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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
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4
llvm/lib/VMCore/Attributes.cpp
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@ -175,14 +175,17 @@ AttrListPtr AttrListPtr::get(const AttributeWithIndex *Attrs, unsigned NumAttrs)
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
AttrListPtr::AttrListPtr(AttributeListImpl *LI) : AttrList(LI) { AttrListPtr::AttrListPtr(AttributeListImpl *LI) : AttrList(LI) {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (LI) LI->AddRef(); if (LI) LI->AddRef();
} }
AttrListPtr::AttrListPtr(const AttrListPtr &P) : AttrList(P.AttrList) { AttrListPtr::AttrListPtr(const AttrListPtr &P) : AttrList(P.AttrList) {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (AttrList) AttrList->AddRef(); if (AttrList) AttrList->AddRef();
} }
const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) { const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (AttrList == RHS.AttrList) return *this; if (AttrList == RHS.AttrList) return *this;
if (AttrList) AttrList->DropRef(); if (AttrList) AttrList->DropRef();
AttrList = RHS.AttrList; AttrList = RHS.AttrList;
@ -191,6 +194,7 @@ const AttrListPtr &AttrListPtr::operator=(const AttrListPtr &RHS) {
} }
AttrListPtr::~AttrListPtr() { AttrListPtr::~AttrListPtr() {
sys::SmartScopedLock<true> Lock(*ALMutex);
if (AttrList) AttrList->DropRef(); if (AttrList) AttrList->DropRef();
} }