1 files changed, 1 insertions, 33 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp b/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp
index 893269c1a7ef..677797a6797b 100644
--- a/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp
@@ -91,7 +91,7 @@ SDValue AArch64SelectionDAGInfo::EmitTargetCodeForMemcpy(
 
 SDValue AArch64SelectionDAGInfo::EmitTargetCodeForMemset(
     SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Dst, SDValue Src,
-    SDValue Size, Align Alignment, bool isVolatile,
+    SDValue Size, Align Alignment, bool isVolatile, bool AlwaysInline,
     MachinePointerInfo DstPtrInfo) const {
   const AArch64Subtarget &STI =
       DAG.getMachineFunction().getSubtarget<AArch64Subtarget>();
@@ -100,38 +100,6 @@ SDValue AArch64SelectionDAGInfo::EmitTargetCodeForMemset(
     return EmitMOPS(AArch64ISD::MOPS_MEMSET, DAG, dl, Chain, Dst, Src, Size,
                     Alignment, isVolatile, DstPtrInfo, MachinePointerInfo{});
   }
-
-  // Check to see if there is a specialized entry-point for memory zeroing.
-  ConstantSDNode *V = dyn_cast<ConstantSDNode>(Src);
-  ConstantSDNode *SizeValue = dyn_cast<ConstantSDNode>(Size);
-  const char *bzeroName =
-      (V && V->isZero())
-          ? DAG.getTargetLoweringInfo().getLibcallName(RTLIB::BZERO)
-          : nullptr;
-  // For small size (< 256), it is not beneficial to use bzero
-  // instead of memset.
-  if (bzeroName && (!SizeValue || SizeValue->getZExtValue() > 256)) {
-    const AArch64TargetLowering &TLI = *STI.getTargetLowering();
-
-    EVT IntPtr = TLI.getPointerTy(DAG.getDataLayout());
-    Type *IntPtrTy = Type::getInt8PtrTy(*DAG.getContext());
-    TargetLowering::ArgListTy Args;
-    TargetLowering::ArgListEntry Entry;
-    Entry.Node = Dst;
-    Entry.Ty = IntPtrTy;
-    Args.push_back(Entry);
-    Entry.Node = Size;
-    Args.push_back(Entry);
-    TargetLowering::CallLoweringInfo CLI(DAG);
-    CLI.setDebugLoc(dl)
-        .setChain(Chain)
-        .setLibCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()),
-                      DAG.getExternalSymbol(bzeroName, IntPtr),
-                      std::move(Args))
-        .setDiscardResult();
-    std::pair<SDValue, SDValue> CallResult = TLI.LowerCallTo(CLI);
-    return CallResult.second;
-  }
   return SDValue();
 }