gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-75.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target int32plus } */
   3 /* { dg-options "-O -fgimple -fdump-tree-fre1" } */
   4
   5 typedef int v4si __attribute__((vector_size(__SIZEOF_INT__ * 4)));
   6 #if __SIZEOF_INT__ == 4
   7 __GIMPLE (ssa) int foo (int *a)
   8 {
   9   v4si _2;
  10   int _3;
  11   int _4;
  12   int _5;
  13   int _6;
  14   int _7;
  15   int _8;
  16   int _9;
  17
  18 __BB(2):
  19   __MEM <unsigned char[3 * __SIZEOF_INT__]> ((char *)a_1(D) + 4) = _Literal (unsigned char[3 * __SIZEOF_INT__]) {};
  20   __MEM <int> (a_1(D) + 8) = 2;
  21   __MEM <int> (a_1(D)) = 1;
  22   _2 = __MEM <v4si> (a_1(D));
  23   _3 = __BIT_FIELD_REF <int> (_2, 32, 0);
  24   _4 = __BIT_FIELD_REF <int> (_2, 32, 32);
  25   _5 = __BIT_FIELD_REF <int> (_2, 32, 64);
  26   _6 = __BIT_FIELD_REF <int> (_2, 32, 96);
  27   _7 = _3 + _4;
  28   _8 = _7 + _5;
  29   _9 = _8 + _6;
  30   return _9;
  31 }
  32 #endif
  33
  34 /* { dg-final { scan-tree-dump "return 3;" "fre1" } } */