------- Additional Comments From hjl at lucon dot org 2005-08-12 21:51 -------
For some reason, ldmxcsr doesn't work on your machine. The assembly code looks
correct to me. I don't have any problems on IA32. I can only assume that you
have a hardware or OS related issue. Can you verify if ldmxcsr works on your
machine?
[EMAIL PROTECTED] tmp]$ cat x.c
#define MXCSR_DAZ (1 << 6) /* Enable denormals are zero mode */
#define MXCSR_FTZ (1 << 15) /* Enable flush to zero mode */
int
main (void)
{
{
unsigned int mxcsr = __builtin_ia32_stmxcsr ();
mxcsr |= MXCSR_DAZ | MXCSR_FTZ;
__builtin_ia32_ldmxcsr (mxcsr);
}
return 0;
}
[EMAIL PROTECTED] tmp]$ gcc x.c
[EMAIL PROTECTED] tmp]$ ./a.out
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23360
