gcc/testsuite/gcc.dg/ipa/ipcp-cstagg-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-ipa-cp-details" } */
   3
   4 typedef struct S
   5 {
   6   int add_offset;
   7   int (*call)(int);
   8 } S;
   9
  10 extern const S *gs;
  11
  12 static int __attribute__((noinline))
  13 bar (const S *f, int x)
  14 {
  15   x = f->call(x);
  16   x = f->call(x);
  17   x = f->call(x);
  18   gs = f;
  19   return x;
  20 }
  21
  22 static int
  23 sq (int x)
  24 {
  25   return x * x;
  26 }
  27
  28 static const S s = {16, sq};
  29
  30 int
  31 g (int x)
  32 {
  33   return bar (&s, x);
  34 }
  35
  36 int
  37 obfuscate (int x)
  38 {
  39   return bar ((S *) 0, x);
  40 }
  41
  42 /* { dg-final { scan-ipa-dump-times "Discovered an indirect call to a known target" 3 "cp" } } */