gcc/testsuite/gcc.dg/attr-alloc_align-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-optimized" } */
   3
   4 char *my_alloc1 (int len, int align) __attribute__((__alloc_align__ (2)));
   5 char *my_alloc2 (int align, int len) __attribute__((alloc_align (1)));
   6
   7 int
   8 test1 (int len)
   9 {
  10   int i;
  11   char *p = my_alloc1 (len, 32);
  12   return ((__INTPTR_TYPE__) p) & 31;
  13 }
  14
  15 int
  16 test2 (int len)
  17 {
  18   int i;
  19   char *p = my_alloc2 (32, len);
  20   return ((__INTPTR_TYPE__) p) & 31;
  21 }
  22
  23 int
  24 test3 (int len)
  25 {
  26   int i;
  27   char *p = my_alloc1 (len, 16);
  28   return ((__INTPTR_TYPE__) p) & 15;
  29 }
  30
  31 int
  32 test4 (int len)
  33 {
  34   int i;
  35   char *p = my_alloc2 (16, len);
  36   return ((__INTPTR_TYPE__) p) & 15;
  37 }
  38
  39 int
  40 test5 (int len, int align)
  41 {
  42   int i;
  43   char *p = my_alloc1 (len, align);
  44   return ((__INTPTR_TYPE__) p) & 15;
  45 }
  46
  47 int
  48 test6 (int len, int align)
  49 {
  50   int i;
  51   char *p = my_alloc2 (align, len);
  52   return ((__INTPTR_TYPE__) p) & 15;
  53 }
  54
  55 /* { dg-final { scan-tree-dump-times "return 0" 4 "optimized" } } */