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MC: Update MCAssembler to use MCSymbol, NFC

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Use `MCSymbol` over `MCSymbolData` where both are needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237803 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-05-20 16:02:11 +00:00
parent 10054fb7b0
commit 20cf3f41e7
4 changed files with 19 additions and 22 deletions
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27
lib/MC/MCAssembler.cpp
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@ -120,12 +120,13 @@ uint64_t MCAsmLayout::getFragmentOffset(const MCFragment *F) const {
}
// Simple getSymbolOffset helper for the non-varibale case.
static bool getLabelOffset(const MCAsmLayout &Layout, const MCSymbolData &SD,
static bool getLabelOffset(const MCAsmLayout &Layout, const MCSymbol &S,
bool ReportError, uint64_t &Val) {
const MCSymbolData &SD = S.getData();
if (!SD.getFragment()) {
if (ReportError)
report_fatal_error("unable to evaluate offset to undefined symbol '" +
SD.getSymbol().getName() + "'");
S.getName() + "'");
return false;
}
Val = Layout.getFragmentOffset(SD.getFragment()) + SD.getOffset();
@ -135,7 +136,7 @@ static bool getLabelOffset(const MCAsmLayout &Layout, const MCSymbolData &SD,
static bool getSymbolOffsetImpl(const MCAsmLayout &Layout, const MCSymbol &S,
bool ReportError, uint64_t &Val) {
if (!S.isVariable())
return getLabelOffset(Layout, S.getData(), ReportError, Val);
return getLabelOffset(Layout, S, ReportError, Val);
// If SD is a variable, evaluate it.
MCValue Target;
@ -145,13 +146,10 @@ static bool getSymbolOffsetImpl(const MCAsmLayout &Layout, const MCSymbol &S,
uint64_t Offset = Target.getConstant();
const MCAssembler &Asm = Layout.getAssembler();
const MCSymbolRefExpr *A = Target.getSymA();
if (A) {
uint64_t ValA;
if (!getLabelOffset(Layout, Asm.getSymbolData(A->getSymbol()), ReportError,
ValA))
if (!getLabelOffset(Layout, A->getSymbol(), ReportError, ValA))
return false;
Offset += ValA;
}
@ -159,8 +157,7 @@ static bool getSymbolOffsetImpl(const MCAsmLayout &Layout, const MCSymbol &S,
const MCSymbolRefExpr *B = Target.getSymB();
if (B) {
uint64_t ValB;
if (!getLabelOffset(Layout, Asm.getSymbolData(B->getSymbol()), ReportError,
ValB))
if (!getLabelOffset(Layout, B->getSymbol(), ReportError, ValB))
return false;
Offset -= ValB;
}
@ -457,23 +454,23 @@ bool MCAssembler::isSymbolLinkerVisible(const MCSymbol &Symbol) const {
return false;
}
const MCSymbol *MCAssembler::getAtom(const MCSymbolData *SD) const {
const MCSymbol *MCAssembler::getAtom(const MCSymbol &S) const {
// Linker visible symbols define atoms.
if (isSymbolLinkerVisible(SD->getSymbol()))
return &SD->getSymbol();
if (isSymbolLinkerVisible(S))
return &S;
// Absolute and undefined symbols have no defining atom.
if (!SD->getFragment())
if (!S.getData().getFragment())
return nullptr;
// Non-linker visible symbols in sections which can't be atomized have no
// defining atom.
if (!getContext().getAsmInfo()->isSectionAtomizableBySymbols(
SD->getFragment()->getParent()->getSection()))
S.getData().getFragment()->getParent()->getSection()))
return nullptr;
// Otherwise, return the atom for the containing fragment.
return SD->getFragment()->getAtom();
return S.getData().getFragment()->getAtom();
}
bool MCAssembler::evaluateFixup(const MCAsmLayout &Layout,