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Don't allocate empty read-only SmallVectors during SelectionDAG deallocation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133348 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2011-06-18 13:13:44 +00:00
parent 1396c40389
commit 22a54c1cd7
3 changed files with 11 additions and 7 deletions
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10
include/llvm/CodeGen/SelectionDAG.h
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@@ -96,8 +96,12 @@ public:
return DbgValues.empty() && ByvalParmDbgValues.empty();
}
SmallVector<SDDbgValue*,2> &getSDDbgValues(const SDNode *Node) {
return DbgValMap[Node];
ArrayRef<SDDbgValue*> getSDDbgValues(const SDNode *Node) {
DenseMap<const SDNode*, SmallVector<SDDbgValue*, 2> >::iterator I =
DbgValMap.find(Node);
if (I != DbgValMap.end())
return I->second;
return ArrayRef<SDDbgValue*>();
}
typedef SmallVector<SDDbgValue*,32>::iterator DbgIterator;
@@ -898,7 +902,7 @@ public:
void AddDbgValue(SDDbgValue *DB, SDNode *SD, bool isParameter);
/// GetDbgValues - Get the debug values which reference the given SDNode.
SmallVector<SDDbgValue*,2> &GetDbgValues(const SDNode* SD) {
ArrayRef<SDDbgValue*> GetDbgValues(const SDNode* SD) {
return DbgInfo->getSDDbgValues(SD);
}