--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgomp/testsuite/libgomp.c/scan-3.c	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,88 @@
+/* { dg-require-effective-target size32plus } */
+
+extern void abort (void);
+float r = 1.0f, a[1024], b[1024];
+
+__attribute__((noipa)) void
+foo (float *a, float *b)
+{
+  #pragma omp for reduction (inscan, *:r)
+  for (int i = 0; i < 1024; i++)
+    {
+      r *= a[i];
+      #pragma omp scan inclusive(r)
+      b[i] = r;
+    }
+}
+
+__attribute__((noipa)) float
+bar (void)
+{
+  float s = -__builtin_inff ();
+  #pragma omp parallel for reduction (inscan, max:s)
+  for (int i = 0; i < 1024; i++)
+    {
+      s = s > a[i] ? s : a[i];
+      #pragma omp scan inclusive(s)
+      b[i] = s;
+    }
+  return s;
+}
+
+int
+main ()
+{
+  float s = 1.0f;
+  for (int i = 0; i < 1024; ++i)
+    {
+      if (i < 80)
+	a[i] = (i & 1) ? 0.25f : 0.5f;
+      else if (i < 200)
+	a[i] = (i % 3) == 0 ? 2.0f : (i % 3) == 1 ? 4.0f : 1.0f;
+      else if (i < 280)
+	a[i] = (i & 1) ? 0.25f : 0.5f;
+      else if (i < 380)
+	a[i] = (i % 3) == 0 ? 2.0f : (i % 3) == 1 ? 4.0f : 1.0f;
+      else
+	switch (i % 6)
+	  {
+	  case 0: a[i] = 0.25f; break;
+	  case 1: a[i] = 2.0f; break;
+	  case 2: a[i] = -1.0f; break;
+	  case 3: a[i] = -4.0f; break;
+	  case 4: a[i] = 0.5f; break;
+	  case 5: a[i] = 1.0f; break;
+	  default: a[i] = 0.0f; break;
+	  }
+      b[i] = -19.0f;
+      asm ("" : "+g" (i));
+    }
+  #pragma omp parallel
+  foo (a, b);
+  if (r * 16384.0f != 0.125f)
+    abort ();
+  float m = -175.25f;
+  for (int i = 0; i < 1024; ++i)
+    {
+      s *= a[i];
+      if (b[i] != s)
+	abort ();
+      else
+	{
+	  a[i] = m - ((i % 3) == 1 ? 2.0f : (i % 3) == 2 ? 4.0f : 0.0f);
+	  b[i] = -231.75f;
+	  m += 0.75f;
+	}
+    }
+  if (bar () != 592.0f)
+    abort ();
+  s = -__builtin_inff ();
+  for (int i = 0; i < 1024; ++i)
+    {
+      if (s < a[i])
+	s = a[i];
+      if (b[i] != s)
+	abort ();
+    }
+  return 0;
+}