[RTEMS Project] #4522: Optimize red-black tree insert/extract

[RTEMS trac]

#4522: Optimize red-black tree insert/extract
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  Reporter:  Sebastian Huber  |      Owner:  Sebastian Huber
      Type:  enhancement      |     Status:  assigned
  Priority:  normal           |  Milestone:  6.1
 Component:  tool/newlib      |    Version:  6
  Severity:  normal           |   Keywords:  qualification
Blocked By:                   |   Blocking:
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 Code coverage analysis of the red-black tree insert/extract operations
 defined
 in <sys/tree.h> showed that the macros contain dead code.  To fix this
 simplify some expressions and add specialized rotations:

 https://sourceware.org/pipermail/newlib/2021/018599.html

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Ticket URL: <http://devel.rtems.org/ticket/4522>
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