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Reduce nesting.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120189 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-11-27 05:18:48 +00:00
parent f52788f4e6
commit 7976b88d9f
1 changed files with 26 additions and 20 deletions
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46
lib/MC/MachObjectWriter.cpp
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@ -1050,29 +1050,35 @@ public:
const MCValue Target,
bool IsPCRel,
const MCFragment *DF) const {
// If we are using scattered symbols, determine whether this value is
// actually resolved; scattering may cause atoms to move.
if (Asm.getBackend().hasScatteredSymbols()) {
if (Asm.getBackend().hasReliableSymbolDifference()) {
// If this is a PCrel relocation, find the base atom (identified by its
// symbol) that the fixup value is relative to.
const MCSymbolData *BaseSymbol = 0;
if (IsPCRel) {
BaseSymbol = DF->getAtom();
if (!BaseSymbol)
return false;
}
// If we aren't using scattered symbols, the fixup is fully resolved.
if (!Asm.getBackend().hasScatteredSymbols())
return true;
return isScatteredFixupFullyResolved(Asm, Target, BaseSymbol);
} else {
const MCSection *BaseSection = 0;
if (IsPCRel)
BaseSection = &DF->getParent()->getSection();
// Otherwise, determine whether this value is actually resolved; scattering
// may cause atoms to move.
return isScatteredFixupFullyResolvedSimple(Asm, Target, BaseSection);
}
// Check if we are using the "simple" resolution algorithm (e.g.,
// i386).
if (!Asm.getBackend().hasReliableSymbolDifference()) {
const MCSection *BaseSection = 0;
if (IsPCRel)
BaseSection = &DF->getParent()->getSection();
return isScatteredFixupFullyResolvedSimple(Asm, Target, BaseSection);
}
return true;
// Otherwise, compute the proper answer as reliably as possible.
// If this is a PCrel relocation, find the base atom (identified by its
// symbol) that the fixup value is relative to.
const MCSymbolData *BaseSymbol = 0;
if (IsPCRel) {
BaseSymbol = DF->getAtom();
if (!BaseSymbol)
return false;
}
return isScatteredFixupFullyResolved(Asm, Target, BaseSymbol);
}
void WriteObject(MCAssembler &Asm, const MCAsmLayout &Layout) {