commit a99ccfce1a7e9c789c353e85dc8f2b1b90c34dbe
author Rafael Espindola <rafael.espindola@gmail.com> Wed Jun 29 14:59:50 2016 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Wed Jun 29 14:59:50 2016 +0000
tree b386651b6403f8d3d17932ce9577f50cdae5ee57
parent c4cabb8054af3a51181c23537e9af6fac4e3c23a

Drop support for creating $stubs.

They are created by ld64 since OS X 10.5.

llvm-svn: 274130

llvm/lib/Target/PowerPC/PPCMCInstLower.cpp

diff --git a/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp b/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
index 1fcff52..18377a4 100644
--- a/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
+++ b/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
@@ -40,21 +40,15 @@
   Mangler *Mang = AP.Mang;
   const DataLayout &DL = AP.getDataLayout();
   MCContext &Ctx = AP.OutContext;
-  bool isDarwin = TM.getTargetTriple().isOSDarwin();
 
   SmallString<128> Name;
   StringRef Suffix;
-  if (MO.getTargetFlags() == PPCII::MO_PLT_OR_STUB) {
-    if (isDarwin)
-      Suffix = "$stub";
-  } else if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG)
+  if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG)
     Suffix = "$non_lazy_ptr";
 
   if (!Suffix.empty())
     Name += DL.getPrivateGlobalPrefix();
 
-  unsigned PrefixLen = Name.size();
-
   if (!MO.isGlobal()) {
     assert(MO.isSymbol() && "Isn't a symbol reference");
     Mangler::getNameWithPrefix(Name, MO.getSymbolName(), DL);
@@ -63,32 +57,8 @@
     TM.getNameWithPrefix(Name, GV, *Mang);
   }
 
-  unsigned OrigLen = Name.size() - PrefixLen;
-
   Name += Suffix;
   MCSymbol *Sym = Ctx.getOrCreateSymbol(Name);
-  StringRef OrigName = StringRef(Name).substr(PrefixLen, OrigLen);
-
-  // If the target flags on the operand changes the name of the symbol, do that
-  // before we return the symbol.
-  if (MO.getTargetFlags() == PPCII::MO_PLT_OR_STUB && isDarwin) {
-    MachineModuleInfoImpl::StubValueTy &StubSym =
-      getMachOMMI(AP).getFnStubEntry(Sym);
-    if (StubSym.getPointer())
-      return Sym;
-    
-    if (MO.isGlobal()) {
-      StubSym =
-      MachineModuleInfoImpl::
-      StubValueTy(AP.getSymbol(MO.getGlobal()),
-                  !MO.getGlobal()->hasInternalLinkage());
-    } else {
-      StubSym =
-      MachineModuleInfoImpl::
-      StubValueTy(Ctx.getOrCreateSymbol(OrigName), false);
-    }
-    return Sym;
-  }
 
   // If the symbol reference is actually to a non_lazy_ptr, not to the symbol,
   // then add the suffix.
@@ -137,7 +107,7 @@
       break;
   }
 
-  if (MO.getTargetFlags() == PPCII::MO_PLT_OR_STUB && !isDarwin)
+  if (MO.getTargetFlags() == PPCII::MO_PLT)
     RefKind = MCSymbolRefExpr::VK_PLT;
 
   const MCExpr *Expr = MCSymbolRefExpr::create(Symbol, RefKind, Ctx);