sdcc/support/regression/tests/gcc-torture-execute-20020129-1.c

   1 /*
   2    20020129-1.c from the execute part of the gcc torture suite.
   3  */
   4
   5 #include <testfwk.h>
   6
   7 #ifdef __SDCC
   8 #pragma std_c99
   9 #endif
  10
  11 /* This testcase failed at -O2 on IA-64, because scheduling did not take
  12    into account conditional execution when using cselib for alias
  13    analysis.  */
  14
  15 struct D { int d1; struct D *d2; };
  16 struct C { struct D c1; long c2, c3, c4, c5, c6; };
  17 struct A { struct A *a1; struct C *a2; };
  18 struct B { struct C b1; struct A *b2; };
  19
  20 #ifndef __SDCC_pdk14 // Lack of memory
  21 void
  22 foo (struct B *x, struct B *y)
  23 {
  24   if (x->b2 == 0)
  25     {
  26       struct A *a;
  27
  28       x->b2 = a = y->b2;
  29       y->b2 = 0;
  30       for (; a; a = a->a1)
  31         a->a2 = &x->b1;
  32     }
  33
  34   if (y->b2 != 0)
  35     ASSERT (0);
  36
  37   if (x->b1.c3 == -1)
  38     {
  39       x->b1.c3 = y->b1.c3;
  40       x->b1.c4 = y->b1.c4;
  41       y->b1.c3 = -1;
  42       y->b1.c4 = 0;
  43     }
  44
  45   if (y->b1.c3 != -1)
  46     ASSERT (0);
  47 }
  48
  49 struct B x, y;
  50 #endif
  51
  52 void
  53 testTortureExecute (void)
  54 {
  55 #ifndef __SDCC_pdk14 // Lack of memory
  56   y.b1.c1.d1 = 6;
  57   y.b1.c3 = 145;
  58   y.b1.c4 = 2448;
  59   x.b1.c3 = -1;
  60   foo (&x, &y);
  61 #endif
  62 }
  63