gcc/testsuite/gcc.dg/ipa/ipcp-cstagg-6.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 *es, *fs;
  11
  12 static int  __attribute__((noinline))
  13 foo (const S f, int x)
  14 {
  15   es = &f;                      /* This disables IPA-SRA */
  16   x = f.call(x+f.add_offset);
  17   x = f.call(x);
  18   x = f.call(x);
  19   return x;
  20 }
  21
  22 static int  __attribute__((noinline))
  23 bar (const S f, int x)
  24 {
  25   fs = &f;                      /* This disables IPA-SRA */
  26   return foo (f, x);
  27 }
  28
  29 static int
  30 sq (int x)
  31 {
  32   return x * x;
  33 }
  34
  35 static const S s = {16, sq};
  36
  37 int
  38 h (int x)
  39 {
  40   return bar (s, x);
  41 }
  42
  43 /* { dg-final { scan-ipa-dump-times "Discovered an indirect call to a known target" 3 "cp" } } */