remove some #ifdef'd out code, which should properly be in the dag combiner anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25941 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index da84b38634e92db40d9fe0016ef35392799f4dd0..88cc853ebeae0d8b5461a239922b4739c576184c 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1504,36 +1504,6 @@ void SelectionDAGLowering::visitFrameReturnAddress(CallInst &I, bool isFrame) {
 }
 
 void SelectionDAGLowering::visitMemIntrinsic(CallInst &I, unsigned Op) {
-#if 0
-  // If the size of the cpy/move/set is constant (known)
-  if (ConstantUInt* op3 = dyn_cast<ConstantUInt>(I.getOperand(3))) {
-    uint64_t size = op3->getValue();
-    switch (Op) {
-      case ISD::MEMSET: 
-        if (size <= TLI.getMaxStoresPerMemSet()) {
-          if (ConstantUInt* op4 = dyn_cast<ConstantUInt>(I.getOperand(4))) {
-        uint64_t TySize = TLI.getTargetData().getTypeSize(Ty);
-            uint64_t align = op4.getValue();
-            while (size > align) {
-              size -=align;
-            }
-  Value *SrcV = I.getOperand(0);
-  SDOperand Src = getValue(SrcV);
-  SDOperand Ptr = getValue(I.getOperand(1));
-  DAG.setRoot(DAG.getNode(ISD::STORE, MVT::Other, getRoot(), Src, Ptr,
-                          DAG.getSrcValue(I.getOperand(1))));
-          }
-          break;
-        }
-        break; // don't do this optimization, use a normal memset
-      case ISD::MEMMOVE: 
-      case ISD::MEMCPY:
-        break; // FIXME: not implemented yet
-    }
-  }
-#endif
-
-  // Non-optimized version
   std::vector<SDOperand> Ops;
   Ops.push_back(getRoot());
   Ops.push_back(getValue(I.getOperand(1)));