From ed892ebaf963743a7f9cbf155f9db45998708dcd Mon Sep 17 00:00:00 2001
From: tensor-tang <tangjian03@baidu.com>
Date: Tue, 16 Apr 2019 05:17:11 +0000
Subject: [PATCH] update

test=develop
---
 paddle/fluid/operators/attention_lstm_op.cc | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/paddle/fluid/operators/attention_lstm_op.cc b/paddle/fluid/operators/attention_lstm_op.cc
index 7d599ffd6..aecd3d430 100644
--- a/paddle/fluid/operators/attention_lstm_op.cc
+++ b/paddle/fluid/operators/attention_lstm_op.cc
@@ -70,9 +70,13 @@ void AttentionLSTMOp::InferShape(framework::InferShapeContext* ctx) const {
 
   if (ctx->HasInput("H0")) {
     auto h_dims = ctx->GetInputDim("H0");
-    PADDLE_ENFORCE(h_dims == c_dims,
-                   "The dimension of Input(H0) and Input(C0) "
-                   "should be the same.");
+    PADDLE_ENFORCE_EQ(h_dims.size(), 2UL, "Input(H0)'s rank must be 2.");
+    if (ctx->IsRuntime() ||
+        (framework::product(c_dims) > 0 && framework::product(h_dims) > 0)) {
+      PADDLE_ENFORCE(h_dims == c_dims,
+                     "The dimension of Input(H0) and Input(C0) "
+                     "should be the same.");
+    }
   }
 
   auto atten_w_dims = ctx->GetInputDim("AttentionWeight");
-- 
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