diff options
Diffstat (limited to 'lib/Analysis/ScalarEvolutionExpander.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolutionExpander.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp index 3e590d68f5..e65dac71fc 100644 --- a/lib/Analysis/ScalarEvolutionExpander.cpp +++ b/lib/Analysis/ScalarEvolutionExpander.cpp @@ -207,3 +207,15 @@ Value *SCEVExpander::visitAddRecExpr(SCEVAddRecExpr *S) { return expand(V); } + +Value *SCEVExpander::expand(SCEV *S) { + // Check to see if we already expanded this. + std::map<SCEVHandle, Value*>::iterator I = InsertedExpressions.find(S); + if (I != InsertedExpressions.end()) + return I->second; + + Value *V = visit(S); + InsertedExpressions[S] = V; + return V; +} + |