarf*Unit.
 
   SmallPtrSet<const MDNode *, 16> &getProcessedSPNodes() {