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remove dead code.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97529 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-03-02 00:40:26 +00:00
parent 38fd96731c
commit 319ef94030
1 changed files with 0 additions and 31 deletions
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31
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -1496,37 +1496,6 @@ GetVBR(uint64_t Val, const unsigned char *MatcherTable, unsigned &Idx) {
return Val;
}
/// ISelUpdater - helper class to handle updates of the
/// instruciton selection graph.
namespace {
class ISelUpdater : public SelectionDAG::DAGUpdateListener {
SelectionDAG::allnodes_iterator &ISelPosition;
public:
explicit ISelUpdater(SelectionDAG::allnodes_iterator &isp)
: ISelPosition(isp) {}
/// NodeDeleted - Handle nodes deleted from the graph. If the
/// node being deleted is the current ISelPosition node, update
/// ISelPosition.
///
virtual void NodeDeleted(SDNode *N, SDNode *E) {
if (ISelPosition == SelectionDAG::allnodes_iterator(N))
++ISelPosition;
}
/// NodeUpdated - Ignore updates for now.
virtual void NodeUpdated(SDNode *N) {}
};
}
#if 0
/// ReplaceUses - replace all uses of the old node F with the use
/// of the new node T.
static void ReplaceUses(SDValue F, SDValue T) {
ISelUpdater ISU(ISelPosition);
CurDAG->ReplaceAllUsesOfValueWith(F, T, &ISU);
}
#endif
/// UpdateChainsAndFlags - When a match is complete, this method updates uses of
/// interior flag and chain results to use the new flag and chain results.