Add VerifyNode, a place to put sanity checks on

generic SDNode's (nodes with their own constructors
should do sanity checking in the constructor).  Add
sanity checks for BUILD_VECTOR and fix all the places
that were producing bogus BUILD_VECTORs, as found by
"make check".  My favorite is the BUILD_VECTOR with
only two operands that was being used to build a
vector with four elements!

llvm-svn: 53850

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 14efb446fea..aff38699185 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -5011,7 +5011,8 @@ SDOperand DAGCombiner::visitVECTOR_SHUFFLE(SDNode *N) {
       } else {
         unsigned NewIdx = 
           cast<ConstantSDNode>(ShufMask.getOperand(i))->getValue() - NumElts;
-        MappedOps.push_back(DAG.getConstant(NewIdx, MVT::i32));
+        MappedOps.push_back(DAG.getConstant(NewIdx,
+                                        ShufMask.getOperand(i).getValueType()));
       }
     }
     ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMask.getValueType(),