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Save a std::string.

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The group names are always symbol names, so we can use a StringRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233545 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2015-03-30 13:59:06 +00:00
parent 5738b77176
commit fd45ac4635
2 changed files with 14 additions and 11 deletions
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4
include/llvm/MC/MCContext.h
View File

@ -164,7 +164,7 @@ namespace llvm {
struct ELFSectionKey {
std::string SectionName;
std::string GroupName;
StringRef GroupName;
ELFSectionKey(StringRef SectionName, StringRef GroupName)
: SectionName(SectionName), GroupName(GroupName) {}
bool operator<(const ELFSectionKey &Other) const {
@ -176,7 +176,7 @@ namespace llvm {
struct COFFSectionKey {
std::string SectionName;
std::string GroupName;
StringRef GroupName;
int SelectionKey;
COFFSectionKey(StringRef SectionName, StringRef GroupName,
int SelectionKey)

21
lib/MC/MCContext.cpp
View File

@ -291,6 +291,12 @@ const MCSectionELF *MCContext::getELFSection(StringRef Section, unsigned Type,
unsigned Flags, unsigned EntrySize,
StringRef Group, bool Unique,
const char *BeginSymName) {
MCSymbol *GroupSym = nullptr;
if (!Group.empty()) {
GroupSym = GetOrCreateSymbol(Group);
Group = GroupSym->getName();
}
// Do the lookup, if we have a hit, return it.
auto IterBool = ELFUniquingMap.insert(
std::make_pair(ELFSectionKey{Section, Group}, nullptr));
@ -298,10 +304,6 @@ const MCSectionELF *MCContext::getELFSection(StringRef Section, unsigned Type,
if (!IterBool.second && !Unique)
return Entry.second;
MCSymbol *GroupSym = nullptr;
if (!Group.empty())
GroupSym = GetOrCreateSymbol(Group);
StringRef CachedName = Entry.first.SectionName;
SectionKind Kind;
@ -340,18 +342,19 @@ const MCSectionCOFF *
MCContext::getCOFFSection(StringRef Section, unsigned Characteristics,
SectionKind Kind, StringRef COMDATSymName,
int Selection, const char *BeginSymName) {
// Do the lookup, if we have a hit, return it.
MCSymbol *COMDATSymbol = nullptr;
if (!COMDATSymName.empty()) {
COMDATSymbol = GetOrCreateSymbol(COMDATSymName);
COMDATSymName = COMDATSymbol->getName();
}
// Do the lookup, if we have a hit, return it.
COFFSectionKey T{Section, COMDATSymName, Selection};
auto IterBool = COFFUniquingMap.insert(std::make_pair(T, nullptr));
auto Iter = IterBool.first;
if (!IterBool.second)
return Iter->second;
MCSymbol *COMDATSymbol = nullptr;
if (!COMDATSymName.empty())
COMDATSymbol = GetOrCreateSymbol(COMDATSymName);
MCSymbol *Begin = nullptr;
if (BeginSymName)
Begin = createTempSymbol(BeginSymName, false);