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47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
//===-- HexagonSelectionDAGInfo.cpp - Hexagon SelectionDAG Info -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the HexagonSelectionDAGInfo class.
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "hexagon-selectiondag-info"
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#include "HexagonTargetMachine.h"
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using namespace llvm;
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bool llvm::flag_aligned_memcpy;
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HexagonSelectionDAGInfo::HexagonSelectionDAGInfo(const HexagonTargetMachine
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&TM)
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: TargetSelectionDAGInfo(TM) {
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}
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HexagonSelectionDAGInfo::~HexagonSelectionDAGInfo() {
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}
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SDValue
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HexagonSelectionDAGInfo::
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EmitTargetCodeForMemcpy(SelectionDAG &DAG, DebugLoc dl, SDValue Chain,
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SDValue Dst, SDValue Src, SDValue Size, unsigned Align,
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bool isVolatile, bool AlwaysInline,
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MachinePointerInfo DstPtrInfo,
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MachinePointerInfo SrcPtrInfo) const {
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flag_aligned_memcpy = false;
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if ((Align & 0x3) == 0) {
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ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
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if (ConstantSize) {
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uint64_t SizeVal = ConstantSize->getZExtValue();
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if ((SizeVal > 32) && ((SizeVal % 8) == 0))
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flag_aligned_memcpy = true;
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}
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}
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return SDValue();
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}
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