[Bug c++/35652] [4.3/4.4/4.5 Regression] offset warning should be given in the front-end

[jakub at gcc dot gnu dot org]

------- Comment #34 from jakub at gcc dot gnu dot org  2009-12-20 18:50 -------
It was warning too much, even about if (0) code, so it broke a lot of valid
code with -Werror, including stuff like:
#include <string.h>
int f (char *s)
{
  return strcmp (s, "");
}
If a warning like this is to be done by the FE, it would need to be only queued
in the IL and emitted only if it survived at least some initial DCE.  Perhaps
in a form of an artificial __builtin_warning, or something similar.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35652