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Use side effects of user-defined functions in other optimizer steps.

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This commit is contained in:
chriseth
2021-11-02 11:59:01 +01:00
parent 5eb97fa6ee
commit d6c461ed61
8 changed files with 88 additions and 32 deletions
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libyul/optimiser/ConditionalSimplifier.h
+7 -7
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@@ -44,7 +44,6 @@ namespace solidity::yul
*
* Future features:
* - allow replacements by "1"
* - take termination of user-defined functions into account
*
* Works best with SSA form and if dead code removal has run before.
*
@@ -54,20 +53,21 @@ class ConditionalSimplifier: public ASTModifier
{
public:
static constexpr char const* name{"ConditionalSimplifier"};
static void run(OptimiserStepContext& _context, Block& _ast)
{
ConditionalSimplifier{_context.dialect}(_ast);
}
static void run(OptimiserStepContext& _context, Block& _ast);
using ASTModifier::operator();
void operator()(Switch& _switch) override;
void operator()(Block& _block) override;
private:
explicit ConditionalSimplifier(Dialect const& _dialect):
m_dialect(_dialect)
explicit ConditionalSimplifier(
Dialect const& _dialect,
std::map<YulString, ControlFlowSideEffects> const& _sideEffects
):
m_dialect(_dialect), m_functionSideEffects(_sideEffects)
{}
Dialect const& m_dialect;
std::map<YulString, ControlFlowSideEffects> const& m_functionSideEffects;
};
}