Remove SymbolTable::isUndefined.

Because it can be implemented outside of the symbol table.

llvm-svn: 256869

3 files changed, 6 insertions, 11 deletions

diff --git a/lld/ELF/SymbolTable.cpp b/lld/ELF/SymbolTable.cpp
index 89ddfe969e3..0fbc836ff70 100644
--- a/lld/ELF/SymbolTable.cpp
+++ b/lld/ELF/SymbolTable.cpp
@@ -117,12 +117,6 @@ SymbolBody *SymbolTable<ELFT>::addIgnored(StringRef Name) {
   return Sym;
 }
 
-template <class ELFT> bool SymbolTable<ELFT>::isUndefined(StringRef Name) {
-  if (SymbolBody *Sym = find(Name))
-    return Sym->isUndefined();
-  return false;
-}
-
 // Returns a file from which symbol B was created.
 // If B does not belong to any file, returns a nullptr.
 template <class ELFT>
diff --git a/lld/ELF/SymbolTable.h b/lld/ELF/SymbolTable.h
index 1bd85abede6..41e4aac3af8 100644
--- a/lld/ELF/SymbolTable.h
+++ b/lld/ELF/SymbolTable.h
@@ -55,7 +55,6 @@ public:
   void addSynthetic(StringRef Name, OutputSectionBase<ELFT> &Section,
                     typename llvm::object::ELFFile<ELFT>::uintX_t Value);
   SymbolBody *addIgnored(StringRef Name);
-  bool isUndefined(StringRef Name);
   void scanShlibUndefined();
   SymbolBody *find(StringRef Name);
   ELFFileBase<ELFT> *findFile(SymbolBody *B);
diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
index 0c3752ee52d..2437a435657 100644
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -955,10 +955,12 @@ void Writer<ELFT>::addStartStopSymbols(OutputSectionBase<ELFT> *Sec) {
   StringSaver Saver(Alloc);
   StringRef Start = Saver.save("__start_" + S);
   StringRef Stop = Saver.save("__stop_" + S);
-  if (Symtab.isUndefined(Start))
-    Symtab.addSynthetic(Start, *Sec, 0);
-  if (Symtab.isUndefined(Stop))
-    Symtab.addSynthetic(Stop, *Sec, Sec->getSize());
+  if (SymbolBody *B = Symtab.find(Start))
+    if (B->isUndefined())
+      Symtab.addSynthetic(Start, *Sec, 0);
+  if (SymbolBody *B = Symtab.find(Stop))
+    if (B->isUndefined())
+      Symtab.addSynthetic(Stop, *Sec, Sec->getSize());
 }
 
 template <class ELFT> static bool needsPhdr(OutputSectionBase<ELFT> *Sec) {