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, 1 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
index 75249bed674..165ef16dfbc 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
@@ -19,7 +19,7 @@ getEntry(AsmPrinter &Asm,
   std::pair<MCSymbol *, unsigned> &Entry = Pool[Str];
   if (!Entry.first) {
     Entry.second = Pool.size() - 1;
-    Entry.first = Asm.createTempSymbol(Prefix, Entry.second);
+    Entry.first = Asm.createTempSymbol(Prefix);
   }
   return Entry;
 }