Change the interface to the type legalization method

ReplaceNodeResults: rather than returning a node which
must have the same number of results as the original
node (which means mucking around with MERGE_VALUES,
and which is also easy to get wrong since SelectionDAG
folding may mean you don't get the node you expect),
return the results in a vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60348 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 20 deletions

diff --git a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
index 6e781076b8..0c17531aca 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -34,16 +34,8 @@ void DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) {
   SDValue Result = SDValue();
 
   // See if the target wants to custom expand this node.
-  if (TLI.getOperationAction(N->getOpcode(), N->getValueType(ResNo)) ==
-      TargetLowering::Custom) {
-    // If the target wants to, allow it to lower this itself.
-    if (SDNode *P = TLI.ReplaceNodeResults(N, DAG)) {
-      // Everything that once used N now uses P.  We are guaranteed that the
-      // result value types of N and the result value types of P match.
-      ReplaceNodeWith(N, P);
-      return;
-    }
-  }
+  if (CustomLowerResults(N, ResNo))
+    return;
 
   switch (N->getOpcode()) {
   default:
@@ -949,16 +941,8 @@ void DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) {
   Lo = Hi = SDValue();
 
   // See if the target wants to custom expand this node.
-  if (TLI.getOperationAction(N->getOpcode(), N->getValueType(ResNo)) ==
-      TargetLowering::Custom) {
-    // If the target wants to, allow it to lower this itself.
-    if (SDNode *P = TLI.ReplaceNodeResults(N, DAG)) {
-      // Everything that once used N now uses P.  We are guaranteed that the
-      // result value types of N and the result value types of P match.
-      ReplaceNodeWith(N, P);
-      return;
-    }
-  }
+  if (CustomLowerResults(N, ResNo))
+    return;
 
   switch (N->getOpcode()) {
   default: