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265 lines
9.5 KiB
C++
265 lines
9.5 KiB
C++
//===-- LoongArchMCAsmInfo.cpp - LoongArch Asm properties ------*- 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 contains the declarations of the LoongArchMCAsmInfo properties.
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//
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//===----------------------------------------------------------------------===//
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#include "LoongArchMCAsmInfo.h"
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#include "llvm/BinaryFormat/Dwarf.h"
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#include "llvm/BinaryFormat/ELF.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/TargetParser/Triple.h"
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using namespace llvm;
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const LoongArchMCExpr *LoongArchMCExpr::create(const MCExpr *Expr, uint16_t S,
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MCContext &Ctx, bool Hint) {
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return new (Ctx) LoongArchMCExpr(Expr, S, Hint);
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}
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static StringRef getLoongArchSpecifierName(uint16_t S) {
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switch (S) {
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default:
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llvm_unreachable("Invalid ELF symbol kind");
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case ELF::R_LARCH_B16:
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return "b16";
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case ELF::R_LARCH_B21:
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return "b21";
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case ELF::R_LARCH_MARK_LA:
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case ELF::R_LARCH_ABS_HI20:
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return "abs_hi20";
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case ELF::R_LARCH_ABS_LO12:
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return "abs_lo12";
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case ELF::R_LARCH_ABS64_LO20:
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return "abs64_lo20";
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case ELF::R_LARCH_ABS64_HI12:
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return "abs64_hi12";
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case ELF::R_LARCH_PCALA_HI20:
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return "pc_hi20";
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case ELF::R_LARCH_PCALA_LO12:
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return "pc_lo12";
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case ELF::R_LARCH_PCALA64_LO20:
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return "pc64_lo20";
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case ELF::R_LARCH_PCALA64_HI12:
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return "pc64_hi12";
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case ELF::R_LARCH_GOT_PC_HI20:
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return "got_pc_hi20";
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case ELF::R_LARCH_GOT_PC_LO12:
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return "got_pc_lo12";
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case ELF::R_LARCH_GOT64_PC_LO20:
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return "got64_pc_lo20";
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case ELF::R_LARCH_GOT64_PC_HI12:
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return "got64_pc_hi12";
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case ELF::R_LARCH_GOT_HI20:
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return "got_hi20";
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case ELF::R_LARCH_GOT_LO12:
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return "got_lo12";
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case ELF::R_LARCH_GOT64_LO20:
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return "got64_lo20";
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case ELF::R_LARCH_GOT64_HI12:
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return "got64_hi12";
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case ELF::R_LARCH_TLS_LE_HI20:
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return "le_hi20";
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case ELF::R_LARCH_TLS_LE_LO12:
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return "le_lo12";
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case ELF::R_LARCH_TLS_LE64_LO20:
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return "le64_lo20";
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case ELF::R_LARCH_TLS_LE64_HI12:
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return "le64_hi12";
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case ELF::R_LARCH_TLS_IE_PC_HI20:
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return "ie_pc_hi20";
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case ELF::R_LARCH_TLS_IE_PC_LO12:
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return "ie_pc_lo12";
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case ELF::R_LARCH_TLS_IE64_PC_LO20:
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return "ie64_pc_lo20";
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case ELF::R_LARCH_TLS_IE64_PC_HI12:
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return "ie64_pc_hi12";
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case ELF::R_LARCH_TLS_IE_HI20:
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return "ie_hi20";
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case ELF::R_LARCH_TLS_IE_LO12:
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return "ie_lo12";
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case ELF::R_LARCH_TLS_IE64_LO20:
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return "ie64_lo20";
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case ELF::R_LARCH_TLS_IE64_HI12:
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return "ie64_hi12";
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case ELF::R_LARCH_TLS_LD_PC_HI20:
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return "ld_pc_hi20";
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case ELF::R_LARCH_TLS_LD_HI20:
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return "ld_hi20";
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case ELF::R_LARCH_TLS_GD_PC_HI20:
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return "gd_pc_hi20";
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case ELF::R_LARCH_TLS_GD_HI20:
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return "gd_hi20";
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case ELF::R_LARCH_CALL30:
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return "call30";
