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Change return types of split{Non,}Strings. 

They return new vectors, but at the same time they mutate other vectors,
so returning values doesn't make much sense. We should just mutate two
vectors.

llvm-svn: 287979
This commit is contained in:
Rui Ueyama 2016-11-26 15:15:11 +00:00
parent 72b1ee2533
commit e8a077badf
2 changed files with 10 additions and 15 deletions
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21
lld/ELF/InputSection.cpp
View File

@ -703,9 +703,8 @@ static size_t findNull(ArrayRef<uint8_t> A, size_t EntSize) {
// Split SHF_STRINGS section. Such section is a sequence of
// null-terminated strings.
template <class ELFT>
std::vector<SectionPiece>
MergeInputSection<ELFT>::splitStrings(ArrayRef<uint8_t> Data, size_t EntSize) {
std::vector<SectionPiece> V;
void MergeInputSection<ELFT>::splitStrings(ArrayRef<uint8_t> Data,
size_t EntSize) {
size_t Off = 0;
bool IsAlloc = this->Flags & SHF_ALLOC;
while (!Data.empty()) {
@ -713,12 +712,11 @@ MergeInputSection<ELFT>::splitStrings(ArrayRef<uint8_t> Data, size_t EntSize) {
if (End == StringRef::npos)
fatal(toString(this) + ": string is not null terminated");
size_t Size = End + EntSize;
V.emplace_back(Off, !IsAlloc);
Pieces.emplace_back(Off, !IsAlloc);
Hashes.push_back(hash_value(toStringRef(Data.slice(0, Size))));
Data = Data.slice(Size);
Off += Size;
}
return V;
}
// Returns I'th piece's data.
@ -734,18 +732,15 @@ CachedHashStringRef MergeInputSection<ELFT>::getData(size_t I) const {
// Split non-SHF_STRINGS section. Such section is a sequence of
// fixed size records.
template <class ELFT>
std::vector<SectionPiece>
MergeInputSection<ELFT>::splitNonStrings(ArrayRef<uint8_t> Data,
size_t EntSize) {
std::vector<SectionPiece> V;
void MergeInputSection<ELFT>::splitNonStrings(ArrayRef<uint8_t> Data,
size_t EntSize) {
size_t Size = Data.size();
assert((Size % EntSize) == 0);
bool IsAlloc = this->Flags & SHF_ALLOC;
for (unsigned I = 0, N = Size; I != N; I += EntSize) {
Hashes.push_back(hash_value(toStringRef(Data.slice(I, EntSize))));
V.emplace_back(I, !IsAlloc);
Pieces.emplace_back(I, !IsAlloc);
}
return V;
}
template <class ELFT>
@ -764,9 +759,9 @@ template <class ELFT> void MergeInputSection<ELFT>::splitIntoPieces() {
ArrayRef<uint8_t> Data = this->Data;
uintX_t EntSize = this->Entsize;
if (this->Flags & SHF_STRINGS)
this->Pieces = splitStrings(Data, EntSize);
splitStrings(Data, EntSize);
else
this->Pieces = splitNonStrings(Data, EntSize);
splitNonStrings(Data, EntSize);
if (Config->GcSections && (this->Flags & SHF_ALLOC))
for (uintX_t Off : LiveOffsets)

4
lld/ELF/InputSection.h
View File

@ -201,8 +201,8 @@ public:
const SectionPiece *getSectionPiece(uintX_t Offset) const;
private:
std::vector<SectionPiece> splitStrings(ArrayRef<uint8_t> A, size_t Size);
std::vector<SectionPiece> splitNonStrings(ArrayRef<uint8_t> A, size_t Size);
void splitStrings(ArrayRef<uint8_t> A, size_t Size);
void splitNonStrings(ArrayRef<uint8_t> A, size_t Size);
std::vector<uint32_t> Hashes;