Revert r100191 since it breaks objc in clang

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 70 deletions

diff --git a/lib/VMCore/AutoUpgrade.cpp b/lib/VMCore/AutoUpgrade.cpp
index 4d06b66..b9aa5c3 100644
--- a/lib/VMCore/AutoUpgrade.cpp
+++ b/lib/VMCore/AutoUpgrade.cpp
@@ -145,54 +145,6 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
     }
     break;
 
-  case 'm': {
-    // This upgrades the llvm.memcpy, llvm.memmove, and llvm.memset to the
-    // new format that allows overloading the pointer for different address
-    // space (e.g., llvm.memcpy.i16 => llvm.memcpy.p0i8.p0i8.i16)
-    const char* NewFnName = NULL;
-    if (Name.compare(5,8,"memcpy.i",8) == 0) {
-      if (Name[13] == '8')
-        NewFnName = "llvm.memcpy.p0i8.p0i8.i8";
-      else if (Name.compare(13,2,"16") == 0)
-        NewFnName = "llvm.memcpy.p0i8.p0i8.i16";
-      else if (Name.compare(13,2,"32") == 0)
-        NewFnName = "llvm.memcpy.p0i8.p0i8.i32";
-      else if (Name.compare(13,2,"64") == 0)
-        NewFnName = "llvm.memcpy.p0i8.p0i8.i64";
-    } else if (Name.compare(5,9,"memmove.i",9) == 0) {
-      if (Name[14] == '8')
-        NewFnName = "llvm.memmove.p0i8.p0i8.i8";
-      else if (Name.compare(14,2,"16") == 0)
-        NewFnName = "llvm.memmove.p0i8.p0i8.i16";
-      else if (Name.compare(14,2,"32") == 0)
-        NewFnName = "llvm.memmove.p0i8.p0i8.i32";
-      else if (Name.compare(14,2,"64") == 0)
-        NewFnName = "llvm.memmove.p0i8.p0i8.i64";
-    }
-    else if (Name.compare(5,8,"memset.i",8) == 0) {
-      if (Name[13] == '8')
-        NewFnName = "llvm.memset.p0i8.i8";
-      else if (Name.compare(13,2,"16") == 0)
-        NewFnName = "llvm.memset.p0i8.i16";
-      else if (Name.compare(13,2,"32") == 0)
-        NewFnName = "llvm.memset.p0i8.i32";
-      else if (Name.compare(13,2,"64") == 0)
-        NewFnName = "llvm.memset.p0i8.i64";
-    }
-    if (NewFnName) {
-      const FunctionType *FTy = F->getFunctionType();
-      NewFn = cast<Function>(M->getOrInsertFunction(NewFnName, 
-                                            FTy->getReturnType(),
-                                            FTy->getParamType(0),
-                                            FTy->getParamType(1),
-                                            FTy->getParamType(2),
-                                            FTy->getParamType(3),
-                                            Type::getInt1Ty(F->getContext()),
-                                            (Type *)0));
-      return true;
-    }
-    break;
-  }
   case 'p':
     //  This upgrades the llvm.part.select overloaded intrinsic names to only 
     //  use one type specifier in the name. We only care about the old format
@@ -520,28 +472,6 @@ void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
     CI->eraseFromParent();
   }
   break;
-  case Intrinsic::memcpy:
-  case Intrinsic::memmove:
-  case Intrinsic::memset: {
-    // Add isVolatile
-    const llvm::Type *I1Ty = llvm::Type::getInt1Ty(CI->getContext());
-    Value *Operands[5] = { CI->getOperand(1), CI->getOperand(2),
-                           CI->getOperand(3), CI->getOperand(4),
-                           llvm::ConstantInt::get(I1Ty, 0) };
-    CallInst *NewCI = CallInst::Create(NewFn, Operands, Operands+5,
-                                       CI->getName(), CI);
-    NewCI->setTailCall(CI->isTailCall());
-    NewCI->setCallingConv(CI->getCallingConv());
-    //  Handle any uses of the old CallInst.
-    if (!CI->use_empty())
-      //  Replace all uses of the old call with the new cast which has the 
-      //  correct type.
-      CI->replaceAllUsesWith(NewCI);
-    
-    //  Clean up the old call now that it has been completely upgraded.
-    CI->eraseFromParent();
-    break;
-  }
   }
 }