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//===-- PPC.h - Top-level interface for PowerPC Target ----------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains the entry points for global functions defined in the LLVM
// PowerPC back-end.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_POWERPC_PPC_H
#define LLVM_LIB_TARGET_POWERPC_PPC_H
#include "llvm/Support/CodeGen.h"
// GCC #defines PPC on Linux but we use it as our namespace name
#undef PPC
namespace llvm {
class PPCRegisterBankInfo;
class PPCSubtarget;
class PPCTargetMachine;
class PassRegistry;
class FunctionPass;
class InstructionSelector;
class MachineInstr;
class MachineOperand;
class AsmPrinter;
class MCInst;
class MCOperand;
class ModulePass;
#ifndef NDEBUG
FunctionPass *createPPCCTRLoopsVerify();
#endif
FunctionPass *createPPCLoopInstrFormPrepPass(PPCTargetMachine &TM);
FunctionPass *createPPCTOCRegDepsPass();
FunctionPass *createPPCEarlyReturnPass();
FunctionPass *createPPCVSXCopyPass();
FunctionPass *createPPCVSXFMAMutatePass();
FunctionPass *createPPCVSXSwapRemovalPass();
FunctionPass *createPPCReduceCRLogicalsPass();
FunctionPass *createPPCMIPeepholePass();
FunctionPass *createPPCBranchSelectionPass();
FunctionPass *createPPCBranchCoalescingPass();
FunctionPass *createPPCISelDag(PPCTargetMachine &TM, CodeGenOptLevel OL);
FunctionPass *createPPCTLSDynamicCallPass();
FunctionPass *createPPCBoolRetToIntPass();
FunctionPass *createPPCExpandISELPass();
FunctionPass *createPPCPreEmitPeepholePass();
FunctionPass *createPPCExpandAtomicPseudoPass();
FunctionPass *createPPCCTRLoopsPass();
ModulePass *createPPCMergeStringPoolPass();
void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
AsmPrinter &AP);
bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO,
MCOperand &OutMO, AsmPrinter &AP);
#ifndef NDEBUG
void initializePPCCTRLoopsVerifyPass(PassRegistry&);
#endif
void initializePPCLoopInstrFormPrepPass(PassRegistry&);
void initializePPCTOCRegDepsPass(PassRegistry&);
void initializePPCEarlyReturnPass(PassRegistry&);
void initializePPCVSXCopyPass(PassRegistry&);
void initializePPCVSXFMAMutatePass(PassRegistry&);
void initializePPCVSXSwapRemovalPass(PassRegistry&);
void initializePPCReduceCRLogicalsPass(PassRegistry&);
void initializePPCBSelPass(PassRegistry&);
void initializePPCBranchCoalescingPass(PassRegistry&);
void initializePPCBoolRetToIntPass(PassRegistry&);
void initializePPCExpandISELPass(PassRegistry &);
void initializePPCPreEmitPeepholePass(PassRegistry &);
void initializePPCTLSDynamicCallPass(PassRegistry &);
void initializePPCMIPeepholePass(PassRegistry&);
void initializePPCExpandAtomicPseudoPass(PassRegistry &);
void initializePPCCTRLoopsPass(PassRegistry &);
void initializePPCDAGToDAGISelLegacyPass(PassRegistry &);
void initializePPCMergeStringPoolPass(PassRegistry &);
extern char &PPCVSXFMAMutateID;
ModulePass *createPPCLowerMASSVEntriesPass();
void initializePPCLowerMASSVEntriesPass(PassRegistry &);
extern char &PPCLowerMASSVEntriesID;
ModulePass *createPPCGenScalarMASSEntriesPass();
void initializePPCGenScalarMASSEntriesPass(PassRegistry &);
extern char &PPCGenScalarMASSEntriesID;
InstructionSelector *
createPPCInstructionSelector(const PPCTargetMachine &, const PPCSubtarget &,
const PPCRegisterBankInfo &);
namespace PPCII {
/// Target Operand Flag enum.
enum TOF {
//===------------------------------------------------------------------===//
// PPC Specific MachineOperand flags.
MO_NO_FLAG,
/// On PPC, the 12 bits are not enough for all target operand flags.
/// Treat all PPC target flags as direct flags. To define new flag that is
/// combination of other flags, add new enum entry instead of combining
/// existing flags. See example MO_GOT_TPREL_PCREL_FLAG.
