1 //===-- SparcMCExpr.cpp - Sparc specific MC expression classes --------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the implementation of the assembly expression modifiers
11 // accepted by the Sparc architecture (e.g. "%hi", "%lo", ...).
13 //===----------------------------------------------------------------------===//
15 #define DEBUG_TYPE "sparcmcexpr"
16 #include "SparcMCExpr.h"
17 #include "llvm/MC/MCAssembler.h"
18 #include "llvm/MC/MCContext.h"
19 #include "llvm/MC/MCELF.h"
20 #include "llvm/MC/MCSymbol.h"
21 #include "llvm/Object/ELF.h"
27 SparcMCExpr::Create(VariantKind Kind, const MCExpr *Expr,
29 return new (Ctx) SparcMCExpr(Kind, Expr);
34 void SparcMCExpr::PrintImpl(raw_ostream &OS) const
37 bool closeParen = printVariantKind(OS, Kind);
39 const MCExpr *Expr = getSubExpr();
46 bool SparcMCExpr::printVariantKind(raw_ostream &OS, VariantKind Kind)
48 bool closeParen = true;
50 case VK_Sparc_None: closeParen = false; break;
51 case VK_Sparc_LO: OS << "%lo("; break;
52 case VK_Sparc_HI: OS << "%hi("; break;
53 case VK_Sparc_H44: OS << "%h44("; break;
54 case VK_Sparc_M44: OS << "%m44("; break;
55 case VK_Sparc_L44: OS << "%l44("; break;
56 case VK_Sparc_HH: OS << "%hh("; break;
57 case VK_Sparc_HM: OS << "%hm("; break;
58 // FIXME: use %pc22/%pc10, if system assembler supports them.
59 case VK_Sparc_PC22: OS << "%hi("; break;
60 case VK_Sparc_PC10: OS << "%lo("; break;
61 // FIXME: use %got22/%got10, if system assembler supports them.
62 case VK_Sparc_GOT22: OS << "%hi("; break;
63 case VK_Sparc_GOT10: OS << "%lo("; break;
64 case VK_Sparc_WPLT30: closeParen = false; break;
65 case VK_Sparc_R_DISP32: OS << "%r_disp32("; break;
66 case VK_Sparc_TLS_GD_HI22: OS << "%tgd_hi22("; break;
67 case VK_Sparc_TLS_GD_LO10: OS << "%tgd_lo10("; break;
68 case VK_Sparc_TLS_GD_ADD: OS << "%tgd_add("; break;
69 case VK_Sparc_TLS_GD_CALL: OS << "%tgd_call("; break;
70 case VK_Sparc_TLS_LDM_HI22: OS << "%tldm_hi22("; break;
71 case VK_Sparc_TLS_LDM_LO10: OS << "%tldm_lo10("; break;
72 case VK_Sparc_TLS_LDM_ADD: OS << "%tldm_add("; break;
73 case VK_Sparc_TLS_LDM_CALL: OS << "%tldm_call("; break;
74 case VK_Sparc_TLS_LDO_HIX22: OS << "%tldo_hix22("; break;
75 case VK_Sparc_TLS_LDO_LOX10: OS << "%tldo_lox10("; break;
76 case VK_Sparc_TLS_LDO_ADD: OS << "%tldo_add("; break;
77 case VK_Sparc_TLS_IE_HI22: OS << "%tie_hi22("; break;
78 case VK_Sparc_TLS_IE_LO10: OS << "%tie_lo10("; break;
79 case VK_Sparc_TLS_IE_LD: OS << "%tie_ld("; break;
80 case VK_Sparc_TLS_IE_LDX: OS << "%tie_ldx("; break;
81 case VK_Sparc_TLS_IE_ADD: OS << "%tie_add("; break;
82 case VK_Sparc_TLS_LE_HIX22: OS << "%tle_hix22("; break;
83 case VK_Sparc_TLS_LE_LOX10: OS << "%tle_lox10("; break;
88 SparcMCExpr::VariantKind SparcMCExpr::parseVariantKind(StringRef name)
90 return StringSwitch<SparcMCExpr::VariantKind>(name)
91 .Case("lo", VK_Sparc_LO)
92 .Case("hi", VK_Sparc_HI)
93 .Case("h44", VK_Sparc_H44)
94 .Case("m44", VK_Sparc_M44)
95 .Case("l44", VK_Sparc_L44)
96 .Case("hh", VK_Sparc_HH)
97 .Case("hm", VK_Sparc_HM)
98 .Case("pc22", VK_Sparc_PC22)
99 .Case("pc10", VK_Sparc_PC10)
100 .Case("got22", VK_Sparc_GOT22)
101 .Case("got10", VK_Sparc_GOT10)
102 .Case("r_disp32", VK_Sparc_R_DISP32)
103 .Case("tgd_hi22", VK_Sparc_TLS_GD_HI22)
104 .Case("tgd_lo10", VK_Sparc_TLS_GD_LO10)
