diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineFunctionPass.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineFunctionPass.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineFunctionPass.h b/include/llvm/CodeGen/MachineFunctionPass.h index 6f7c216382..60460afae7 100644 --- a/include/llvm/CodeGen/MachineFunctionPass.h +++ b/include/llvm/CodeGen/MachineFunctionPass.h @@ -40,6 +40,10 @@ protected: /// getAnalysisUsage - Subclasses that override getAnalysisUsage /// must call this. + /// + /// For MachineFunctionPasses, calling AU.preservesCFG() indicates that + /// the pass does not modify the MachineBasicBlock CFG. + /// virtual void getAnalysisUsage(AnalysisUsage &AU) const; private: |