mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-04-09 16:45:03 +00:00
Don't print comments to an object streamer :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215689 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
746b906246
commit
906ae95a16
@ -971,16 +971,14 @@ static unsigned getSizeForEncoding(MCStreamer &streamer,
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}
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}
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static void EmitFDESymbol(MCStreamer &streamer, const MCSymbol &symbol,
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unsigned symbolEncoding, bool isEH,
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const char *comment = nullptr) {
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static void emitFDESymbol(MCObjectStreamer &streamer, const MCSymbol &symbol,
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unsigned symbolEncoding, bool isEH) {
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MCContext &context = streamer.getContext();
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const MCAsmInfo *asmInfo = context.getAsmInfo();
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const MCExpr *v = asmInfo->getExprForFDESymbol(&symbol,
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symbolEncoding,
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streamer);
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unsigned size = getSizeForEncoding(streamer, symbolEncoding);
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if (streamer.isVerboseAsm() && comment) streamer.AddComment(comment);
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if (asmInfo->doDwarfFDESymbolsUseAbsDiff() && isEH)
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streamer.EmitAbsValue(v, size);
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else
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@ -1010,8 +1008,8 @@ namespace {
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void setSectionStart(const MCSymbol *Label) { SectionStart = Label; }
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/// EmitCompactUnwind - Emit the unwind information in a compact way.
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void EmitCompactUnwind(MCStreamer &streamer,
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/// Emit the unwind information in a compact way.
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void EmitCompactUnwind(MCObjectStreamer &streamer,
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const MCDwarfFrameInfo &frame);
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const MCSymbol &EmitCIE(MCObjectStreamer &streamer,
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@ -1033,65 +1031,18 @@ namespace {
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} // end anonymous namespace
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static void EmitEncodingByte(MCStreamer &Streamer, unsigned Encoding,
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StringRef Prefix) {
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if (Streamer.isVerboseAsm()) {
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const char *EncStr;
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switch (Encoding) {
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default: EncStr = "<unknown encoding>"; break;
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case dwarf::DW_EH_PE_absptr: EncStr = "absptr"; break;
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case dwarf::DW_EH_PE_omit: EncStr = "omit"; break;
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case dwarf::DW_EH_PE_pcrel: EncStr = "pcrel"; break;
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case dwarf::DW_EH_PE_udata4: EncStr = "udata4"; break;
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case dwarf::DW_EH_PE_udata8: EncStr = "udata8"; break;
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case dwarf::DW_EH_PE_sdata4: EncStr = "sdata4"; break;
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case dwarf::DW_EH_PE_sdata8: EncStr = "sdata8"; break;
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case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata4:
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EncStr = "pcrel udata4";
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break;
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case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4:
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EncStr = "pcrel sdata4";
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break;
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case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8:
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EncStr = "pcrel udata8";
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break;
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case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8:
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EncStr = "screl sdata8";
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break;
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case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata4:
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EncStr = "indirect pcrel udata4";
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break;
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case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata4:
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EncStr = "indirect pcrel sdata4";
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break;
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case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata8:
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EncStr = "indirect pcrel udata8";
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break;
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case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata8:
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EncStr = "indirect pcrel sdata8";
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break;
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}
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Streamer.AddComment(Twine(Prefix) + " = " + EncStr);
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}
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static void emitEncodingByte(MCObjectStreamer &Streamer, unsigned Encoding) {
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Streamer.EmitIntValue(Encoding, 1);
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}
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void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer,
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const MCCFIInstruction &Instr) {
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int dataAlignmentFactor = getDataAlignmentFactor(Streamer);
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bool VerboseAsm = Streamer.isVerboseAsm();
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switch (Instr.getOperation()) {
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case MCCFIInstruction::OpRegister: {
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unsigned Reg1 = Instr.getRegister();
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unsigned Reg2 = Instr.getRegister2();
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if (VerboseAsm) {
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Streamer.AddComment("DW_CFA_register");
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Streamer.AddComment(Twine("Reg1 ") + Twine(Reg1));
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Streamer.AddComment(Twine("Reg2 ") + Twine(Reg2));
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}
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Streamer.EmitIntValue(dwarf::DW_CFA_register, 1);
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Streamer.EmitULEB128IntValue(Reg1);
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Streamer.EmitULEB128IntValue(Reg2);
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@ -1103,10 +1054,6 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer,
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}
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case MCCFIInstruction::OpUndefined: {
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unsigned Reg = Instr.getRegister();
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if (VerboseAsm) {
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Streamer.AddComment("DW_CFA_undefined");
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Streamer.AddComment(Twine("Reg ") + Twine(Reg));
