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authorUlrich Drepper <drepper@redhat.com>2003-12-07 21:22:46 +0000
committerUlrich Drepper <drepper@redhat.com>2003-12-07 21:22:46 +0000
commit07449987c90864fceb487994b4aaa5170803ab24 (patch)
tree76771090b9cb1866d55b5986c677e51dd768c3af /sysdeps/i386
parent64b02fd2f5fd5d2e2b7187b5e982fa6b59587500 (diff)
downloadglibc-07449987c90864fceb487994b4aaa5170803ab24.tar.gz
Update.
2003-12-07 Ulrich Drepper <drepper@redhat.com> * sysdeps/i386/fpu/s_nexttowardf.c: Construct overflow value correctly. * sysdeps/i386/fpu/s_nexttoward.c: Likewise. * sysdeps/ieee754/ldbl-128/s_nexttoward.c: Likewise. * sysdeps/ieee754/ldbl-96/s_nexttoward.c: Likewise. * math/Makefile (tests): Add bug-nexttoward. * math/bug-nexttowward.c: New file. * sysdeps/generic/s_nextafter.c: Make sure overflow exception is set. * sysdeps/ieee754/flt-32/s_nextafterf.c: Likewise. * math/bug-nextafter.c (main): Add tests for overflow and negative values.
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/fpu/s_nexttoward.c7
-rw-r--r--sysdeps/i386/fpu/s_nexttowardf.c7
2 files changed, 12 insertions, 2 deletions
diff --git a/sysdeps/i386/fpu/s_nexttoward.c b/sysdeps/i386/fpu/s_nexttoward.c
index 6b18df1532..2bd768e448 100644
--- a/sysdeps/i386/fpu/s_nexttoward.c
+++ b/sysdeps/i386/fpu/s_nexttoward.c
@@ -83,7 +83,12 @@ static char rcsid[] = "$NetBSD: $";
}
}
hy = hx&0x7ff00000;
- if(hy>=0x7ff00000) return x+x; /* overflow */
+ if(hy>=0x7ff00000) {
+ x = x+x; /* overflow */
+ /* Force conversion to double. */
+ asm ("" : "=m"(x) : "m"(x));
+ return x;
+ }
if(hy<0x00100000) { /* underflow */
double x2 = x*x;
if(x2!=x) { /* raise underflow flag */
diff --git a/sysdeps/i386/fpu/s_nexttowardf.c b/sysdeps/i386/fpu/s_nexttowardf.c
index 150641f335..3fbe53c338 100644
--- a/sysdeps/i386/fpu/s_nexttowardf.c
+++ b/sysdeps/i386/fpu/s_nexttowardf.c
@@ -67,7 +67,12 @@ static char rcsid[] = "$NetBSD: $";
}
}
hy = hx&0x7f800000;
- if(hy>=0x7f800000) return x+x; /* overflow */
+ if(hy>=0x7f800000) {
+ x = x+x; /* overflow */
+ /* Force conversion to float. */
+ asm ("" : "=m"(x) : "m"(x));
+ return x;
+ }
if(hy<0x00800000) { /* underflow */
float x2 = x*x;
if(x2!=x) { /* raise underflow flag */