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/Object/ELF.h"
26 SparcMCExpr::Create(VariantKind Kind, const MCExpr *Expr,
28 return new (Ctx) SparcMCExpr(Kind, Expr);
33 void SparcMCExpr::PrintImpl(raw_ostream &OS) const
36 bool closeParen = printVariantKind(OS, Kind);
38 const MCExpr *Expr = getSubExpr();
45 bool SparcMCExpr::printVariantKind(raw_ostream &OS, VariantKind Kind)
47 bool closeParen = true;
49 case VK_Sparc_None: closeParen = false; break;
50 case VK_Sparc_LO: OS << "%lo("; break;
51 case VK_Sparc_HI: OS << "%hi("; break;
52 case VK_Sparc_H44: OS << "%h44("; break;
53 case VK_Sparc_M44: OS << "%m44("; break;
54 case VK_Sparc_L44: OS << "%l44("; break;
55 case VK_Sparc_HH: OS << "%hh("; break;
56 case VK_Sparc_HM: OS << "%hm("; break;
57 case VK_Sparc_R_DISP32: OS << "%r_disp32("; break;
58 case VK_Sparc_TLS_GD_HI22: OS << "%tgd_hi22("; break;
59 case VK_Sparc_TLS_GD_LO10: OS << "%tgd_lo10("; break;
60 case VK_Sparc_TLS_GD_ADD: OS << "%tgd_add("; break;
61 case VK_Sparc_TLS_GD_CALL: OS << "%tgd_call("; break;
62 case VK_Sparc_TLS_LDM_HI22: OS << "%tldm_hi22("; break;
63 case VK_Sparc_TLS_LDM_LO10: OS << "%tldm_lo10("; break;
64 case VK_Sparc_TLS_LDM_ADD: OS << "%tldm_add("; break;
65 case VK_Sparc_TLS_LDM_CALL: OS << "%tldm_call("; break;
66 case VK_Sparc_TLS_LDO_HIX22: OS << "%tldo_hix22("; break;
67 case VK_Sparc_TLS_LDO_LOX10: OS << "%tldo_lox10("; break;
68 case VK_Sparc_TLS_LDO_ADD: OS << "%tldo_add("; break;
69 case VK_Sparc_TLS_IE_HI22: OS << "%tie_hi22("; break;
70 case VK_Sparc_TLS_IE_LO10: OS << "%tie_lo10("; break;
71 case VK_Sparc_TLS_IE_LD: OS << "%tie_ld("; break;
72 case VK_Sparc_TLS_IE_LDX: OS << "%tie_ldx("; break;
73 case VK_Sparc_TLS_IE_ADD: OS << "%tie_add("; break;
74 case VK_Sparc_TLS_LE_HIX22: OS << "%tle_hix22("; break;
75 case VK_Sparc_TLS_LE_LOX10: OS << "%tle_lox10("; break;
80 SparcMCExpr::VariantKind SparcMCExpr::parseVariantKind(StringRef name)
82 return StringSwitch<SparcMCExpr::VariantKind>(name)
83 .Case("lo", VK_Sparc_LO)
84 .Case("hi", VK_Sparc_HI)
85 .Case("h44", VK_Sparc_H44)
86 .Case("m44", VK_Sparc_M44)
87 .Case("l44", VK_Sparc_L44)
88 .Case("hh", VK_Sparc_HH)
89 .Case("hm", VK_Sparc_HM)
90 .Case("r_disp32", VK_Sparc_R_DISP32)
91 .Case("tgd_hi22", VK_Sparc_TLS_GD_HI22)
92 .Case("tgd_lo10", VK_Sparc_TLS_GD_LO10)
93 .Case("tgd_add", VK_Sparc_TLS_GD_ADD)
94 .Case("tgd_call", VK_Sparc_TLS_GD_CALL)
95 .Case("tldm_hi22", VK_Sparc_TLS_LDM_HI22)
96 .Case("tldm_lo10", VK_Sparc_TLS_LDM_LO10)
97 .Case("tldm_add", VK_Sparc_TLS_LDM_ADD)
98 .Case("tldm_call", VK_Sparc_TLS_LDM_CALL)
99 .Case("tldo_hix22", VK_Sparc_TLS_LDO_HIX22)
100 .Case("tldo_lox10", VK_Sparc_TLS_LDO_LOX10)
101 .Case("tldo_add", VK_Sparc_TLS_LDO_ADD)
102 .Case("tie_hi22", VK_Sparc_TLS_IE_HI22)
103 .Case("tie_lo10", VK_Sparc_TLS_IE_LO10)
104 .Case("tie_ld", VK_Sparc_TLS_IE_LD)
105 .Case("tie_ldx", VK_Sparc_TLS_IE_LDX)
106 .Case("tie_add", VK_Sparc_TLS_IE_ADD)
107 .Case("tle_hix22", VK_Sparc_TLS_LE_HIX22)
108 .Case("tle_lox10", VK_Sparc_TLS_LE_LOX10)
109 .Default(VK_Sparc_None);
113 SparcMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
114 const MCAsmLayout *Layout) const {
117 return getSubExpr()->EvaluateAsRelocatable(Res, *Layout);
120 static void fixELFSymbolsInTLSFixupsImpl(const MCExpr *Expr, MCAssembler &Asm) {
121 assert(0 && "Implement fixELFSymbolsInTLSFixupsImpl!");
124 void SparcMCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
127 case VK_Sparc_TLS_GD_HI22:
128 case VK_Sparc_TLS_GD_LO10:
129 case VK_Sparc_TLS_GD_ADD:
130 case VK_Sparc_TLS_GD_CALL:
131 case VK_Sparc_TLS_LDM_HI22:
132 case VK_Sparc_TLS_LDM_LO10:
133 case VK_Sparc_TLS_LDM_ADD:
134 case VK_Sparc_TLS_LDM_CALL:
135 case VK_Sparc_TLS_LDO_HIX22:
136 case VK_Sparc_TLS_LDO_LOX10:
137 case VK_Sparc_TLS_LDO_ADD:
138 case VK_Sparc_TLS_IE_HI22:
139 case VK_Sparc_TLS_IE_LO10:
140 case VK_Sparc_TLS_IE_LD:
141 case VK_Sparc_TLS_IE_LDX:
142 case VK_Sparc_TLS_IE_ADD:
143 case VK_Sparc_TLS_LE_HIX22:
144 case VK_Sparc_TLS_LE_LOX10: break;
146 fixELFSymbolsInTLSFixupsImpl(getSubExpr(), Asm);
149 // FIXME: This basically copies MCObjectStreamer::AddValueSymbols. Perhaps
150 // that method should be made public?
151 // FIXME: really do above: now that at least three other backends are using it.
152 static void AddValueSymbolsImpl(const MCExpr *Value, MCAssembler *Asm) {
153 switch (Value->getKind()) {
155 llvm_unreachable("Can't handle nested target expr!");
158 case MCExpr::Constant:
161 case MCExpr::Binary: {
162 const MCBinaryExpr *BE = cast<MCBinaryExpr>(Value);
163 AddValueSymbolsImpl(BE->getLHS(), Asm);
164 AddValueSymbolsImpl(BE->getRHS(), Asm);
168 case MCExpr::SymbolRef:
169 Asm->getOrCreateSymbolData(cast<MCSymbolRefExpr>(Value)->getSymbol());
173 AddValueSymbolsImpl(cast<MCUnaryExpr>(Value)->getSubExpr(), Asm);
178 void SparcMCExpr::AddValueSymbols(MCAssembler *Asm) const {
179 AddValueSymbolsImpl(getSubExpr(), Asm);