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}
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Streamer.EmitIntValue(dwarf::DW_CFA_undefined, 1);
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Streamer.EmitULEB128IntValue(Reg);
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return;
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@ -1116,8 +1063,6 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer,
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const bool IsRelative =
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Instr.getOperation() == MCCFIInstruction::OpAdjustCfaOffset;
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if (VerboseAsm)
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Streamer.AddComment("DW_CFA_def_cfa_offset");
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Streamer.EmitIntValue(dwarf::DW_CFA_def_cfa_offset, 1);
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if (IsRelative)
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@ -1125,37 +1070,21 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer,
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else
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CFAOffset = -Instr.getOffset();
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if (VerboseAsm)
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Streamer.AddComment(Twine("Offset " + Twine(CFAOffset)));
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Streamer.EmitULEB128IntValue(CFAOffset);
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return;
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}
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case MCCFIInstruction::OpDefCfa: {
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if (VerboseAsm)
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Streamer.AddComment("DW_CFA_def_cfa");
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Streamer.EmitIntValue(dwarf::DW_CFA_def_cfa, 1);
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if (VerboseAsm)
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Streamer.AddComment(Twine("Reg ") + Twine(Instr.getRegister()));
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Streamer.EmitULEB128IntValue(Instr.getRegister());
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CFAOffset = -Instr.getOffset();
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if (VerboseAsm)
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Streamer.AddComment(Twine("Offset " + Twine(CFAOffset)));
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Streamer.EmitULEB128IntValue(CFAOffset);
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return;
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}
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case MCCFIInstruction::OpDefCfaRegister: {
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if (VerboseAsm)
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Streamer.AddComment("DW_CFA_def_cfa_register");
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Streamer.EmitIntValue(dwarf::DW_CFA_def_cfa_register, 1);
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if (VerboseAsm)
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Streamer.AddComment(Twine("Reg ") + Twine(Instr.getRegister()));
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Streamer.EmitULEB128IntValue(Instr.getRegister());
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return;
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@ -1173,63 +1102,44 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer,
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Offset = Offset / dataAlignmentFactor;
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if (Offset < 0) {
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if (VerboseAsm) Streamer.AddComment("DW_CFA_offset_extended_sf");
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Streamer.EmitIntValue(dwarf::DW_CFA_offset_extended_sf, 1);
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if (VerboseAsm) Streamer.AddComment(Twine("Reg ") + Twine(Reg));
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Streamer.EmitULEB128IntValue(Reg);
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if (VerboseAsm) Streamer.AddComment(Twine("Offset ") + Twine(Offset));
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Streamer.EmitSLEB128IntValue(Offset);
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} else if (Reg < 64) {
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if (VerboseAsm) Streamer.AddComment(Twine("DW_CFA_offset + Reg(") +
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Twine(Reg) + ")");
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Streamer.EmitIntValue(dwarf::DW_CFA_offset + Reg, 1);
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if (VerboseAsm) Streamer.AddComment(Twine("Offset ") + Twine(Offset));
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Streamer.EmitULEB128IntValue(Offset);
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} else {
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if (VerboseAsm) Streamer.AddComment("DW_CFA_offset_extended");
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Streamer.EmitIntValue(dwarf::DW_CFA_offset_extended, 1);
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if (VerboseAsm) Streamer.AddComment(Twine("Reg ") + Twine(Reg));
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Streamer.EmitULEB128IntValue(Reg);
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if (VerboseAsm) Streamer.AddComment(Twine("Offset ") + Twine(Offset));
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Streamer.EmitULEB128IntValue(Offset);
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}
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return;
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}
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case MCCFIInstruction::OpRememberState:
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if (VerboseAsm) Streamer.AddComment("DW_CFA_remember_state");
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Streamer.EmitIntValue(dwarf::DW_CFA_remember_state, 1);
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return;
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case MCCFIInstruction::OpRestoreState:
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if (VerboseAsm) Streamer.AddComment("DW_CFA_restore_state");
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Streamer.EmitIntValue(dwarf::DW_CFA_restore_state, 1);
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return;
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case MCCFIInstruction::OpSameValue: {
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unsigned Reg = Instr.getRegister();
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if (VerboseAsm) Streamer.AddComment("DW_CFA_same_value");
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Streamer.EmitIntValue(dwarf::DW_CFA_same_value, 1);
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if (VerboseAsm) Streamer.AddComment(Twine("Reg ") + Twine(Reg));
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Streamer.EmitULEB128IntValue(Reg);
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return;
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}
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case MCCFIInstruction::OpRestore: {
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unsigned Reg = Instr.getRegister();
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if (VerboseAsm) {
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Streamer.AddComment("DW_CFA_restore");
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Streamer.AddComment(Twine("Reg ") + Twine(Reg));
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}
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Streamer.EmitIntValue(dwarf::DW_CFA_restore | Reg, 1);
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return;
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}
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case MCCFIInstruction::OpEscape:
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if (VerboseAsm) Streamer.AddComment("Escape bytes");
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Streamer.EmitBytes(Instr.getValues());
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return;
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}
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llvm_unreachable("Unhandled case in switch");
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}
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/// EmitFrameMoves - Emit frame instructions to describe the layout of the
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/// frame.
