Add the private linkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 13 insertions, 6 deletions

diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 6627543..5b665a0 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -139,7 +139,7 @@ void AsmPrinter::getAnalysisUsage(AnalysisUsage &AU) const {
 }
 
 bool AsmPrinter::doInitialization(Module &M) {
-  Mang = new Mangler(M, TAI->getGlobalPrefix());
+  Mang = new Mangler(M, TAI->getGlobalPrefix(), TAI->getPrivateGlobalPrefix());
   
   GCModuleInfo *MI = getAnalysisToUpdate<GCModuleInfo>();
   assert(MI && "AsmPrinter didn't require GCModuleInfo?");
@@ -199,7 +199,7 @@ bool AsmPrinter::doFinalization(Module &M) {
         O << "\t.globl\t" << Name << '\n';
       else if (I->hasWeakLinkage())
         O << TAI->getWeakRefDirective() << Name << '\n';
-      else if (!I->hasInternalLinkage())
+      else if (!I->hasLocalLinkage())
         assert(0 && "Invalid alias linkage");
 
       printVisibility(Name, I->getVisibility());
diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index 09d169b..02f27d1 100644
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -3272,7 +3272,8 @@ private:
     // Externally visible entry into the functions eh frame info.
     // If the corresponding function is static, this should not be
     // externally visible.
-    if (linkage != Function::InternalLinkage) {
+    if (linkage != Function::InternalLinkage &&
+	linkage != Function::PrivateLinkage) {
       if (const char *GlobalEHDirective = TAI->getGlobalEHDirective())
         O << GlobalEHDirective << EHFrameInfo.FnName << "\n";
     }
diff --git a/lib/CodeGen/ELFWriter.cpp b/lib/CodeGen/ELFWriter.cpp
index 5d2fca1..b698178 100644
--- a/lib/CodeGen/ELFWriter.cpp
+++ b/lib/CodeGen/ELFWriter.cpp
@@ -174,6 +174,8 @@ bool ELFCodeEmitter::finishFunction(MachineFunction &F) {
   case GlobalValue::WeakLinkage:
     FnSym.SetBind(ELFWriter::ELFSym::STB_WEAK);
     break;
+  case GlobalValue::PrivateLinkage:
+    assert (0 && "PrivateLinkage should not be in the symbol table.");
   case GlobalValue::InternalLinkage:
     FnSym.SetBind(ELFWriter::ELFSym::STB_LOCAL);
     break;
@@ -329,7 +331,8 @@ void ELFWriter::EmitGlobal(GlobalVariable *GV) {
 
     // Set the idx of the .bss section
     BSSSym.SectionIdx = BSSSection.SectionIdx;
-    SymbolTable.push_back(BSSSym);
+    if (!GV->hasPrivateLinkage())
+      SymbolTable.push_back(BSSSym);
 
     // Reserve space in the .bss section for this symbol.
     BSSSection.Size += Size;
diff --git a/lib/CodeGen/MachOWriter.cpp b/lib/CodeGen/MachOWriter.cpp
index ae1f0d4..ef37db8 100644
--- a/lib/CodeGen/MachOWriter.cpp
+++ b/lib/CodeGen/MachOWriter.cpp
@@ -371,7 +371,7 @@ void MachOWriter::AddSymbolToSection(MachOSection *Sec, GlobalVariable *GV) {
       SecDataOut.outbyte(0);
   }
   // Globals without external linkage apparently do not go in the symbol table.
-  if (GV->getLinkage() != GlobalValue::InternalLinkage) {
+  if (!GV->hasLocalLinkage()) {
     MachOSym Sym(GV, Mang->getValueName(GV), Sec->Index, TM);
     Sym.n_value = Sec->size;
     SymbolTable.push_back(Sym);
@@ -959,6 +959,9 @@ MachOSym::MachOSym(const GlobalValue *gv, std::string name, uint8_t sect,
     GVName = TAI->getGlobalPrefix() + name;
     n_type |= GV->hasHiddenVisibility() ? N_PEXT : N_EXT;
     break;
+  case GlobalValue::PrivateLinkage:
+    GVName = TAI->getPrivateGlobalPrefix() + name;
+    break;
   case GlobalValue::InternalLinkage:
     GVName = TAI->getGlobalPrefix() + name;
     break;
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 60a4f61..49b7ad8 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -4276,7 +4276,7 @@ void SelectionDAGLowering::visitCall(CallInst &I) {
     // Check for well-known libc/libm calls.  If the function is internal, it
     // can't be a library call.
     unsigned NameLen = F->getNameLen();
-    if (!F->hasInternalLinkage() && NameLen) {
+    if (!F->hasLocalLinkage() && NameLen) {
       const char *NameStr = F->getNameStart();
       if (NameStr[0] == 'c' &&
           ((NameLen == 8 && !strcmp(NameStr, "copysign")) ||