1 //===-- HexagonSelectionDAGInfo.cpp - Hexagon SelectionDAG Info -----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the HexagonSelectionDAGInfo class.
12 //===----------------------------------------------------------------------===//
14 #include "HexagonTargetMachine.h"
17 #define DEBUG_TYPE "hexagon-selectiondag-info"
19 bool llvm::flag_aligned_memcpy;
22 HexagonSelectionDAGInfo::
23 EmitTargetCodeForMemcpy(SelectionDAG &DAG, SDLoc dl, SDValue Chain,
24 SDValue Dst, SDValue Src, SDValue Size, unsigned Align,
25 bool isVolatile, bool AlwaysInline,
26 MachinePointerInfo DstPtrInfo,
27 MachinePointerInfo SrcPtrInfo) const {
28 flag_aligned_memcpy = false;
29 if ((Align & 0x3) == 0) {
30 ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
32 uint64_t SizeVal = ConstantSize->getZExtValue();
33 if ((SizeVal > 32) && ((SizeVal % 8) == 0))
34 flag_aligned_memcpy = true;