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case ELF::R_LARCH_CALL36:
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return "call36";
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case ELF::R_LARCH_TLS_DESC_PC_HI20:
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return "desc_pc_hi20";
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case ELF::R_LARCH_TLS_DESC_PC_LO12:
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return "desc_pc_lo12";
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case ELF::R_LARCH_TLS_DESC64_PC_LO20:
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return "desc64_pc_lo20";
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case ELF::R_LARCH_TLS_DESC64_PC_HI12:
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return "desc64_pc_hi12";
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case ELF::R_LARCH_TLS_DESC_HI20:
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return "desc_hi20";
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case ELF::R_LARCH_TLS_DESC_LO12:
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return "desc_lo12";
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case ELF::R_LARCH_TLS_DESC64_LO20:
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return "desc64_lo20";
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case ELF::R_LARCH_TLS_DESC64_HI12:
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return "desc64_hi12";
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case ELF::R_LARCH_TLS_DESC_LD:
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return "desc_ld";
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case ELF::R_LARCH_TLS_DESC_CALL:
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return "desc_call";
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case ELF::R_LARCH_TLS_LE_HI20_R:
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return "le_hi20_r";
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case ELF::R_LARCH_TLS_LE_ADD_R:
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return "le_add_r";
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case ELF::R_LARCH_TLS_LE_LO12_R:
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return "le_lo12_r";
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case ELF::R_LARCH_PCREL20_S2:
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return "pcrel_20";
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case ELF::R_LARCH_TLS_LD_PCREL20_S2:
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return "ld_pcrel_20";
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case ELF::R_LARCH_TLS_GD_PCREL20_S2:
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return "gd_pcrel_20";
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case ELF::R_LARCH_TLS_DESC_PCREL20_S2:
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return "desc_pcrel_20";
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case ELF::R_LARCH_PCADD_HI20:
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return "pcadd_hi20";
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case ELF::R_LARCH_PCADD_LO12:
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return "pcadd_lo12";
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case ELF::R_LARCH_GOT_PCADD_HI20:
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return "got_pcadd_hi20";
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case ELF::R_LARCH_GOT_PCADD_LO12:
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return "got_pcadd_lo12";
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case ELF::R_LARCH_TLS_IE_PCADD_HI20:
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return "ie_pcadd_hi20";
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case ELF::R_LARCH_TLS_IE_PCADD_LO12:
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return "ie_pcadd_lo12";
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case ELF::R_LARCH_TLS_LD_PCADD_HI20:
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return "ld_pcadd_hi20";
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case ELF::R_LARCH_TLS_LD_PCADD_LO12:
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return "ld_pcadd_lo12";
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case ELF::R_LARCH_TLS_GD_PCADD_HI20:
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return "gd_pcadd_hi20";
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case ELF::R_LARCH_TLS_GD_PCADD_LO12:
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return "gd_pcadd_lo12";
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case ELF::R_LARCH_TLS_DESC_PCADD_HI20:
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return "desc_pcadd_hi20";
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case ELF::R_LARCH_TLS_DESC_PCADD_LO12:
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return "desc_pcadd_lo12";
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}
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}
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LoongArchMCExpr::Specifier LoongArch::parseSpecifier(StringRef name) {
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return StringSwitch<LoongArchMCExpr::Specifier>(name)
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.Case("plt", ELF::R_LARCH_B26)
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.Case("b16", ELF::R_LARCH_B16)
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.Case("b21", ELF::R_LARCH_B21)
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.Case("b26", ELF::R_LARCH_B26)
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.Case("abs_hi20", ELF::R_LARCH_ABS_HI20)
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.Case("abs_lo12", ELF::R_LARCH_ABS_LO12)
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.Case("abs64_lo20", ELF::R_LARCH_ABS64_LO20)
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.Case("abs64_hi12", ELF::R_LARCH_ABS64_HI12)
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.Case("pc_hi20", ELF::R_LARCH_PCALA_HI20)
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.Case("pc_lo12", ELF::R_LARCH_PCALA_LO12)
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.Case("pc64_lo20", ELF::R_LARCH_PCALA64_LO20)
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.Case("pc64_hi12", ELF::R_LARCH_PCALA64_HI12)
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.Case("got_pc_hi20", ELF::R_LARCH_GOT_PC_HI20)
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.Case("got_pc_lo12", ELF::R_LARCH_GOT_PC_LO12)
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.Case("got64_pc_lo20", ELF::R_LARCH_GOT64_PC_LO20)
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.Case("got64_pc_hi12", ELF::R_LARCH_GOT64_PC_HI12)
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.Case("got_hi20", ELF::R_LARCH_GOT_HI20)
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.Case("got_lo12", ELF::R_LARCH_GOT_LO12)
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.Case("got64_lo20", ELF::R_LARCH_GOT64_LO20)
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.Case("got64_hi12", ELF::R_LARCH_GOT64_HI12)
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.Case("le_hi20", ELF::R_LARCH_TLS_LE_HI20)
