fix concat shape error (#25414)

* fix concat shape error
test=develop

paddle/fluid/operators/concat_op.h

@@ -31,12 +31,19 @@ static inline framework::DDim ComputeAndCheckShape(
   auto out_dims = inputs_dims[0];
   size_t in_zero_dims_size = out_dims.size();
   for (size_t i = 1; i < n; i++) {
+    PADDLE_ENFORCE_EQ(inputs_dims[i].size(), out_dims.size(),
+                      platform::errors::InvalidArgument(
+                          "The shape of input[0] and input[%d] "
+                          "is expected to be equal."
+                          "But received input[0]'s shape = "
+                          "[%s], input[%d]'s shape = [%s].",
+                          i, inputs_dims[0], i, inputs_dims[i]));
     for (size_t j = 0; j < in_zero_dims_size; j++) {
       if (j == axis) {
         if (is_runtime) {
           out_dims[axis] += inputs_dims[i][j];
         } else {
-          if (inputs_dims[i][j] == -1) {
+          if (inputs_dims[i][j] == -1 || out_dims[j] == -1) {
             out_dims[axis] = -1;
           } else {
             out_dims[axis] += inputs_dims[i][j];
@@ -55,6 +62,9 @@ static inline framework::DDim ComputeAndCheckShape(
                                 "[%s], input[%d]'s shape = [%s].",
                                 j, i, inputs_dims[0], i, inputs_dims[i]));
         }
+        if (!is_runtime && out_dims[j] == -1 && inputs_dims[i][j] > 0) {
+          out_dims[j] = inputs_dims[i][j];
+        }
       }
     }
   }