[lld] r317425 - Remove dead code and update comment.

[Rui Ueyama via llvm-commits]

Author: ruiu
Date: Sat Nov  4 15:32:56 2017
New Revision: 317425

URL: http://llvm.org/viewvc/llvm-project?rev=317425&view=rev
Log:
Remove dead code and update comment.

Modified:
    lld/trunk/ELF/SymbolTable.cpp
    lld/trunk/ELF/SymbolTable.h

Modified: lld/trunk/ELF/SymbolTable.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/SymbolTable.cpp?rev=317425&r1=317424&r2=317425&view=diff
==============================================================================
--- lld/trunk/ELF/SymbolTable.cpp (original)
+++ lld/trunk/ELF/SymbolTable.cpp Sat Nov  4 15:32:56 2017
@@ -162,21 +162,9 @@ template <class ELFT> void SymbolTable::
   WrapSymbols.push_back({Wrap, Real});
 }
 
-// Creates alias for symbol. Used to implement --defsym=ALIAS=SYM.
-template <class ELFT>
-void SymbolTable::addSymbolAlias(StringRef Alias, StringRef Name) {
-  Symbol *B = find(Name);
-  if (!B) {
-    error("-defsym: undefined symbol: " + Name);
-    return;
-  }
-
-  defsym(addUndefined<ELFT>(Alias), B);
-}
-
-// Apply symbol renames created by -wrap and -defsym. The renames are created
-// before LTO in addSymbolWrap() and addSymbolAlias() to have a chance to inform
-// LTO (if LTO is running) not to include these symbols in IPO. Now that the
+// Apply symbol renames created by -wrap. The renames are created
+// before LTO in addSymbolWrap() to have a chance to inform LTO (if
+// LTO is running) not to include these symbols in IPO. Now that the
 // symbols are finalized, we can perform the replacement.
 void SymbolTable::applySymbolRenames() {
   // This function rotates 3 symbols:
@@ -816,11 +804,6 @@ template Symbol *SymbolTable::addUndefin
                                                     uint8_t, uint8_t, bool,
                                                     InputFile *);
 
-template void SymbolTable::addSymbolAlias<ELF32LE>(StringRef, StringRef);
-template void SymbolTable::addSymbolAlias<ELF32BE>(StringRef, StringRef);
-template void SymbolTable::addSymbolAlias<ELF64LE>(StringRef, StringRef);
-template void SymbolTable::addSymbolAlias<ELF64BE>(StringRef, StringRef);
-
 template void SymbolTable::addCombinedLTOObject<ELF32LE>();
 template void SymbolTable::addCombinedLTOObject<ELF32BE>();
 template void SymbolTable::addCombinedLTOObject<ELF64LE>();

Modified: lld/trunk/ELF/SymbolTable.h
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/SymbolTable.h?rev=317425&r1=317424&r2=317425&view=diff
==============================================================================
--- lld/trunk/ELF/SymbolTable.h (original)
+++ lld/trunk/ELF/SymbolTable.h Sat Nov  4 15:32:56 2017
@@ -35,7 +35,6 @@ class SymbolTable {
 public:
   template <class ELFT> void addFile(InputFile *File);
   template <class ELFT> void addCombinedLTOObject();
-  template <class ELFT> void addSymbolAlias(StringRef Alias, StringRef Name);
   template <class ELFT> void addSymbolWrap(StringRef Name);
   void applySymbolRenames();