gcc/testsuite/gcc.dg/ipa/ipcp-agg-13.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fno-ipa-sra -fdump-ipa-cp --param ipa-cp-eval-threshold=1" } */
   3
   4 int data;
   5 int fn();
   6
   7 int __attribute__((noinline)) f1 (int *p)
   8 {
   9   data = *p;
  10   fn ();
  11   return 0;
  12 }
  13
  14 int __attribute__((noinline)) f2 (int *p)
  15 {
  16   *p = *p + 1;
  17   f1 (p);
  18   return 1;
  19 }
  20
  21 int __attribute__((noinline)) f3 (int a, int *p)
  22 {
  23   *p = a - 2;
  24   f1 (p);
  25   return 1;
  26 }
  27
  28 int f4 ()
  29 {
  30   int i;
  31
  32   for (i = 0; i < 100; i++)
  33     {
  34        int v = 2;
  35
  36        f2 (&v);
  37        f3 (6, &v);
  38     }
  39
  40   return 0;
  41 }
  42
  43 /* { dg-final { scan-ipa-dump "Aggregate replacements: 0\\\[0]=2" "cp" } } */
  44 /* { dg-final { scan-ipa-dump "Aggregate replacements: 0\\\[0]=3" "cp" } } */
  45 /* { dg-final { scan-ipa-dump "Aggregate replacements: 0\\\[0]=4" "cp" } } */