fix infer

test=develop

paddle/fluid/operators/teacher_student_sigmoid_loss_op.cc

@@ -37,12 +37,14 @@ class TeacherStudentSigmoidLossOp : public framework::OperatorWithKernel {
     PADDLE_ENFORCE_EQ(x_dims.size(), 2UL, "Input(X)'s rank should be 2.");
     PADDLE_ENFORCE_EQ(label_dims.size(), 2UL,
                       "Input(Label)'s rank should be 2.");
+    if (ctx->IsRuntime()) {
       PADDLE_ENFORCE_EQ(x_dims[0], label_dims[0],
                         "The 1st dimension of Input(X) and Input(Label) should "
                         "be equal.");
       PADDLE_ENFORCE_EQ(label_dims[1], 1UL,
                         "The 2nd dimension of "
                         "Input(Label) should be 1.");
+    }
     ctx->SetOutputDim("Y", {x_dims[0], 1});
     ctx->ShareLoD("X", /*->*/ "Y");
   }
@@ -99,10 +101,12 @@ class TeacherStudentSigmoidLossGradientOp
     PADDLE_ENFORCE_EQ(x_dims.size(), 2, "Input(X)'s rank should be 2.");
     PADDLE_ENFORCE_EQ(dy_dims.size(), 2, "Input(Y@Grad)'s rank should be 2.");
     PADDLE_ENFORCE_EQ(label_dims.size(), 2, "Input(Label)'s rank should be 2.");
+    if (ctx->IsRuntime()) {
       PADDLE_ENFORCE_EQ(x_dims[0], label_dims[0],
                         "The 1st dimension of Input(X) and Input(Label) should "
                         "be equal.");
-    PADDLE_ENFORCE_EQ(x_dims[0], dy_dims[0],
+      PADDLE_ENFORCE_EQ(
+          x_dims[0], dy_dims[0],
           "The 1st dimension of Input(X) and Input(Y@Grad) should "
           "be equal.");
       PADDLE_ENFORCE_EQ(dy_dims[1], 1,
@@ -110,6 +114,7 @@ class TeacherStudentSigmoidLossGradientOp
       PADDLE_ENFORCE_EQ(label_dims[1], 1,
                         "When Attr(soft_label) == false, the 2nd dimension of "
                         "Input(Label) should be 1.");
+    }
     ctx->SetOutputDim(framework::GradVarName("X"), x_dims);
     ctx->ShareLoD("X", framework::GradVarName("X"));
   }