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glibc/sysdeps/i386
History
Joseph Myers 59a63cca11 Fix nexttoward overflow in non-default rounding modes (bug 19059). 
ISO C requires overflowing results from nexttoward to be the
appropriate infinity independent of the rounding mode, but some
implementations use a rounding-mode-dependent result (this is the same
issue as was fixed for nextafter in bug 16677).  This patch fixes the
problem by making the nexttoward implementations discard the result
from the floating-point computation that forced an overflow exception
and then return the infinity previously computed with integer
arithmetic.

Tested for x86_64, x86, mips64 and powerpc.

	[BZ #19059]
	* math/s_nexttowardf.c (__nexttowardf): Do not return value from
	overflowing computation.
	* sysdeps/i386/fpu/s_nexttoward.c (__nexttoward): Likewise.
	* sysdeps/i386/fpu/s_nexttowardf.c (__nexttowardf): Likewise.
	* sysdeps/ieee754/ldbl-128/s_nexttoward.c (__nexttoward):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c (__nexttoward):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-96/s_nexttoward.c (__nexttoward): Likewise.
	* sysdeps/ieee754/ldbl-96/s_nexttowardf.c (__nexttowardf):
	Likewise.
	* sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c (__nldbl_nexttowardf):
	Likewise.
	* math/libm-test.inc (nexttoward_test_data): Add more tests.
2015-10-02 17:11:13 +00:00
..
fpu Fix nexttoward overflow in non-default rounding modes (bug 19059). 2015-10-02 17:11:13 +00:00
i586 Detect and select i586/i686 implementation at run-time 2015-08-27 09:06:44 -07:00
i686 Avoid excess range in results from i386 exp, hypot, pow functions (bug 18980). 2015-09-18 21:53:22 +00:00
i786 Also applying directories. 1999-01-24 10:39:22 +00:00
nptl NPTL: swap comments for THREAD_SETMEM and THREAD_SETMEM_NC for i386 and x86_64 2015-03-28 00:44:22 -04:00
sys Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
____longjmp_chk.S Add sigstack handling to Linux ____longjmp_chk on i386. 2009-07-30 21:50:14 -07:00
__longjmp.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
abort-instr.h update from main archive 961220 1996-12-21 04:13:58 +00:00
add_n.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
asm-syntax.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
atomic-machine.h Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
backtrace.c Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912). 2015-09-08 21:11:03 +00:00
bcopy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
bzero.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
cacheinfo.c Use x86-64 cacheinfo.c and sysconf.c for x86 2015-08-19 04:27:04 -07:00
configure Preserve bound registers for pointer pass/return 2015-07-09 06:50:12 -07:00
configure.ac Preserve bound registers for pointer pass/return 2015-07-09 06:50:12 -07:00
crti.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
crtn.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dl-lookupcfg.h Add ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA to x86 2015-03-31 05:16:57 -07:00
dl-machine.h Add _dl_x86_cpu_features to rtld_global 2015-08-13 03:41:22 -07:00
dl-procinfo.c Add _dl_x86_cpu_features to rtld_global 2015-08-13 03:41:22 -07:00
dl-procinfo.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
dl-trampoline.S Preserve bound registers for pointer pass/return 2015-07-09 06:50:12 -07:00
ffs.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
gccframe.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
gmp-mparam.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
htonl.S Move i486/htonl.S to htonl.S 2015-08-27 07:50:34 -07:00
htons.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
i386-mcount.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Implies Use x86-64 bits/byteswap.h for both i386 and x86_64 2012-05-30 14:13:18 -07:00
init-arch.h Detect and select i586/i686 implementation at run-time 2015-08-27 09:06:44 -07:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ldbl2mpn.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
ldsodefs.h Add _dl_x86_cpu_features to rtld_global 2015-08-13 03:41:22 -07:00
link-defines.sym Preserve bound registers for pointer pass/return 2015-07-09 06:50:12 -07:00
lshift.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Makefile Don't disable SSE in x86-64 ld.so 2015-08-26 07:55:42 -07:00
memchr.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memcopy.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
memcpy_chk.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memcpy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memmove_chk.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memmove.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
mempcpy_chk.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
mempcpy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memset_chk.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memset.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memusage.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
mp_clz_tab.c Update. 2002-03-14 20:48:50 +00:00
mul_1.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
preconfigure Move base_machine and machine settings from configure.ac to sysdeps preconfigure fragments. 2014-06-25 17:52:56 +00:00
pthread_spin_trylock.S Move i486/pthread_spin_trylock.S to pthread_spin_trylock.S 2015-08-27 07:55:29 -07:00
rawmemchr.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
rshift.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
setfpucw.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
start.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
stpcpy.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
stpncpy.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcat.S Move i486/strcat.S to strcat.S 2015-08-27 07:56:41 -07:00
strchr.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strchrnul.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strcspn.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
string-inlines.c Move i486/string-inlines.c to string-inlines.c 2015-08-27 07:51:55 -07:00
strlen.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strlen.S Move i486/strlen.S to strlen.S 2015-08-27 07:57:55 -07:00
strpbrk.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strrchr.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strspn.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
strtok_r.S Remove remaining bounded-pointers support from i386 .S files. 2013-02-21 22:21:52 +00:00
strtok.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tls-macros.h i386: Fix build by GCC 5.0 2014-12-30 11:37:41 -08:00
tlsdesc.c Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tlsdesc.sym Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
tst-audit3.c Add a testcase for i386 LD_AUDIT 2015-07-07 05:09:30 -07:00
tst-audit3.h Add a testcase for i386 LD_AUDIT 2015-07-07 05:09:30 -07:00
tst-audit.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
tst-auditmod3a.c Add a testcase for i386 LD_AUDIT 2015-07-07 05:09:30 -07:00
tst-auditmod3b.c Add a missing break in tst-auditmod3b.c 2015-08-09 08:06:50 -07:00
tst-ld-sse-use.sh Don't disable SSE in x86-64 ld.so 2015-08-26 07:55:42 -07:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Versions Merge sysdeps/i386/elf/Versions into sysdeps/i386/Versions. 2012-03-19 21:02:40 +01:00