The implementation in `riscv64/dot.c` fails the `test_dsdot` test, and
the generic kernel seems to have better precision. Tested on SiFive
FU740 (HiFive Unmatched) and QEMU.

Also see #1469.

Same as #1990.

GEMM: skylake: improve the performance when m is small

optimize on sgemv_n for small n

filter out -mavx flag on Sandybridge zgemm/ztrmm kernels

Support compilation with pre-C99 versions of MSVC

Update the intrinsic api to the offical name.

This patch uses vector pair pointer for input load operation
which helps to generate power10 lxvp instructions.

This patch makes use of Matrix-Multiply Assist (MMA)
feature introduced in POWER ISA v3.1 for zgemv_n and zgemv_t.

Remove Unnecessary/Erroneous Adds/Reads In sgemm_tcopy_16.S COPY1x8 Macro

This patch makes sure that recent POWER10 patches are used
only for little endian.

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.

Add workaround for LAPACK testsuite failures with the NVIDIA HPC compiler on PPC

Move x86_64 DOMATCOPY_RT back to the C implementation

This patch makes use of new POWER10 vector pair instructions for
loads and stores.

Replace spurious AVX512 requirement in the Haswell srot microkernel with an AVX2/FMA3 guard

This patch makes use of new POWER10 vector pair instructions for
loads and stores.

The LLVM and GCC teams agreed to rename the __builtin_mma_assemble_pair and
__builtin_mma_disassemble_pair built-ins to __builtin_vsx_assemble_pair and
__builtin_vsx_disassemble_pair respectively. This patch is to make
corresponding changes in dgemm kernel. Also made changes in
inputs to those builtins to avoid some potential typecasting issues.

Reference gcc commit id:77ef995c1fbcab76a2a69b9f4700bcfd005d8e62

as suggested by MigMuc in issue 2532