gcc/testsuite/gcc.dg/pr108359.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 /* PR test case.  */
   5 int b = 10;
   6 int c;
   7 char e;
   8 void foo();
   9 static char(a)(char f, char g) { return f && g == 1 ? 0 : f % g; }
  10 short(d)(short f, short g) { return f * g; }
  11 int main() {
  12   short h;
  13   int i;
  14   unsigned j;
  15   h = d(b && c, 5);
  16   j = h;
  17   i = a(h, 237);
  18   unsigned k = i;
  19   e = i < 0 || k >= 32 ? 0 : i >> k;
  20   if (e) {
  21     c = 0;
  22     foo();
  23   }
  24 }
  25
  26
  27 /* Also Check that small ranges are broken down and optimized properly
  28    This function should never call foo ().  */
  29
  30 int otherfunc (int x, int z) {
  31   if (x < 1 || x > 6 )
  32     return 0;
  33
  34   if (x == z)
  35     {
  36     if (x >> z > 0)
  37       foo ();
  38     if (x * z > 26 && x * z < 35)
  39       foo ();
  40     if (x + z == 5)
  41       foo ();
  42     if ((x + z) % 2 == 1)
  43       foo ();
  44     if (x / z != 1)
  45       foo ();
  46
  47     }
  48   return 0;
  49 }
  50
  51
  52 /* { dg-final { scan-tree-dump-not "foo" "optimized" } } */