diff --git a/tensorflow/compiler/xla/service/algebraic_simplifier.cc b/tensorflow/compiler/xla/service/algebraic_simplifier.cc
index 649ee116b4d..3283963a347 100644
--- a/tensorflow/compiler/xla/service/algebraic_simplifier.cc
+++ b/tensorflow/compiler/xla/service/algebraic_simplifier.cc
@@ -1581,6 +1581,15 @@ AlgebraicSimplifierVisitor::OptimizeDotOfReorderContractingDims(
       lhs_contracting_dims.Add(i);
     }
   }
+  // We require the "unsquished" lhs contracting dims to be consecutive.
+  auto is_iota = [](absl::Span<const int64> dims) {
+    return absl::c_adjacent_find(dims, [](const int64 a, const int64 b) {
+             return (b != a + 1);
+           }) == dims.end();
+  };
+  if (!is_iota(AsInt64Slice(lhs_contracting_dims))) {
+    return nullptr;
+  }
   lhs = lhs->mutable_operand(0);
 
   // Check that the transpose only permutes the contracting dims.
@@ -1597,6 +1606,7 @@ AlgebraicSimplifierVisitor::OptimizeDotOfReorderContractingDims(
   for (auto dim : lhs_contracting_dims) {
     permutation.push_back(transpose_dims[dim] - lhs_contracting_dims[0]);
   }
+  CHECK(IsPermutation(permutation, permutation.size()));
   auto new_lhs_contracting_dims =
       ComposePermutations(AsInt64Slice(lhs_contracting_dims), permutation);
   lhs_contracting_dims.Clear();
diff --git a/tensorflow/compiler/xla/service/algebraic_simplifier_test.cc b/tensorflow/compiler/xla/service/algebraic_simplifier_test.cc
index 70a6b0161cb..34e0eb6008a 100644
--- a/tensorflow/compiler/xla/service/algebraic_simplifier_test.cc
+++ b/tensorflow/compiler/xla/service/algebraic_simplifier_test.cc
@@ -5372,10 +5372,8 @@ TEST_F(AlgebraicSimplifierTest, DotContractingReorder_SizeOneDims) {
   EXPECT_THAT(transpose->dimensions(), ElementsAre(0, 2, 1, 3));
 }
 
-// This test exposes a real bug: It tries to read an out-of-bounds array index
-// from within ComposePermutations().  TODO(b/132330723): Fix this.
 TEST_F(AlgebraicSimplifierTest,
-       DISABLED_DotContractingReorder_NoChangeInContractingDimsOrder) {
+       DotContractingReorder_NoChangeInContractingDimsOrder) {
   // No optimization opportunity here because the transpose does not reorder the
   // contracting dims.
   const char* kModuleStr = R"(