Non-functional change: make custom lowering for truncate stylistically

consistent with the way it's generally done in other places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60439 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index cd90f672513efa31637509f92408ab61d82244cb..d61d6ca6fdfc8964a378710c80a21f6d8793e27c 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -3903,11 +3903,18 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) {
     switch (getTypeAction(Node->getOperand(0).getValueType())) {
     case Legal:
       Tmp1 = LegalizeOp(Node->getOperand(0));
-      Result = DAG.UpdateNodeOperands(Result, Tmp1);
-      if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) ==
-          TargetLowering::Custom) {
-        Tmp1 = TLI.LowerOperation(Result, DAG);
-        if (Tmp1.getNode()) Result = Tmp1;
+      switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) {
+      default: assert(0 && "Unknown TRUNCATE legalization operation action!");
+      case TargetLowering::Custom:
+       isCustom = true;
+       // FALLTHROUGH
+      case TargetLowering::Legal:
+       Result = DAG.UpdateNodeOperands(Result, Tmp1);
+       if (isCustom) {
+         Tmp1 = TLI.LowerOperation(Result, DAG);
+         if (Tmp1.getNode()) Result = Tmp1;
+       }
+       break;
       }
       break;
     case Expand: