--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.c-torture/execute/pr92618.c	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,63 @@
+/* PR tree-optimization/92618 */
+
+typedef long long __m128i __attribute__((__may_alias__, __vector_size__(2 * sizeof (long long))));
+
+double a[4];
+unsigned long long b[4];
+
+__attribute__((noipa)) __m128i
+bar (void)
+{
+  static int cnt;
+  cnt += 2;
+  return (__m128i) { cnt, cnt + 1 };
+}
+
+#if __SIZEOF_LONG_LONG__ == __SIZEOF_DOUBLE__
+typedef double __m128d __attribute__((__may_alias__, __vector_size__(2 * sizeof (double))));
+
+__attribute__((noipa)) __m128i
+qux (void)
+{
+  static double cnt;
+  cnt += 2.0;
+  return (__m128i) (__m128d) { cnt, cnt + 1.0 };
+}
+#endif
+
+void
+foo (unsigned long long *x)
+{
+  __m128i c = bar ();
+  __m128i d = bar ();
+  *(__m128i *) &b[0] = c;
+  *(__m128i *) &b[2] = d;
+  *x = b[0] + b[1] + b[2] + b[3];
+}
+
+void
+baz (double *x)
+{
+#if __SIZEOF_LONG_LONG__ == __SIZEOF_DOUBLE__
+  __m128i c = qux ();
+  __m128i d = qux ();
+  *(__m128i *) &a[0] = c;
+  *(__m128i *) &a[2] = d;
+  *x = a[0] + a[1] + a[2] + a[3];
+#endif
+}
+
+int
+main ()
+{
+  unsigned long long c = 0;
+  foo (&c);
+  if (c != 2 + 3 + 4 + 5)
+    __builtin_abort ();
+#if __SIZEOF_LONG_LONG__ == __SIZEOF_DOUBLE__
+  double d = 0.0;
+  baz (&d);
+  if (d != 2.0 + 3.0 + 4.0 + 5.0)
+    __builtin_abort ();
+#endif
+}