gcc/testsuite/gcc.dg/ipa/ipcp-agg-8.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fno-ipa-sra -fdump-tree-optimized-slim"  } */
   3 /* { dg-add-options bind_pic_locally } */
   4
   5 struct S
   6 {
   7   int a, b, c;
   8 };
   9
  10 void *blah(int, void *);
  11
  12 static void __attribute__ ((noinline)) foo (int x, int z, struct S *p);
  13
  14 static void __attribute__ ((noinline))
  15 bar (int x, int z, struct S *p)
  16 {
  17   p->b = 0;
  18   foo (z, x, p);
  19 }
  20
  21 static void __attribute__ ((noinline))
  22 foo (int x, int z, struct S *p)
  23 {
  24   int i, c = p->c;
  25   int b = p->b - z;
  26   void *v = (void *) p;
  27
  28   if (z)
  29     {
  30       z--;
  31       bar (z, x, p);
  32     }
  33   for (i = 0; i< c; i++)
  34     v = blah(b + x + i, v);
  35 }
  36
  37 void
  38 entry (int c)
  39 {
  40   struct S s;
  41   int i;
  42
  43   for (i = 0; i<c; i++)
  44     {
  45       s.a = c;
  46       s.b = 64;
  47       s.c = 32;
  48       foo (4, i, &s);
  49     }
  50 }
  51 /* { dg-final { scan-tree-dump "->b;" "optimized" } } */