gcc/testsuite/gcc.dg/pr46130-2.c

   1 /* PR tree-optimization/46130 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fno-tree-dce" } */
   4
   5 extern int bar (int);
   6
   7 static int foo (int x)
   8 {
   9   int z, w;
  10   if (x <= 1024)
  11     {
  12       z = 16;
  13       w = 17;
  14     }
  15   else
  16     {
  17       bar (bar (bar (bar (bar (bar (bar (bar (bar (16)))))))));
  18       if (x > 131072)
  19         w = 19;
  20       else
  21         w = 21;
  22       z = 32;
  23     }
  24   w = w + 121;
  25   return z;
  26 }
  27
  28 int
  29 baz (int x)
  30 {
  31   return foo (x + 6) + foo (x + 15) + foo (x + 24);
  32 }