diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index 975253751c8..ac345af2b23 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -363,12 +363,11 @@ namespace ISD {
     // them with (op #2) as a CondCodeSDNode.
     SETCC,
 
-    // Vector SetCC operator - This evaluates to a vector of integer elements
-    // with the high bit in each element set to true if the comparison is true
-    // and false if the comparison is false.  All other bits in each element
-    // are undefined.  The operands to this are the left and right operands
-    // to compare (ops #0, and #1) and the condition code to compare them with
-    // (op #2) as a CondCodeSDNode.
+    // RESULT = VSETCC(LHS, RHS, COND) operator - This evaluates to a vector of
+    // integer elements with all bits of the result elements set to true if the
+    // comparison is true or all cleared if the comparison is false.  The
+    // operands to this are the left and right operands to compare (LHS/RHS) and
+    // the condition code to compare them with (COND) as a CondCodeSDNode.
     VSETCC,
 
     // SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 609ec82c5ad..b10751b0478 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -3071,14 +3071,32 @@ SDValue DAGCombiner::visitSIGN_EXTEND(SDNode *N) {
     }
   }
 
-  // sext(setcc x, y, cc) -> (select_cc x, y, -1, 0, cc)
   if (N0.getOpcode() == ISD::SETCC) {
+    // sext(setcc) -> sext_in_reg(vsetcc) for vectors.
+    if (VT.isVector() &&
+        // We know that the # elements of the results is the same as the
+        // # elements of the compare (and the # elements of the compare result
+        // for that matter).  Check to see that they are the same size.  If so,
+        // we know that the element size of the sext'd result matches the
+        // element size of the compare operands.
+        VT.getSizeInBits() == N0.getOperand(0).getValueType().getSizeInBits() &&
+      
+        // Only do this before legalize for now.
+        !LegalOperations) {
+      return DAG.getVSetCC(N->getDebugLoc(), VT, N0.getOperand(0),
+                           N0.getOperand(1),
+                           cast<CondCodeSDNode>(N0.getOperand(2))->get());
+    }
+    
+    // sext(setcc x, y, cc) -> (select_cc x, y, -1, 0, cc)
     SDValue SCC =
       SimplifySelectCC(N->getDebugLoc(), N0.getOperand(0), N0.getOperand(1),
                        DAG.getConstant(~0ULL, VT), DAG.getConstant(0, VT),
                        cast<CondCodeSDNode>(N0.getOperand(2))->get(), true);
     if (SCC.getNode()) return SCC;
   }
+  
+  
 
   // fold (sext x) -> (zext x) if the sign bit is known zero.
   if ((!LegalOperations || TLI.isOperationLegal(ISD::ZERO_EXTEND, VT)) &&
diff --git a/test/CodeGen/X86/vec_compare.ll b/test/CodeGen/X86/vec_compare.ll
index 7a8dfd68cfd..74e34d0202d 100644
--- a/test/CodeGen/X86/vec_compare.ll
+++ b/test/CodeGen/X86/vec_compare.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | grep pcmpgtd
+; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | grep pcmpgtd | count 2
 
 define <4 x i32> @test(<4 x i32> %A, <4 x i32> %B) nounwind {
 	%C = vicmp sgt <4 x i32> %A, %B