Remove the dependent libraries feature.

The dependent libraries feature was never used and has bit-rotted. Remove it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168694 91177308-0d34-0410-b5e6-96231b3b80d8

20 files changed, 1 insertions, 158 deletions

diff --git a/include/llvm/Bitcode/LLVMBitCodes.h b/include/llvm/Bitcode/LLVMBitCodes.h
index 3c7c2b3a06..1d32a93900 100644
--- a/include/llvm/Bitcode/LLVMBitCodes.h
+++ b/include/llvm/Bitcode/LLVMBitCodes.h
@@ -54,7 +54,6 @@ namespace bitc {
     MODULE_CODE_DATALAYOUT  = 3,    // DATALAYOUT:  [strchr x N]
     MODULE_CODE_ASM         = 4,    // ASM:         [strchr x N]
     MODULE_CODE_SECTIONNAME = 5,    // SECTIONNAME: [strchr x N]
-    MODULE_CODE_DEPLIB      = 6,    // DEPLIB:      [strchr x N]
 
     // GLOBALVAR: [pointer type, isconst, initid,
     //             linkage, alignment, section, visibility, threadlocal]
diff --git a/include/llvm/Module.h b/include/llvm/Module.h
index e6303ac775..43d4d6a00f 100644
--- a/include/llvm/Module.h
+++ b/include/llvm/Module.h
@@ -21,7 +21,6 @@
 #include "llvm/Metadata.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/Support/DataTypes.h"
-#include <vector>
 
 namespace llvm {
 
@@ -122,9 +121,6 @@ public:
   /// The type for the list of named metadata.
   typedef ilist<NamedMDNode> NamedMDListType;
 
-  /// The type for the list of dependent libraries.
-  typedef std::vector<std::string> LibraryListType;
-
   /// The Global Variable iterator.
   typedef GlobalListType::iterator                      global_iterator;
   /// The Global Variable constant iterator.
@@ -144,8 +140,6 @@ public:
   typedef NamedMDListType::iterator             named_metadata_iterator;
   /// The named metadata constant interators.
   typedef NamedMDListType::const_iterator const_named_metadata_iterator;
-  /// The Library list iterator.
-  typedef LibraryListType::const_iterator lib_iterator;
 
   /// An enumeration for describing the endianess of the target machine.
   enum Endianness  { AnyEndianness, LittleEndian, BigEndian };
@@ -195,7 +189,6 @@ private:
   GlobalListType GlobalList;      ///< The Global Variables in the module
   FunctionListType FunctionList;  ///< The Functions in the module
   AliasListType AliasList;        ///< The Aliases in the module
-  LibraryListType LibraryList;    ///< The Libraries needed by the module
   NamedMDListType NamedMDList;    ///< The named metadata in the module
   std::string GlobalScopeAsm;     ///< Inline Asm at global scope.
   ValueSymbolTable *ValSymTab;    ///< Symbol table for values
@@ -527,23 +520,6 @@ public:
   bool                    empty() const { return FunctionList.empty(); }
 
 /// @}
-/// @name Dependent Library Iteration
-/// @{
-
-  /// @brief Get a constant iterator to beginning of dependent library list.
-  inline lib_iterator lib_begin() const { return LibraryList.begin(); }
-  /// @brief Get a constant iterator to end of dependent library list.
-  inline lib_iterator lib_end()   const { return LibraryList.end();   }
-  /// @brief Returns the number of items in the list of libraries.
-  inline size_t       lib_size()  const { return LibraryList.size();  }
-  /// @brief Add a library to the list of dependent libraries
-  void addLibrary(StringRef Lib);
-  /// @brief Remove a library from the list of dependent libraries
-  void removeLibrary(StringRef Lib);
-  /// @brief Get all the libraries
-  inline const LibraryListType& getLibraries() const { return LibraryList; }
-
-/// @}
 /// @name Alias Iteration
 /// @{
 
