Daniel Dunbar | a11af53 | 2009-06-24 01:03:06 +0000 | [diff] [blame] | 1 | //===- lib/MC/MCStreamer.cpp - Streaming Machine Code Output --------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
Rafael Espindola | 0bbe0b4 | 2010-12-06 17:27:56 +0000 | [diff] [blame] | 10 | #include "llvm/MC/MCAsmInfo.h" |
Rafael Espindola | af6b5808 | 2010-11-16 21:20:32 +0000 | [diff] [blame] | 11 | #include "llvm/MC/MCContext.h" |
Daniel Dunbar | a11af53 | 2009-06-24 01:03:06 +0000 | [diff] [blame] | 12 | #include "llvm/MC/MCStreamer.h" |
Chris Lattner | ddf6bdd | 2010-01-19 18:45:47 +0000 | [diff] [blame] | 13 | #include "llvm/MC/MCExpr.h" |
Kevin Enderby | c095793 | 2010-09-30 16:52:03 +0000 | [diff] [blame] | 14 | #include "llvm/MC/MCObjectWriter.h" |
Rafael Espindola | ed708f9 | 2011-04-27 15:21:19 +0000 | [diff] [blame^] | 15 | #include "llvm/MC/MCSymbol.h" |
Rafael Espindola | 484291c | 2010-11-01 14:28:48 +0000 | [diff] [blame] | 16 | #include "llvm/Support/ErrorHandling.h" |
Chris Lattner | d79d9dc | 2010-01-22 19:17:48 +0000 | [diff] [blame] | 17 | #include "llvm/Support/raw_ostream.h" |
Chris Lattner | 58bc4dd | 2010-04-03 22:12:35 +0000 | [diff] [blame] | 18 | #include "llvm/ADT/SmallString.h" |
| 19 | #include "llvm/ADT/Twine.h" |
Chris Lattner | 3580dea | 2010-04-03 21:48:59 +0000 | [diff] [blame] | 20 | #include <cstdlib> |
Daniel Dunbar | a11af53 | 2009-06-24 01:03:06 +0000 | [diff] [blame] | 21 | using namespace llvm; |
| 22 | |
Rafael Espindola | 7768a9d | 2011-02-16 01:08:29 +0000 | [diff] [blame] | 23 | MCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx) { |
Joerg Sonnenberger | 7d0805d | 2011-02-21 01:07:42 +0000 | [diff] [blame] | 24 | const MCSection *section = NULL; |
| 25 | SectionStack.push_back(std::make_pair(section, section)); |
Daniel Dunbar | a11af53 | 2009-06-24 01:03:06 +0000 | [diff] [blame] | 26 | } |
| 27 | |
| 28 | MCStreamer::~MCStreamer() { |
| 29 | } |
Chris Lattner | ddf6bdd | 2010-01-19 18:45:47 +0000 | [diff] [blame] | 30 | |
Chris Lattner | d79d9dc | 2010-01-22 19:17:48 +0000 | [diff] [blame] | 31 | raw_ostream &MCStreamer::GetCommentOS() { |
| 32 | // By default, discard comments. |
| 33 | return nulls(); |
| 34 | } |
| 35 | |
Rafael Espindola | 32a006e | 2010-12-03 00:55:40 +0000 | [diff] [blame] | 36 | void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta, |
| 37 | const MCSymbol *Label, int PointerSize) { |
| 38 | // emit the sequence to set the address |
| 39 | EmitIntValue(dwarf::DW_LNS_extended_op, 1); |
| 40 | EmitULEB128IntValue(PointerSize + 1); |
| 41 | EmitIntValue(dwarf::DW_LNE_set_address, 1); |
| 42 | EmitSymbolValue(Label, PointerSize); |
| 43 | |
| 44 | // emit the sequence for the LineDelta (from 1) and a zero address delta. |
| 45 | MCDwarfLineAddr::Emit(this, LineDelta, 0); |
| 46 | } |
Chris Lattner | d79d9dc | 2010-01-22 19:17:48 +0000 | [diff] [blame] | 47 | |
Chris Lattner | 32ae3fe | 2010-01-19 22:03:38 +0000 | [diff] [blame] | 48 | /// EmitIntValue - Special case of EmitValue that avoids the client having to |
| 49 | /// pass in a MCExpr for constant integers. |
| 50 | void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size, |
| 51 | unsigned AddrSpace) { |
Devang Patel | dea914b | 2010-12-09 19:26:21 +0000 | [diff] [blame] | 52 | assert(Size <= 8 && "Invalid size"); |
