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-rw-r--r--include/llvm/Pass.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/llvm/Pass.h b/include/llvm/Pass.h
index 0855986..e6083a3 100644
--- a/include/llvm/Pass.h
+++ b/include/llvm/Pass.h
@@ -87,7 +87,8 @@ public:
/// runPass - Run this pass, returning true if a modification was made to the
/// module argument. This should be implemented by all concrete subclasses.
///
- virtual bool runPass(Module &M) = 0;
+ virtual bool runPass(Module &M) { return false; }
+ virtual bool runPass(BasicBlock&) { return false; }
/// print - Print out the internal state of the pass. This is called by
/// Analyze to print out the contents of an analysis. Otherwise it is not
@@ -216,7 +217,8 @@ public:
/// being operated on.
virtual bool runOnModule(Module &M) = 0;
- bool runPass(Module &M) { return runOnModule(M); }
+ virtual bool runPass(Module &M) { return runOnModule(M); }
+ virtual bool runPass(BasicBlock&) { return false; }
virtual void addToPassManager(PassManagerT<Module> *PM, AnalysisUsage &AU);
};
@@ -338,7 +340,8 @@ struct BasicBlockPass : public FunctionPass {
/// To run directly on the basic block, we initialize, runOnBasicBlock, then
/// finalize.
///
- bool runPass(BasicBlock &BB);
+ virtual bool runPass(Module &M) { return false; }
+ virtual bool runPass(BasicBlock &BB);
private:
friend class PassManagerT<Function>;