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);
32 void SparcMCExpr::PrintImpl(raw_ostream &OS) const
34 bool closeParen = true;
36 case VK_Sparc_None: closeParen = false; break;
37 case VK_Sparc_LO: OS << "%lo("; break;
38 case VK_Sparc_HI: OS << "%hi("; break;
39 case VK_Sparc_H44: OS << "%h44("; break;
40 case VK_Sparc_M44: OS << "%m44("; break;
41 case VK_Sparc_L44: OS << "%l44("; break;
42 case VK_Sparc_HH: OS << "%hh("; break;
43 case VK_Sparc_HM: OS << "%hm("; break;
44 case VK_Sparc_R_DISP32: OS << "%r_disp32("; break;
45 case VK_Sparc_TLS_GD_HI22: OS << "%tgd_hi22("; break;
46 case VK_Sparc_TLS_GD_LO10: OS << "%tgd_lo10("; break;
47 case VK_Sparc_TLS_GD_ADD: OS << "%tgd_add("; break;
48 case VK_Sparc_TLS_GD_CALL: OS << "%tgd_call("; break;
49 case VK_Sparc_TLS_LDM_HI22: OS << "%tldm_hi22("; break;
50 case VK_Sparc_TLS_LDM_LO10: OS << "%tldm_lo10("; break;
51 case VK_Sparc_TLS_LDM_ADD: OS << "%tldm_add("; break;
52 case VK_Sparc_TLS_LDM_CALL: OS << "%tldm_call("; break;
53 case VK_Sparc_TLS_LDO_HIX22: OS << "%tldo_hix22("; break;
54 case VK_Sparc_TLS_LDO_LOX10: OS << "%tldo_lox10("; break;
55 case VK_Sparc_TLS_LDO_ADD: OS << "%tldo_add("; break;
56 case VK_Sparc_TLS_IE_HI22: OS << "%tie_hi22("; break;
57 case VK_Sparc_TLS_IE_LO10: OS << "%tie_lo10("; break;
58 case VK_Sparc_TLS_IE_LD: OS << "%tie_ld("; break;
59 case VK_Sparc_TLS_IE_LDX: OS << "%tie_ldx("; break;
60 case VK_Sparc_TLS_IE_ADD: OS << "%tie_add("; break;
61 case VK_Sparc_TLS_LE_HIX22: OS << "%tle_hix22("; break;
62 case VK_Sparc_TLS_LE_LOX10: OS << "%tle_lox10("; break;
65 const MCExpr *Expr = getSubExpr();
71 SparcMCExpr::VariantKind SparcMCExpr::parseVariantKind(StringRef name)
73 return StringSwitch<SparcMCExpr::VariantKind>(name)
74 .Case("lo", VK_Sparc_LO)
75 .Case("hi", VK_Sparc_HI)
76 .Case("h44", VK_Sparc_H44)
77 .Case("m44", VK_Sparc_M44)
78 .Case("l44", VK_Sparc_L44)
79 .Case("hh", VK_Sparc_HH)
80 .Case("hm", VK_Sparc_HM)
81 .Case("r_disp32", VK_Sparc_R_DISP32)
82 .Case("tgd_hi22", VK_Sparc_TLS_GD_HI22)
83 .Case("tgd_lo10", VK_Sparc_TLS_GD_LO10)
84 .Case("tgd_add", VK_Sparc_TLS_GD_ADD)
85 .Case("tgd_call", VK_Sparc_TLS_GD_CALL)
86 .Case("tldm_hi22", VK_Sparc_TLS_LDM_HI22)
87 .Case("tldm_lo10", VK_Sparc_TLS_LDM_LO10)
88 .Case("tldm_add", VK_Sparc_TLS_LDM_ADD)
89 .Case("tldm_call", VK_Sparc_TLS_LDM_CALL)
90 .Case("tldo_hix22", VK_Sparc_TLS_LDO_HIX22)
91 .Case("tldo_lox10", VK_Sparc_TLS_LDO_LOX10)
92 .Case("tldo_add", VK_Sparc_TLS_LDO_ADD)
93 .Case("tie_hi22", VK_Sparc_TLS_IE_HI22)
94 .Case("tie_lo10", VK_Sparc_TLS_IE_LO10)
95 .Case("tie_ld", VK_Sparc_TLS_IE_LD)
96 .Case("tie_ldx", VK_Sparc_TLS_IE_LDX)
97 .Case("tie_add", VK_Sparc_TLS_IE_ADD)
98 .Case("tle_hix22", VK_Sparc_TLS_LE_HIX22)
99 .Case("tle_lox10", VK_Sparc_TLS_LE_LOX10)
100 .Default(VK_Sparc_None);
104 SparcMCExpr::EvaluateAsRelocatableImpl(MCValue &Res,
105 const MCAsmLayout *Layout) const {
108 return getSubExpr()->EvaluateAsRelocatable(Res, *Layout);
111 static void fixELFSymbolsInTLSFixupsImpl(const MCExpr *Expr, MCAssembler &Asm) {
112 assert(0 && "Implement fixELFSymbolsInTLSFixupsImpl!");
115 void SparcMCExpr::fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {
118 case VK_Sparc_TLS_GD_HI22:
119 case VK_Sparc_TLS_GD_LO10:
120 case VK_Sparc_TLS_GD_ADD:
121 case VK_Sparc_TLS_GD_CALL:
122 case VK_Sparc_TLS_LDM_HI22:
123 case VK_Sparc_TLS_LDM_LO10:
124 case VK_Sparc_TLS_LDM_ADD:
125 case VK_Sparc_TLS_LDM_CALL:
126 case VK_Sparc_TLS_LDO_HIX22:
127 case VK_Sparc_TLS_LDO_LOX10:
128 case VK_Sparc_TLS_LDO_ADD:
129 case VK_Sparc_TLS_IE_HI22:
130 case VK_Sparc_TLS_IE_LO10:
131 case VK_Sparc_TLS_IE_LD:
132 case VK_Sparc_TLS_IE_LDX:
133 case VK_Sparc_TLS_IE_ADD:
134 case VK_Sparc_TLS_LE_HIX22:
135 case VK_Sparc_TLS_LE_LOX10: break;
137 fixELFSymbolsInTLSFixupsImpl(getSubExpr(), Asm);
140 // FIXME: This basically copies MCObjectStreamer::AddValueSymbols. Perhaps
141 // that method should be made public?
142 // FIXME: really do above: now that at least three other backends are using it.
143 static void AddValueSymbolsImpl(const MCExpr *Value, MCAssembler *Asm) {
144 switch (Value->getKind()) {
146 llvm_unreachable("Can't handle nested target expr!");
149 case MCExpr::Constant:
152 case MCExpr::Binary: {
153 const MCBinaryExpr *BE = cast<MCBinaryExpr>(Value);
154 AddValueSymbolsImpl(BE->getLHS(), Asm);
155 AddValueSymbolsImpl(BE->getRHS(), Asm);
159 case MCExpr::SymbolRef:
160 Asm->getOrCreateSymbolData(cast<MCSymbolRefExpr>(Value)->getSymbol());
164 AddValueSymbolsImpl(cast<MCUnaryExpr>(Value)->getSubExpr(), Asm);
169 void SparcMCExpr::AddValueSymbols(MCAssembler *Asm) const {
170 AddValueSymbolsImpl(getSubExpr(), Asm);