Matt Beaumont-Gay | 818b5f5 | 2010-12-15 23:14:45 +0000 | [diff] [blame] | 53 | assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) && |
| 54 | "Invalid size"); |
Rafael Espindola | 2df042c | 2010-12-03 02:54:21 +0000 | [diff] [blame] | 55 | char buf[8]; |
| 56 | // FIXME: Endianness assumption. |
| 57 | for (unsigned i = 0; i != Size; ++i) |
| 58 | buf[i] = uint8_t(Value >> (i * 8)); |
| 59 | EmitBytes(StringRef(buf, Size), AddrSpace); |
Chris Lattner | 32ae3fe | 2010-01-19 22:03:38 +0000 | [diff] [blame] | 60 | } |
| 61 | |
Rafael Espindola | 3ff5709 | 2010-11-02 17:22:24 +0000 | [diff] [blame] | 62 | /// EmitULEB128Value - Special case of EmitULEB128Value that avoids the |
| 63 | /// client having to pass in a MCExpr for constant integers. |
| 64 | void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace) { |
Rafael Espindola | 660b5fc | 2010-12-03 01:19:49 +0000 | [diff] [blame] | 65 | SmallString<32> Tmp; |
| 66 | raw_svector_ostream OSE(Tmp); |
| 67 | MCObjectWriter::EncodeULEB128(Value, OSE); |
| 68 | EmitBytes(OSE.str(), AddrSpace); |
Kevin Enderby | c095793 | 2010-09-30 16:52:03 +0000 | [diff] [blame] | 69 | } |
| 70 | |
Rafael Espindola | 3ff5709 | 2010-11-02 17:22:24 +0000 | [diff] [blame] | 71 | /// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the |
| 72 | /// client having to pass in a MCExpr for constant integers. |
| 73 | void MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) { |
Rafael Espindola | 660b5fc | 2010-12-03 01:19:49 +0000 | [diff] [blame] | 74 | SmallString<32> Tmp; |
| 75 | raw_svector_ostream OSE(Tmp); |
| 76 | MCObjectWriter::EncodeSLEB128(Value, OSE); |
| 77 | EmitBytes(OSE.str(), AddrSpace); |
Kevin Enderby | c095793 | 2010-09-30 16:52:03 +0000 | [diff] [blame] | 78 | } |
| 79 | |
Rafael Espindola | 0bbe0b4 | 2010-12-06 17:27:56 +0000 | [diff] [blame] | 80 | void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size, |
| 81 | unsigned AddrSpace) { |
Rafael Espindola | 90a5a0c | 2010-12-22 21:51:29 +0000 | [diff] [blame] | 82 | if (getContext().getAsmInfo().hasAggressiveSymbolFolding()) { |
Rafael Espindola | 0bbe0b4 | 2010-12-06 17:27:56 +0000 | [diff] [blame] | 83 | EmitValue(Value, Size, AddrSpace); |
| 84 | return; |
| 85 | } |
| 86 | MCSymbol *ABS = getContext().CreateTempSymbol(); |
| 87 | EmitAssignment(ABS, Value); |
| 88 | EmitSymbolValue(ABS, Size, AddrSpace); |
| 89 | } |
| 90 | |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 91 | |
| 92 | void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size, |
| 93 | unsigned AddrSpace) { |
| 94 | EmitValueImpl(Value, Size, false, AddrSpace); |
| 95 | } |
| 96 | |
| 97 | void MCStreamer::EmitPCRelValue(const MCExpr *Value, unsigned Size, |
| 98 | unsigned AddrSpace) { |
| 99 | EmitValueImpl(Value, Size, true, AddrSpace); |
| 100 | } |
| 101 | |
| 102 | void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size, |
| 103 | bool isPCRel, unsigned AddrSpace) { |
| 104 | EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size, isPCRel, |
| 105 | AddrSpace); |
| 106 | } |
| 107 | |
Chris Lattner | 6cde3e6 | 2010-03-09 00:39:24 +0000 | [diff] [blame] | 108 | void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size, |
| 109 | unsigned AddrSpace) { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 110 | EmitSymbolValue(Sym, Size, false, AddrSpace); |
| 111 | } |
| 112 | |