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index eb176aefcb..c498da7352 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -486,7 +486,6 @@ lltok::Kind LLLexer::LexIdentifier() {
   KEYWORD(target);
   KEYWORD(triple);
   KEYWORD(unwind);
-  KEYWORD(deplibs);
   KEYWORD(datalayout);
   KEYWORD(volatile);
   KEYWORD(atomic);
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 65f4245062..8a9f951908 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -168,7 +168,6 @@ bool LLParser::ParseTopLevelEntities() {
     case lltok::kw_define:  if (ParseDefine()) return true; break;
     case lltok::kw_module:  if (ParseModuleAsm()) return true; break;
     case lltok::kw_target:  if (ParseTargetDefinition()) return true; break;
-    case lltok::kw_deplibs: if (ParseDepLibs()) return true; break;
     case lltok::LocalVarID: if (ParseUnnamedType()) return true; break;
     case lltok::LocalVar:   if (ParseNamedType()) return true; break;
     case lltok::GlobalID:   if (ParseUnnamedGlobal()) return true; break;
@@ -264,31 +263,6 @@ bool LLParser::ParseTargetDefinition() {
   }
 }
 
-/// toplevelentity
-///   ::= 'deplibs' '=' '[' ']'
-///   ::= 'deplibs' '=' '[' STRINGCONSTANT (',' STRINGCONSTANT)* ']'
-bool LLParser::ParseDepLibs() {
-  assert(Lex.getKind() == lltok::kw_deplibs);
-  Lex.Lex();
-  if (ParseToken(lltok::equal, "expected '=' after deplibs") ||
-      ParseToken(lltok::lsquare, "expected '=' after deplibs"))
-    return true;
-
-  if (EatIfPresent(lltok::rsquare))
-    return false;
-
-  std::string Str;
-  if (ParseStringConstant(Str)) return true;
-  M->addLibrary(Str);
-
-  while (EatIfPresent(lltok::comma)) {
-    if (ParseStringConstant(Str)) return true;
-    M->addLibrary(Str);
-  }
-
-  return ParseToken(lltok::rsquare, "expected ']' at end of list");
-}
-
 /// ParseUnnamedType:
 ///   ::= LocalVarID '=' 'type' type
 bool LLParser::ParseUnnamedType() {
diff --git a/lib/AsmParser/LLParser.h b/lib/AsmParser/LLParser.h
index 8e04705a7b..5cebd974f3 100644
--- a/lib/AsmParser/LLParser.h
+++ b/lib/AsmParser/LLParser.h
@@ -216,7 +216,6 @@ namespace llvm {
     bool ParseTopLevelEntities();
     bool ValidateEndOfModule();
     bool ParseTargetDefinition();
-    bool ParseDepLibs();
     bool ParseModuleAsm();
     bool ParseUnnamedType();
     bool ParseNamedType();
diff --git a/lib/AsmParser/LLToken.h b/lib/AsmParser/LLToken.h
index 1ec1b1e126..d102d91b3b 100644
--- a/lib/AsmParser/LLToken.h
+++ b/lib/AsmParser/LLToken.h
@@ -54,7 +54,6 @@ namespace lltok {
     kw_target,
     kw_triple,
     kw_unwind,
-    kw_deplibs,
     kw_datalayout,
     kw_volatile,
     kw_atomic,
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 944a3255cd..dcbd68aee2 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1564,13 +1564,6 @@ bool BitcodeReader::ParseModule(bool Resume) {
       TheModule->setModuleInlineAsm(S);
       break;
     }
-    case bitc::MODULE_CODE_DEPLIB: {  // DEPLIB: [strchr x N]
-      std::string S;
-      if (ConvertToString(Record, 0, S))
-        return Error("Invalid MODULE_CODE_DEPLIB record");
-      TheModule->addLibrary(S);
-      break;
-    }
     case bitc::MODULE_CODE_SECTIONNAME: {  // SECTIONNAME: [strchr x N]
       std::string S;
       if (ConvertToString(Record, 0, S))
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 6206479b8d..d9493afca7 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -392,10 +392,6 @@ static unsigned getEncodedThreadLocalMode(const GlobalVariable *GV) {
 // descriptors for global variables, and function prototype info.
 static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
                             BitstreamWriter &Stream) {
-  // Emit the list of dependent libraries for the Module.
-  for (Module::lib_iterator I = M->lib_begin(), E = M->lib_end(); I != E; ++I)
-    WriteStringRecord(bitc::MODULE_CODE_DEPLIB, *I, 0/*TODO*/, Stream);
-
   // Emit various pieces of data attached to a module.
   if (!M->getTargetTriple().empty())
     WriteStringRecord(bitc::MODULE_CODE_TRIPLE, M->getTargetTriple(),
diff --git a/lib/Linker/LinkItems.cpp b/lib/Linker/LinkItems.cpp
index 52a0d175a5..e4fecebc38 100644
--- a/lib/Linker/LinkItems.cpp
+++ b/lib/Linker/LinkItems.cpp
@@ -51,20 +51,6 @@ Linker::LinkInItems(const ItemList& Items, ItemList& NativeItems) {
     }
   }
 
