incorrect warning

[Ulrich Drepper]

Hi,

this little piece of code (Intel specific, but you get the idea how to
do it on other platforms) produces a warning which isn't correct and
cannot be avoided:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$ cat u.c
int
main ()
{
  register int ebp asm ("ebp");
  return ebp != 0;
}
$ gcc -Wall -O -o u u.c
u.c: In function `main':
u.c:4: warning: `ebp' might be used uninitialized in this function
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

One cannot assign to the variable and therefore gcc should not print
the warning at all.

-- 
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Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
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