| //===-- SparcMCExpr.cpp - Sparc specific MC expression classes --------===// |
| // |
| // 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 implementation of the assembly expression modifiers |
| // accepted by the Sparc architecture (e.g. "%hi", "%lo", ...). |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "SparcMCExpr.h" |
| #include "llvm/BinaryFormat/ELF.h" |
| #include "llvm/MC/MCAssembler.h" |
| #include "llvm/MC/MCContext.h" |
| #include "llvm/MC/MCObjectStreamer.h" |
| #include "llvm/MC/MCSymbolELF.h" |
| #include "llvm/MC/MCValue.h" |
| #include "llvm/Support/Casting.h" |
| |
| using namespace llvm; |
| |
| #define DEBUG_TYPE "sparcmcexpr" |
| |
| const SparcMCExpr *SparcMCExpr::create(Specifier S, const MCExpr *Expr, |
| MCContext &Ctx) { |
| return new (Ctx) SparcMCExpr(S, Expr); |
| } |
| |
| void SparcMCExpr::printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const { |
| |
| bool closeParen = printSpecifier(OS, specifier); |
| |
| const MCExpr *Expr = getSubExpr(); |
| Expr->print(OS, MAI); |
| |
| if (closeParen) |
| OS << ')'; |
| } |
| |
| bool SparcMCExpr::printSpecifier(raw_ostream &OS, Specifier S) { |
| // clang-format off |
| switch (S) { |
| case VK_None: return false; |
| case VK_LO: OS << "%lo("; return true; |
| case VK_HI: OS << "%hi("; return true; |
| case VK_H44: OS << "%h44("; return true; |
| case VK_M44: OS << "%m44("; return true; |
| case VK_L44: OS << "%l44("; return true; |
| case VK_HH: OS << "%hh("; return true; |
| case VK_HM: OS << "%hm("; return true; |
| case VK_LM: OS << "%lm("; return true; |
| // FIXME: use %pc22/%pc10, if system assembler supports them. |
| case VK_PC22: OS << "%hi("; return true; |
| case VK_PC10: OS << "%lo("; return true; |
| // FIXME: use %got22/%got10, if system assembler supports them. |
| case VK_GOT22: OS << "%hi("; return true; |
| case VK_GOT10: OS << "%lo("; return true; |
| case VK_GOT13: return false; |
| case VK_13: return false; |
| case VK_WDISP30: return false; |
| case VK_WPLT30: return false; |
| case VK_R_DISP32: OS << "%r_disp32("; return true; |
| case VK_TLS_GD_HI22: OS << "%tgd_hi22("; return true; |
| case VK_TLS_GD_LO10: OS << "%tgd_lo10("; return true; |
| case VK_TLS_GD_ADD: OS << "%tgd_add("; return true; |
| case VK_TLS_GD_CALL: OS << "%tgd_call("; return true; |
| case VK_TLS_LDM_HI22: OS << "%tldm_hi22("; return true; |
| case VK_TLS_LDM_LO10: OS << "%tldm_lo10("; return true; |
| case VK_TLS_LDM_ADD: OS << "%tldm_add("; return true; |
| case VK_TLS_LDM_CALL: OS << "%tldm_call("; return true; |
| case VK_TLS_LDO_HIX22: OS << "%tldo_hix22("; return true; |
| case VK_TLS_LDO_LOX10: OS << "%tldo_lox10("; return true; |
| case VK_TLS_LDO_ADD: OS << "%tldo_add("; return true; |
| case VK_TLS_IE_HI22: OS << "%tie_hi22("; return true; |
| case VK_TLS_IE_LO10: OS << "%tie_lo10("; return true; |
| case VK_TLS_IE_LD: OS << "%tie_ld("; return true; |
| case VK_TLS_IE_LDX: OS << "%tie_ldx("; return true; |
| case VK_TLS_IE_ADD: OS << "%tie_add("; return true; |
| case VK_TLS_LE_HIX22: OS << "%tle_hix22("; return true; |
| case VK_TLS_LE_LOX10: OS << "%tle_lox10("; return true; |
| case VK_HIX22: OS << "%hix("; return true; |
| case VK_LOX10: OS << "%lox("; return true; |
| case VK_GOTDATA_HIX22: OS << "%gdop_hix22("; return true; |
| case VK_GOTDATA_LOX10: OS << "%gdop_lox10("; return true; |
| case VK_GOTDATA_OP: OS << "%gdop("; return true; |
| } |
| // clang-format on |
| llvm_unreachable("Unhandled SparcMCExpr::Specifier"); |
| } |
| |
| SparcMCExpr::Specifier SparcMCExpr::parseSpecifier(StringRef name) { |
| return StringSwitch<SparcMCExpr::Specifier>(name) |
| .Case("lo", VK_LO) |
| .Case("hi", VK_HI) |
| .Case("h44", VK_H44) |
| .Case("m44", VK_M44) |
| .Case("l44", VK_L44) |
| .Case("hh", VK_HH) |
| .Case("uhi", VK_HH) // Nonstandard GNU extension |
| .Case("hm", VK_HM) |
| .Case("ulo", VK_HM) // Nonstandard GNU extension |
