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Modernize C++14 usage and minor optimizations in Core

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libeigen/eigen!2143

Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
Co-authored-by: Rasmus Munk Larsen <rmlarsen@google.com>
This commit is contained in:
Rasmus Munk Larsen
2026-02-18 12:47:51 -08:00
parent f69745b678
commit e953f1e504
8 changed files with 72 additions and 140 deletions
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54
Eigen/src/Core/arch/Default/GenericPacketMathFunctions.h
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@@ -1072,14 +1072,23 @@ EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
// syms x;
// cosf = @(x) cos(x);
// pade_cosf = pade(cosf(x), x, 0, 'Order', 8)
Packet sc1_num = pmadd(ss, pset1<Packet>(80737373), pset1<Packet>(-13853547000));
Packet sc2_num = pmadd(sc1_num, ss, pset1<Packet>(727718024880));
Packet sc3_num = pmadd(sc2_num, ss, pset1<Packet>(-11275015752000));
Packet sc4_num = pmadd(sc3_num, ss, pset1<Packet>(23594700729600));
Packet sc1_denum = pmadd(ss, pset1<Packet>(147173), pset1<Packet>(39328920));
Packet sc2_denum = pmadd(sc1_denum, ss, pset1<Packet>(5772800880));
Packet sc3_denum = pmadd(sc2_denum, ss, pset1<Packet>(522334612800));
Packet sc4_denum = pmadd(sc3_denum, ss, pset1<Packet>(23594700729600));
const Packet cn4 = pset1<Packet>(80737373);
const Packet cn3 = pset1<Packet>(-13853547000);
const Packet cn2 = pset1<Packet>(727718024880);
const Packet cn1 = pset1<Packet>(-11275015752000);
const Packet cn0 = pset1<Packet>(23594700729600); // shared with cd0
const Packet cd3 = pset1<Packet>(147173);
const Packet cd2 = pset1<Packet>(39328920);
const Packet cd1 = pset1<Packet>(5772800880);
const Packet cd0 = pset1<Packet>(522334612800);
Packet sc1_num = pmadd(ss, cn4, cn3);
Packet sc2_num = pmadd(sc1_num, ss, cn2);
Packet sc3_num = pmadd(sc2_num, ss, cn1);
Packet sc4_num = pmadd(sc3_num, ss, cn0);
Packet sc1_denum = pmadd(ss, cd3, cd2);
Packet sc2_denum = pmadd(sc1_denum, ss, cd1);
Packet sc3_denum = pmadd(sc2_denum, ss, cd0);
Packet sc4_denum = pmadd(sc3_denum, ss, cn0);
Packet scos = pdiv(sc4_num, sc4_denum);
// Padé approximant of sin(x)
@@ -1090,15 +1099,26 @@ EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
// syms x;
// sinf = @(x) sin(x);
// pade_sinf = pade(sinf(x), x, 0, 'Order', 8, 'OrderMode', 'relative')
Packet ss1_num = pmadd(ss, pset1<Packet>(4585922449), pset1<Packet>(-1066023933480));
Packet ss2_num = pmadd(ss1_num, ss, pset1<Packet>(83284044283440));
Packet ss3_num = pmadd(ss2_num, ss, pset1<Packet>(-2303682236856000));
Packet ss4_num = pmadd(ss3_num, ss, pset1<Packet>(15605159573203200));
Packet ss1_denum = pmadd(ss, pset1<Packet>(1029037), pset1<Packet>(345207016));
Packet ss2_denum = pmadd(ss1_denum, ss, pset1<Packet>(61570292784));
Packet ss3_denum = pmadd(ss2_denum, ss, pset1<Packet>(6603948711360));
Packet ss4_denum = pmadd(ss3_denum, ss, pset1<Packet>(346781323848960));
Packet ssin = pdiv(pmul(s, ss4_num), pmul(pset1<Packet>(45), ss4_denum));
const Packet sn4 = pset1<Packet>(4585922449);
const Packet sn3 = pset1<Packet>(-1066023933480);
const Packet sn2 = pset1<Packet>(83284044283440);
const Packet sn1 = pset1<Packet>(-2303682236856000);
const Packet sn0 = pset1<Packet>(15605159573203200);
const Packet sd3 = pset1<Packet>(1029037);
const Packet sd2 = pset1<Packet>(345207016);
const Packet sd1 = pset1<Packet>(61570292784);
const Packet sd0_inner = pset1<Packet>(6603948711360);
const Packet sd0 = pset1<Packet>(346781323848960);
const Packet cst_45 = pset1<Packet>(45);
Packet ss1_num = pmadd(ss, sn4, sn3);
Packet ss2_num = pmadd(ss1_num, ss, sn2);
Packet ss3_num = pmadd(ss2_num, ss, sn1);
Packet ss4_num = pmadd(ss3_num, ss, sn0);
Packet ss1_denum = pmadd(ss, sd3, sd2);
Packet ss2_denum = pmadd(ss1_denum, ss, sd1);
Packet ss3_denum = pmadd(ss2_denum, ss, sd0_inner);
Packet ss4_denum = pmadd(ss3_denum, ss, sd0);
Packet ssin = pdiv(pmul(s, ss4_num), pmul(cst_45, ss4_denum));
Packet poly_mask = preinterpret<Packet>(pcmp_eq(pand(q_int, cst_one), pzero(q_int)));