diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2019-01-19 18:44:22 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2019-01-19 18:44:22 +0000 |
| commit | 3edec5c15a78e4abba7eb9102fef3891c84ebdfb (patch) | |
| tree | 839edc42f4a62f9496ceb5a140889d0c3da25ae8 /lib/Transforms/Vectorize/SLPVectorizer.cpp | |
| parent | d8e91e46262bc44006913e6796843909f1ac7bcd (diff) | |
Diffstat (limited to 'lib/Transforms/Vectorize/SLPVectorizer.cpp')
| -rw-r--r-- | lib/Transforms/Vectorize/SLPVectorizer.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp index 2e856a7e6802e..a07fffe9b98b9 100644 --- a/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -1468,8 +1468,9 @@ void BoUpSLP::buildTree_rec(ArrayRef<Value *> VL, unsigned Depth, // If any of the scalars is marked as a value that needs to stay scalar, then // we need to gather the scalars. + // The reduction nodes (stored in UserIgnoreList) also should stay scalar. for (unsigned i = 0, e = VL.size(); i != e; ++i) { - if (MustGather.count(VL[i])) { + if (MustGather.count(VL[i]) || is_contained(UserIgnoreList, VL[i])) { LLVM_DEBUG(dbgs() << "SLP: Gathering due to gathered scalar.\n"); newTreeEntry(VL, false, UserTreeIdx); return; |