diff --git a/mlir/lib/Conversion/MathToLibm/MathToLibm.cpp b/mlir/lib/Conversion/MathToLibm/MathToLibm.cpp
--- a/mlir/lib/Conversion/MathToLibm/MathToLibm.cpp
+++ b/mlir/lib/Conversion/MathToLibm/MathToLibm.cpp
@@ -142,10 +142,12 @@
                                                 PatternBenefit benefit) {
   patterns.add<VecOpToScalarOp<math::Atan2Op>, VecOpToScalarOp<math::ExpM1Op>,
                VecOpToScalarOp<math::TanhOp>, VecOpToScalarOp<math::CosOp>,
-               VecOpToScalarOp<math::SinOp>>(patterns.getContext(), benefit);
+               VecOpToScalarOp<math::SinOp>, VecOpToScalarOp<math::ErfOp>,
+               VecOpToScalarOp<math::RoundOp>>(patterns.getContext(), benefit);
   patterns.add<PromoteOpToF32<math::Atan2Op>, PromoteOpToF32<math::ExpM1Op>,
                PromoteOpToF32<math::TanhOp>, PromoteOpToF32<math::CosOp>,
-               PromoteOpToF32<math::SinOp>>(patterns.getContext(), benefit);
+               PromoteOpToF32<math::SinOp>, PromoteOpToF32<math::ErfOp>,
+               PromoteOpToF32<math::RoundOp>>(patterns.getContext(), benefit);
   patterns.add<ScalarOpToLibmCall<math::Atan2Op>>(patterns.getContext(),
                                                   "atan2f", "atan2", benefit);
   patterns.add<ScalarOpToLibmCall<math::ErfOp>>(patterns.getContext(), "erff",
diff --git a/mlir/test/Conversion/MathToLibm/convert-to-libm.mlir b/mlir/test/Conversion/MathToLibm/convert-to-libm.mlir
--- a/mlir/test/Conversion/MathToLibm/convert-to-libm.mlir
+++ b/mlir/test/Conversion/MathToLibm/convert-to-libm.mlir
@@ -63,6 +63,30 @@
   return %float_result, %double_result : f32, f64
 }
 
+// CHECK-LABEL:   func @erf_vec_caller(
+// CHECK-SAME:                           %[[VAL_0:.*]]: vector<2xf32>,
+// CHECK-SAME:                           %[[VAL_1:.*]]: vector<2xf64>) -> (vector<2xf32>, vector<2xf64>) {
+func.func @erf_vec_caller(%float: vector<2xf32>, %double: vector<2xf64>) -> (vector<2xf32>, vector<2xf64>) {
+  // CHECK-DAG:       %[[CVF:.*]] = arith.constant dense<0.000000e+00> : vector<2xf32>
+  // CHECK-DAG:       %[[CVD:.*]] = arith.constant dense<0.000000e+00> : vector<2xf64>
+  // CHECK:           %[[IN0_F32:.*]] = vector.extract %[[VAL_0]][0] : vector<2xf32>
+  // CHECK:           %[[OUT0_F32:.*]] = call @erff(%[[IN0_F32]]) : (f32) -> f32
+  // CHECK:           %[[VAL_8:.*]] = vector.insert %[[OUT0_F32]], %[[CVF]] [0] : f32 into vector<2xf32>
+  // CHECK:           %[[IN1_F32:.*]] = vector.extract %[[VAL_0]][1] : vector<2xf32>
+  // CHECK:           %[[OUT1_F32:.*]] = call @erff(%[[IN1_F32]]) : (f32) -> f32
+  // CHECK:           %[[VAL_11:.*]] = vector.insert %[[OUT1_F32]], %[[VAL_8]] [1] : f32 into vector<2xf32>
+  %float_result = math.erf %float : vector<2xf32>
+  // CHECK:           %[[IN0_F64:.*]] = vector.extract %[[VAL_1]][0] : vector<2xf64>
