1285163Sdim//===-- WebAssemblySelectionDAGInfo.cpp - WebAssembly SelectionDAG Info ---===// 2285163Sdim// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6285163Sdim// 7285163Sdim//===----------------------------------------------------------------------===// 8285163Sdim/// 9285163Sdim/// \file 10341825Sdim/// This file implements the WebAssemblySelectionDAGInfo class. 11285163Sdim/// 12285163Sdim//===----------------------------------------------------------------------===// 13285163Sdim 14285163Sdim#include "WebAssemblyTargetMachine.h" 15285163Sdimusing namespace llvm; 16285163Sdim 17285163Sdim#define DEBUG_TYPE "wasm-selectiondag-info" 18285163Sdim 19353358SdimWebAssemblySelectionDAGInfo::~WebAssemblySelectionDAGInfo() = default; // anchor 20353358Sdim 21353358SdimSDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemcpy( 22353358Sdim SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Src, 23353358Sdim SDValue Size, unsigned Align, bool IsVolatile, bool AlwaysInline, 24353358Sdim MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const { 25353358Sdim if (!DAG.getMachineFunction() 26353358Sdim .getSubtarget<WebAssemblySubtarget>() 27353358Sdim .hasBulkMemory()) 28353358Sdim return SDValue(); 29353358Sdim 30353358Sdim SDValue MemIdx = DAG.getConstant(0, DL, MVT::i32); 31353358Sdim return DAG.getNode(WebAssemblyISD::MEMORY_COPY, DL, MVT::Other, 32353358Sdim {Chain, MemIdx, MemIdx, Dst, Src, 33353358Sdim DAG.getZExtOrTrunc(Size, DL, MVT::i32)}); 34353358Sdim} 35353358Sdim 36353358SdimSDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemmove( 37353358Sdim SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Op1, SDValue Op2, 38353358Sdim SDValue Op3, unsigned Align, bool IsVolatile, 39353358Sdim MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const { 40353358Sdim return EmitTargetCodeForMemcpy(DAG, DL, Chain, Op1, Op2, Op3, Align, 41353358Sdim IsVolatile, false, DstPtrInfo, 42353358Sdim SrcPtrInfo); 43353358Sdim} 44353358Sdim 45353358SdimSDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemset( 46353358Sdim SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Val, 47353358Sdim SDValue Size, unsigned Align, bool IsVolatile, 48353358Sdim MachinePointerInfo DstPtrInfo) const { 49353358Sdim if (!DAG.getMachineFunction() 50353358Sdim .getSubtarget<WebAssemblySubtarget>() 51353358Sdim .hasBulkMemory()) 52353358Sdim return SDValue(); 53353358Sdim 54353358Sdim SDValue MemIdx = DAG.getConstant(0, DL, MVT::i32); 55353358Sdim // Only low byte matters for val argument, so anyext the i8 56353358Sdim return DAG.getNode(WebAssemblyISD::MEMORY_FILL, DL, MVT::Other, Chain, MemIdx, 57353358Sdim Dst, DAG.getAnyExtOrTrunc(Val, DL, MVT::i32), 58353358Sdim DAG.getZExtOrTrunc(Size, DL, MVT::i32)); 59353358Sdim} 60