gcc/testsuite/gcc.c-torture/compile/pr45535.c

   1 typedef struct {
   2     unsigned long pmd0;
   3     unsigned long pmd1;
   4 } pmd_t;
   5 typedef unsigned int pgd_t;
   6 struct mm_struct {
   7     pgd_t * pgd;
   8 };
   9 extern inline int pmd_bad(pmd_t pmd)
  10 {
  11 }
  12 extern inline void pmd_clear(pmd_t * pmdp)
  13 {
  14   ((*pmdp).pmd0) = 0x20 | 0x00;
  15   ((*pmdp).pmd1) = 0x20 | 0x00;
  16 }
  17 static inline void free_one_pmd(pmd_t * dir)
  18 {
  19   if (pmd_bad(*dir)) {
  20       pmd_clear(dir);
  21   }
  22 }
  23 static inline void free_one_pgd(pgd_t * dir)
  24 {
  25   int j;
  26   pmd_t * pmd;
  27   pmd = ((pmd_t *) ((unsigned long) (void *)(__pgd_val(dir) & (~((1UL << 12)-1)))) + (((0) >> 21) & (512 - 1)));
  28   for (j = 0; j < 512 ; j++) {
  29       free_one_pmd(pmd+j);
  30   }
  31 }
  32 void clear_page_tables(struct mm_struct *mm, unsigned long first, int nr)
  33 {
  34   pgd_t * page_dir = mm->pgd;
  35   do {
  36       free_one_pgd(page_dir);
  37   } while (--nr);
  38 }