[PM] Remove an unused and rather expensive mapping from an analysis

group's interface to all of the implementations of that analysis group.
The groups themselves can and do manage this anyways, the pass registry
needn't involve itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219097 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/PassRegistry.h b/include/llvm/PassRegistry.h
index 6233f24c5fd8a7c2a70938e6300777192f4f1d69..8c28ef5e7e614e9de71e18eb5462ecb2349eb5ea 100644 (file)
--- a/include/llvm/PassRegistry.h
+++ b/include/llvm/PassRegistry.h
@@ -48,12 +48,6 @@ class PassRegistry {
   typedef StringMap<const PassInfo *> StringMapType;
   StringMapType PassInfoStringMap;
 
-  /// AnalysisGroupInfo - Keep track of information for each analysis group.
-  struct AnalysisGroupInfo {
-    SmallPtrSet<const PassInfo *, 8> Implementations;
-  };
-  DenseMap<const PassInfo *, AnalysisGroupInfo> AnalysisGroupInfoMap;
-
   std::vector<std::unique_ptr<const PassInfo>> ToFree;
   std::vector<PassRegistrationListener *> Listeners;
 

diff --git a/lib/IR/PassRegistry.cpp b/lib/IR/PassRegistry.cpp
index 2cff3ccdc23390484797d52690600f4536504b3d..b879fef3f4a725128f0fea00b36c91f0c1e9a3dd 100644 (file)
--- a/lib/IR/PassRegistry.cpp
+++ b/lib/IR/PassRegistry.cpp
@@ -101,10 +101,6 @@ void PassRegistry::registerAnalysisGroup(const void *InterfaceID,
     // the interface.
     ImplementationInfo->addInterfaceImplemented(InterfaceInfo);
 
-    AnalysisGroupInfo &AGI = AnalysisGroupInfoMap[InterfaceInfo];
-    assert(AGI.Implementations.count(ImplementationInfo) == 0 &&
-           "Cannot add a pass to the same analysis group more than once!");
-    AGI.Implementations.insert(ImplementationInfo);
     if (isDefault) {
       assert(InterfaceInfo->getNormalCtor() == nullptr &&
              "Default implementation for analysis group already specified!");