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Keith Packard d128bb40be libm/math: Use __math_xflow in obsolete math code [v2] 
C compilers may fold const values at compile time, so expressions
which try to elicit underflow/overflow by performing simple
arithemetic on suitable values will not generate the required
exceptions.

Work around this by replacing code which does these arithmetic
operations with calls to the existing __math_xflow functions that are
designed to do this correctly.

Signed-off-by: Keith Packard <keithp@keithp.com>

----

v2:
	libm/math: Pass sign to __math_xflow instead of muliplying result
2020-10-14 10:54:25 -04:00
..
acoshl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
acosl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
asinhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
asinl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
atan2l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
atanhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
atanl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
cbrtl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
ceill.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
copysignl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
cosf.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
coshl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
cosl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
erfcl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
erfl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
exp2.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
exp2l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
exp_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
exp.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
expl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
expm1l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fabsl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fdiml.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fdlibm.h
Remove matherr, and SVID and X/Open math library configurations
2019-01-23 10:46:24 +01:00
floorl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fmal.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fmaxl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fminl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
fmodl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
frexpl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
hypotl.c
Remove HUGE_VAL definition from libm math functions
2019-01-23 10:46:30 +01:00
ilogbl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
isgreater.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
ldexpl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
lgammal.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
llrintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
llroundl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
local.h
2009-04-24 Jeff johnston <jjohnstn@redhat.com>
2009-04-24 22:49:55 +00:00
log1pl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
log2_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
log2.c
Typo in license terms for newlib/libm/common/log2.c
2020-10-14 10:54:11 -04:00
log2l.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
log10l.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
log_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
log.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
logbl.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
logl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
lrintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
lroundl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
Makefile.am
Remove matherr, and SVID and X/Open math library configurations
2019-01-23 10:46:24 +01:00
Makefile.in
Remove matherr, and SVID and X/Open math library configurations
2019-01-23 10:46:24 +01:00
math_config.h
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
math_err.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
math_errf.c
libm/math: Use __math_xflow in obsolete math code [v2]
2020-10-14 10:54:25 -04:00
modfl.c
2013-11-19 Joel Sherrill <joel.sherrill@oarcorp.com>
2013-11-19 17:28:04 +00:00
nanl.c
Implement nanl in newlib only
2018-10-10 17:49:53 +02:00
nearbyintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
nextafterl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
nexttoward.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
nexttowardf.c
Use _LDBL_EQ_DBL in nexttowardf.c
2018-05-07 12:22:12 -04:00
nexttowardl.c
2014-12-15 Jonathan Roelofs <jonathan@codesourcery.com>
2014-12-15 20:50:23 +00:00
pow_log_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
pow.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
powl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
remainderl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
remquol.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
rintl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
roundl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
s_cbrt.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_copysign.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_exp10.c
Remove matherr, and SVID and X/Open math library configurations
2019-01-23 10:46:24 +01:00
s_expm1.c
Set errno in expm1{,f} / log1p{,f}
2020-10-14 10:53:55 -04:00
s_fdim.c
Fix error in fdim/f for infinities
2020-10-14 10:54:14 -04:00
s_finite.c
import newlib-2000-02-17 snapshot
2000-02-17 19:39:52 +00:00
s_fma.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_fmax.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_fmin.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_fpclassify.c
2007-04-25 Jeff Johnston <jjohnstn@redhat.com>
2007-04-25 22:28:19 +00:00
s_ilogb.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_infinity.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_isinf.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
