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| author | Ulrich Drepper <drepper@redhat.com> | 2000-10-07 22:28:05 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2000-10-07 22:28:05 +0000 |
| commit | 9b767d19e6f76c10bb0486c113f28145fdd850e5 (patch) | |
| tree | caf551d34b76bb965f7a4861057670a19f71b43b /sysdeps/ia64/fpu | |
| parent | 19e89d15a12b23d3737991e9b2f094445b2123fa (diff) | |
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Update.
2000-10-07 Ulrich Drepper <drepper@redhat.com>
* include/features.h (__STDC_ISO_10646__): Set to correct date.
Patch by Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>.
2000-10-06 Jes Sorensen <jes@linuxcare.com>
* sysdeps/ia64/fpu/fraiseexcpt.c (feraiseexcept): Implement
overflow generation by adding DBL_MAX to DBL_MAX instead of
setting the bits manually in the fpsr and generating the exception
with kill() if necessary.
(feraiseexcept): Implement underflow by dividing DBL_MIN by
DBL_MIN - similar to the overflow change described above.
2000-08-27 H.J. Lu <hjl@gnu.org>
* sysdeps/unix/sysv/linux/ia64/clone.S: Make it a dummy as clone
is not supported under Linux/ia64, use clone2.
2000-10-06 Jakub Jelinek <jakub@redhat.com>
* malloc/malloc.h (__THROW): Define to nothing if not gcc.
* misc/sys/cdefs.h (__THROW): Likewise.
Diffstat (limited to 'sysdeps/ia64/fpu')
| -rw-r--r-- | sysdeps/ia64/fpu/fraiseexcpt.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/sysdeps/ia64/fpu/fraiseexcpt.c b/sysdeps/ia64/fpu/fraiseexcpt.c index 78a881117e..57111a94cf 100644 --- a/sysdeps/ia64/fpu/fraiseexcpt.c +++ b/sysdeps/ia64/fpu/fraiseexcpt.c @@ -51,35 +51,20 @@ feraiseexcept (int excepts) if (FE_DIVBYZERO & excepts) __asm__ __volatile__ ("frcpa.s0 %0,p1=f1,f0" : "=f" (tmp) : : "p1" ); - /* XXX There seem to be no reliable way to generate - overflow/underflow exceptions without causing inexact exceptions - as well. */ /* Next: overflow. */ if (FE_OVERFLOW & excepts) { - __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); - fpsr |= (FE_OVERFLOW << 13); - __asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r" (fpsr)); + dummy = DBL_MAX; - if (!((unsigned long int) fpsr & FE_OVERFLOW)) - { - pid_t pid = getpid (); - kill (pid, SIGFPE); - } + __asm__ __volatile__ ("fadd.d.s0 %0=%1,%1" : "=f" (dummy) : "0" (dummy)); } /* Next: underflow. */ if (FE_UNDERFLOW & excepts) { - __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); - fpsr |= (FE_UNDERFLOW << 13); - __asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r" (fpsr)); + dummy = DBL_MIN; - if (!((unsigned long int) fpsr & FE_UNDERFLOW)) - { - pid_t pid = getpid(); - kill (pid, SIGFPE); - } + __asm__ __volatile__ ("fnma.d.s0 %0=%1,%1,f0" : "=f" (tmp) : "f" (dummy)); } /* Last: inexact. */ |