Added hook to let targets custom lower splitting of illegal vectors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150550 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
index 41b4221ef90a34e0fb93436f69f0e2173d47b802..a8aee122788100e09e3b5f89710982b0a3549c44 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
@@ -404,6 +404,10 @@ void DAGTypeLegalizer::SplitVectorResult(SDNode *N, unsigned ResNo) {
         N->dump(&DAG);
         dbgs() << "\n");
   SDValue Lo, Hi;
+  
+  // See if the target wants to custom expand this node.
+  if (CustomLowerNode(N, N->getValueType(ResNo), true))
+    return;
 
   switch (N->getOpcode()) {
   default: