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850662dafb
This covers both the existing memory functions as well as the new bulk memory proposal. Added new test files since changes where also required in the inputs. Also removes unused init/drop intrinsics rather than trying to make them work for 64-bit. Differential Revision: https://reviews.llvm.org/D82821
60 lines
2.6 KiB
C++
60 lines
2.6 KiB
C++
//===-- WebAssemblySelectionDAGInfo.cpp - WebAssembly SelectionDAG Info ---===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file implements the WebAssemblySelectionDAGInfo class.
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///
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//===----------------------------------------------------------------------===//
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#include "WebAssemblyTargetMachine.h"
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using namespace llvm;
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#define DEBUG_TYPE "wasm-selectiondag-info"
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WebAssemblySelectionDAGInfo::~WebAssemblySelectionDAGInfo() = default; // anchor
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SDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemcpy(
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SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Src,
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SDValue Size, Align Alignment, bool IsVolatile, bool AlwaysInline,
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MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const {
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auto &ST = DAG.getMachineFunction().getSubtarget<WebAssemblySubtarget>();
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if (!ST.hasBulkMemory())
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return SDValue();
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SDValue MemIdx = DAG.getConstant(0, DL, MVT::i32);
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auto LenMVT = ST.hasAddr64() ? MVT::i64 : MVT::i32;
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return DAG.getNode(WebAssemblyISD::MEMORY_COPY, DL, MVT::Other,
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{Chain, MemIdx, MemIdx, Dst, Src,
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DAG.getZExtOrTrunc(Size, DL, LenMVT)});
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}
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SDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemmove(
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SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Op1, SDValue Op2,
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SDValue Op3, Align Alignment, bool IsVolatile,
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MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const {
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return EmitTargetCodeForMemcpy(DAG, DL, Chain, Op1, Op2, Op3,
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Alignment, IsVolatile, false,
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DstPtrInfo, SrcPtrInfo);
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}
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SDValue WebAssemblySelectionDAGInfo::EmitTargetCodeForMemset(
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SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Val,
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SDValue Size, Align Alignment, bool IsVolatile,
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MachinePointerInfo DstPtrInfo) const {
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auto &ST = DAG.getMachineFunction().getSubtarget<WebAssemblySubtarget>();
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if (!ST.hasBulkMemory())
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return SDValue();
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SDValue MemIdx = DAG.getConstant(0, DL, MVT::i32);
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auto LenMVT = ST.hasAddr64() ? MVT::i64 : MVT::i32;
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// Only low byte matters for val argument, so anyext the i8
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return DAG.getNode(WebAssemblyISD::MEMORY_FILL, DL, MVT::Other, Chain, MemIdx,
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Dst, DAG.getAnyExtOrTrunc(Val, DL, MVT::i32),
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DAG.getZExtOrTrunc(Size, DL, LenMVT));
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}
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