gcc/testsuite/gcc.c-torture/execute/pr31448.c

   1 /* PR middle-end/31448, this used to ICE during expand because
   2    reduce_to_bit_field_precision was not ready to handle constants. */
   3
   4 typedef struct _st {
   5     int iIndex : 24;
   6     int iIndex1 : 24;
   7 } st;
   8 st *next;
   9 void g(void)
  10 {
  11     st *next = 0;
  12     int nIndx;
  13     const static int constreg[] = { 0,};
  14     nIndx = 0;
  15     next->iIndex = constreg[nIndx];
  16 }
  17 void f(void)
  18 {
  19     int nIndx;
  20     const static int constreg[] = { 0xFEFEFEFE,};
  21     nIndx = 0;
  22     next->iIndex = constreg[nIndx];
  23     next->iIndex1 = constreg[nIndx];
  24 }
  25 int main(void)
  26 {
  27   st a;
  28   next = &a;
  29   f();
  30   if (next->iIndex != 0xFFFEFEFE)
  31     __builtin_abort ();
  32   if (next->iIndex1 != 0xFFFEFEFE)
  33     __builtin_abort ();
  34   return 0;
  35 }
  36