diff options
Diffstat (limited to 'llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp index 621ea1d2e7f..e45787f1aa7 100644 --- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -785,9 +785,10 @@ public: break; case ReorderingMode::Opcode: // We accept both Instructions and Undefs, but with different scores. - if ((isa<Instruction>(Op) && + if ((isa<Instruction>(Op) && isa<Instruction>(OpLastLane) && cast<Instruction>(Op)->getOpcode() == cast<Instruction>(OpLastLane)->getOpcode()) || + (isa<UndefValue>(OpLastLane) && isa<Instruction>(Op)) || isa<UndefValue>(Op)) { // An instruction has a higher score than an undef. unsigned Score = (isa<UndefValue>(Op)) ? GoodScore : BestScore; |
