GitHub-Proxy/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2025-07-20 11:54:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix bug in Erfc introduced in !1862.

Browse Source
This commit is contained in:
Rasmus Munk Larsen 2025-07-18 17:58:48 -07:00
parent 97c7cc6200
commit b5bef9dcb0
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
unsupported/Eigen/src/SpecialFunctions/SpecialFunctionsImpl.h
View File

@ -323,7 +323,7 @@ EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE T generic_fast_erfc<float>::run(const T& x
const T num = ppolevl<T, 3>::run(q2, gamma); const T num = ppolevl<T, 3>::run(q2, gamma);
const T denom = pmul(x, ppolevl<T, 4>::run(q2, delta)); const T denom = pmul(x, ppolevl<T, 4>::run(q2, delta));
const T r = pdiv(num, denom); const T r = pdiv(num, denom);
const T maybe_two = pand(pcmp_lt(x, pset1<T>(0.0)), pset1<T>(2.0)); const T maybe_two = pselect(pcmp_lt(x, pset1<T>(0.0)), pset1<T>(2.0), pset1<T>(0.0));
const T erfc_large = pmadd(z, r, maybe_two); const T erfc_large = pmadd(z, r, maybe_two);
return pselect(x_abs_gt_one_mask, erfc_large, erfc_small); return pselect(x_abs_gt_one_mask, erfc_large, erfc_small);
} }
@ -397,7 +397,7 @@ EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE T erfc_double_large(const T& x, const T& x
const T num_large = ppolevl<T, 9>::run(q2, gamma); const T num_large = ppolevl<T, 9>::run(q2, gamma);
const T denom_large = pmul(x, ppolevl<T, 9>::run(q2, delta)); const T denom_large = pmul(x, ppolevl<T, 9>::run(q2, delta));
const T r = pdiv(num_large, denom_large); const T r = pdiv(num_large, denom_large);
const T maybe_two = pand(pcmp_lt(x, pset1<T>(0.0)), pset1<T>(2.0)); const T maybe_two = pselect(pcmp_lt(x, pset1<T>(0.0)), pset1<T>(2.0), pset1<T>(0.0));
return pmadd(z, r, maybe_two); return pmadd(z, r, maybe_two);
} }