Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp

@@ -1,59 +0,0 @@
-//===-- AArch64SelectionDAGInfo.cpp - AArch64 SelectionDAG Info -----------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the AArch64SelectionDAGInfo class.
-//
-//===----------------------------------------------------------------------===//
-
-#include "AArch64TargetMachine.h"
-using namespace llvm;
-
-#define DEBUG_TYPE "aarch64-selectiondag-info"
-
-SDValue AArch64SelectionDAGInfo::EmitTargetCodeForMemset(
-    SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Dst, SDValue Src,
-    SDValue Size, unsigned Align, bool isVolatile,
-    MachinePointerInfo DstPtrInfo) const {
-  // 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 AArch64Subtarget &STI =
-      DAG.getMachineFunction().getSubtarget<AArch64Subtarget>();
-  const char *bzeroName = (V && V->isNullValue())
-      ? 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 = DAG.getDataLayout().getIntPtrType(*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();
-}
-bool AArch64SelectionDAGInfo::generateFMAsInMachineCombiner(
-    CodeGenOpt::Level OptLevel) const {
-  return OptLevel >= CodeGenOpt::Aggressive;
-}