diff options
| -rw-r--r-- | lib/Transforms/Scalar/LICM.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/LICM.cpp b/lib/Transforms/Scalar/LICM.cpp index a4aa12abab..669afa33ac 100644 --- a/lib/Transforms/Scalar/LICM.cpp +++ b/lib/Transforms/Scalar/LICM.cpp @@ -102,6 +102,13 @@ namespace { AliasSetTracker *CurAST; // AliasSet information for the current loop... std::map<Loop *, AliasSetTracker *> LoopToAliasMap; + /// cloneBasicBlockAnalysis - Simple Analysis hook. Clone alias set info. + void cloneBasicBlockAnalysis(BasicBlock *From, BasicBlock *To, Loop *L); + + /// deleteAnalysisValue - Simple Analysis hook. Delete value V from alias + /// set. + void deleteAnalysisValue(Value *V, Loop *L); + /// SinkRegion - Walk the specified region of the CFG (defined by all blocks /// dominated by the specified block, and that are in the current loop) in /// reverse depth first order w.r.t the DominatorTree. This allows us to @@ -798,3 +805,22 @@ void LICM::FindPromotableValuesInLoop( } } } + +/// cloneBasicBlockAnalysis - Simple Analysis hook. Clone alias set info. +void LICM::cloneBasicBlockAnalysis(BasicBlock *From, BasicBlock *To, Loop *L) { + AliasSetTracker *AST = LoopToAliasMap[L]; + if (!AST) + return; + + AST->copyValue(From, To); +} + +/// deleteAnalysisValue - Simple Analysis hook. Delete value V from alias +/// set. +void LICM::deleteAnalysisValue(Value *V, Loop *L) { + AliasSetTracker *AST = LoopToAliasMap[L]; + if (!AST) + return; + + AST->deleteValue(V); +} |