commit 1b66f82d6e76174231832f513f1721cbddf972ca
author Chris Lattner <sabre@nondot.org> Sat Nov 24 19:12:15 2007 +0000
committer Chris Lattner <sabre@nondot.org> Sat Nov 24 19:12:15 2007 +0000
tree 6406df8486907c2801aef457d73b8a711a0b6d5f
parent 8f259c01d3c6253c3c22c7978fccc0b9be8b7ce3

Implement expand support for MERGE_VALUEs that only produces one result.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44304 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index aa8ffaa..30b5515 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -5401,6 +5401,10 @@
     break;
       
   case ISD::MERGE_VALUES:
+    if (Node->getNumValues() == 1) {
+      ExpandOp(Op.getOperand(0), Lo, Hi);
+      break;
+    }
     // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y)
     assert(Op.ResNo == 0 && Node->getNumValues() == 2 &&
            Op.getValue(1).getValueType() == MVT::Other &&