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-rw-r--r--third_party/eigen3/Eigen/src/Core/arch/NEON/MathFunctions.h91
1 files changed, 0 insertions, 91 deletions
diff --git a/third_party/eigen3/Eigen/src/Core/arch/NEON/MathFunctions.h b/third_party/eigen3/Eigen/src/Core/arch/NEON/MathFunctions.h
deleted file mode 100644
index 6bb05bb922..0000000000
--- a/third_party/eigen3/Eigen/src/Core/arch/NEON/MathFunctions.h
+++ /dev/null
@@ -1,91 +0,0 @@
-// This file is part of Eigen, a lightweight C++ template library
-// for linear algebra.
-//
-// This Source Code Form is subject to the terms of the Mozilla
-// Public License v. 2.0. If a copy of the MPL was not distributed
-// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-/* The sin, cos, exp, and log functions of this file come from
- * Julien Pommier's sse math library: http://gruntthepeon.free.fr/ssemath/
- */
-
-#ifndef EIGEN_MATH_FUNCTIONS_NEON_H
-#define EIGEN_MATH_FUNCTIONS_NEON_H
-
-namespace Eigen {
-
-namespace internal {
-
-template<> EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS EIGEN_UNUSED
-Packet4f pexp<Packet4f>(const Packet4f& _x)
-{
- Packet4f x = _x;
- Packet4f tmp, fx;
-
- _EIGEN_DECLARE_CONST_Packet4f(1 , 1.0f);
- _EIGEN_DECLARE_CONST_Packet4f(half, 0.5f);
- _EIGEN_DECLARE_CONST_Packet4i(0x7f, 0x7f);
- _EIGEN_DECLARE_CONST_Packet4f(exp_hi, 88.3762626647950f);
- _EIGEN_DECLARE_CONST_Packet4f(exp_lo, -88.3762626647949f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_LOG2EF, 1.44269504088896341f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_C1, 0.693359375f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_C2, -2.12194440e-4f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_p0, 1.9875691500E-4f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_p1, 1.3981999507E-3f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_p2, 8.3334519073E-3f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_p3, 4.1665795894E-2f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_p4, 1.6666665459E-1f);
- _EIGEN_DECLARE_CONST_Packet4f(cephes_exp_p5, 5.0000001201E-1f);
-
- x = vminq_f32(x, p4f_exp_hi);
- x = vmaxq_f32(x, p4f_exp_lo);
-
- /* express exp(x) as exp(g + n*log(2)) */
- fx = vmlaq_f32(p4f_half, x, p4f_cephes_LOG2EF);
-
- /* perform a floorf */
- tmp = vcvtq_f32_s32(vcvtq_s32_f32(fx));
-
- /* if greater, substract 1 */
- Packet4ui mask = vcgtq_f32(tmp, fx);
- mask = vandq_u32(mask, vreinterpretq_u32_f32(p4f_1));
-
- fx = vsubq_f32(tmp, vreinterpretq_f32_u32(mask));
-
- tmp = vmulq_f32(fx, p4f_cephes_exp_C1);
- Packet4f z = vmulq_f32(fx, p4f_cephes_exp_C2);
- x = vsubq_f32(x, tmp);
- x = vsubq_f32(x, z);
-
- Packet4f y = vmulq_f32(p4f_cephes_exp_p0, x);
- z = vmulq_f32(x, x);
- y = vaddq_f32(y, p4f_cephes_exp_p1);
- y = vmulq_f32(y, x);
- y = vaddq_f32(y, p4f_cephes_exp_p2);
- y = vmulq_f32(y, x);
- y = vaddq_f32(y, p4f_cephes_exp_p3);
- y = vmulq_f32(y, x);
- y = vaddq_f32(y, p4f_cephes_exp_p4);
- y = vmulq_f32(y, x);
- y = vaddq_f32(y, p4f_cephes_exp_p5);
-
- y = vmulq_f32(y, z);
- y = vaddq_f32(y, x);
- y = vaddq_f32(y, p4f_1);
-
- /* build 2^n */
- int32x4_t mm;
- mm = vcvtq_s32_f32(fx);
- mm = vaddq_s32(mm, p4i_0x7f);
- mm = vshlq_n_s32(mm, 23);
- Packet4f pow2n = vreinterpretq_f32_s32(mm);
-
- y = vmulq_f32(y, pow2n);
- return y;
-}
-
-} // end namespace internal
-
-} // end namespace Eigen
-
-#endif // EIGEN_MATH_FUNCTIONS_NEON_H