105 .Case("tgd_add", VK_Sparc_TLS_GD_ADD)
106 .Case("tgd_call", VK_Sparc_TLS_GD_CALL)
107 .Case("tldm_hi22", VK_Sparc_TLS_LDM_HI22)
108 .Case("tldm_lo10", VK_Sparc_TLS_LDM_LO10)
109 .Case("tldm_add", VK_Sparc_TLS_LDM_ADD)
110 .Case("tldm_call", VK_Sparc_TLS_LDM_CALL)
111 .Case("tldo_hix22", VK_Sparc_TLS_LDO_HIX22)
112 .Case("tldo_lox10", VK_Sparc_TLS_LDO_LOX10)
113 .Case("tldo_add", VK_Sparc_TLS_LDO_ADD)
114 .Case("tie_hi22", VK_Sparc_TLS_IE_HI22)
115 .Case("tie_lo10", VK_Sparc_TLS_IE_LO10)
116 .Case("tie_ld", VK_Sparc_TLS_IE_LD)
117 .Case("tie_ldx", VK_Sparc_TLS_IE_LDX)
118 .Case("tie_add", VK_Sparc_TLS_IE_ADD)
119 .Case("tle_hix22", VK_Sparc_TLS_LE_HIX22)
120 .Case("tle_lox10", VK_Sparc_TLS_LE_LOX10)
121 .Default(VK_Sparc_None);
124 Sparc::Fixups SparcMCExpr::getFixupKind(SparcMCExpr::VariantKind Kind) {
126 default: assert(0 && "Unhandled SparcMCExpr::VariantKind");
127 case VK_Sparc_LO: return Sparc::fixup_sparc_lo10;
128 case VK_Sparc_HI: return Sparc::fixup_sparc_hi22;
129 case VK_Sparc_H44: return Sparc::fixup_sparc_h44;
130 case VK_Sparc_M44: return Sparc::fixup_sparc_m44;
131 case VK_Sparc_L44: return Sparc::fixup_sparc_l44;
132 case VK_Sparc_HH: return Sparc::fixup_sparc_hh;
133 case VK_Sparc_HM: return Sparc::fixup_sparc_hm;
134 case VK_Sparc_PC22: return Sparc::fixup_sparc_pc22;
135 case VK_Sparc_PC10: return Sparc::fixup_sparc_pc10;
136 case VK_Sparc_GOT22: return Sparc::fixup_sparc_got22;
137 case VK_Sparc_GOT10: return Sparc::fixup_sparc_got10;
142 SparcMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
143 const MCAsmLayout *Layout) const {
146 return getSubExpr()->EvaluateAsRelocatable(Res, *Layout);
149 static void fixELFSymbolsInTLSFixupsImpl(const MCExpr *Expr, MCAssembler &Asm) {
150 assert(0 && "Implement fixELFSymbolsInTLSFixupsImpl!");
153 void SparcMCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
156 case VK_Sparc_TLS_GD_HI22:
157 case VK_Sparc_TLS_GD_LO10:
158 case VK_Sparc_TLS_GD_ADD:
159 case VK_Sparc_TLS_GD_CALL:
160 case VK_Sparc_TLS_LDM_HI22:
161 case VK_Sparc_TLS_LDM_LO10:
162 case VK_Sparc_TLS_LDM_ADD:
163 case VK_Sparc_TLS_LDM_CALL:
164 case VK_Sparc_TLS_LDO_HIX22:
165 case VK_Sparc_TLS_LDO_LOX10:
166 case VK_Sparc_TLS_LDO_ADD:
167 case VK_Sparc_TLS_IE_HI22:
168 case VK_Sparc_TLS_IE_LO10:
169 case VK_Sparc_TLS_IE_LD:
170 case VK_Sparc_TLS_IE_LDX:
171 case VK_Sparc_TLS_IE_ADD:
172 case VK_Sparc_TLS_LE_HIX22:
173 case VK_Sparc_TLS_LE_LOX10: break;
175 fixELFSymbolsInTLSFixupsImpl(getSubExpr(), Asm);
178 // FIXME: This basically copies MCObjectStreamer::AddValueSymbols. Perhaps
179 // that method should be made public?
180 // FIXME: really do above: now that at least three other backends are using it.
181 static void AddValueSymbolsImpl(const MCExpr *Value, MCAssembler *Asm) {
182 switch (Value->getKind()) {
184 llvm_unreachable("Can't handle nested target expr!");
187 case MCExpr::Constant:
190 case MCExpr::Binary: {
191 const MCBinaryExpr *BE = cast<MCBinaryExpr>(Value);
192 AddValueSymbolsImpl(BE->getLHS(), Asm);
193 AddValueSymbolsImpl(BE->getRHS(), Asm);
197 case MCExpr::SymbolRef:
198 Asm->getOrCreateSymbolData(cast<MCSymbolRefExpr>(Value)->getSymbol());
202 AddValueSymbolsImpl(cast<MCUnaryExpr>(Value)->getSubExpr(), Asm);
207 void SparcMCExpr::AddValueSymbols(MCAssembler *Asm) const {
208 AddValueSymbolsImpl(getSubExpr(), Asm);