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.Case("le_lo12", ELF::R_LARCH_TLS_LE_LO12)
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.Case("le64_lo20", ELF::R_LARCH_TLS_LE64_LO20)
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.Case("le64_hi12", ELF::R_LARCH_TLS_LE64_HI12)
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.Case("ie_pc_hi20", ELF::R_LARCH_TLS_IE_PC_HI20)
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.Case("ie_pc_lo12", ELF::R_LARCH_TLS_IE_PC_LO12)
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.Case("ie64_pc_lo20", ELF::R_LARCH_TLS_IE64_PC_LO20)
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.Case("ie64_pc_hi12", ELF::R_LARCH_TLS_IE64_PC_HI12)
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.Case("ie_hi20", ELF::R_LARCH_TLS_IE_HI20)
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.Case("ie_lo12", ELF::R_LARCH_TLS_IE_LO12)
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.Case("ie64_lo20", ELF::R_LARCH_TLS_IE64_LO20)
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.Case("ie64_hi12", ELF::R_LARCH_TLS_IE64_HI12)
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.Case("ld_pc_hi20", ELF::R_LARCH_TLS_LD_PC_HI20)
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.Case("ld_hi20", ELF::R_LARCH_TLS_LD_HI20)
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.Case("gd_pc_hi20", ELF::R_LARCH_TLS_GD_PC_HI20)
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.Case("gd_hi20", ELF::R_LARCH_TLS_GD_HI20)
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.Case("call30", ELF::R_LARCH_CALL30)
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.Case("call36", ELF::R_LARCH_CALL36)
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.Case("desc_pc_hi20", ELF::R_LARCH_TLS_DESC_PC_HI20)
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.Case("desc_pc_lo12", ELF::R_LARCH_TLS_DESC_PC_LO12)
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.Case("desc64_pc_lo20", ELF::R_LARCH_TLS_DESC64_PC_LO20)
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.Case("desc64_pc_hi12", ELF::R_LARCH_TLS_DESC64_PC_HI12)
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.Case("desc_hi20", ELF::R_LARCH_TLS_DESC_HI20)
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.Case("desc_lo12", ELF::R_LARCH_TLS_DESC_LO12)
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.Case("desc64_lo20", ELF::R_LARCH_TLS_DESC64_LO20)
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.Case("desc64_hi12", ELF::R_LARCH_TLS_DESC64_HI12)
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.Case("desc_ld", ELF::R_LARCH_TLS_DESC_LD)
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.Case("desc_call", ELF::R_LARCH_TLS_DESC_CALL)
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.Case("le_hi20_r", ELF::R_LARCH_TLS_LE_HI20_R)
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.Case("le_add_r", ELF::R_LARCH_TLS_LE_ADD_R)
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.Case("le_lo12_r", ELF::R_LARCH_TLS_LE_LO12_R)
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.Case("pcrel_20", ELF::R_LARCH_PCREL20_S2)
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.Case("ld_pcrel_20", ELF::R_LARCH_TLS_LD_PCREL20_S2)
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.Case("gd_pcrel_20", ELF::R_LARCH_TLS_GD_PCREL20_S2)
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.Case("desc_pcrel_20", ELF::R_LARCH_TLS_DESC_PCREL20_S2)
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.Case("pcadd_hi20", ELF::R_LARCH_PCADD_HI20)
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.Case("pcadd_lo12", ELF::R_LARCH_PCADD_LO12)
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.Case("got_pcadd_hi20", ELF::R_LARCH_GOT_PCADD_HI20)
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.Case("got_pcadd_lo12", ELF::R_LARCH_GOT_PCADD_LO12)
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.Case("ie_pcadd_hi20", ELF::R_LARCH_TLS_IE_PCADD_HI20)
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.Case("ie_pcadd_lo12", ELF::R_LARCH_TLS_IE_PCADD_LO12)
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.Case("ld_pcadd_hi20", ELF::R_LARCH_TLS_LD_PCADD_HI20)
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.Case("ld_pcadd_lo12", ELF::R_LARCH_TLS_LD_PCADD_LO12)
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.Case("gd_pcadd_hi20", ELF::R_LARCH_TLS_GD_PCADD_HI20)
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.Case("gd_pcadd_lo12", ELF::R_LARCH_TLS_GD_PCADD_LO12)
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.Case("desc_pcadd_hi20", ELF::R_LARCH_TLS_DESC_PCADD_HI20)
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.Case("desc_pcadd_lo12", ELF::R_LARCH_TLS_DESC_PCADD_LO12)
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.Default(0);
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}
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void LoongArchMCAsmInfo::anchor() {}
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LoongArchMCAsmInfo::LoongArchMCAsmInfo(const Triple &TT,
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const MCTargetOptions &Options)
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: MCAsmInfoELF(Options) {
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CodePointerSize = CalleeSaveStackSlotSize = TT.isArch64Bit() ? 8 : 4;
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AlignmentIsInBytes = false;
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Data8bitsDirective = "\t.byte\t";
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Data16bitsDirective = "\t.half\t";
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Data32bitsDirective = "\t.word\t";
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Data64bitsDirective = "\t.dword\t";
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ZeroDirective = "\t.space\t";
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CommentString = "#";
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SupportsDebugInformation = true;
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DwarfRegNumForCFI = true;
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ExceptionsType = ExceptionHandling::DwarfCFI;
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}
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void LoongArchMCAsmInfo::printSpecifierExpr(raw_ostream &OS,
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const MCSpecifierExpr &Expr) const {
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auto S = Expr.getSpecifier();
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bool HasSpecifier = S != 0 && S != ELF::R_LARCH_B26;
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if (HasSpecifier)
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OS << '%' << getLoongArchSpecifierName(S) << '(';
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printExpr(OS, *Expr.getSubExpr());
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if (HasSpecifier)
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OS << ')';
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}
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