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b376a11a19
glibc/sysdeps/x86_64
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Joseph Myers b376a11a19 Fix dbl-64 exp overflow/underflow in non-default rounding modes (bug 16284). 
The dbl-64 version of exp needs round-to-nearest mode for its internal
computations, but that has the consequence of inappropriate
overflowing and underflowing results in other rounding modes.  This
patch fixes this by recomputing the relevant results in cases where
the round-to-nearest result overflows to infinity or underflows to
zero (most of the diffs are actually just consequent reindentation).
Tests are enabled in all rounding modes for complex functions using
exp - but not for cexp because it turns out there are bugs causing
spurious underflows for cexp for some tests, which will need to be
fixed separately (I suspect ccos ccosh csin csinh ctan ctanh have
similar bugs, just not shown by the present set of test inputs).

Tested x86_64 and x86 and ulps updated accordingly.

	[BZ #16284]
	* sysdeps/ieee754/dbl-64/e_exp.c (__ieee754_exp): Use original
	rounding mode to recompute results that overflow to infinity or
	underflow to zero.
	* math/auto-libm-test-in: Don't mark tests as expected to fail for
	bug 16284.
	* math/auto-libm-test-out: Regenerated.
	* math/libm-test.inc (ccos_test): Use ALL_RM_TEST.
	(ccosh_test): Likewise.
	(csin_test_data): Use plus_oflow.
	(csin_test): Use ALL_RM_TEST.
	(csinh_test_data): Use plus_oflow.
	(csinh_test): Use ALL_RM_TEST.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-03-24 12:18:45 +00:00
..
64
bits Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fpu Fix dbl-64 exp overflow/underflow in non-default rounding modes (bug 16284). 2014-03-24 12:18:45 +00:00
multiarch Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
x32 Include generic symbol-hacks.h for x32 2014-01-20 11:11:01 -08:00
____longjmp_chk.S
__longjmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
_mcount.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
abort-instr.h
add_n.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
addmul_1.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
backtrace.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
bsd-_setjmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
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bzero.S
cacheinfo.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
configure Check AVX-512 assembler support first 2014-03-14 08:51:25 -07:00
configure.ac Check AVX-512 assembler support first 2014-03-14 08:51:25 -07:00
crti.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
crtn.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
dl-irel.h Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
dl-lookupcfg.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
dl-machine.h Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
dl-runtime.c
dl-tls.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
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dl-trampoline.h Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
dl-trampoline.S Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
ffs.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
ffsll.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
hp-timing.c
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htonl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Implies
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l10nflist.c
ldbl2mpn.c
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locale-defines.sym
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Makefile Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
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mp_clz_tab.c
mul_1.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
preconfigure rename configure.in to configure.ac 2013-10-30 17:32:08 +10:00
preconfigure.ac rename configure.in to configure.ac 2013-10-30 17:32:08 +10:00
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setjmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
stackinfo.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
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stpcpy_chk.S
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strcasecmp_l-nonascii.c
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tls-macros.h
tlsdesc.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tlsdesc.sym
tst-audit3.c
tst-audit4.c
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10.c Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
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tst-auditmod3a.c
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tst-auditmod5a.c
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tst-auditmod6a.c
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tst-auditmod6c.c
tst-auditmod7a.c
tst-auditmod7b.c
tst-auditmod10a.c Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
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tst-quad1.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
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