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/// Emit frame instructions to describe the layout of the frame.
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void FrameEmitterImpl::EmitCFIInstructions(MCObjectStreamer &streamer,
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ArrayRef<MCCFIInstruction> Instrs,
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MCSymbol *BaseLabel) {
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@ -1243,7 +1153,6 @@ void FrameEmitterImpl::EmitCFIInstructions(MCObjectStreamer &streamer,
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if (BaseLabel && Label) {
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MCSymbol *ThisSym = Label;
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if (ThisSym != BaseLabel) {
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if (streamer.isVerboseAsm()) streamer.AddComment("DW_CFA_advance_loc4");
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streamer.EmitDwarfAdvanceFrameAddr(BaseLabel, ThisSym);
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BaseLabel = ThisSym;
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}
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@ -1253,12 +1162,11 @@ void FrameEmitterImpl::EmitCFIInstructions(MCObjectStreamer &streamer,
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}
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}
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/// EmitCompactUnwind - Emit the unwind information in a compact way.
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void FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer,
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/// Emit the unwind information in a compact way.
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void FrameEmitterImpl::EmitCompactUnwind(MCObjectStreamer &Streamer,
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const MCDwarfFrameInfo &Frame) {
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MCContext &Context = Streamer.getContext();
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const MCObjectFileInfo *MOFI = Context.getObjectFileInfo();
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bool VerboseAsm = Streamer.isVerboseAsm();
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// range-start range-length compact-unwind-enc personality-func lsda
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// _foo LfooEnd-_foo 0x00000023 0 0
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@ -1293,24 +1201,19 @@ void FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer,
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// Range Start
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unsigned FDEEncoding = MOFI->getFDEEncoding();
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unsigned Size = getSizeForEncoding(Streamer, FDEEncoding);
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if (VerboseAsm) Streamer.AddComment("Range Start");
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Streamer.EmitSymbolValue(Frame.Begin, Size);
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// Range Length
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const MCExpr *Range = MakeStartMinusEndExpr(Streamer, *Frame.Begin,
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*Frame.End, 0);
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if (VerboseAsm) Streamer.AddComment("Range Length");
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Streamer.EmitAbsValue(Range, 4);
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// Compact Encoding
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Size = getSizeForEncoding(Streamer, dwarf::DW_EH_PE_udata4);
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if (VerboseAsm) Streamer.AddComment("Compact Unwind Encoding: 0x" +
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Twine::utohexstr(Encoding));
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Streamer.EmitIntValue(Encoding, Size);
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// Personality Function
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Size = getSizeForEncoding(Streamer, dwarf::DW_EH_PE_absptr);
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if (VerboseAsm) Streamer.AddComment("Personality Function");
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if (!DwarfEHFrameOnly && Frame.Personality)
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Streamer.EmitSymbolValue(Frame.Personality, Size);
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else
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@ -1318,7 +1221,6 @@ void FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer,
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// LSDA
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Size = getSizeForEncoding(Streamer, Frame.LsdaEncoding);
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if (VerboseAsm) Streamer.AddComment("LSDA");
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if (!DwarfEHFrameOnly && Frame.Lsda)
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Streamer.EmitSymbolValue(Frame.Lsda, Size);
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else
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@ -1335,7 +1237,6 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer,
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MCContext &context = streamer.getContext();
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const MCRegisterInfo *MRI = context.getRegisterInfo();
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const MCObjectFileInfo *MOFI = context.getObjectFileInfo();
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bool verboseAsm = streamer.isVerboseAsm();
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MCSymbol *sectionStart = context.CreateTempSymbol();
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streamer.EmitLabel(sectionStart);
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@ -1346,16 +1247,13 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer,
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// Length
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const MCExpr *Length = MakeStartMinusEndExpr(streamer, *sectionStart,
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*sectionEnd, 4);
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if (verboseAsm) streamer.AddComment("CIE Length");
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streamer.EmitAbsValue(Length, 4);
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// CIE ID
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unsigned CIE_ID = IsEH ? 0 : -1;
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if (verboseAsm) streamer.AddComment("CIE ID Tag");
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streamer.EmitIntValue(CIE_ID, 4);
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// Version
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if (verboseAsm) streamer.AddComment("DW_CIE_VERSION");
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// For DWARF2, we use CIE version 1
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// For DWARF3+, we use CIE version 3
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uint8_t CIEVersion = context.getDwarfVersion() <= 2 ? 1 : 3;
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@ -1364,7 +1262,6 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer,
