gcc/testsuite/gcc.dg/tree-ssa/pr20739.c

   1 /* PR middle-end/20739 */
   2
   3 /* dg-do compile */
   4 /* dg-options "-O" */
   5
   6 /* We used to fail to compile this because gimplification dropped the
   7    conversion that added the const qualifier to the sub-expression
   8    involving baz, and then immediately noticed and reported its
   9    absence.  */
  10
  11 typedef struct
  12 {
  13     char chars[5];
  14 }
  15 baz_t;
  16
  17 extern baz_t * baz;
  18
  19 extern void foo (baz_t);
  20 int
  21 bar (const baz_t * ls)
  22 {
  23     foo (ls == 0 ? *(&baz[0]) : *ls);
  24 }