CALLSEQ_START/END nodes don't get memoized, do not add them in when

replaceAllUses'ing. llvm-svn: 24539
2005-11-30 18:20:52 +00:00 · 2005-11-30 18:20:52 +00:00 · c174048430
parent 7ffe3affda
commit c174048430
1 changed files with 4 additions and 0 deletions
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@ -387,6 +387,10 @@ void SelectionDAG::RemoveNodeFromCSEMaps(SDNode *N) {
 ///
 SDNode *SelectionDAG::AddNonLeafNodeToCSEMaps(SDNode *N) {
  assert(N->getNumOperands() && "This is a leaf node!");
+  if (N->getOpcode() == ISD::CALLSEQ_START || 
+      N->getOpcode() == ISD::CALLSEQ_END)
+    return 0;
+  
  if (N->getOpcode() == ISD::LOAD) {
    SDNode *&L = Loads[std::make_pair(N->getOperand(1),
                                      std::make_pair(N->getOperand(0),