| 113 | void MCStreamer::EmitPCRelSymbolValue(const MCSymbol *Sym, unsigned Size, |
| 114 | unsigned AddrSpace) { |
| 115 | EmitSymbolValue(Sym, Size, true, AddrSpace); |
Chris Lattner | 6cde3e6 | 2010-03-09 00:39:24 +0000 | [diff] [blame] | 116 | } |
| 117 | |
Rafael Espindola | 3e03211 | 2010-11-28 15:09:24 +0000 | [diff] [blame] | 118 | void MCStreamer::EmitGPRel32Value(const MCExpr *Value) { |
| 119 | report_fatal_error("unsupported directive in streamer"); |
| 120 | } |
| 121 | |
Chris Lattner | ddf6bdd | 2010-01-19 18:45:47 +0000 | [diff] [blame] | 122 | /// EmitFill - Emit NumBytes bytes worth of the value specified by |
| 123 | /// FillValue. This implements directives such as '.space'. |
Chris Lattner | aaec205 | 2010-01-19 19:46:13 +0000 | [diff] [blame] | 124 | void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue, |
| 125 | unsigned AddrSpace) { |
Chris Lattner | ddf6bdd | 2010-01-19 18:45:47 +0000 | [diff] [blame] | 126 | const MCExpr *E = MCConstantExpr::Create(FillValue, getContext()); |
| 127 | for (uint64_t i = 0, e = NumBytes; i != e; ++i) |
Chris Lattner | aaec205 | 2010-01-19 19:46:13 +0000 | [diff] [blame] | 128 | EmitValue(E, 1, AddrSpace); |
Chris Lattner | ddf6bdd | 2010-01-19 18:45:47 +0000 | [diff] [blame] | 129 | } |
Chris Lattner | 91bead7 | 2010-04-03 21:35:55 +0000 | [diff] [blame] | 130 | |
Rafael Espindola | af6b5808 | 2010-11-16 21:20:32 +0000 | [diff] [blame] | 131 | bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo, |
| 132 | StringRef Filename) { |
| 133 | return getContext().GetDwarfFile(Filename, FileNo) == 0; |
| 134 | } |
| 135 | |
| 136 | void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, |
| 137 | unsigned Column, unsigned Flags, |
| 138 | unsigned Isa, |
Devang Patel | 3f3bf93 | 2011-04-18 20:26:49 +0000 | [diff] [blame] | 139 | unsigned Discriminator, |
| 140 | StringRef FileName) { |
Rafael Espindola | af6b5808 | 2010-11-16 21:20:32 +0000 | [diff] [blame] | 141 | getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa, |
| 142 | Discriminator); |
| 143 | } |
| 144 | |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 145 | MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() { |
| 146 | if (FrameInfos.empty()) |
| 147 | return NULL; |
| 148 | return &FrameInfos.back(); |
| 149 | } |
| 150 | |
| 151 | void MCStreamer::EnsureValidFrame() { |
| 152 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 153 | if (!CurFrame || CurFrame->End) |
| 154 | report_fatal_error("No open frame"); |
| 155 | } |
| 156 | |
Rafael Espindola | ed708f9 | 2011-04-27 15:21:19 +0000 | [diff] [blame^] | 157 | void MCStreamer::EmitLabel(MCSymbol *Symbol) { |
| 158 | assert(!Symbol->isVariable() && "Cannot emit a variable symbol!"); |
| 159 | assert(getCurrentSection() && "Cannot emit before setting section!"); |
| 160 | Symbol->setSection(*getCurrentSection()); |
| 161 | |
| 162 | StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix(); |
| 163 | if (!Symbol->getName().startswith(Prefix)) |
| 164 | LastNonPrivate = Symbol; |
| 165 | } |
| 166 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 167 | void MCStreamer::EmitCFIStartProc() { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 168 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 169 | if (CurFrame && !CurFrame->End) |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 170 | report_fatal_error("Starting a frame before finishing the previous one!"); |