+  // CHECK:           %[[OUT0_F64:.*]] = call @erf(%[[IN0_F64]]) : (f64) -> f64
+  // CHECK:           %[[VAL_14:.*]] = vector.insert %[[OUT0_F64]], %[[CVD]] [0] : f64 into vector<2xf64>
+  // CHECK:           %[[IN1_F64:.*]] = vector.extract %[[VAL_1]][1] : vector<2xf64>
+  // CHECK:           %[[OUT1_F64:.*]] = call @erf(%[[IN1_F64]]) : (f64) -> f64
+  // CHECK:           %[[VAL_17:.*]] = vector.insert %[[OUT1_F64]], %[[VAL_14]] [1] : f64 into vector<2xf64>
+  %double_result = math.erf %double : vector<2xf64>
+  // CHECK:           return %[[VAL_11]], %[[VAL_17]] : vector<2xf32>, vector<2xf64>
+  return %float_result, %double_result : vector<2xf32>, vector<2xf64>
+}
+
 // CHECK-LABEL: func @expm1_caller
 // CHECK-SAME: %[[FLOAT:.*]]: f32
 // CHECK-SAME: %[[DOUBLE:.*]]: f64
@@ -157,3 +181,27 @@
   // CHECK: return %[[FLOAT_RESULT]], %[[DOUBLE_RESULT]]
   return %float_result, %double_result : f32, f64
 }
+
+// CHECK-LABEL:   func @round_vec_caller(
+// CHECK-SAME:                           %[[VAL_0:.*]]: vector<2xf32>,
+// CHECK-SAME:                           %[[VAL_1:.*]]: vector<2xf64>) -> (vector<2xf32>, vector<2xf64>) {
+func.func @round_vec_caller(%float: vector<2xf32>, %double: vector<2xf64>) -> (vector<2xf32>, vector<2xf64>) {
+  // CHECK-DAG:       %[[CVF:.*]] = arith.constant dense<0.000000e+00> : vector<2xf32>
+  // CHECK-DAG:       %[[CVD:.*]] = arith.constant dense<0.000000e+00> : vector<2xf64>
+  // CHECK:           %[[IN0_F32:.*]] = vector.extract %[[VAL_0]][0] : vector<2xf32>
+  // CHECK:           %[[OUT0_F32:.*]] = call @roundf(%[[IN0_F32]]) : (f32) -> f32
+  // CHECK:           %[[VAL_8:.*]] = vector.insert %[[OUT0_F32]], %[[CVF]] [0] : f32 into vector<2xf32>
+  // CHECK:           %[[IN1_F32:.*]] = vector.extract %[[VAL_0]][1] : vector<2xf32>
+  // CHECK:           %[[OUT1_F32:.*]] = call @roundf(%[[IN1_F32]]) : (f32) -> f32
+  // CHECK:           %[[VAL_11:.*]] = vector.insert %[[OUT1_F32]], %[[VAL_8]] [1] : f32 into vector<2xf32>
+  %float_result = math.round %float : vector<2xf32>
+  // CHECK:           %[[IN0_F64:.*]] = vector.extract %[[VAL_1]][0] : vector<2xf64>
+  // CHECK:           %[[OUT0_F64:.*]] = call @round(%[[IN0_F64]]) : (f64) -> f64
+  // CHECK:           %[[VAL_14:.*]] = vector.insert %[[OUT0_F64]], %[[CVD]] [0] : f64 into vector<2xf64>
+  // CHECK:           %[[IN1_F64:.*]] = vector.extract %[[VAL_1]][1] : vector<2xf64>
+  // CHECK:           %[[OUT1_F64:.*]] = call @round(%[[IN1_F64]]) : (f64) -> f64
+  // CHECK:           %[[VAL_17:.*]] = vector.insert %[[OUT1_F64]], %[[VAL_14]] [1] : f64 into vector<2xf64>
+  %double_result = math.round %double : vector<2xf64>
+  // CHECK:           return %[[VAL_11]], %[[VAL_17]] : vector<2xf32>, vector<2xf64>
+  return %float_result, %double_result : vector<2xf32>, vector<2xf64>
+}