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226 Commits

Author SHA1 Message Date
Gael Guennebaud
41052f63b7 same for pmax 2018-11-28 17:17:28 +01:00
Gael Guennebaud
3e95e398b6 pmin/pmax o SSE: make sure to use AVX instruction with AVX enabled, and disable gcc workaround for fixed gcc versions 2018-11-28 17:14:20 +01:00
Eugene Zhulenev
80f1651f35 Use explicit packet type in SSE/PacketMath pldexp 2018-11-27 17:25:49 -08:00
Gael Guennebaud
b131a4db24 bug #1631: fix compilation with ARM NEON and clang, and cleanup the weird pshiftright_and_cast and pcast_and_shiftleft functions. 2018-11-27 23:45:00 +01:00
Gael Guennebaud
a1a5fbbd21 Update pshiftleft to pass the shift as a true compile-time integer. 2018-11-27 22:57:30 +01:00
Gael Guennebaud
fa7fd61eda Unify SSE/AVX psin functions. 
It is based on the SSE version which is much more accurate, though very slightly slower.
This changeset also includes the following required changes:
 - add packet-float to packet-int type traits
 - add packet float<->int reinterpret casts
 - add faster pselect for AVX based on blendv
 2018-11-27 22:41:51 +01:00
Gael Guennebaud
7655a8af6e cleanup 2018-11-26 23:21:29 +01:00
Gael Guennebaud
502f92fa10 Unify SSE and AVX pexp for double. 2018-11-26 23:12:44 +01:00
Gael Guennebaud
cf8b85d5c5 Unify SSE and AVX implementation of pexp 2018-11-26 16:36:19 +01:00
Gael Guennebaud
2c44c40114 First step toward a unification of packet log implementation, currently only SSE and AVX are unified. 
To this end, I added the following functions: pzero, pcmp_*, pfrexp, pset1frombits functions.
 2018-11-26 14:21:24 +01:00
Gael Guennebaud
5f6045077c Make SSE/AVX pandnot(A,B) consistent with generic version, i.e., "A and not B" 2018-11-26 14:14:07 +01:00
Gael Guennebaud
de2efbc43c bug #1605: workaround ABI issue with vector types (aka __m128) versus scalar types (aka float) 2018-10-01 23:45:55 +02:00
Gael Guennebaud
8bdb214fd0 remove double ;; 2018-07-12 11:17:53 +02:00
Gael Guennebaud
7134fa7a2e Fix compilation with MSVC by reverting to char* for _mm_prefetch except for PGI (the later being the one that has the wrong prototype). 2018-06-07 09:33:10 +02:00
Gael Guennebaud
647b724a36 Define pcast<> for SSE types even when AVX is enabled. (otherwise float are silently reinterpreted as int instead of being converted) 2018-05-29 20:46:46 +02:00
Gael Guennebaud
49262dfee6 Fix compilation and SSE support with PGI compiler 2018-05-29 15:09:31 +02:00
luz.paz
e3912f5e63 MIsc. source and comment typos 
Found using `codespell` and `grep` from downstream FreeCAD
 2018-03-11 10:01:44 -04:00
Gael Guennebaud
b240080e64 bug #1436: fix compilation of Jacobi rotations with ARM NEON, some specializations of internal::conj_helper were missing. 2017-06-15 10:16:30 +02:00
Rasmus Munk Larsen
5e144bbaa4 Make NaN propagatation consistent between the pmax/pmin and std::max/std::min. This makes the NaN propagation consistent between the scalar and vectorized code paths of Eigen's scalar_max_op and scalar_min_op. 
See #1373 for details.
 2017-01-24 13:32:50 -08:00
Gael Guennebaud
5d00fdf0e8 bug #1363: fix mingw's ABI issue 2016-12-15 11:58:31 +01:00
Gael Guennebaud
178c084856 Disable usage of SSE3 _mm_hadd_ps that is extremely slow. 2016-11-22 21:53:14 +01:00
Gael Guennebaud
f3fb0a1940 Disable usage of SSE3 haddpd that is extremely slow. 2016-11-22 16:58:31 +01:00
Gael Guennebaud
598de8b193 Add pinsertfirst function and implement pinsertlast for complex on SSE/AVX. 2016-11-02 10:38:13 +01:00
Gael Guennebaud
aad72f3c6d Add missing inline keywords 2016-10-25 20:20:09 +02:00
Benoit Steiner
3e194a6a73 Fixed a typo 2016-10-25 08:42:15 -07:00
Gael Guennebaud
13fc18d3a2 Add a pinsertlast function replacing the last entry of a packet by a scalar. 
(useful to vectorize LinSpaced)
 2016-10-25 16:48:49 +02:00
Rasmus Munk Larsen
765615609d Update comment for fast sqrt. 2016-10-04 15:08:41 -07:00
Rasmus Munk Larsen
3ed67cb0bb Fix a bug in the implementation of Carmack's fast sqrt algorithm in Eigen (enabled by EIGEN_FAST_MATH), which causes the vectorized parts of the computation to return -0.0 instead of NaN for negative arguments. 
Benchmark speed in Giga-sqrts/s
Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz
-----------------------------------------
                    SSE        AVX
Fast=1              2.529G     4.380G
Fast=0              1.944G     1.898G
Fast=1 fixed        2.214G     3.739G

