gcc/testsuite/gcc.dg/ipa/pr103227-3.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -fno-tree-fre -fno-tree-sra -fdump-tree-optimized-slim"  } */
   3
   4 struct S
   5 {
   6   int a, b, c;
   7 };
   8
   9 volatile int z1;
  10 int z2 = 44;
  11
  12 void  __attribute__((noipa))
  13 use_int (int c)
  14 {
  15   z1 = c;
  16 }
  17
  18 static void __attribute__ ((noinline))
  19 bar (struct S s)
  20 {
  21   use_int (s.c);
  22 }
  23
  24
  25 static void __attribute__ ((noinline))
  26 foo (struct S s)
  27 {
  28   int c = s.c;
  29   if (c != 21)
  30     use_int (c);
  31
  32   s.c = z2;
  33   bar (s);
  34   if (s.c != 44)
  35     __builtin_abort ();
  36 }
  37
  38 int
  39 main (void)
  40 {
  41   struct S s;
  42   s.a = 1;
  43   s.b = 64;
  44   s.c = 21;
  45   foo (s);
  46   return 0;
  47 }
  48
  49
  50
  51
  52 /* { dg-final { scan-tree-dump-not "ellide" "optimized" } } */