-  // At this point we have processed all the link items provided to us. Since
-  // we have an aggregated module at this point, the dependent libraries in
-  // that module should also be aggregated with duplicates eliminated. This is
-  // now the time to process the dependent libraries to resolve any remaining
-  // symbols.
-  bool is_native;
-  for (Module::lib_iterator I = Composite->lib_begin(),
-         E = Composite->lib_end(); I != E; ++I) {
-    if(LinkInLibrary(*I, is_native))
-      return true;
-    if (is_native)
-      NativeItems.push_back(std::make_pair(*I, true));
-  }
-
   return false;
 }
 
@@ -128,17 +114,6 @@ bool Linker::LinkInLibraries(const std::vector<std::string> &Libraries) {
     if (LinkInLibrary(Libraries[i], is_native))
       return true;
 
-  // At this point we have processed all the libraries provided to us. Since
-  // we have an aggregated module at this point, the dependent libraries in
-  // that module should also be aggregated with duplicates eliminated. This is
-  // now the time to process the dependent libraries to resolve any remaining
-  // symbols.
-  const Module::LibraryListType& DepLibs = Composite->getLibraries();
-  for (Module::LibraryListType::const_iterator I = DepLibs.begin(),
-         E = DepLibs.end(); I != E; ++I)
-    if (LinkInLibrary(*I, is_native))
-      return true;
-
   return false;
 }
 
diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index a6599bfe4f..62f9d19314 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -1187,19 +1187,6 @@ bool ModuleLinker::run() {
                                SrcM->getModuleInlineAsm());
   }
 
-  // Update the destination module's dependent libraries list with the libraries
-  // from the source module. There's no opportunity for duplicates here as the
-  // Module ensures that duplicate insertions are discarded.
-  for (Module::lib_iterator SI = SrcM->lib_begin(), SE = SrcM->lib_end();
-       SI != SE; ++SI)
-    DstM->addLibrary(*SI);
-  
-  // If the source library's module id is in the dependent library list of the
-  // destination library, remove it since that module is now linked in.
-  StringRef ModuleId = SrcM->getModuleIdentifier();
-  if (!ModuleId.empty())
-    DstM->removeLibrary(sys::path::stem(ModuleId));
-  
   // Loop over all of the linked values to compute type mappings.
   computeTypeMapping();
 
diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp
index 5c909903f9..b5a20373bb 100644
--- a/lib/Target/CppBackend/CPPBackend.cpp
+++ b/lib/Target/CppBackend/CPPBackend.cpp
@@ -1941,14 +1941,6 @@ void CppWriter::printModule(const std::string& fname,
   }
   nl(Out);
 