Rafael Espindola | 5bba084 | 2010-12-28 04:15:37 +0000 | [diff] [blame] | 171 | MCDwarfFrameInfo Frame; |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 172 | Frame.Begin = getContext().CreateTempSymbol(); |
Rafael Espindola | ed708f9 | 2011-04-27 15:21:19 +0000 | [diff] [blame^] | 173 | Frame.Function = LastNonPrivate; |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 174 | EmitLabel(Frame.Begin); |
| 175 | FrameInfos.push_back(Frame); |
Rafael Espindola | cdfecc8 | 2010-11-22 14:27:24 +0000 | [diff] [blame] | 176 | } |
| 177 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 178 | void MCStreamer::EmitCFIEndProc() { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 179 | EnsureValidFrame(); |
| 180 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 181 | CurFrame->End = getContext().CreateTempSymbol(); |
| 182 | EmitLabel(CurFrame->End); |
Rafael Espindola | cdfecc8 | 2010-11-22 14:27:24 +0000 | [diff] [blame] | 183 | } |
| 184 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 185 | void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { |
Rafael Espindola | b40a71f | 2010-12-29 01:42:56 +0000 | [diff] [blame] | 186 | EnsureValidFrame(); |
| 187 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 188 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 189 | EmitLabel(Label); |
| 190 | MachineLocation Dest(MachineLocation::VirtualFP); |
| 191 | MachineLocation Source(Register, -Offset); |
| 192 | MCCFIInstruction Instruction(Label, Dest, Source); |
| 193 | CurFrame->Instructions.push_back(Instruction); |
Rafael Espindola | b40a71f | 2010-12-29 01:42:56 +0000 | [diff] [blame] | 194 | } |
| 195 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 196 | void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 197 | EnsureValidFrame(); |
Rafael Espindola | 5bba084 | 2010-12-28 04:15:37 +0000 | [diff] [blame] | 198 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 199 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 200 | EmitLabel(Label); |
| 201 | MachineLocation Dest(MachineLocation::VirtualFP); |
| 202 | MachineLocation Source(MachineLocation::VirtualFP, -Offset); |
Rafael Espindola | fe024d0 | 2010-12-28 18:36:23 +0000 | [diff] [blame] | 203 | MCCFIInstruction Instruction(Label, Dest, Source); |
| 204 | CurFrame->Instructions.push_back(Instruction); |
Rafael Espindola | cdfecc8 | 2010-11-22 14:27:24 +0000 | [diff] [blame] | 205 | } |
| 206 | |
Rafael Espindola | 5d7dcd3 | 2011-04-12 18:53:30 +0000 | [diff] [blame] | 207 | void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) { |
| 208 | EnsureValidFrame(); |
| 209 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 210 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 211 | EmitLabel(Label); |
| 212 | MachineLocation Dest(MachineLocation::VirtualFP); |
| 213 | MachineLocation Source(MachineLocation::VirtualFP, Adjustment); |
| 214 | MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); |
| 215 | CurFrame->Instructions.push_back(Instruction); |
| 216 | } |
| 217 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 218 | void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 219 | EnsureValidFrame(); |
