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[BOLT] Overhaul the comments in PAuthGadgetScanner for readability (NFC) (#169801)

Update the comments in PAuthGadgetScanner.cpp to better describe the
current version of the code. Along the way, shorten identifier names
that are redundant taking their context into account:
`RegsToTrackInstsFor` (made `RegsToTrack`) and `getNumTrackedRegisters`
(made `getNumRegisters`).

Co-authored-by: Kristof Beyls <kristof.beyls at arm.com>

[FileCheck] Create test to highlight the "more than 9 back-references" issue. (#173501)

When back-referencing more than 9 variables in a CHECK line, FileCheck
will fail.

I intend to fix this issue in a later PR by adjusting FileCheck.

minio: note that this is in maintenance mode

   Fix super-speed enablement by initializing the controller properly and
   then enabling USB3 support on the controller (instead of disabling it
   like we do right now).  This makes my umass(4) come up as super-speed
   instead of high-speed.

   ok kettenis@

   Update to cargo-insta 1.45.1

   https://github.com/mitsuhiko/insta/releases/tag/1.45.1

   hydan: comment out dead site

   hugs-HaXml: update HOMEPAGE

   html2ps: comment out dead site

   hplip: follow redirect

   hping3: comment out dead site

   hping: comment out betting site

positive values never denormal

Make KnownFPClass::exp not side-effecting

Use fcPositive

Remove redundant check

Use propagateNaN

InstCombine: Handle exp/exp2/exp10 in SimplifyDemandedFPClass

I'm working on optimizing out the tail sequences in the
implementations of the 4 different flavors of pow. These
include chains of selects on the various edge cases.

Related to #64870

InstCombine: Add baseline tests for exp SimplifyDemandedFPClass

Adjust comment

Remove broken nan handling

ValueTracking: Add baseline tests for computeKnownFPClass exp

This is already handled, but misses opportunities. Test cases
where the input is known positive or negative.

ValueTracking: Improve handling of exp intrinsic for overflow

Teach exp handling that positive inputs cannot introduce overflow,
and negative inputs cannot introduce underflow.

Make KnownFPClass::canonicalize not side-effecting

Address comment

InstCombine: Handle canonicalize in SimplifyDemandedFPClass

Doesn't try to handle PositiveZero flushing mode, but I
don't believe it is incorrect with it.

ValueTracking: log may never return -0 (#173380)

textproc/bookokrat: Add new port

Bookokrat is a terminal-based EPUB reader with a split-view library and reader,
full MathML and image rendering, automatic bookmarks, inline annotations, and
customizable themes.

What you can do:

  - Browse every EPUB in the current directory, drill into the table of
    contents, and resume exactly where you left off.
  - Search inside the current chapter or across the whole book, jump through a
    per-book history, and inspect reading statistics.
  - Highlight text, attach comments, copy snippets or entire chapters, and
    toggle the raw HTML source for debugging.
  - Open images in-place, follow internal anchors, launch external links in
    your browser, and hand off the book to your system viewer.
  - Customize with multiple color themes, adjustable margins, and zen mode;
    settings persist across sessions.

https://bugzmanov.github.io/bookokrat/index.html

   plasma6-kde-gtk-config: note dependency on sassc

graphics/linux-rl9-glx-utils: add Rocky Linux 9 version of glx-utils

   libktorrent: depend on boost-libs rather than boost-headers for cmake files