/// finalizeDwarfSections - Emit end symbols for each non-empty code section.
/// Also remove empty sections from SectionStartEndSyms, to avoid generating
/// useless debug info for them.
void MCContext::finalizeDwarfSections(MCStreamer &MCOS) {
MCContext &context = MCOS.getContext();
auto sec = SectionStartEndSyms.begin();
while (sec != SectionStartEndSyms.end()) {
assert(sec->second.first && "Start symbol must be set by now");
MCOS.SwitchSection(sec->first);
if (MCOS.mayHaveInstructions()) {
MCSymbol *SectionEndSym = context.CreateTempSymbol();
MCOS.EmitLabel(SectionEndSym);
sec->second.second = SectionEndSym;
++sec;
} else {
MapVector<const MCSection *, std::pair<MCSymbol *, MCSymbol *> >::iterator
to_erase = sec;
sec = SectionStartEndSyms.erase(to_erase);
}
}
}
/// Remove empty sections from SectionStartEndSyms, to avoid generating
/// useless debug info for them.
void MCContext::finalizeDwarfSections(MCStreamer &MCOS) {
SectionsForRanges.remove_if(
[&](MCSection *Sec) { return !MCOS.mayHaveInstructions(*Sec); });
}