-  // Loop over the dependent libraries and emit them.
-  Module::lib_iterator LI = TheModule->lib_begin();
-  Module::lib_iterator LE = TheModule->lib_end();
-  while (LI != LE) {
-    Out << "mod->addLibrary(\"" << *LI << "\");";
-    nl(Out);
-    ++LI;
-  }
   printModuleBody();
   nl(Out) << "return mod;";
   nl(Out,-1) << "}";
diff --git a/lib/Transforms/Utils/CloneModule.cpp b/lib/Transforms/Utils/CloneModule.cpp
index 1dac6b5b8b..22a8e4bc2d 100644
--- a/lib/Transforms/Utils/CloneModule.cpp
+++ b/lib/Transforms/Utils/CloneModule.cpp
@@ -38,10 +38,6 @@ Module *llvm::CloneModule(const Module *M, ValueToValueMapTy &VMap) {
   New->setTargetTriple(M->getTargetTriple());
   New->setModuleInlineAsm(M->getModuleInlineAsm());
    
-  // Copy all of the dependent libraries over.
-  for (Module::lib_iterator I = M->lib_begin(), E = M->lib_end(); I != E; ++I)
-    New->addLibrary(*I);
-
   // Loop over all of the global variables, making corresponding globals in the
   // new module.  Here we add them to the VMap and to the new Module.  We
   // don't worry about attributes or initializers, they will come later.
diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp
index 433f3e011d..aa70498c07 100644
--- a/lib/VMCore/AsmWriter.cpp
+++ b/lib/VMCore/AsmWriter.cpp
@@ -1303,21 +1303,6 @@ void AssemblyWriter::printModule(const Module *M) {
     }
   }
 
-  // Loop over the dependent libraries and emit them.
-  Module::lib_iterator LI = M->lib_begin();
-  Module::lib_iterator LE = M->lib_end();
-  if (LI != LE) {
-    Out << '\n';
-    Out << "deplibs = [ ";
-    while (LI != LE) {
-      Out << '"' << *LI << '"';
-      ++LI;
-      if (LI != LE)
-        Out << ", ";
-    }
-    Out << " ]";
-  }
-
   printTypeIdentities();
 
   // Output all globals.
diff --git a/lib/VMCore/Module.cpp b/lib/VMCore/Module.cpp
index 5b5176b3c7..3602a7a8f3 100644
--- a/lib/VMCore/Module.cpp
+++ b/lib/VMCore/Module.cpp
@@ -55,7 +55,6 @@ Module::~Module() {
   GlobalList.clear();
   FunctionList.clear();
   AliasList.clear();
-  LibraryList.clear();
   NamedMDList.clear();
   delete ValSymTab;
   delete static_cast<StringMap<NamedMDNode *> *>(NamedMDSymTab);
@@ -450,20 +449,3 @@ void Module::dropAllReferences() {
   for(Module::alias_iterator I = alias_begin(), E = alias_end(); I != E; ++I)
     I->dropAllReferences();
 }
-
-void Module::addLibrary(StringRef Lib) {
-  for (Module::lib_iterator I = lib_begin(), E = lib_end(); I != E; ++I)
-    if (*I == Lib)
-      return;
-  LibraryList.push_back(Lib);
-}
-
-void Module::removeLibrary(StringRef Lib) {
-  LibraryListType::iterator I = LibraryList.begin();
-  LibraryListType::iterator E = LibraryList.end();
-  for (;I != E; ++I)
-    if (*I == Lib) {
-      LibraryList.erase(I);
-      return;
-    }
-}
diff --git a/test/Feature/properties.ll b/test/Feature/properties.ll
index c688d689be..2111fa2f8d 100644
--- a/test/Feature/properties.ll
+++ b/test/Feature/properties.ll
@@ -4,4 +4,3 @@
 
