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| author | chriseth <c@ethdev.com> | 2016-10-21 23:33:30 +0800 |
|---|---|---|
| committer | chriseth <c@ethdev.com> | 2016-10-22 00:03:57 +0800 |
| commit | ba42c6e447549e7313a1df88b6ac5a55a79ef263 (patch) | |
| tree | 236d197514bcee01a2f072c25910b08b8594c66e /libevmasm | |
| parent | 3e13e59ff96d92f18b972f10f4ef1da1ef249b32 (diff) | |
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Optimizer: generate code starting with empty state
Diffstat (limited to 'libevmasm')
| -rw-r--r-- | libevmasm/Assembly.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libevmasm/Assembly.cpp b/libevmasm/Assembly.cpp index 450ee6ce..e881c1e2 100644 --- a/libevmasm/Assembly.cpp +++ b/libevmasm/Assembly.cpp @@ -327,8 +327,10 @@ Assembly& Assembly::optimise(bool _enable, bool _isCreation, size_t _runs) AssemblyItems optimisedItems; for (BasicBlock const& block: cfg.optimisedBlocks()) { - assertThrow(!!block.startState, OptimizerException, ""); - CommonSubexpressionEliminator eliminator(*block.startState); + // We used to start with the block's initial state but it caused + // too many inconsistencies. + KnownState emptyState; + CommonSubexpressionEliminator eliminator(emptyState); auto iter = m_items.begin() + block.begin; auto const end = m_items.begin() + block.end; while (iter < end) |