b771c4a842
Add initial support for PC Relative addressing for global values that require GOT indirect addressing. This patch adds PCRelative support for global addresses that may not be known at link time and may require access through the GOT. Differential Revision: https://reviews.llvm.org/D76064
134 lines
4.7 KiB
C++
134 lines
4.7 KiB
C++
//===-- 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 PPCTargetMachine;
|
|
class PassRegistry;
|
|
class FunctionPass;
|
|
class MachineInstr;
|
|
class MachineOperand;
|
|
class AsmPrinter;
|
|
class MCInst;
|
|
class MCOperand;
|
|
class ModulePass;
|
|
|
|
FunctionPass *createPPCCTRLoops();
|
|
#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 *createPPCQPXLoadSplatPass();
|
|
FunctionPass *createPPCISelDag(PPCTargetMachine &TM, CodeGenOpt::Level OL);
|
|
FunctionPass *createPPCTLSDynamicCallPass();
|
|
FunctionPass *createPPCBoolRetToIntPass();
|
|
FunctionPass *createPPCExpandISELPass();
|
|
FunctionPass *createPPCPreEmitPeepholePass();
|
|
void LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
|
|
AsmPrinter &AP);
|
|
bool LowerPPCMachineOperandToMCOperand(const MachineOperand &MO,
|
|
MCOperand &OutMO, AsmPrinter &AP);
|
|
|
|
void initializePPCCTRLoopsPass(PassRegistry&);
|
|
#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 initializePPCQPXLoadSplatPass(PassRegistry&);
|
|
void initializePPCBoolRetToIntPass(PassRegistry&);
|
|
void initializePPCExpandISELPass(PassRegistry &);
|
|
void initializePPCPreEmitPeepholePass(PassRegistry &);
|
|
void initializePPCTLSDynamicCallPass(PassRegistry &);
|
|
void initializePPCMIPeepholePass(PassRegistry&);
|
|
|
|
extern char &PPCVSXFMAMutateID;
|
|
|
|
ModulePass *createPPCLowerMASSVEntriesPass();
|
|
void initializePPCLowerMASSVEntriesPass(PassRegistry &);
|
|
extern char &PPCLowerMASSVEntriesID;
|
|
|
|
namespace PPCII {
|
|
|
|
/// Target Operand Flag enum.
|
|
enum TOF {
|
|
//===------------------------------------------------------------------===//
|
|
// PPC Specific MachineOperand flags.
|
|
MO_NO_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 = 1,
|
|
|
|
/// 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 = 2,
|
|
|
|
/// 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 = 4,
|
|
|
|
/// 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 = 32,
|
|
|
|
/// The next are not flags but distinct values.
|
|
MO_ACCESS_MASK = 0xf00,
|
|
|
|
/// MO_LO, MO_HA - lo16(symbol) and ha16(symbol)
|
|
MO_LO = 1 << 8,
|
|
MO_HA = 2 << 8,
|
|
|
|
MO_TPREL_LO = 4 << 8,
|
|
MO_TPREL_HA = 3 << 8,
|
|
|
|
/// These values identify relocations on immediates folded
|
|
/// into memory operations.
|
|
MO_DTPREL_LO = 5 << 8,
|
|
MO_TLSLD_LO = 6 << 8,
|
|
MO_TOC_LO = 7 << 8,
|
|
|
|
// Symbol for VK_PPC_TLS fixup attached to an ADD instruction
|
|
MO_TLS = 8 << 8
|
|
};
|
|
} // end namespace PPCII
|
|
|
|
} // end namespace llvm;
|
|
|
|
#endif
|