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-rw-r--r--lib/Transforms/InstCombine/InstructionCombining.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/InstCombine/InstructionCombining.cpp b/lib/Transforms/InstCombine/InstructionCombining.cpp
index f530ee1246e8..fef051aa1b7c 100644
--- a/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -1376,7 +1376,8 @@ Instruction *InstCombiner::foldVectorBinop(BinaryOperator &Inst) {
if (match(LHS, m_ShuffleVector(m_Value(L0), m_Value(L1), m_Constant(Mask))) &&
match(RHS, m_ShuffleVector(m_Value(R0), m_Value(R1), m_Specific(Mask))) &&
LHS->hasOneUse() && RHS->hasOneUse() &&
- cast<ShuffleVectorInst>(LHS)->isConcat()) {
+ cast<ShuffleVectorInst>(LHS)->isConcat() &&
+ cast<ShuffleVectorInst>(RHS)->isConcat()) {
// This transform does not have the speculative execution constraint as
// below because the shuffle is a concatenation. The new binops are
// operating on exactly the same elements as the existing binop.