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Merge pull request #14422 from ethereum/sort-changelog-for-0.8.21

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Sort Changelog for 0.8.21 release
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Nikola Matić 2023-07-19 10:51:53 +02:00 committed by GitHub
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@ -16,16 +16,16 @@ Compiler Features:
* Commandline Interface: Respect ``--optimize-yul`` and ``--no-optimize-yul`` in compiler mode and accept them in assembler mode as well. ``--optimize --no-optimize-yul`` combination now allows enabling EVM assembly optimizer without enabling Yul optimizer.
* EWasm: Remove EWasm backend.
* Parser: Introduce ``pragma experimental solidity``, which will enable an experimental language mode that in particular has no stability guarantees between non-breaking releases and is not suited for production use.
* SMTChecker: Add ``--model-checker-print-query`` CLI option and ``settings.modelChecker.printQuery`` JSON option to output the SMTChecker queries in the SMTLIB2 format. This requires using `smtlib2` solver only.
* SMTChecker: Add ``--model-checker-print-query`` CLI option and ``settings.modelChecker.printQuery`` JSON option to output the SMTChecker queries in the SMTLIB2 format. This requires using ``smtlib2`` solver only.
* Standard JSON Interface: Add ``ast`` file-level output for Yul input.
* Standard JSON Interface: Add ``irAst`` and ``irOptimizedAst`` contract-level outputs for Solidity input, providing AST in compact JSON format for IR and optimized IR.
* Yul Optimizer: Remove experimental `ReasoningBasedSimplifier` optimization step.
* Yul Optimizer: Remove experimental ``ReasoningBasedSimplifier`` optimization step.
* Yul Optimizer: Stack-to-memory mover is now enabled by default whenever possible for via IR code generation and pure Yul compilation.
Bugfixes:
* Code Generator: Disallow complex expressions whose results are types, built-ins, modules or some unassignable functions. The legacy code generation pipeline would not actually evaluate them, discarding any side-effects they might have.
* Code Generator: Fix not entirely deterministic order of functions in unoptimized Yul output. The choice of C++ compiler in some cases would result in different (but equivalent) bytecode (especially from native binaries vs emscripten binaries)
* Code Generator: Fix not entirely deterministic order of functions in unoptimized Yul output. The choice of C++ compiler in some cases would result in different (but equivalent) bytecode (especially from native binaries vs emscripten binaries).
* Commandline Interface: Fix internal error when using ``--stop-after parsing`` and requesting some of the outputs that require full analysis or compilation.
* Commandline Interface: It is no longer possible to specify both ``--optimize-yul`` and ``--no-optimize-yul`` at the same time.
* SMTChecker: Fix encoding of side-effects inside ``if`` and ``ternary conditional``statements in the BMC engine.