commit 6114e600abd3cc5ba6935fbcf54b1d8b63705e8a
author Devang Patel <dpatel@apple.com> Thu Dec 07 19:57:52 2006 +0000
committer Copybara-Service <copybara-worker@google.com> Wed Sep 23 03:38:00 2020 -0700
tree 6d9b20713c8e8c6dfc52b313a96400e18fdace7d
parent 097a0e1fc2d2acec05b19bb7aca7bd0b1a350725

Pass Managers themselves do not invalidate any analysis info.

llvm-svn: 32318
GitOrigin-RevId: f9d96b934dd49d552bb1974b2a8d1794df23c6a8

lib/VMCore/PassManager.cpp

diff --git a/lib/VMCore/PassManager.cpp b/lib/VMCore/PassManager.cpp
index 0dff67f..9585b0d 100644
--- a/lib/VMCore/PassManager.cpp
+++ b/lib/VMCore/PassManager.cpp
@@ -269,6 +269,11 @@
   /// Return true IFF AnalysisID AID is currently available.
   Pass *getAnalysisPassFromManager(AnalysisID AID);
 
+  /// Pass Manager itself does not invalidate any analysis info.
+  void getAnalysisUsage(AnalysisUsage &Info) const {
+    Info.setPreservesAll();
+  }
+
 private:
 };
 
@@ -311,6 +316,12 @@
   /// doFinalization - Run all of the initializers for the function passes.
   ///
   bool doFinalization(Module &M);
+
+  /// Pass Manager itself does not invalidate any analysis info.
+  void getAnalysisUsage(AnalysisUsage &Info) const {
+    Info.setPreservesAll();
+  }
+
 private:
   // Active Pass Managers
   BasicBlockPassManager_New *activeBBPassManager;
@@ -333,7 +344,12 @@
 
   /// Return true IFF AnalysisID AID is currently available.
   Pass *getAnalysisPassFromManager(AnalysisID AID);
-  
+
+  /// Pass Manager itself does not invalidate any analysis info.
+  void getAnalysisUsage(AnalysisUsage &Info) const {
+    Info.setPreservesAll();
+  }
+
 private:
   // Active Pass Manager
   FunctionPassManagerImpl_New *activeFunctionPassManager;
@@ -357,6 +373,11 @@
   /// Return true IFF AnalysisID AID is currently available.
   Pass *getAnalysisPassFromManager(AnalysisID AID);
 
+  /// Pass Manager itself does not invalidate any analysis info.
+  void getAnalysisUsage(AnalysisUsage &Info) const {
+    Info.setPreservesAll();
+  }
+
 private:
 
   /// Add a pass into a passmanager queue. This is used by schedulePasses