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-rw-r--r--llvm/lib/Transforms/Scalar/NaryReassociate.cpp18
1 files changed, 9 insertions, 9 deletions
diff --git a/llvm/lib/Transforms/Scalar/NaryReassociate.cpp b/llvm/lib/Transforms/Scalar/NaryReassociate.cpp
index 972bd335c85..930552d2f90 100644
--- a/llvm/lib/Transforms/Scalar/NaryReassociate.cpp
+++ b/llvm/lib/Transforms/Scalar/NaryReassociate.cpp
@@ -246,21 +246,21 @@ bool NaryReassociate::doOneIteration(Function &F) {
Node != GraphTraits<DominatorTree *>::nodes_end(DT); ++Node) {
BasicBlock *BB = Node->getBlock();
for (auto I = BB->begin(); I != BB->end(); ++I) {
- if (SE->isSCEVable(I->getType()) && isPotentiallyNaryReassociable(I)) {
- const SCEV *OldSCEV = SE->getSCEV(I);
- if (Instruction *NewI = tryReassociate(I)) {
+ if (SE->isSCEVable(I->getType()) && isPotentiallyNaryReassociable(&*I)) {
+ const SCEV *OldSCEV = SE->getSCEV(&*I);
+ if (Instruction *NewI = tryReassociate(&*I)) {
Changed = true;
- SE->forgetValue(I);
+ SE->forgetValue(&*I);
I->replaceAllUsesWith(NewI);
// If SeenExprs constains I's WeakVH, that entry will be replaced with
// nullptr.
- RecursivelyDeleteTriviallyDeadInstructions(I, TLI);
- I = NewI;
+ RecursivelyDeleteTriviallyDeadInstructions(&*I, TLI);
+ I = NewI->getIterator();
}
// Add the rewritten instruction to SeenExprs; the original instruction
// is deleted.
- const SCEV *NewSCEV = SE->getSCEV(I);
- SeenExprs[NewSCEV].push_back(WeakVH(I));
+ const SCEV *NewSCEV = SE->getSCEV(&*I);
+ SeenExprs[NewSCEV].push_back(WeakVH(&*I));
// Ideally, NewSCEV should equal OldSCEV because tryReassociate(I)
// is equivalent to I. However, ScalarEvolution::getSCEV may
// weaken nsw causing NewSCEV not to equal OldSCEV. For example, suppose
@@ -280,7 +280,7 @@ bool NaryReassociate::doOneIteration(Function &F) {
//
// This improvement is exercised in @reassociate_gep_nsw in nary-gep.ll.
if (NewSCEV != OldSCEV)
- SeenExprs[OldSCEV].push_back(WeakVH(I));
+ SeenExprs[OldSCEV].push_back(WeakVH(&*I));
}
}
}
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