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MC: Add MCAssembler::addFixup, which enforces that fixups are added in order.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98379 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-03-12 21:00:38 +00:00
parent b87c305fa7
commit 8315a357e4
2 changed files with 11 additions and 6 deletions
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7
include/llvm/MC/MCAssembler.h
View File

@ -162,6 +162,13 @@ public:
/// @name Fixup Access
/// @{
void addFixup(MCAsmFixup Fixup) {
// Enforce invariant that fixups are in offset order.
assert(Fixups.empty() || Fixup.Offset > Fixups.back().Offset &&
"Fixups must be added in order!");
Fixups.push_back(Fixup);
}
std::vector<MCAsmFixup> &getFixups() { return Fixups; }
const std::vector<MCAsmFixup> &getFixups() const { return Fixups; }

10
lib/MC/MCMachOStreamer.cpp
View File

@ -327,9 +327,8 @@ void MCMachOStreamer::EmitValue(const MCExpr *Value, unsigned Size,
for (unsigned i = 0; i != Size; ++i)
DF->getContents().push_back(uint8_t(AbsValue >> (i * 8)));
} else {
DF->getFixups().push_back(MCAsmFixup(DF->getContents().size(),
*AddValueSymbols(Value),
MCFixup::getKindForSize(Size)));
DF->addFixup(MCAsmFixup(DF->getContents().size(), *AddValueSymbols(Value),
MCFixup::getKindForSize(Size)));
DF->getContents().resize(DF->getContents().size() + Size, 0);
}
}
@ -388,9 +387,8 @@ void MCMachOStreamer::EmitInstruction(const MCInst &Inst) {
DF = new MCDataFragment(CurSectionData);
for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
MCFixup &F = Fixups[i];
DF->getFixups().push_back(MCAsmFixup(DF->getContents().size()+F.getOffset(),
*F.getValue(),
F.getKind()));
DF->addFixup(MCAsmFixup(DF->getContents().size()+F.getOffset(),
*F.getValue(), F.getKind()));
}
DF->getContents().append(Code.begin(), Code.end());
}