Rafael Espindola | b4601bd | 2010-12-29 00:26:06 +0000 | [diff] [blame] | 220 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 221 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 222 | EmitLabel(Label); |
| 223 | MachineLocation Dest(Register); |
| 224 | MachineLocation Source(MachineLocation::VirtualFP); |
| 225 | MCCFIInstruction Instruction(Label, Dest, Source); |
| 226 | CurFrame->Instructions.push_back(Instruction); |
Rafael Espindola | cdfecc8 | 2010-11-22 14:27:24 +0000 | [diff] [blame] | 227 | } |
| 228 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 229 | void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 230 | EnsureValidFrame(); |
Rafael Espindola | b790a17 | 2010-12-29 00:09:59 +0000 | [diff] [blame] | 231 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 232 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 233 | EmitLabel(Label); |
| 234 | MachineLocation Dest(Register, Offset); |
| 235 | MachineLocation Source(Register, Offset); |
| 236 | MCCFIInstruction Instruction(Label, Dest, Source); |
| 237 | CurFrame->Instructions.push_back(Instruction); |
Rafael Espindola | cdfecc8 | 2010-11-22 14:27:24 +0000 | [diff] [blame] | 238 | } |
| 239 | |
Rafael Espindola | 25f492e | 2011-04-12 16:12:03 +0000 | [diff] [blame] | 240 | void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { |
| 241 | EnsureValidFrame(); |
| 242 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 243 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 244 | EmitLabel(Label); |
| 245 | MachineLocation Dest(Register, Offset); |
| 246 | MachineLocation Source(Register, Offset); |
| 247 | MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); |
| 248 | CurFrame->Instructions.push_back(Instruction); |
| 249 | } |
| 250 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 251 | void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym, |
Rafael Espindola | 3a83c40 | 2010-12-27 00:36:05 +0000 | [diff] [blame] | 252 | unsigned Encoding) { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 253 | EnsureValidFrame(); |
| 254 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 255 | CurFrame->Personality = Sym; |
Rafael Espindola | 3a83c40 | 2010-12-27 00:36:05 +0000 | [diff] [blame] | 256 | CurFrame->PersonalityEncoding = Encoding; |
Rafael Espindola | cdfecc8 | 2010-11-22 14:27:24 +0000 | [diff] [blame] | 257 | } |
| 258 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 259 | void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) { |
Rafael Espindola | 89b9372 | 2010-12-10 07:39:47 +0000 | [diff] [blame] | 260 | EnsureValidFrame(); |
| 261 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 262 | CurFrame->Lsda = Sym; |
Rafael Espindola | bdc3167 | 2010-12-27 15:56:22 +0000 | [diff] [blame] | 263 | CurFrame->LsdaEncoding = Encoding; |
Rafael Espindola | cdfecc8 | 2010-11-22 14:27:24 +0000 | [diff] [blame] | 264 | } |
| 265 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 266 | void MCStreamer::EmitCFIRememberState() { |
Rafael Espindola | fe024d0 | 2010-12-28 18:36:23 +0000 | [diff] [blame] | 267 | EnsureValidFrame(); |
| 268 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 269 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 270 | EmitLabel(Label); |
| 271 | MCCFIInstruction Instruction(MCCFIInstruction::Remember, Label); |
| 272 | CurFrame->Instructions.push_back(Instruction); |