/// On a symbol operand "FOO", this indicates that the reference is actually
/// to "FOO@plt". This is used for calls and jumps to external functions
/// and for PIC calls on 32-bit ELF systems.
MO_PLT,
/// MO_PIC_FLAG - If this bit is set, the symbol reference is relative to
/// the function's picbase, e.g. lo16(symbol-picbase).
MO_PIC_FLAG,
/// MO_PCREL_FLAG - If this bit is set, the symbol reference is relative to
/// the current instruction address(pc), e.g., var@pcrel. Fixup is VK_PCREL.
MO_PCREL_FLAG,
/// MO_GOT_FLAG - If this bit is set the symbol reference is to be computed
/// via the GOT. For example when combined with the MO_PCREL_FLAG it should
/// produce the relocation @got@pcrel. Fixup is VK_PPC_GOT_PCREL.
MO_GOT_FLAG,
/// MO_PCREL_OPT_FLAG - If this bit is set the operand is part of a
/// PC Relative linker optimization.
MO_PCREL_OPT_FLAG,
/// MO_TLSGD_FLAG - If this bit is set the symbol reference is relative to
/// TLS General Dynamic model for Linux and the variable offset of TLS
/// General Dynamic model for AIX.
MO_TLSGD_FLAG,
/// MO_TPREL_FLAG - If this bit is set, the symbol reference is relative to
/// the thread pointer and the symbol can be used for the TLS Initial Exec
/// and Local Exec models.
MO_TPREL_FLAG,
/// MO_TLSLDM_FLAG - on AIX the ML relocation type is only valid for a
/// reference to a TOC symbol from the symbol itself, and right now its only
/// user is the symbol "_$TLSML". The symbol name is used to decide that
/// the R_TLSML relocation is expected.
MO_TLSLDM_FLAG,
/// MO_TLSLD_FLAG - If this bit is set the symbol reference is relative to
/// TLS Local Dynamic model.
MO_TLSLD_FLAG,
/// MO_TLSGDM_FLAG - If this bit is set the symbol reference is relative
/// to the region handle of TLS General Dynamic model for AIX.
MO_TLSGDM_FLAG,
/// MO_GOT_TLSGD_PCREL_FLAG - A combintaion of flags, if these bits are set
/// they should produce the relocation @got@tlsgd@pcrel.
/// Fix up is VK_PPC_GOT_TLSGD_PCREL
/// MO_GOT_TLSGD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSGD_FLAG,
MO_GOT_TLSGD_PCREL_FLAG,
/// MO_GOT_TLSLD_PCREL_FLAG - A combintaion of flags, if these bits are set
/// they should produce the relocation @got@tlsld@pcrel.
/// Fix up is VK_PPC_GOT_TLSLD_PCREL
/// MO_GOT_TLSLD_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG | MO_TLSLD_FLAG,
MO_GOT_TLSLD_PCREL_FLAG,
/// MO_GOT_TPREL_PCREL_FLAG - A combintaion of flags, if these bits are set
/// they should produce the relocation @got@tprel@pcrel.
/// Fix up is VK_PPC_GOT_TPREL_PCREL
/// MO_GOT_TPREL_PCREL_FLAG = MO_GOT_FLAG | MO_TPREL_FLAG | MO_PCREL_FLAG,
MO_GOT_TPREL_PCREL_FLAG,
/// MO_LO, MO_HA - lo16(symbol) and ha16(symbol)
MO_LO,
MO_HA,
MO_TPREL_LO,
MO_TPREL_HA,
/// These values identify relocations on immediates folded
/// into memory operations.
MO_DTPREL_LO,
MO_TLSLD_LO,
MO_TOC_LO,
/// Symbol for VK_PPC_TLS fixup attached to an ADD instruction
MO_TLS,
/// MO_PIC_HA_FLAG = MO_PIC_FLAG | MO_HA
MO_PIC_HA_FLAG,
/// MO_PIC_LO_FLAG = MO_PIC_FLAG | MO_LO
MO_PIC_LO_FLAG,
/// MO_TPREL_PCREL_FLAG = MO_PCREL_FLAG | MO_TPREL_FLAG
MO_TPREL_PCREL_FLAG,
/// MO_TPREL_PCREL_FLAG = MO_PCREL_FLAG | MO_TLS
MO_TLS_PCREL_FLAG,
/// MO_GOT_PCREL_FLAG = MO_PCREL_FLAG | MO_GOT_FLAG
MO_GOT_PCREL_FLAG,
};
} // end namespace PPCII
} // end namespace llvm;
#endif
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