llvm.org GIT mirror llvm / d1ad72f
Add a comment about the additional meaning of setPreservesCFG() for MachineFunctionPass passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78669 91177308-0d34-0410-b5e6-96231b3b80d8 Dan Gohman 10 years ago
1 changed file(s) with 4 addition(s) and 0 deletion(s). Raw diff Collapse all Expand all
3939
4040 /// getAnalysisUsage - Subclasses that override getAnalysisUsage
4141 /// must call this.
42 ///
43 /// For MachineFunctionPasses, calling AU.preservesCFG() indicates that
44 /// the pass does not modify the MachineBasicBlock CFG.
45 ///
4246 virtual void getAnalysisUsage(AnalysisUsage &AU) const;
4347
4448 private: