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[v6,0/2] eal: provide leading and trailing zero bit count abstraction

Message ID 1673380001-16558-1-git-send-email-roretzla@linux.microsoft.com (mailing list archive)
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Tyler Retzlaff Jan. 10, 2023, 7:46 p.m. UTC 
  v6:
  * remove stray #include <stdio.h>

v5:
  * fix implementation of msvc versions of rte_clz{32,64}
    incorrect use of _BitscanReverse{,64} index.
  * fix and expand unit test to exercise full range of counting
    over uint{32,64}_t input values. (which would have caught
    above mistake).
  * reduce commit title length
  * correct commit author

v4:
  * combine unit test commit into function addition commit

v3:
  * rename to use 32/64 instead of l/ll suffixes
  * add new functions to rte_bitops.h instead of new header
  * move other bit functions from rte_common.h to rte_bitops.h

v2:
  * use unsigned int instead of unsigned (checkpatches)
  * match multiple include guard naming convention to rte_common.h
  * add explicit extern "C" linkage to rte_bitcount.h
    note: not really needed but checkpatches required
  * add missing space around '-'

Tyler Retzlaff (2):
  eal: move bit operation common to bitops header
  eal: provide leading and trailing zero bit count abstraction

 app/test/meson.build            |   2 +
 app/test/test_bitcount.c        |  93 ++++++++
 app/test/test_common.c          |   1 +
 lib/eal/common/rte_reciprocal.c |   1 +
 lib/eal/include/rte_bitops.h    | 460 ++++++++++++++++++++++++++++++++++++++++
 lib/eal/include/rte_common.h    | 293 -------------------------
 6 files changed, 557 insertions(+), 293 deletions(-)
 create mode 100644 app/test/test_bitcount.c