s_isinfd.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
s_isnan.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_isnand.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
s_lib_ver.c
Remove matherr, and SVID and X/Open math library configurations
2019-01-23 10:46:24 +01:00
s_llrint.c
fix llrint and lrint for 52 <= exponent <= 62
2018-05-29 15:59:48 +02:00
s_llround.c
2010-08-03 Craig Howland <howland@LGSInnovations.com>
2010-08-03 18:21:20 +00:00
s_log1p.c
Set errno in expm1{,f} / log1p{,f}
2020-10-14 10:53:55 -04:00
s_log2.c
Remove matherr, and SVID and X/Open math library configurations
2019-01-23 10:46:24 +01:00
s_logb.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_lrint.c
fix llrint and lrint for 52 <= exponent <= 62
2018-05-29 15:59:48 +02:00
s_lround.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_modf.c
newlib/libm/common: Don't re-convert float to bits in modf/modff
2020-10-14 10:54:16 -04:00
s_nan.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_nearbyint.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_nextafter.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_pow10.c
Remove matherr, and SVID and X/Open math library configurations
2019-01-23 10:46:24 +01:00
s_remquo.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_rint.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_round.c
libm/common/s_round.c (round): Add cast for 16-bit CPUs
2018-06-21 09:31:13 +02:00
s_scalbln.c
* libm/common/s_fdim.c: New file.
2002-06-07 21:59:57 +00:00
s_scalbn.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_signbit.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
s_trunc.c
libm/common: remove TRAD_SYNOPSIS
2017-12-01 03:41:53 -06:00
scalblnl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
scalbnl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
sf_cbrt.c
* libc/include/machine/ieeefp.h: Comment about new configuration
2001-04-04 13:33:01 +00:00
sf_copysign.c
import newlib-2000-02-17 snapshot
2000-02-17 19:39:52 +00:00
sf_exp2_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_exp2.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_exp10.c
2007-05-17 Yaakov Selkowitz <yselkowitz <at> users.sourceforge.net>
2007-05-17 18:50:57 +00:00
sf_exp.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_expm1.c
Set errno in expm1{,f} / log1p{,f}
2020-10-14 10:53:55 -04:00
sf_fdim.c
Fix error in fdim/f for infinities
2020-10-14 10:54:14 -04:00
sf_finite.c
* libc/include/machine/ieeefp.h: Comment about new configuration
2001-04-04 13:33:01 +00:00
sf_fma.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_fmax.c
2005-08-10 Stephen Huw Clarke <stephen.clarke@st.com>
2005-08-10 21:02:28 +00:00
sf_fmin.c
2005-08-10 Stephen Huw Clarke <stephen.clarke@st.com>
2005-08-10 21:02:28 +00:00
sf_fpclassify.c
2007-04-25 Jeff Johnston <jjohnstn@redhat.com>
2007-04-25 22:28:19 +00:00
sf_ilogb.c
2010-02-11 Craig Howland <howland@LGSInnovations.com>
2010-02-11 21:00:33 +00:00
sf_infinity.c
import newlib-2000-02-17 snapshot
2000-02-17 19:39:52 +00:00
sf_isinf.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_isinff.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_isnan.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_isnanf.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sf_llrint.c
* libm/common/sf_llrint.c, libm/common/sf_round.c: Add explicit casts
2010-10-08 15:24:56 +00:00
sf_llround.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_log1p.c
libm: switch sf_log1p from double error routines to float
2020-10-14 10:54:05 -04:00
sf_log2_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_log2.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_log_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_log.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_logb.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_lrint.c
Add new binutils target: moxie
2009-04-16 15:39:46 +00:00
sf_lround.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_modf.c
newlib/libm/common: Don't re-convert float to bits in modf/modff
2020-10-14 10:54:16 -04:00
sf_nan.c
2014-03-21 Maciej W. Rozycki <macro@codesourcery.com>
2014-03-21 21:27:29 +00:00
sf_nearbyint.c
* libm/common/s_fdim.c: New file.
2002-06-07 21:59:57 +00:00
sf_nextafter.c
* libc/include/machine/ieeefp.h: Comment about new configuration
2001-04-04 13:33:01 +00:00
sf_pow10.c
2007-05-17 Yaakov Selkowitz <yselkowitz <at> users.sourceforge.net>
2007-05-17 18:50:57 +00:00
sf_pow_log2_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sf_pow.c
Fix powf overflow handling in non-nearest rounding mode
2018-12-10 16:51:05 +01:00
sf_remquo.c
2009-03-25 Craig Howland <howland@LGSInnovations.com>
2009-03-25 19:13:24 +00:00
sf_rint.c
2010-03-08 Craig Howland <howland@LGSInnovations.com>
2010-03-08 17:16:37 +00:00
sf_round.c
Throughout, run newlib with -Wall -Werror option and fix bugs and
2012-08-08 11:04:18 +00:00
sf_scalbln.c
* libm/common/s_fdim.c: New file.
2002-06-07 21:59:57 +00:00
sf_scalbn.c
* libc/include/machine/ieeefp.h: Comment about new configuration
2001-04-04 13:33:01 +00:00
sf_trunc.c
Fix truncf for sNaN input
2020-10-14 10:54:14 -04:00
sincosf_data.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sincosf.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sincosf.h
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sinf.c
Update Arm copyright notices in new math files
2018-09-28 11:03:55 +01:00
sinhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
sinl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
sl_finite.c
finitel: Use correct GCC builtin
2016-03-26 20:29:20 +01:00
sqrtl.c
newlib: fix various gcc warnings
2018-08-08 10:50:19 +02:00
tanhl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
tanl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
tgammal.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00
truncl.c
2009-04-17 Jeff johnston <jjohnstn@redhat.com>
2009-04-17 22:15:43 +00:00