maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

AttrListPtr operations need to be atomic. 

llvm-svn: 79486
This commit is contained in:
Owen Anderson 2009-08-19 22:58:34 +00:00
parent c59ba42b0f
commit d6f7af652e
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
llvm/lib/VMCore/Attributes.cpp
View File

@ -175,14 +175,17 @@ AttrListPtr AttrListPtr::get(const AttributeWithIndex *Attrs, unsigned NumAttrs)
//===----------------------------------------------------------------------===//
AttrListPtr::AttrListPtr(AttributeListImpl *LI) : AttrList(LI) {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (LI) LI->AddRef();
}
AttrListPtr::AttrListPtr(const AttrListPtr &P) : AttrList(P.AttrList) {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (AttrList) AttrList->AddRef();
}
const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (AttrList == RHS.AttrList) return *this;
if (AttrList) AttrList->DropRef();
AttrList = RHS.AttrList;
@ -191,6 +194,7 @@ const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
}
AttrListPtr::~AttrListPtr() {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (AttrList) AttrList->DropRef();
}