| .Case("lm", VK_LM) |
| .Case("pc22", VK_PC22) |
| .Case("pc10", VK_PC10) |
| .Case("got22", VK_GOT22) |
| .Case("got10", VK_GOT10) |
| .Case("got13", VK_GOT13) |
| .Case("r_disp32", VK_R_DISP32) |
| .Case("tgd_hi22", VK_TLS_GD_HI22) |
| .Case("tgd_lo10", VK_TLS_GD_LO10) |
| .Case("tgd_add", VK_TLS_GD_ADD) |
| .Case("tgd_call", VK_TLS_GD_CALL) |
| .Case("tldm_hi22", VK_TLS_LDM_HI22) |
| .Case("tldm_lo10", VK_TLS_LDM_LO10) |
| .Case("tldm_add", VK_TLS_LDM_ADD) |
| .Case("tldm_call", VK_TLS_LDM_CALL) |
| .Case("tldo_hix22", VK_TLS_LDO_HIX22) |
| .Case("tldo_lox10", VK_TLS_LDO_LOX10) |
| .Case("tldo_add", VK_TLS_LDO_ADD) |
| .Case("tie_hi22", VK_TLS_IE_HI22) |
| .Case("tie_lo10", VK_TLS_IE_LO10) |
| .Case("tie_ld", VK_TLS_IE_LD) |
| .Case("tie_ldx", VK_TLS_IE_LDX) |
| .Case("tie_add", VK_TLS_IE_ADD) |
| .Case("tle_hix22", VK_TLS_LE_HIX22) |
| .Case("tle_lox10", VK_TLS_LE_LOX10) |
| .Case("hix", VK_HIX22) |
| .Case("lox", VK_LOX10) |
| .Case("gdop_hix22", VK_GOTDATA_HIX22) |
| .Case("gdop_lox10", VK_GOTDATA_LOX10) |
| .Case("gdop", VK_GOTDATA_OP) |
| .Default(VK_None); |
| } |
| |
| uint16_t SparcMCExpr::getFixupKind() const { |
| // clang-format off |
| switch (specifier) { |
| default: llvm_unreachable("Unhandled SparcMCExpr::Specifier"); |
| case VK_LO: return Sparc::fixup_sparc_lo10; |
| case VK_HI: return Sparc::fixup_sparc_hi22; |
| case VK_H44: return Sparc::fixup_sparc_h44; |
| case VK_M44: return Sparc::fixup_sparc_m44; |
| case VK_L44: return Sparc::fixup_sparc_l44; |
| case VK_HH: return Sparc::fixup_sparc_hh; |
| case VK_HM: return Sparc::fixup_sparc_hm; |
| case VK_LM: return Sparc::fixup_sparc_lm; |
| case VK_PC22: return Sparc::fixup_sparc_pc22; |
| case VK_PC10: return Sparc::fixup_sparc_pc10; |
| case VK_GOT22: return ELF::R_SPARC_GOT22; |
| case VK_GOT10: return ELF::R_SPARC_GOT10; |
| case VK_GOT13: return ELF::R_SPARC_GOT13; |
| case VK_13: return Sparc::fixup_sparc_13; |
| case VK_WPLT30: return Sparc::fixup_sparc_wplt30; |
| case VK_WDISP30: return Sparc::fixup_sparc_call30; |
| case VK_TLS_GD_HI22: return Sparc::fixup_sparc_tls_gd_hi22; |
| case VK_TLS_GD_LO10: return Sparc::fixup_sparc_tls_gd_lo10; |
| case VK_TLS_GD_ADD: return Sparc::fixup_sparc_tls_gd_add; |
| case VK_TLS_GD_CALL: return Sparc::fixup_sparc_tls_gd_call; |
| case VK_TLS_LDM_HI22: return Sparc::fixup_sparc_tls_ldm_hi22; |
| case VK_TLS_LDM_LO10: return Sparc::fixup_sparc_tls_ldm_lo10; |
| case VK_TLS_LDM_ADD: return Sparc::fixup_sparc_tls_ldm_add; |
| case VK_TLS_LDM_CALL: return Sparc::fixup_sparc_tls_ldm_call; |
| case VK_TLS_LDO_HIX22: return Sparc::fixup_sparc_tls_ldo_hix22; |
| case VK_TLS_LDO_LOX10: return Sparc::fixup_sparc_tls_ldo_lox10; |
| case VK_TLS_LDO_ADD: return Sparc::fixup_sparc_tls_ldo_add; |
| case VK_TLS_IE_HI22: return Sparc::fixup_sparc_tls_ie_hi22; |
| case VK_TLS_IE_LO10: return Sparc::fixup_sparc_tls_ie_lo10; |
| case VK_TLS_IE_LD: return Sparc::fixup_sparc_tls_ie_ld; |
| case VK_TLS_IE_LDX: return Sparc::fixup_sparc_tls_ie_ldx; |
| case VK_TLS_IE_ADD: return Sparc::fixup_sparc_tls_ie_add; |
| case VK_TLS_LE_HIX22: return Sparc::fixup_sparc_tls_le_hix22; |
| case VK_TLS_LE_LOX10: return Sparc::fixup_sparc_tls_le_lox10; |
| case VK_HIX22: return Sparc::fixup_sparc_hix22; |
| case VK_LOX10: return Sparc::fixup_sparc_lox10; |
| case VK_GOTDATA_HIX22: return Sparc::fixup_sparc_gotdata_hix22; |
| case VK_GOTDATA_LOX10: return Sparc::fixup_sparc_gotdata_lox10; |
| case VK_GOTDATA_OP: return Sparc::fixup_sparc_gotdata_op; |
| } |
| // clang-format on |
| } |
| |
| bool SparcMCExpr::evaluateAsRelocatableImpl(MCValue &Res, |
| const MCAssembler *Asm) const { |
| if (!getSubExpr()->evaluateAsRelocatable(Res, Asm)) |
| return false; |
| Res.setSpecifier(specifier); |
| return true; |
| } |
| |
| void SparcMCExpr::visitUsedExpr(MCStreamer &Streamer) const { |
| Streamer.visitUsedExpr(*getSubExpr()); |
| } |
