[llvm] [TableGen][GlobalISel] Specialize more MatchTable Opcodes (PR #89736)

[Amara Emerson via llvm-commits]

aemerson wrote:

Here's some compile time measurements for CTMark building with -Os 10 times, it seems ClamAV failed to build, but overall seems there's a neutral/slight improvement:
```
Program                                       compile_time
                                              lhs          rhs    diff
consumer-typeset/consumer-typeset               3.58         3.58  0.0%
kimwitu++/kc                                    6.67         6.67  0.0%
lencod/lencod                                   4.65         4.65 -0.0%
7zip/7zip-benchmark                            14.78        14.77 -0.0%
SPASS/SPASS                                     4.56         4.56 -0.0%
mafft/pairlocalalign                            2.66         2.66 -0.0%
sqlite3/sqlite3                                 2.49         2.49 -0.0%
tramp3d-v4/tramp3d-v4                           5.69         5.68 -0.1%
Bullet/bullet                                  10.99        10.99 -0.1%
                           Geomean difference                     -0.0%
```

https://github.com/llvm/llvm-project/pull/89736