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| author | chriseth <chris@ethereum.org> | 2018-04-11 23:18:31 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-04-11 23:18:31 +0800 |
| commit | d50d1f0ac1841a1d287a216451e93573fc07474e (patch) | |
| tree | d24720a3bdf4d78de4436d88721e907ce91a367a /Changelog.md | |
| parent | 29bde7fc2a6f6fc82b90f6963a536553b9eea04e (diff) | |
| parent | 2e73ef5ac5db406e86e3a90c89d3be4b0d666073 (diff) | |
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Merge pull request #3580 from ethereum/asm-bitshift-optim
Add simplification rule for bitwise shifting
Diffstat (limited to 'Changelog.md')
| -rw-r--r-- | Changelog.md | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Changelog.md b/Changelog.md index c918f171..6df11f27 100644 --- a/Changelog.md +++ b/Changelog.md @@ -7,6 +7,7 @@ Features: * General: Limit the number of errors output in a single run to 256. * General: Support accessing dynamic return data in post-byzantium EVMs. * Interfaces: Allow overriding external functions in interfaces with public in an implementing contract. + * Optimizer: Optimize ``SHL`` and ``SHR`` only involving constants (Constantinople only). * Optimizer: Remove useless ``SWAP1`` instruction preceding a commutative instruction (such as ``ADD``, ``MUL``, etc). * Optimizer: Replace comparison operators (``LT``, ``GT``, etc) with opposites if preceded by ``SWAP1``, e.g. ``SWAP1 LT`` is replaced with ``GT``. * Optimizer: Optimize across ``mload`` if ``msize()`` is not used. |