gcc/testsuite/gcc.dg/tree-ssa/pr72835.c

   1 /* PR tree-optimization/72835.  */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2" } */
   4 /* { dg-require-effective-target int32plus } */
   5
   6 struct struct_1 {
   7     unsigned int m1 : 6 ;
   8     unsigned int m2 : 24 ;
   9     unsigned int m3 : 6 ;
  10 };
  11
  12 unsigned short var_32 = 0x2d10;
  13
  14 struct struct_1 s1;
  15
  16 void init ()
  17 {
  18   s1.m1 = 4;
  19   s1.m2 = 0x7ca4b8;
  20   s1.m3 = 24;
  21 }
  22
  23 void foo ()
  24 {
  25   unsigned int c
  26     = ((unsigned int) s1.m2) * (-((unsigned int) s1.m3))
  27     + (var_32) * (-((unsigned int) (s1.m1)));
  28   if (c != 4098873984)
  29     __builtin_abort ();
  30 }
  31
  32 int main ()
  33 {
  34     init ();
  35     foo ();
  36     return 0;
  37 }