diff --git a/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp b/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp
--- a/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp
+++ b/mlir/lib/Dialect/Vector/Transforms/VectorDistribute.cpp
@@ -712,6 +712,9 @@
     if (!operand)
       return failure();
     auto read = operand->get().getDefiningOp<vector::TransferReadOp>();
+    // Don't duplicate transfer_read ops when distributing.
+    if (!read.getResult().hasOneUse())
+      return failure();
     unsigned operandIndex = operand->getOperandNumber();
     Value distributedVal = warpOp.getResult(operandIndex);
 
diff --git a/mlir/test/Dialect/Vector/vector-warp-distribute.mlir b/mlir/test/Dialect/Vector/vector-warp-distribute.mlir
--- a/mlir/test/Dialect/Vector/vector-warp-distribute.mlir
+++ b/mlir/test/Dialect/Vector/vector-warp-distribute.mlir
@@ -650,3 +650,22 @@
   vector.transfer_write %r, %dest[%c0, %laneid] : vector<1x1xf32>, memref<1x1024xf32>
   return
 }
+
+// -----
+
+// CHECK-PROP:   func @dont_duplicate_read
+func.func @dont_duplicate_read(
+  %laneid: index, %src: memref<1024xf32>) -> vector<1xf32> {
+  %c0 = arith.constant 0 : index
+  %cst = arith.constant 0.000000e+00 : f32
+//       CHECK-PROP:   vector.warp_execute_on_lane_0(%{{.*}})[32] -> (vector<1xf32>) {
+//  CHECK-PROP-NEXT:     vector.transfer_read
+//  CHECK-PROP-NEXT:     "blocking_use"
+//  CHECK-PROP-NEXT:     vector.yield
+  %r = vector.warp_execute_on_lane_0(%laneid)[32] -> (vector<1xf32>) {
+    %2 = vector.transfer_read %src[%c0], %cst : memref<1024xf32>, vector<32xf32>
+    "blocking_use"(%2) : (vector<32xf32>) -> ()
+    vector.yield %2 : vector<32xf32>
+  }
+  return %r : vector<1xf32>
+}