This table illustrates the worst case in terms speed impact: It was measured by repeatedly computing the sqrt of an n=4096 float vector that fits in L1 cache. For large vectors the operation becomes memory bound and the differences between the different versions almost negligible.
 2016-10-04 14:22:56 -07:00
Gael Guennebaud
471eac5399 bug #1195: move NumTraits::Div<>::Cost to internal::scalar_div_cost (with some specializations in arch/SSE and arch/AVX) 2016-09-08 08:36:27 +02:00
Gael Guennebaud
35a8e94577 bug #1167: simplify installation of header files using cmake's install(DIRECTORY ...) command. 2016-08-29 10:59:37 +02:00
Gael Guennebaud
b3151bca40 Implement pmadd for float and double to make it consistent with the vectorized path when FMA is available. 2016-08-23 14:24:08 +02:00
Gael Guennebaud
a4c266f827 Factorize the 4 copies of tanh implementations, make numext::tanh consistent with array::tanh, enable fast tanh in fast-math mode only. 2016-08-23 14:23:08 +02:00
Benoit Jacob
40a16282c7 Remove now-unused protate PacketMath func 2016-05-24 11:01:18 -04:00
Benoit Steiner
8ce46f9d89 Improved implementation of ptanh for SSE and AVX 2016-02-18 13:24:34 -08:00
Benoit Steiner
6d8b1dce06 Avoid implicit cast from double to float. 2016-02-10 18:07:11 -08:00
Benoit Steiner
bfb3fcd94f Optimized implementation of the tanh function for SSE 2016-02-10 08:52:30 -08:00
Benoit Jacob
e6ee18d6b4 Make the GCC workaround for sqrt GCC-only; detect Emscripten as non-GCC 2016-02-10 11:11:49 -05:00
Benoit Jacob
964a95bf5e Work around Emscripten bug - https://github.com/kripken/emscripten/issues/4088 2016-02-10 10:37:22 -05:00
Gael Guennebaud
c2bf2f56ef Remove custom unaligned loads for SSE. They were only useful for core2 CPU. 2016-02-08 14:29:12 +01:00
Gael Guennebaud
7cae8918c0 Fix compilation on old gcc+AVX 2016-01-21 20:30:32 +01:00
Gael Guennebaud
8dca9f97e3 Add numext::sqrt function to enable custom optimized implementation. 
This changeset add two specializations for float/double on SSE. Those
are mostly usefull with GCC for which std::sqrt add an extra and costly
check on the result of _mm_sqrt_*. Clang does not add this burden.

In this changeset, only DenseBase::norm() makes use of it.
 2016-01-21 20:18:51 +01:00
Gael Guennebaud
70404e07c2 Workaround clang -Wdocumentation warning about "/*<" 2015-12-30 16:46:45 +01:00
Gael Guennebaud
ae87f094eb Fix "," in non SSE4 mode 2015-11-05 12:08:36 +01:00
Alexandre Avenel
d46e2c10a6 Add round, ceil and floor for SSE4.1/AVX (Bug #70) 2015-11-01 10:49:27 +01:00
Gael Guennebaud
6163db814c bug #1085: workaround gcc default ABI issue 2015-10-10 22:38:55 +02:00
Gael Guennebaud
f047ecc36a _mm_hadd_epi32 is for SSSE3 only (and not SSE3) 2015-10-07 15:48:35 +02:00
Gael Guennebaud
2c676ddb40 Handle various TODOs in SSE vectorization (remove splitted storeu, enable SSE3 integer vectorization, plus minor tweaks) 2015-10-06 15:43:27 +02:00
Gael Guennebaud
6245591349 Fix prototype of plset and generalize linspace functor. 2015-08-07 19:27:59 +02:00
Gael Guennebaud
ce57dbd937 Let unpacket_traits<> exposes the required alignment and make use of it everywhere 2015-08-07 10:44:01 +02:00
Benoit Steiner
4fd7f47692 Added an optimized version of rsqrt for SSE and AVX that is used when EIGEN_FAST_MATH is defined. 2015-03-02 09:38:47 -08:00