gcc/testsuite/gcc.dg/attr-alloc_align-5.c

   1 /* PR c/78666 - conflicting attribute alloc_size accepted
   2    { dg-do compile }
   3    { dg-options "-Wall" } */
   4
   5 #define A(pos) __attribute__ ((alloc_align (pos)))
   6
   7 A (1) char* f2_1 (int, int);
   8 A (1) char* f2_1 (int, int);            // { dg-message "previous declaration here" }
   9
  10 A (2) char* f2_1 (int, int);            // { dg-warning "ignoring attribute 'alloc_align \\\(2\\\)' because it conflicts with previous 'alloc_align \\\(1\\\)'" }
  11
  12
  13 A (2) char* f2_2 (int, int);
  14 A (2) char* f2_2 (int, int);            // { dg-message "previous declaration here" }
  15
  16 A (1) char* f2_2 (int, int);            // { dg-warning "ignoring attribute 'alloc_align \\\(1\\\)' because it conflicts with previous 'alloc_align \\\(2\\\)'" }
  17
  18
  19 A (1) char* f3_1 (int, int, int);
  20 A (1) char* f3_1 (int, int, int);       // { dg-message "previous declaration here" }
  21
  22 A (2) char* f3_1 (int, int, int);       // { dg-warning "ignoring attribute 'alloc_align \\\(2\\\)' because it conflicts with previous 'alloc_align \\\(1\\\)'" }
  23 A (3) char* f3_1 (int, int, int);       // { dg-warning "ignoring attribute 'alloc_align \\\(3\\\)' because it conflicts with previous 'alloc_align \\\(1\\\)'" }