gcc/testsuite/gcc.target/i386/avx-vzeroupper-24.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -mavx -mtune=generic -dp" } */
   3
   4 typedef struct bitmap_element_def {
   5   struct bitmap_element_def *next;
   6   unsigned int indx;
   7 } bitmap_element;
   8 typedef struct bitmap_head_def {
   9   bitmap_element *first;
  10   bitmap_element *current;
  11   unsigned int indx;
  12 } bitmap_head;
  13 typedef struct bitmap_head_def *bitmap;
  14 typedef const struct bitmap_head_def *const_bitmap;
  15 extern void bar (void) __attribute__ ((__noreturn__));
  16 unsigned char
  17 bitmap_and_compl_into (bitmap a, const_bitmap b)
  18 {
  19   bitmap_element *a_elt = a->first;
  20   const bitmap_element *b_elt = b->first;
  21   if (a == b)
  22     {
  23       if ((!(a)->first))
  24         return 0;
  25       else
  26         return 1;
  27     }
  28   while (a_elt && b_elt)
  29     {
  30       if (a_elt->indx < b_elt->indx)
  31         a_elt = a_elt->next;
  32     }
  33   if (a->indx == a->current->indx)
  34     bar ();
  35   return 0;
  36 }
  37
  38 /* { dg-final { scan-assembler-not "avx_vzeroupper" } } */