Update sequence_conv_op.cc

paddle/fluid/operators/sequence_ops/sequence_conv_op.cc

@@ -68,12 +68,15 @@ class SequenceConvOp : public framework::OperatorWithKernel {
       int down_pad = std::max(0, context_start + context_length - 1);
       int total_pad = up_pad + down_pad;
       int input_width = static_cast<int>(in_dims[1]);
+      bool start_equals_zero = context_start == 0;
+      bool length_equals_one = context_length == 1;
+      bool start_length = start_equals_zero && length_equals_one;
 
-      if (context_start == 0 && context_length == 1) {
-        PADDLE_THROW(platform::errors::InvalidArgument(
-            "If context_start is 0 and context_length is 1, paddingTrainable "
-            "should be false."));
-      }
+      PADDLE_ENFORCE_EQ(
+          start_length, false,
+          platform::errors::InvalidArgument(
+              "If context_start is 0 and context_length is 1, paddingTrainable "
+              "should be false."));
       PADDLE_ENFORCE_EQ(
           padding_dim.size(), 2,
           platform::errors::InvalidArgument(