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Add constructor to create MDString using std::string

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74133 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-06-24 22:42:39 +00:00
parent bd58edf591
commit 70535451e0
2 changed files with 12 additions and 0 deletions
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1
include/llvm/Constants.h
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@ -865,6 +865,7 @@ public:
/// get() - Static factory methods - Return objects of the specified value.
///
static MDString *get(const char *StrBegin, const char *StrEnd);
static MDString *get(const std::string &Str);
/// size() - The length of this string.
///

11
lib/VMCore/Constants.cpp
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@ -1803,6 +1803,17 @@ MDString *MDString::get(const char *StrBegin, const char *StrEnd) {
return S;
}
MDString *MDString::get(const std::string &Str) {
sys::SmartScopedWriter<true> Writer(&*ConstantsLock);
StringMapEntry<MDString *> &Entry = MDStringCache->GetOrCreateValue(
Str.data(), Str.data() + Str.size());
MDString *&S = Entry.getValue();
if (!S) S = new MDString(Entry.getKeyData(),
Entry.getKeyData() + Entry.getKeyLength());
return S;
}
void MDString::destroyConstant() {
sys::SmartScopedWriter<true> Writer(&*ConstantsLock);
MDStringCache->erase(MDStringCache->find(StrBegin, StrEnd));