From 78d3c3318bcfa3d800f9c437872f5fa245d202f9 Mon Sep 17 00:00:00 2001
From: zhangzhaoju <zhangzhaoju@huawei.com>
Date: Mon, 17 May 2021 17:33:16 +0800
Subject: [PATCH] Delete the invalid cache

---
 mindspore/ccsrc/pipeline/jit/pipeline.cc | 1 -
 mindspore/ccsrc/vm/backend.cc            | 7 -------
 mindspore/ccsrc/vm/segment_runner.cc     | 9 ---------
 mindspore/ccsrc/vm/segment_runner.h      | 5 -----
 4 files changed, 22 deletions(-)

diff --git a/mindspore/ccsrc/pipeline/jit/pipeline.cc b/mindspore/ccsrc/pipeline/jit/pipeline.cc
index ab7b1a43e2e..8ba0fedf56d 100644
--- a/mindspore/ccsrc/pipeline/jit/pipeline.cc
+++ b/mindspore/ccsrc/pipeline/jit/pipeline.cc
@@ -1171,7 +1171,6 @@ void ClearResAtexit() {
   PrimBpropOptimizer::GetPrimBpropOptimizerInst().Clear();
 
   abstract::ClearPrimEvaluatorMap();
-  compile::ClearConvertCache();
   pipeline::GetMethodMap().clear();
   pipeline::GetAttrMap().clear();
   pipeline::ExecutorPy::ClearRes();
diff --git a/mindspore/ccsrc/vm/backend.cc b/mindspore/ccsrc/vm/backend.cc
index b739b88c937..592b4dadc35 100644
--- a/mindspore/ccsrc/vm/backend.cc
+++ b/mindspore/ccsrc/vm/backend.cc
@@ -50,10 +50,6 @@ LinConvertResult MsBackend::MsConvert(const GraphSegmentPtr &segment, const std:
   MS_LOG(DEBUG) << "MsConvert";
   MS_EXCEPTION_IF_NULL(segment);
   MS_EXCEPTION_IF_NULL(MsContext::GetInstance());
-  auto cached = g_ConvertCache.find(segment);
-  if (cached != g_ConvertCache.end()) {
-    return cached->second;
-  }
   LinConvertResult result;
   FuncGraphPtr fg;
   AnfNodePtrList inputs;
@@ -107,9 +103,6 @@ LinConvertResult MsBackend::MsConvert(const GraphSegmentPtr &segment, const std:
   result.graph_id = graph_id;
 
   graph_id_map_[graph_id] = result;
-  if (!pynative_mode) {
-    (void)g_ConvertCache.emplace(segment, result);
-  }
   return result;
 }
 
diff --git a/mindspore/ccsrc/vm/segment_runner.cc b/mindspore/ccsrc/vm/segment_runner.cc
index 482453231fb..dd446956375 100644
--- a/mindspore/ccsrc/vm/segment_runner.cc
+++ b/mindspore/ccsrc/vm/segment_runner.cc
@@ -36,9 +36,6 @@
 
 namespace mindspore {
 namespace compile {
-// cached conversion
-ConvertCache g_ConvertCache;
-void ClearConvertCache() { g_ConvertCache.clear(); }
 
 namespace {
 // Return the list of nodes whose values are required beyond this segment.
@@ -178,11 +175,6 @@ std::tuple<FuncGraphPtr, AnfNodePtrList, AnfNodePtrList> TransformSegmentToAnfGr
 template <typename T>
 LinConvertResult Convert(const GraphSegmentPtr &segment, const std::string &) {
   MS_EXCEPTION_IF_NULL(segment);
-  auto cached = g_ConvertCache.find(segment);
-  if (cached != g_ConvertCache.end()) {
-    return cached->second;
-  }
-
   LinConvertResult result;
 
   FuncGraphPtr fg = nullptr;
@@ -202,7 +194,6 @@ LinConvertResult Convert(const GraphSegmentPtr &segment, const std::string &) {
   result.outputs = outputs;
   result.graph_id = UINT32_MAX;
 
-  (void)g_ConvertCache.emplace(segment, result);
   return result;
 }
 
diff --git a/mindspore/ccsrc/vm/segment_runner.h b/mindspore/ccsrc/vm/segment_runner.h
index 316fed57ca1..841d3ce4e9b 100644
--- a/mindspore/ccsrc/vm/segment_runner.h
+++ b/mindspore/ccsrc/vm/segment_runner.h
@@ -40,13 +40,8 @@ struct LinConvertResult {
 };
 
 using LinkFuncType = std::function<LinConvertResult(const GraphSegmentPtr &, const std::string &)>;
-using ConvertCache = std::unordered_map<GraphSegmentPtr, LinConvertResult>;
 extern LinkFuncType MsVmConvert;
-extern ConvertCache g_ConvertCache;
 extern std::set<std::string> backend_list;
-
-void ClearConvertCache();
-
 std::tuple<FuncGraphPtr, AnfNodePtrList, AnfNodePtrList> TransformSegmentToAnfGraph(const AnfNodePtrList &lst);
 }  // namespace compile
 }  // namespace mindspore