Refs. numpy/numpy#18422

Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>

There appears to have been some code leak when copying from the COPY2x8
macro above where we're reading 8 bytes into d4-d7 directly after
reading 4 bytes into s4-s7. These 32 bytes in d4-7 are unused and can
possibly overrun the boundary of allocated memory -- Valgrind detected
this which is what dragged my attention to it for a 128,1 copy.

Additionally, there is no need to update the addresses stored in A0-A7
as the only possible paths after running this macro will overwrite A0-7
if looping to the next 8 rows, or overwrite A0-3 if moving to 4 rows --
in which case A4-7 are unused.

Fix double precision nrm2 kernels returning NaN when the
input vectors contain Inf/-Inf.

Optimize the performance of dot by using universal intrinsics in X86/ARM

Signed-off-by: ZhangDanfeng <467688405@qq.com>

Signed-off-by: ZhangDanfeng <467688405@qq.com>

Signed-off-by: ZhangDanfeng <467688405@qq.com>

Signed-off-by: zhangdanfeng <zhangdanfeng@cloudwalk.cn>

Signed-off-by: zhangdanfeng <zhangdanfeng@cloudwalk.cn>

Improve performance of DAXPY for ThunderX2
when the vector fits in L1 Cache.

use immediate initialization instead of multiplication in case register content is a NaN

The implementation is a hybird of the ARMV8 one with some of the
improved TX2 rountines along with specifying -march=v8.2-a

kernel/arm64/dgemm_beta.S: add beta == zero branch

added beta == zero branch, and no need to load C matrix.

Signed by: Xuqiang Chen <chenxuqiang3@hisilicon.com>

Use arm neon instructions to optimize sgemm_beta operation

[WIP] Use arm neon instructions to optimize tcopy operation

modified:   KERNEL.ARMV8
	modified:   KERNEL.TSV110
	new file:   sgemm_ncopy_4.S

... which does not perform the automatic numbering on instantiation that the _@ suffix signifies

as trivial copies of the respective ?asum kernels with the fabs calls removed

add HiSilicon tsv110 CPUs  optimization branch

The Makefile variable parser in utils.cmake currently does not handle conditionals. Having the definitions for non-OSX last will at least make cmake builds work again on non-OSX platforms.