[llvm] [TableGen] Use bitwise operations to access HwMode ID. (PR #88377)

[via llvm-commits]

superZWT123 wrote:

Hi @nvjle, Thank you very much for your review, I will respond as promptly as possible. My backend has 128-bit wide instructions, so my initial development was based on **APInt** mode. Later, the testing was switched to a 64-bit instruction backend, some issues were detected during the switching testing process, and I promptly fixed them. The functionality works correctly in both cases.

These days, I am also quite busy as the company has many development tasks that need my attention, so I can only allocate some spare time to modify this patch. Nonetheless, I am eager to contribute to the community and help drive improvements in this module.

As you mentioned, the changes in this patch are sensitive and have a wide impact, so there is no rush. I will proceed slowly to ensure the correctness of the features. Your review comments are crucial in this process, so once again, thank you~

https://github.com/llvm/llvm-project/pull/88377