On Thu, 3 Sep 2026 04:59:32 GMT, Quan Anh Mai <[email protected]> wrote:
>> Hi, >> >> This PR implements addition and subtraction of 128-bit integers in C2. This >> may have numerous applications: >> >> - It helps intrinsification of operations on 128-bit integers when we have >> one. >> - It allows computation that may be incorrect at `long` due to overflow, >> such as loop predication of long range checks. >> >> By implementing this separately, we don't need to worry about finalizing a >> public API, and we can have a better testing coverage. >> >> Testing: >> >> - [x] tier1-4,hs-comp-stress >> >> Please take a look and leave your review, thanks a lot. >> >> --------- >> - [x] I confirm that I make this contribution in accordance with the >> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). > > Quan Anh Mai has updated the pull request with a new target base due to a > merge or a rebase. The pull request now contains eight commits: > > - Merge branch 'master' into int128 > - Use TypeTuple::LONG_PAIR > - Merge branch 'master' into int128 > - C++17 > - Merge branch 'master' into int128 > - Merge branch 'master' into int128 > - whitespace > - Implement Int128T addsub Yes, the "T" in "I128T" is similar to `int32_t` and `int64_t`. The reason is that I want the suffix to end with a letter, so that if we implement `CmpL3` for `int128_t`, its name become `CmpI128T3` instead of `CmpI1283`. ------------- PR Comment: https://git.openjdk.org/jdk/pull/31008#issuecomment-5521911726
