diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 447656b2a9950f..001c8987667df8 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -2486,18 +2486,8 @@ BasicBlock *InnerLoopVectorizer::emitSCEVChecks(BasicBlock *Bypass) {
            (OptForSizeBasedOnProfile &&
             Cost->Hints->getForce() != LoopVectorizeHints::FK_Enabled)) &&
          "Cannot SCEV check stride or overflow when optimizing for size");
-
-
-  // Update dominator only if this is first RT check.
-  if (LoopBypassBlocks.empty()) {
-    DT->changeImmediateDominator(Bypass, SCEVCheckBlock);
-    if (!Cost->requiresScalarEpilogue(VF.isVector()))
-      // If there is an epilogue which must run, there's no edge from the
-      // middle block to exit blocks  and thus no need to update the immediate
-      // dominator of the exit blocks.
-      DT->changeImmediateDominator(LoopExitBlock, SCEVCheckBlock);
-  }
-
+  assert(!LoopBypassBlocks.empty() &&
+         "Should already be a bypass block due to iteration count check");
   LoopBypassBlocks.push_back(SCEVCheckBlock);
   AddedSafetyChecks = true;
   return SCEVCheckBlock;