diff options
| -rw-r--r-- | include/llvm/Pass.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/llvm/Pass.h b/include/llvm/Pass.h index 6242a4c81e..7138fadef5 100644 --- a/include/llvm/Pass.h +++ b/include/llvm/Pass.h @@ -142,8 +142,6 @@ public: return dynamic_cast<AnalysisType*>(Resolver->getAnalysisToUpdate(PI)); } -protected: - /// getAnalysis<AnalysisType>() - This function is used by subclasses to get /// to the analysis information that they claim to use by overriding the /// getAnalysisUsage function. @@ -203,8 +201,16 @@ inline std::ostream &operator<<(std::ostream &OS, const Pass &P) { /// "basic" versions of AnalysisGroups. /// struct ImmutablePass : public Pass { + /// initializePass - This method may be overriden by immutable passes to allow + /// them to perform various initialization actions they require. This is + /// primarily because an ImmutablePass can "require" another ImmutablePass, + /// and if it does, the overloaded version of initializePass may get access to + /// these passes with getAnalysis<>. + /// + virtual void initializePass() {} - // ImmutablePasses are never run. + /// ImmutablePasses are never run. + /// virtual bool run(Module &M) { return false; } private: |