------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-16
14:16 -------
This is not a bug.
The code you gave is equivalant to as that is what inlining does (3.4 had a bug
in that it had an extra
overhead as you noticed, which you thought was a feature):
#define BUG_ON(x) asm volatile("tdnei %0,0" : : "r" (x));
int foo;
void baz()
{
BUG_ON(foo+1);
}
So it will pick the SImode (32bit part) for the "r" selector. If you want the
BUG_ON to take a signed
extended (DImode) for the "r", use something like the following:
#define BUG_ON(x) asm volatile("tdnei %0,0" : : "r" ((long long)x));
static inline int bar(int val)
{
return val + 1;
}
int foo;
void baz()
{
BUG_ON(bar(foo));
}
That will both work on 3.4 and 4.0.0 with no asm changes in both.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23422
