Update the comment on scalar to vector to be a bit more clear.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45707 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index e19b42416730feea18b76be04b15200de77a01a0..e222e1b4636ed5427a63a91d761876350d263d7f 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -309,8 +309,8 @@ namespace ISD {
     VECTOR_SHUFFLE,
     
     /// SCALAR_TO_VECTOR(VAL) - This represents the operation of loading a
-    /// scalar value into the low element of the resultant vector type.  The top
-    /// elements of the vector are undefined.
+    /// scalar value into element 0 of the resultant vector type.  The top
+    /// elements 1 to N-1 of the N-element vector are undefined.
     SCALAR_TO_VECTOR,
     
     // EXTRACT_SUBREG - This node is used to extract a sub-register value.