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// Augmentation String
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SmallString<8> Augmentation;
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if (IsEH) {
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if (verboseAsm) streamer.AddComment("CIE Augmentation");
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Augmentation += "z";
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if (personality)
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Augmentation += "P";
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@ -1378,15 +1275,12 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer,
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streamer.EmitIntValue(0, 1);
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// Code Alignment Factor
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if (verboseAsm) streamer.AddComment("CIE Code Alignment Factor");
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streamer.EmitULEB128IntValue(context.getAsmInfo()->getMinInstAlignment());
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// Data Alignment Factor
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if (verboseAsm) streamer.AddComment("CIE Data Alignment Factor");
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streamer.EmitSLEB128IntValue(getDataAlignmentFactor(streamer));
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// Return Address Register
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if (verboseAsm) streamer.AddComment("CIE Return Address Column");
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if (CIEVersion == 1) {
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assert(MRI->getRARegister() <= 255 &&
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"DWARF 2 encodes return_address_register in one byte");
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@ -1411,24 +1305,21 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer,
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// Encoding of the FDE pointers
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augmentationLength += 1;
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if (verboseAsm) streamer.AddComment("Augmentation Size");
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streamer.EmitULEB128IntValue(augmentationLength);
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// Augmentation Data (optional)
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if (personality) {
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// Personality Encoding
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EmitEncodingByte(streamer, personalityEncoding,
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"Personality Encoding");
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emitEncodingByte(streamer, personalityEncoding);
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// Personality
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if (verboseAsm) streamer.AddComment("Personality");
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EmitPersonality(streamer, *personality, personalityEncoding);
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}
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if (lsda)
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EmitEncodingByte(streamer, lsdaEncoding, "LSDA Encoding");
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emitEncodingByte(streamer, lsdaEncoding);
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// Encoding of the FDE pointers
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EmitEncodingByte(streamer, MOFI->getFDEEncoding(), "FDE Encoding");
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emitEncodingByte(streamer, MOFI->getFDEEncoding());
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}
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// Initial Instructions
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@ -1454,11 +1345,9 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer,
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MCSymbol *fdeStart = context.CreateTempSymbol();
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MCSymbol *fdeEnd = context.CreateTempSymbol();
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const MCObjectFileInfo *MOFI = context.getObjectFileInfo();
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bool verboseAsm = streamer.isVerboseAsm();
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// Length
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const MCExpr *Length = MakeStartMinusEndExpr(streamer, *fdeStart, *fdeEnd, 0);
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if (verboseAsm) streamer.AddComment("FDE Length");
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streamer.EmitAbsValue(Length, 4);
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streamer.EmitLabel(fdeStart);
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@ -1468,7 +1357,6 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer,
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if (IsEH) {
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const MCExpr *offset = MakeStartMinusEndExpr(streamer, cieStart, *fdeStart,
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0);
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if (verboseAsm) streamer.AddComment("FDE CIE Offset");
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streamer.EmitAbsValue(offset, 4);
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} else if (!asmInfo->doesDwarfUseRelocationsAcrossSections()) {
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const MCExpr *offset = MakeStartMinusEndExpr(streamer, *SectionStart,
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@ -1482,12 +1370,11 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer,
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unsigned PCEncoding =
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IsEH ? MOFI->getFDEEncoding() : (unsigned)dwarf::DW_EH_PE_absptr;
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unsigned PCSize = getSizeForEncoding(streamer, PCEncoding);
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EmitFDESymbol(streamer, *frame.Begin, PCEncoding, IsEH, "FDE initial location");
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emitFDESymbol(streamer, *frame.Begin, PCEncoding, IsEH);
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// PC Range
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const MCExpr *Range = MakeStartMinusEndExpr(streamer, *frame.Begin,
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*frame.End, 0);
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||||
if (verboseAsm) streamer.AddComment("FDE address range");
|
||||
streamer.EmitAbsValue(Range, PCSize);
|
||||
|
||||
if (IsEH) {
|
||||
@ -1497,13 +1384,11 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer,
|
||||
if (frame.Lsda)
|
||||
augmentationLength += getSizeForEncoding(streamer, frame.LsdaEncoding);
|
||||
|
||||
if (verboseAsm) streamer.AddComment("Augmentation size");
|
||||
streamer.EmitULEB128IntValue(augmentationLength);
|
||||
|
||||
// Augmentation Data
|
||||
if (frame.Lsda)
|
||||
EmitFDESymbol(streamer, *frame.Lsda, frame.LsdaEncoding, true,
|
||||
"Language Specific Data Area");
|
||||
emitFDESymbol(streamer, *frame.Lsda, frame.LsdaEncoding, true);
|
||||
}
|
||||
|
||||
// Call Frame Instructions
|
||||
|
Loading…
x
Reference in New Issue
Block a user