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Move AliasedSymbol to MachObjectWriter.

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It was only used by MachO.
Part of pr19627.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235185 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-04-17 12:28:43 +00:00
parent dc71d8a7b9
commit db244041cd
5 changed files with 18 additions and 21 deletions
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16
lib/MC/MachObjectWriter.cpp
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@ -321,11 +321,23 @@ MachObjectWriter::findSymbolData(const MCSymbol &Sym) {
return nullptr;
}
const MCSymbol &MachObjectWriter::findAliasedSymbol(const MCSymbol &Sym) const {
const MCSymbol *S = &Sym;
while (S->isVariable()) {
const MCExpr *Value = S->getVariableValue();
const auto *Ref = dyn_cast<MCSymbolRefExpr>(Value);
if (!Ref)
return *S;
S = &Ref->getSymbol();
}
return *S;
}
void MachObjectWriter::WriteNlist(MachSymbolData &MSD,
const MCAsmLayout &Layout) {
MCSymbolData &Data = *MSD.SymbolData;
const MCSymbol *Symbol = &Data.getSymbol();
const MCSymbol *AliasedSymbol = &Symbol->AliasedSymbol();
const MCSymbol *AliasedSymbol = &findAliasedSymbol(*Symbol);
uint8_t SectionIndex = MSD.SectionIndex;
uint8_t Type = 0;
uint16_t Flags = Data.getFlags();
@ -674,7 +686,7 @@ IsSymbolRefDifferenceFullyResolvedImpl(const MCAssembler &Asm,
// addr(atom(A)) - addr(atom(B)) == 0.
const MCSymbolData *A_Base = nullptr, *B_Base = nullptr;
const MCSymbol &SA = DataA.getSymbol().AliasedSymbol();
const MCSymbol &SA = findAliasedSymbol(DataA.getSymbol());
const MCSection &SecA = SA.getSection();
const MCSection &SecB = FB.getParent()->getSection();