[Bug tree-optimization/38835] field-insensitive PTA causes libstdc++ miscompiles

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-01-16 18:30 -------
  void *p;
  intptr_t iptr = (intptr_t)p - (intptr_t)&iptr;

of course.  Then this is just

(void *)((intptr_t)&iptr + (intptr_t)p - (intptr_t)&iptr)

<==>

(void *)(intptr_t)p

which is guaranteed by the std


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38835