| commit | fe6daed58b44b5fc4871e1c3ed3b5ab28632a86a | [log] [tgz] |
|---|---|---|
| author | Aart Bik <ajcbik@google.com> | Fri Aug 10 17:48:24 2018 +0000 |
| committer | commit-bot@chromium.org <commit-bot@chromium.org> | Fri Aug 10 17:48:24 2018 +0000 |
| tree | b23deeac343fa58a23d8eb94626ced542d1027c8 | |
| parent | 508751c5b1dc50f519d63c6d35dafef080180a8a [diff] |
[vm/compiler] "fast"-path for x64 division Rationale: Since 64-bit division requires twice as many cycles and has much higher latency compared to the 32-bit division, even for a non-speculative 64-bit path, a 32-bit "fast path" makes sense. Speedup: About 2x for cases that fit 32-bits. No noticable slowdown for the 64-bit cases. https://github.com/flutter/flutter/issues/19677 https://github.com/dart-lang/sdk/issues/33967 Change-Id: I0d3b44564fee2cda03fc36f089a4424084732de0 Reviewed-on: https://dart-review.googlesource.com/69200 Commit-Queue: Aart Bik <ajcbik@google.com> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
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