Move AliasedSymbol to MachObjectWriter.
It was only used by MachO.
Part of pr19627.
llvm-svn: 235185
diff --git a/llvm/lib/MC/MachObjectWriter.cpp b/llvm/lib/MC/MachObjectWriter.cpp
index f04d0ed..97143a9 100644
--- a/llvm/lib/MC/MachObjectWriter.cpp
+++ b/llvm/lib/MC/MachObjectWriter.cpp
@@ -321,11 +321,23 @@
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 @@
// 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();