We don't want to make this a pure interface, as it makes all implementors

bear the burden of implementing what will be all exactly the same methods.
They just want to provide the information in differing ways.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12239 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 2 deletions

diff --git a/include/llvm/Analysis/ProfileInfo.h b/include/llvm/Analysis/ProfileInfo.h
index 10b31d5ded..3bb056bf83 100644
--- a/include/llvm/Analysis/ProfileInfo.h
+++ b/include/llvm/Analysis/ProfileInfo.h
@@ -22,6 +22,7 @@
 #define LLVM_ANALYSIS_PROFILEINFO_H
 
 #include <string>
+#include <map>
 
 namespace llvm {
   class BasicBlock;
@@ -32,13 +33,19 @@ namespace llvm {
   /// it available to the optimizers.
   Pass *createProfileLoaderPass(const std::string &Filename);
 
-  struct ProfileInfo {
+  class ProfileInfo {
+  protected:
+    std::map<BasicBlock*, unsigned> ExecutionCounts;
+  public:
     virtual ~ProfileInfo();  // We want to be subclassed
     
     //===------------------------------------------------------------------===//
     /// Profile Information Queries
     ///
-    virtual unsigned getExecutionCount(BasicBlock *BB) = 0;
+    unsigned getExecutionCount(BasicBlock *BB) {
+      std::map<BasicBlock*, unsigned>::iterator I = ExecutionCounts.find(BB);
+      return I != ExecutionCounts.end() ? I->second : 0;
+    }
     
     //===------------------------------------------------------------------===//
     /// Analysis Update Methods