From cb2ef7d97de9b011f2dc9de060e0a641794ccbe1 Mon Sep 17 00:00:00 2001
From: Yu Yang <yuyang18@baidu.com>
Date: Mon, 9 Oct 2017 20:46:44 -0700
Subject: [PATCH] Add comment

---
 paddle/framework/op_desc.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paddle/framework/op_desc.cc b/paddle/framework/op_desc.cc
index 6ce453cc99..c4dcb2210d 100644
--- a/paddle/framework/op_desc.cc
+++ b/paddle/framework/op_desc.cc
@@ -200,6 +200,7 @@ static InferShapeFuncMap &InferShapeFuncs() {
     // all registered kernels
     for (auto &pair : OperatorWithKernel::AllOpKernels()) {
       auto &info = info_map.Get(pair.first);
+      // use empty type here to avoid runtime checks.
       auto op =
           static_cast<OperatorWithKernel *>(info.Creator()("", {}, {}, {}));
       g_map->insert(
-- 
GitLab