diff options
author | Anton Samokhvalov <pg83@yandex.ru> | 2022-02-10 16:45:17 +0300 |
---|---|---|
committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:17 +0300 |
commit | d3a398281c6fd1d3672036cb2d63f842d2cb28c5 (patch) | |
tree | dd4bd3ca0f36b817e96812825ffaf10d645803f2 /contrib/libs/cxxsupp/builtins/ppc/multc3.c | |
parent | 72cb13b4aff9bc9cf22e49251bc8fd143f82538f (diff) | |
download | ydb-d3a398281c6fd1d3672036cb2d63f842d2cb28c5.tar.gz |
Restoring authorship annotation for Anton Samokhvalov <pg83@yandex.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/cxxsupp/builtins/ppc/multc3.c')
-rw-r--r-- | contrib/libs/cxxsupp/builtins/ppc/multc3.c | 180 |
1 files changed, 90 insertions, 90 deletions
diff --git a/contrib/libs/cxxsupp/builtins/ppc/multc3.c b/contrib/libs/cxxsupp/builtins/ppc/multc3.c index 327d625dc7..9dd79c975d 100644 --- a/contrib/libs/cxxsupp/builtins/ppc/multc3.c +++ b/contrib/libs/cxxsupp/builtins/ppc/multc3.c @@ -1,90 +1,90 @@ -/* This file is distributed under the University of Illinois Open Source - * License. See LICENSE.TXT for details. - */ - -#include "DD.h" -#include "../int_math.h" - -#define makeFinite(x) { \ - (x).s.hi = crt_copysign(crt_isinf((x).s.hi) ? 1.0 : 0.0, (x).s.hi); \ - (x).s.lo = 0.0; \ - } - -#define zeroNaN(x) { \ - if (crt_isnan((x).s.hi)) { \ - (x).s.hi = crt_copysign(0.0, (x).s.hi); \ - (x).s.lo = 0.0; \ - } \ - } - -long double _Complex -__multc3(long double a, long double b, long double c, long double d) -{ - long double ac = __gcc_qmul(a,c); - long double bd = __gcc_qmul(b,d); - long double ad = __gcc_qmul(a,d); - long double bc = __gcc_qmul(b,c); - - DD real = { .ld = __gcc_qsub(ac,bd) }; - DD imag = { .ld = __gcc_qadd(ad,bc) }; - - if (crt_isnan(real.s.hi) && crt_isnan(imag.s.hi)) - { - int recalc = 0; - - DD aDD = { .ld = a }; - DD bDD = { .ld = b }; - DD cDD = { .ld = c }; - DD dDD = { .ld = d }; - - if (crt_isinf(aDD.s.hi) || crt_isinf(bDD.s.hi)) - { - makeFinite(aDD); - makeFinite(bDD); - zeroNaN(cDD); - zeroNaN(dDD); - recalc = 1; - } - - if (crt_isinf(cDD.s.hi) || crt_isinf(dDD.s.hi)) - { - makeFinite(cDD); - makeFinite(dDD); - zeroNaN(aDD); - zeroNaN(bDD); - recalc = 1; - } - - if (!recalc) - { - DD acDD = { .ld = ac }; - DD bdDD = { .ld = bd }; - DD adDD = { .ld = ad }; - DD bcDD = { .ld = bc }; - - if (crt_isinf(acDD.s.hi) || crt_isinf(bdDD.s.hi) || - crt_isinf(adDD.s.hi) || crt_isinf(bcDD.s.hi)) - { - zeroNaN(aDD); - zeroNaN(bDD); - zeroNaN(cDD); - zeroNaN(dDD); - recalc = 1; - } - } - - if (recalc) - { - real.s.hi = CRT_INFINITY * (aDD.s.hi*cDD.s.hi - bDD.s.hi*dDD.s.hi); - real.s.lo = 0.0; - imag.s.hi = CRT_INFINITY * (aDD.s.hi*dDD.s.hi + bDD.s.hi*cDD.s.hi); - imag.s.lo = 0.0; - } - } - - long double _Complex z; - __real__ z = real.ld; - __imag__ z = imag.ld; - - return z; -} +/* This file is distributed under the University of Illinois Open Source + * License. See LICENSE.TXT for details. + */ + +#include "DD.h" +#include "../int_math.h" + +#define makeFinite(x) { \ + (x).s.hi = crt_copysign(crt_isinf((x).s.hi) ? 1.0 : 0.0, (x).s.hi); \ + (x).s.lo = 0.0; \ + } + +#define zeroNaN(x) { \ + if (crt_isnan((x).s.hi)) { \ + (x).s.hi = crt_copysign(0.0, (x).s.hi); \ + (x).s.lo = 0.0; \ + } \ + } + +long double _Complex +__multc3(long double a, long double b, long double c, long double d) +{ + long double ac = __gcc_qmul(a,c); + long double bd = __gcc_qmul(b,d); + long double ad = __gcc_qmul(a,d); + long double bc = __gcc_qmul(b,c); + + DD real = { .ld = __gcc_qsub(ac,bd) }; + DD imag = { .ld = __gcc_qadd(ad,bc) }; + + if (crt_isnan(real.s.hi) && crt_isnan(imag.s.hi)) + { + int recalc = 0; + + DD aDD = { .ld = a }; + DD bDD = { .ld = b }; + DD cDD = { .ld = c }; + DD dDD = { .ld = d }; + + if (crt_isinf(aDD.s.hi) || crt_isinf(bDD.s.hi)) + { + makeFinite(aDD); + makeFinite(bDD); + zeroNaN(cDD); + zeroNaN(dDD); + recalc = 1; + } + + if (crt_isinf(cDD.s.hi) || crt_isinf(dDD.s.hi)) + { + makeFinite(cDD); + makeFinite(dDD); + zeroNaN(aDD); + zeroNaN(bDD); + recalc = 1; + } + + if (!recalc) + { + DD acDD = { .ld = ac }; + DD bdDD = { .ld = bd }; + DD adDD = { .ld = ad }; + DD bcDD = { .ld = bc }; + + if (crt_isinf(acDD.s.hi) || crt_isinf(bdDD.s.hi) || + crt_isinf(adDD.s.hi) || crt_isinf(bcDD.s.hi)) + { + zeroNaN(aDD); + zeroNaN(bDD); + zeroNaN(cDD); + zeroNaN(dDD); + recalc = 1; + } + } + + if (recalc) + { + real.s.hi = CRT_INFINITY * (aDD.s.hi*cDD.s.hi - bDD.s.hi*dDD.s.hi); + real.s.lo = 0.0; + imag.s.hi = CRT_INFINITY * (aDD.s.hi*dDD.s.hi + bDD.s.hi*cDD.s.hi); + imag.s.lo = 0.0; + } + } + + long double _Complex z; + __real__ z = real.ld; + __imag__ z = imag.ld; + + return z; +} |