Rafael Espindola | fe024d0 | 2010-12-28 18:36:23 +0000 | [diff] [blame] | 273 | } |
| 274 | |
Rafael Espindola | 066c2f4 | 2011-04-12 23:59:07 +0000 | [diff] [blame] | 275 | void MCStreamer::EmitCFIRestoreState() { |
Rafael Espindola | fe024d0 | 2010-12-28 18:36:23 +0000 | [diff] [blame] | 276 | // FIXME: Error if there is no matching cfi_remember_state. |
| 277 | EnsureValidFrame(); |
| 278 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 279 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 280 | EmitLabel(Label); |
| 281 | MCCFIInstruction Instruction(MCCFIInstruction::Restore, Label); |
| 282 | CurFrame->Instructions.push_back(Instruction); |
Rafael Espindola | fe024d0 | 2010-12-28 18:36:23 +0000 | [diff] [blame] | 283 | } |
| 284 | |
Rafael Espindola | c575439 | 2011-04-12 15:31:05 +0000 | [diff] [blame] | 285 | void MCStreamer::EmitCFISameValue(int64_t Register) { |
| 286 | EnsureValidFrame(); |
| 287 | MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); |
| 288 | MCSymbol *Label = getContext().CreateTempSymbol(); |
| 289 | EmitLabel(Label); |
| 290 | MCCFIInstruction Instruction(MCCFIInstruction::SameValue, Label, Register); |
| 291 | CurFrame->Instructions.push_back(Instruction); |
| 292 | } |
| 293 | |
Anton Korobeynikov | b5e16af | 2011-03-05 18:43:15 +0000 | [diff] [blame] | 294 | void MCStreamer::EmitFnStart() { |
| 295 | errs() << "Not implemented yet\n"; |
| 296 | abort(); |
| 297 | } |
| 298 | |
| 299 | void MCStreamer::EmitFnEnd() { |
| 300 | errs() << "Not implemented yet\n"; |
| 301 | abort(); |
| 302 | } |
| 303 | |
| 304 | void MCStreamer::EmitCantUnwind() { |
| 305 | errs() << "Not implemented yet\n"; |
| 306 | abort(); |
| 307 | } |
| 308 | |
| 309 | void MCStreamer::EmitHandlerData() { |
| 310 | errs() << "Not implemented yet\n"; |
| 311 | abort(); |
| 312 | } |
| 313 | |
| 314 | void MCStreamer::EmitPersonality(const MCSymbol *Personality) { |
| 315 | errs() << "Not implemented yet\n"; |
| 316 | abort(); |
| 317 | } |
| 318 | |
Anton Korobeynikov | 57caad7 | 2011-03-05 18:43:32 +0000 | [diff] [blame] | 319 | void MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { |
| 320 | errs() << "Not implemented yet\n"; |
| 321 | abort(); |
| 322 | } |
| 323 | |
| 324 | void MCStreamer::EmitPad(int64_t Offset) { |
| 325 | errs() << "Not implemented yet\n"; |
| 326 | abort(); |
| 327 | } |
| 328 | |
| 329 | void MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) { |
| 330 | errs() << "Not implemented yet\n"; |
| 331 | abort(); |
| 332 | } |
| 333 | |
Matt Fleming | ab3b365 | 2010-05-20 19:45:09 +0000 | [diff] [blame] | 334 | /// EmitRawText - If this file is backed by an assembly streamer, this dumps |
Chris Lattner | 91bead7 | 2010-04-03 21:35:55 +0000 | [diff] [blame] | 335 | /// the specified string in the output .s file. This capability is |
| 336 | /// indicated by the hasRawTextSupport() predicate. |
| 337 | void MCStreamer::EmitRawText(StringRef String) { |
| 338 | errs() << "EmitRawText called on an MCStreamer that doesn't support it, " |
| 339 | " something must not be fully mc'ized\n"; |
| 340 | abort(); |
| 341 | } |
Chris Lattner | 58bc4dd | 2010-04-03 22:12:35 +0000 | [diff] [blame] | 342 | |
| 343 | void MCStreamer::EmitRawText(const Twine &T) { |
| 344 | SmallString<128> Str; |
| 345 | T.toVector(Str); |
| 346 | EmitRawText(Str.str()); |
| 347 | } |