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Compact SectionPiece.

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It is pretty easy to get the data from the InputSection, so we don't
have to store it.

This opens the way for storing the hash instead.

llvm-svn: 283357
This commit is contained in:
Rafael Espindola
2016-10-05 18:40:00 +00:00
parent e81d2fa9bb
commit 32aca87bf8
3 changed files with 14 additions and 8 deletions
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6
lld/ELF/InputSection.cpp
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@@ -28,6 +28,10 @@ using namespace llvm::support::endian;
using namespace lld;
using namespace lld::elf;
ArrayRef<uint8_t> InputSectionData::getData(const SectionPiece &P) const {
return Data.slice(P.InputOff, P.size());
}
template <class ELFT>
static ArrayRef<uint8_t> getSectionContents(elf::ObjectFile<ELFT> *File,
const typename ELFT::Shdr *Hdr) {
@@ -638,7 +642,7 @@ template <class ELFT> void MergeInputSection<ELFT>::finalizePieces() {
if (Piece.OutputOff == size_t(-1)) {
// Offsets of tail-merged strings are computed lazily.
auto *OutSec = static_cast<MergeOutputSection<ELFT> *>(this->OutSec);
ArrayRef<uint8_t> D = Piece.data();
ArrayRef<uint8_t> D = this->getData(Piece);
StringRef S((const char *)D.data(), D.size());
Piece.OutputOff = OutSec->getOffset(S);
}