diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -5387,7 +5387,7 @@
   // here is something which only demands lane 0 of the unrolled iterations;
   // it does not imply that all lanes produce the same value (e.g. this is not
   // the usual meaning of uniform)
-  SmallPtrSet<Value *, 8> HasUniformUse;
+  SmallVector<Value *, 8> HasUniformUse;
 
   // Scan the loop for instructions which are either a) known to have only
   // lane 0 demanded or b) are uses which demand only lane 0 of their operand.
@@ -5405,7 +5405,7 @@
 
       if (isUniformDecision(&I, VF)) {
         assert(isVectorizedMemAccessUse(&I, Ptr) && "consistency check");
-        HasUniformUse.insert(Ptr);
+        HasUniformUse.push_back(Ptr);
       }
     }