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glibc/manual
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Joseph Myers b55b28e657 Allow spurious underflow / inexact for ldbl-128ibm. 
A large number of the test-ldouble failures seen for ldbl-128ibm are
spurious "underflow" and "inexact" exceptions.  These arise from such
exceptions in the underlying arithmetic; unlike other spurious
exceptions from that arithmetic, they do not in general relate to
cases where the returned result is also substantially inaccurate, are
not so readily avoidable by appropriately conditional libgcc patches,
and are widespread enough to be hard to handle through individual
XFAILing of the affected tests.

Thus, this patch documents relaxed accuracy goals for libm functions
for IBM long double and makes libm-test.inc reflect these spurious
exceptions in ldbl-128ibm arithmetic and always allow them in
ldbl-128ibm testing (while still not allowing these exceptions to be
missing where required to be present).  Tested for powerpc.

	* manual/math.texi (Errors in Math Functions): Document relaxed
	accuracy goals for IBM long double.
	* math/libm-test.inc (test_exceptions): Always allow spurious
	"underflow" and "inexact" exceptions for IBM long double.
2016-03-10 23:48:46 +00:00
..
examples Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
argp.texi manual/argp.texi (Specifying Argp Parsers): Fix typo. 2015-10-14 11:49:58 -04:00
arith.texi Fix two spaces after sentence. 2014-02-26 23:27:38 +01:00
charset.texi Fix two spaces after sentence. 2014-02-26 23:27:38 +01:00
check-safety.sh Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
conf.texi * manual/conf.texi: Document MTASC-safety properties. 2014-01-29 05:26:47 -02:00
contrib.texi glibc 2.21 pre-release update. 2015-02-05 23:14:38 -05:00
creature.texi Remove _BSD_SOURCE and _SVID_SOURCE. 2014-02-11 23:40:07 +00:00
crypt.texi * manual/crypt.texi: Document MTASC-safety properties. 2014-01-29 05:27:54 -02:00
ctype.texi * manual/ctype.texi: Document MTASC-safety properties. 2014-01-31 23:14:14 -02:00
debug.texi * manual/debug.texi: Document MTASC-safety properties. 2014-01-30 18:50:57 -02:00
dir
errno.texi manual: complete example in error message documentation 2015-03-06 00:59:49 -05:00
fdl-1.3.texi
filesys.texi Deprecate readdir_r, readdir64_r [BZ #19056] 2016-02-20 12:56:55 +01:00
freemanuals.texi Update to canonical freemanuals.texi file. 2013-09-24 14:06:56 -07:00
getopt.texi * manual/getopt.texi: Document MTASC-safety properties. 2014-01-31 23:16:56 -02:00
header.texi
install-plain.texi BZ #15941: Fix INSTALL file regeneration failure with makeinfo 5.x 2013-12-05 09:58:20 +05:30
install.texi Require Linux 3.2 except on x86 / x86_64, 3.2 headers everywhere. 2016-02-24 17:15:12 +00:00
intro.texi manual: Sort overview listing by manual order. 2014-04-17 19:41:09 -04:00
io.texi
ipc.texi manual/ipc.texi: Fix AC-safety notes. 2014-04-08 17:12:15 -04:00
job.texi ctermid: return string literal, document MT-Safety pitfall 2014-11-21 02:16:02 -02:00
lang.texi Split large string section; add truncation advice 2015-12-10 08:29:30 -08:00
lgpl-2.1.texi
libc-texinfo.sh Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
libc.texinfo Fix doc quoting problems with Texinfo 5 2016-01-10 00:20:51 -08:00
libcbook.texi
libdl.texi * manual/libdl.texi: New. 2014-01-31 23:23:59 -02:00
libm-err-tab.pl Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
llio.texi Fix exponents in manual. 2015-08-20 09:43:50 +02:00
locale.texi Split large string section; add truncation advice 2015-12-10 08:29:30 -08:00
macros.texi Fix exponents in manual. 2015-08-20 09:43:50 +02:00
maint.texi Fix two spaces after sentence. 2014-02-26 23:27:38 +01:00
Makefile Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
math.texi Allow spurious underflow / inexact for ldbl-128ibm. 2016-03-10 23:48:46 +00:00
memory.texi malloc: Remove max_total_mem member form struct malloc_par 2016-02-19 17:07:04 +01:00
message.texi Fix two spaces after sentence. 2014-02-26 23:27:38 +01:00
nss.texi Document best practice for disconnected NSS modules. 2015-12-10 00:48:15 -05:00
nsswitch.texi
pattern.texi Avoid SIGFPE in wordexp [BZ #18100] 2015-03-23 16:12:38 +01:00
pipe.texi * manual/pipe.texi: Document MTASC-safety properties. 2014-01-31 23:37:28 -02:00
platform.texi PowerPC: Extend Program Priority Register support 2015-08-19 17:43:26 -03:00
probes.texi Fix two spaces after sentence. 2014-02-26 23:27:38 +01:00
process.texi Add a new "Inter-Process Communication" chapter. 2014-02-26 11:05:09 -05:00
resource.texi Fix typo in manual. 2014-06-05 01:13:04 +02:00
search.texi manual: Correct guarantee about pointers compared by qsort() 2014-12-21 14:11:32 +01:00
setjmp.texi manual/setjmp.texi: Clarify setcontext and signal handlers text 2014-04-17 11:40:36 +01:00
signal.texi Fix crossreference to nonexistent node BSD Handler 2014-11-18 11:19:20 +01:00
socket.texi Fix two spaces after sentence. 2014-02-26 23:27:38 +01:00
startup.texi Remove _BSD_SOURCE and _SVID_SOURCE. 2014-02-11 23:40:07 +00:00
stdio-fp.c
stdio.texi Split large string section; add truncation advice 2015-12-10 08:29:30 -08:00
string.texi Split large string section; add truncation advice 2015-12-10 08:29:30 -08:00
summary.awk Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysinfo.texi Make obsolete syscall wrappers into compat symbols (bug 18472). 2015-12-14 22:52:15 +00:00
syslog.texi * manual/syslog.texi: Document MTASC-safety properties. 2014-02-01 01:22:09 -02:00
terminal.texi * manual/terminal.texi: Document MTASC-safety properties. 2014-02-01 03:53:15 -02:00
texinfo.tex Update miscellaneous files from upstream sources. 2016-01-05 18:04:06 +00:00
texis.awk
threads.texi Remove CPU set size checking from affinity functions [BZ #19143] 2015-11-24 17:21:01 +01:00
time.texi * manual/time.texi (TZ Variable): glibc no longer comes with tzdata. 2015-02-16 15:32:34 -08:00
tsort.awk Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00
users.texi manual: cuserid is mtasurace if not passed a string 2014-11-21 02:15:09 -02:00
xtract-typefun.awk Make shebang interpreter directives consistent 2016-01-07 04:03:21 -05:00