forked from OSchip/llvm-project
58 lines
2.2 KiB
C++
58 lines
2.2 KiB
C++
//===-- M68k.h - Top-level interface for M68k representation ----*- 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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/// \file
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/// This file contains the entry points for global functions defined in the
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/// M68k target library, as used by the LLVM JIT.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_M68K_M68K_H
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#define LLVM_LIB_TARGET_M68K_M68K_H
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namespace llvm {
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class FunctionPass;
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class InstructionSelector;
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class M68kRegisterBankInfo;
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class M68kSubtarget;
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class M68kTargetMachine;
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/// This pass converts a legalized DAG into a M68k-specific DAG, ready for
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/// instruction scheduling.
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FunctionPass *createM68kISelDag(M68kTargetMachine &TM);
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/// Return a Machine IR pass that expands M68k-specific pseudo
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/// instructions into a sequence of actual instructions. This pass
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/// must run after prologue/epilogue insertion and before lowering
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/// the MachineInstr to MC.
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FunctionPass *createM68kExpandPseudoPass();
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/// This pass initializes a global base register for PIC on M68k.
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FunctionPass *createM68kGlobalBaseRegPass();
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/// Finds sequential MOVEM instruction and collapse them into a single one. This
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/// pass has to be run after all pseudo expansions and prologue/epilogue
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/// emission so that all possible MOVEM are already in place.
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FunctionPass *createM68kCollapseMOVEMPass();
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/// Finds MOVE instructions before any conditioanl branch instruction and
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/// replaces them with MOVEM instruction. Motorola's MOVEs do trash(V,C) flags
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/// register which prevents branch from taking the correct route. This pass
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/// has to be run after all pseudo expansions and prologue/epilogue emission
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/// so that all possible MOVEs are present.
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FunctionPass *createM68kConvertMOVToMOVMPass();
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InstructionSelector *
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createM68kInstructionSelector(const M68kTargetMachine &, const M68kSubtarget &,
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const M68kRegisterBankInfo &);
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} // namespace llvm
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#endif // LLVM_LIB_TARGET_M68K_M68K_H
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