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Stop leaking std::strings in GetDwarfFile.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109746 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2010-07-29 13:53:19 +00:00
parent 808ecfce6a
commit 3bce5adb32
3 changed files with 14 additions and 13 deletions
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16
lib/MC/MCContext.cpp
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@@ -213,7 +213,6 @@ unsigned MCContext::GetDwarfFile(StringRef FileName, unsigned FileNumber) {
std::pair<StringRef, StringRef> Slash = FileName.rsplit('/');
// Find or make a entry in the MCDwarfDirs vector for this Directory.
StringRef Directory;
StringRef Name;
unsigned DirIndex;
// Capture directory name.
@@ -221,23 +220,24 @@ unsigned MCContext::GetDwarfFile(StringRef FileName, unsigned FileNumber) {
Name = Slash.first;
DirIndex = 0; // For FileNames with no directories a DirIndex of 0 is used.
} else {
Directory = Slash.first;
StringRef Directory = Slash.first;
Name = Slash.second;
for (DirIndex = 1; DirIndex < MCDwarfDirs.size(); DirIndex++) {
std::string *&Dir = MCDwarfDirs[DirIndex];
if (Directory == *Dir)
if (Directory == MCDwarfDirs[DirIndex])
break;
}
if (DirIndex >= MCDwarfDirs.size()) {
MCDwarfDirs.resize(DirIndex + 1);
std::string *&NewDir = MCDwarfDirs[DirIndex];
NewDir = new (*this) std::string(Directory);
char *Buf = static_cast<char *>(Allocate(Directory.size()));
memcpy(Buf, Directory.data(), Directory.size());
MCDwarfDirs.push_back(StringRef(Buf, Directory.size()));
}
}
// Now make the MCDwarfFile entry and place it in the slot in the MCDwarfFiles
// vector.
File = new (*this) MCDwarfFile(Name, DirIndex);
char *Buf = static_cast<char *>(Allocate(Name.size()));
memcpy(Buf, Name.data(), Name.size());
File = new (*this) MCDwarfFile(StringRef(Buf, Name.size()), DirIndex);
// return the allocated FileNumber.
return FileNumber;