 target datalayout = "e-p:32:32"
 target triple = "proc-vend-sys"
-deplibs = [ "m", "c" ]
diff --git a/test/Integer/properties_bt.ll b/test/Integer/properties_bt.ll
index f24ddc2e80..695adf3c5f 100644
--- a/test/Integer/properties_bt.ll
+++ b/test/Integer/properties_bt.ll
@@ -5,5 +5,3 @@
 
 target datalayout = "e-p:32:32"
 target triple = "proc-vend-sys"
-deplibs = [ "m", "c" ]
-
diff --git a/test/Linker/2006-01-19-ConstantPacked.ll b/test/Linker/2006-01-19-ConstantPacked.ll
index d2409e20c4..5b39cb2ad2 100644
--- a/test/Linker/2006-01-19-ConstantPacked.ll
+++ b/test/Linker/2006-01-19-ConstantPacked.ll
@@ -3,11 +3,8 @@
 
 target datalayout = "E-p:32:32"
 target triple = "powerpc-apple-darwin7.7.0"
-deplibs = [ "c", "crtend" ]
 @source = global <4 x i32> < i32 0, i32 1, i32 2, i32 3 >		; <<4 x i32>*> [#uses=0]
 
 define i32 @main() {
-entry:
-	ret i32 0
+  ret i32 0
 }
-
diff --git a/test/Transforms/Inline/2006-11-09-InlineCGUpdate-2.ll b/test/Transforms/Inline/2006-11-09-InlineCGUpdate-2.ll
index b4380d01e4..ee5a378b18 100644
--- a/test/Transforms/Inline/2006-11-09-InlineCGUpdate-2.ll
+++ b/test/Transforms/Inline/2006-11-09-InlineCGUpdate-2.ll
@@ -2,7 +2,6 @@
 ; PR993
 target datalayout = "e-p:32:32"
 target triple = "i386-unknown-openbsd3.9"
-deplibs = [ "stdc++", "c", "crtend" ]
 	%"struct.__gnu_cxx::__normal_iterator<char*,std::basic_string<char, std::char_traits<char>, std::allocator<char> > >" = type { i8* }
 	%"struct.__gnu_cxx::char_producer<char>" = type { i32 (...)** }
 	%struct.__sFILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, i8*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
diff --git a/test/Transforms/Inline/2006-11-09-InlineCGUpdate.ll b/test/Transforms/Inline/2006-11-09-InlineCGUpdate.ll
index b754d9f9f5..fb5a4b512b 100644
--- a/test/Transforms/Inline/2006-11-09-InlineCGUpdate.ll
+++ b/test/Transforms/Inline/2006-11-09-InlineCGUpdate.ll
@@ -2,7 +2,6 @@
 ; PR992
 target datalayout = "e-p:32:32"
 target triple = "i686-pc-linux-gnu"
-deplibs = [ "stdc++", "c", "crtend" ]
 	%struct._IO_FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct._IO_FILE*, i32, i32, i32, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i32, [52 x i8] }
 	%struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, i32 }
 	%"struct.__cxxabiv1::__array_type_info" = type { %"struct.std::type_info" }
diff --git a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
index 8109ca4d5b..9f23d573f6 100644
--- a/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
+++ b/tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
@@ -150,7 +150,6 @@ static const char *GetCodeName(unsigned CodeID, unsigned BlockID,
     case bitc::MODULE_CODE_DATALAYOUT:  return "DATALAYOUT";
     case bitc::MODULE_CODE_ASM:         return "ASM";
     case bitc::MODULE_CODE_SECTIONNAME: return "SECTIONNAME";
-    case bitc::MODULE_CODE_DEPLIB:      return "DEPLIB";
     case bitc::MODULE_CODE_GLOBALVAR:   return "GLOBALVAR";
     case bitc::MODULE_CODE_FUNCTION:    return "FUNCTION";
     case bitc::MODULE_CODE_ALIAS:       return "ALIAS";