http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49233
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-31
05:42:05 UTC ---
Yeah,
static inline int variable_test_bit(int nr, volatile const unsigned long *addr)
{
int oldbit;
asm volatile("bt %2,%1\n\tsbb %0,%0" : "=r" (oldbit) : "m" (*(unsigned long
*)addr), "Ir" (nr));
return oldbit;
}
unsigned long *a;
int
foo (int n)
{
return variable_test_bit (n, a);
}
doesn't warn, so we need a small self-contained preprocessed testcase that
reproduces it.
