chore, check for popcntintrin.h and also _mm_popcnt_u*() intrinsics

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, suffice to compile intrinsics

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, make second argument to SXE_CHECK_SIMD optional

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, also check for sad intrinsics

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, check for mm512 intrins too

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, include popcntintrin.h if detected

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
chore, always check sse sizes along with whether the int intrins are usable in glep-guts
chore, check for movemask intrins as well

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
minor, support mm512 intrinsics in glep-guts.c
Merge branch 'bld/dist'

* bld/dist:
  minor, support mm512 intrinsics in glep-guts.c
  chore, check for movemask intrins as well
  chore, always check sse sizes along with whether the int intrins are usable in glep-guts
  chore, include popcntintrin.h if detected
  minor, check for mm512 intrins too
  chore, also check for sad intrinsics
  chore, make second argument to SXE_CHECK_SIMD optional
  chore, suffice to compile intrinsics
  chore, check for popcntintrin.h and also _mm_popcnt_u*() intrinsics