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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
69 lines
2.8 KiB
C++
69 lines
2.8 KiB
C++
//===-- ARMSelectionDAGInfo.h - ARM SelectionDAG Info -----------*- C++ -*-===//
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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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// This file defines the ARM subclass for SelectionDAGTargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_ARM_ARMSELECTIONDAGINFO_H
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#define LLVM_LIB_TARGET_ARM_ARMSELECTIONDAGINFO_H
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#include "MCTargetDesc/ARMAddressingModes.h"
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#include "llvm/CodeGen/RuntimeLibcalls.h"
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#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
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namespace llvm {
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namespace ARM_AM {
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static inline ShiftOpc getShiftOpcForNode(unsigned Opcode) {
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switch (Opcode) {
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default: return ARM_AM::no_shift;
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case ISD::SHL: return ARM_AM::lsl;
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case ISD::SRL: return ARM_AM::lsr;
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case ISD::SRA: return ARM_AM::asr;
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case ISD::ROTR: return ARM_AM::ror;
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//case ISD::ROTL: // Only if imm -> turn into ROTR.
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// Can't handle RRX here, because it would require folding a flag into
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// the addressing mode. :( This causes us to miss certain things.
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//case ARMISD::RRX: return ARM_AM::rrx;
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}
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}
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} // end namespace ARM_AM
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class ARMSelectionDAGInfo : public SelectionDAGTargetInfo {
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public:
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SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG, const SDLoc &dl,
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SDValue Chain, SDValue Dst, SDValue Src,
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SDValue Size, unsigned Align, bool isVolatile,
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bool AlwaysInline,
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MachinePointerInfo DstPtrInfo,
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MachinePointerInfo SrcPtrInfo) const override;
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SDValue
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EmitTargetCodeForMemmove(SelectionDAG &DAG, const SDLoc &dl, SDValue Chain,
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SDValue Dst, SDValue Src, SDValue Size,
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unsigned Align, bool isVolatile,
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MachinePointerInfo DstPtrInfo,
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MachinePointerInfo SrcPtrInfo) const override;
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// Adjust parameters for memset, see RTABI section 4.3.4
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SDValue EmitTargetCodeForMemset(SelectionDAG &DAG, const SDLoc &dl,
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SDValue Chain, SDValue Op1, SDValue Op2,
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SDValue Op3, unsigned Align, bool isVolatile,
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MachinePointerInfo DstPtrInfo) const override;
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SDValue EmitSpecializedLibcall(SelectionDAG &DAG, const SDLoc &dl,
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SDValue Chain, SDValue Dst, SDValue Src,
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SDValue Size, unsigned Align,
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RTLIB::Libcall LC) const;
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};
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}
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#endif
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