LegalizeSetCCOperands() may end up inserting libcalls. They need to be
properly serialized. Do not clear LastCallSEQ_END until that is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32659 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 1808dac..faebbdc 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -1360,14 +1360,13 @@
// Ensure that libcalls are emitted before a branch.
Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END);
Tmp1 = LegalizeOp(Tmp1);
- LastCALLSEQ_END = DAG.getEntryNode();
-
Tmp2 = Node->getOperand(2); // LHS
Tmp3 = Node->getOperand(3); // RHS
Tmp4 = Node->getOperand(1); // CC
LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4);
-
+ LastCALLSEQ_END = DAG.getEntryNode();
+
// If we didn't get both a LHS and RHS back from LegalizeSetCCOperands,
// the LHS is a legal SETCC itself. In this case, we need to compare
// the result against zero to select between true and false values.