--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/sancov/cmp0.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,92 @@
+/* Basic test on number of inserted callbacks.  */
+/* { dg-do compile } */
+/* { dg-options "-fsanitize-coverage=trace-cmp -fdump-tree-optimized" } */
+
+void
+foo (char *a, short *b, int *c, long long *d, float *e, double *f)
+{
+  if (*a)
+    *a += 1;
+  if (*b)
+    *b = *a;
+  if (*c)
+    *c += 1;
+  if (*d)
+    *d = *c;
+  if (*e == *c)
+    *e = *c;
+  if (*f == *e)
+    *f = *e;
+  switch (*a)
+    {
+    case 2:
+      *b += 2;
+      break;
+    case 3:
+      *b += 3;
+      break;
+    case 4:
+      *b += 4;
+      break;
+    case 5:
+      *b += 5;
+      break;
+    case 6:
+      *b += 6;
+      break;
+    case 7 ... 24:
+      *b += 7;
+      break;
+    default:
+      break;
+    }
+  switch (*d)
+    {
+    case 3:
+      *d += 3;
+    case -4:
+      *d -= 4;
+    case -5:
+      *d -= 5;
+    case -6:
+      *d -= 6;
+    case -7:
+      *d -= 7;
+    case -8:
+      *d -= 8;
+    case -9:
+      *d -= 9;
+    case -10:
+      *d -= 10;
+    }
+}
+
+void
+bar (int *c)
+{
+  if (*c == 27)
+    *c += 2;
+  if (*c == 37)
+    *c += 2;
+}
+
+int
+baz (int *c, long long d, long long e)
+{
+  *c = (*c == 48) ? 12 : 24;
+  return d == e;
+}
+
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp1 \\(0, " 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp2 \\(0, " 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp4 \\(0, " 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp8 \\(0, " 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp4 \\(27, " 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp4 \\(37, " 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp4 \\(48, " 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_cmp8 \\(" 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_cmpf \\(" 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_cmpd \\(" 1 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_const_cmp" 7 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_cmp" 3 "optimized" } } */
+/* { dg-final { scan-tree-dump-times "__builtin___sanitizer_cov_trace_switch \\(" 2 "optimized" } } */