--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.target/i386/pr88998.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,31 @@
+// PR target/88998
+// { dg-do run { target sse2_runtime } }
+// { dg-options "-O2 -msse2 -mfpmath=387" }
+// { dg-require-effective-target c++11 }
+
+#include <cassert>
+#include <unordered_map>
+#include <x86intrin.h>
+
+double
+__attribute__((noinline))
+prepare (int a, int b)
+{
+  __m128i is = _mm_setr_epi32 (a, b, 0, 0);
+  __m128d ds = _mm_cvtepi32_pd (is);
+  return ds[0] + ds[1];
+}
+
+int
+main (int, char **)
+{
+  double d = prepare (1, 2);
+
+  std::unordered_map < int, int >m;
+  m.insert ({0, 0});
+  m.insert ({1, 1});
+  assert (m.load_factor () <= m.max_load_factor ());
+
+  assert (d == 3.0);
+  return 0;
+}