Corrects the erroneous assumption that CR-logical operation's operands
are always defined by a subreg copy.

Fixes https://github.com/llvm/llvm-project/issues/141643
Patch by Nemanja Ivanovic

These are identified by misc-include-cleaner.  I've filtered out those
that break builds.  Also, I'm staying away from llvm-config.h,
config.h, and Compiler.h, which likely cause platform- or
compiler-specific build failures.

- Remove calls to pass initialization from pass constructors.
- https://github.com/llvm/llvm-project/issues/111767

This reverts commit ff99af7ea03b3be46bec7203bd2b74048d29a52a.

Use nonstatic member instead. This requires explicit conversions, but
many will go away as we continue converting unsigned to Register.

In a few places where it was simple, I changed unsigned to Register.

This reverts commit ab58b6d58edf6a7c8881044fc716ca435d7a0156.
In `CodeGen/Generic/MachineBranchProb.ll`, `llc` crashed with dumped MIR
when targeting PowerPC. Move test to `llc/new-pm`, which is X86
specific.

Reverts llvm/llvm-project#96389
Some ppc bots failed.

Like IR version `print<branch-prob>`, there is also a
`print<machine-branch-prob>`.

Prepare for new pass manager version of `MachineDominatorTreeAnalysis`.
We may need a machine dominator tree version of `DomTreeUpdater` to
handle `SplitCriticalEdge` in some CodeGen passes.

Use isPhysical/isVirtual methods.