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 #define DEBUG_TYPE "hexagon-selectiondag-info"
15 #include "HexagonTargetMachine.h"
18 bool llvm::flag_aligned_memcpy;
20 HexagonSelectionDAGInfo::HexagonSelectionDAGInfo(const HexagonTargetMachine
22 : TargetSelectionDAGInfo(TM) {
25 HexagonSelectionDAGInfo::~HexagonSelectionDAGInfo() {
29 HexagonSelectionDAGInfo::
30 EmitTargetCodeForMemcpy(SelectionDAG &DAG, DebugLoc dl, SDValue Chain,
31 SDValue Dst, SDValue Src, SDValue Size, unsigned Align,
32 bool isVolatile, bool AlwaysInline,
33 MachinePointerInfo DstPtrInfo,
34 MachinePointerInfo SrcPtrInfo) const {
35 flag_aligned_memcpy = false;
36 if ((Align & 0x3) == 0) {
37 ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
39 uint64_t SizeVal = ConstantSize->getZExtValue();
40 if ((SizeVal > 32) && ((SizeVal % 8) == 0))
41 flag_aligned_memcpy = true;