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Update.

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* sysdeps/i386/fpu/s_nextafterl.c (__nextafterl): Hopefully fix
	the handling of denormalized numbers.

	* math/test-misc.c (main): Test for fpclassify and pseudo denormal
	numbers on x86.
	* sysdeps/i386/fpu/fpclassifyl.c: New file.
This commit is contained in:
Ulrich Drepper 2000-12-04 04:56:36 +00:00
parent fd8f4d46f5
commit f8da88b080
2 changed files with 28 additions and 6 deletions
ChangeLog
sysdeps/i386/fpu
s_nextafterl.c

8
ChangeLog

@ -1,7 +1,11 @@
2000-12-03 Ulrich Drepper <drepper@redhat.com>
* math/test-misc.c (main): Test for pseudo denormal numbers on x86.
* sysdeps/i386/fpu/fpclassify.c: New file.
* sysdeps/i386/fpu/s_nextafterl.c (__nextafterl): Hopefully fix
the handling of denormalized numbers.
* math/test-misc.c (main): Test for fpclassify and pseudo denormal
numbers on x86.
* sysdeps/i386/fpu/fpclassifyl.c: New file.
* sysdeps/i386/ldbl2mpn.c (__mpn_extract_long_double): Handle the
pseudo denormal representation of LDBL_MIN.

26
sysdeps/i386/fpu/s_nextafterl.c

@ -59,8 +59,17 @@ static char rcsid[] = "$NetBSD: $";
if(ix>iy||((ix==iy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
/* x > y, x -= ulp */
if(lx==0) {
if (hx==0) esx -= 1;
hx -= 1;
if (hx <= 0x80000000) {
if (esx == 0)
hx = 0;
else {
esx -= 1;
hx = hx - 1;
if (esx > 0)
hx |= 0x80000000;
}
} else
hx -= 1;
}
lx -= 1;
} else { /* x < y, x += ulp */
@ -75,8 +84,17 @@ static char rcsid[] = "$NetBSD: $";
if(esy>=0||(ix>iy||((ix==iy)&&(hx>hy||((hx==hy)&&(lx>ly)))))){
/* x < y, x -= ulp */
if(lx==0) {
if (hx==0) esx -= 1;
hx -= 1;
if (hx <= 0x80000000) {
if (esx == 0)
hx = 0;
else {
esx -= 1;
hx = hx - 1;
if (esx > 0)
hx |= 0x80000000;
}
} else
hx -= 1;
}
lx -= 1;
} else { /* x > y, x += ulp */