gcc/testsuite/gcc.dg/tree-ssa/pr79697.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-tree-lower -fdump-tree-cddce-details -fdump-tree-optimized" } */
   3
   4 void f(void)
   5 {
   6   __builtin_strdup ("abc"); /* { dg-warning "ignoring return value of '__builtin_strdup' declared with attribute 'warn_unused_result'" } */
   7 }
   8
   9 void g(void)
  10 {
  11   __builtin_strndup ("abc", 3); /* { dg-warning "ignoring return value of '__builtin_strndup' declared with attribute 'warn_unused_result'" } */
  12 }
  13
  14 void h(void)
  15 {
  16   __builtin_realloc (0, 10); /* { dg-warning "ignoring return value of '__builtin_realloc' declared with attribute 'warn_unused_result'" } */
  17 }
  18
  19 /* { dg-final { scan-tree-dump "Deleting : __builtin_strdup" "cddce1" } } */
  20 /* { dg-final { scan-tree-dump "Deleting : __builtin_strndup" "cddce1" } } */
  21 /* { dg-final { scan-tree-dump "__builtin_malloc" "lower" } } */