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Simplify patterns.

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This commit is contained in:
chriseth
2019-11-15 00:34:01 +01:00
parent 3e04fd6efa
commit e70ef0b820
6 changed files with 310 additions and 264 deletions
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libyul/optimiser/SimplificationRules.h
+6 -2
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@@ -25,6 +25,8 @@
#include <libyul/AsmDataForward.h>
#include <libyul/AsmData.h>
#include <libdevcore/CommonData.h>
#include <boost/noncopyable.hpp>
#include <functional>
@@ -85,7 +87,7 @@ enum class PatternKind
class Pattern
{
public:
using Builtins = dev::eth::EVMBuiltins;
using Builtins = dev::eth::EVMBuiltins<Pattern>;
static constexpr size_t WordSize = 256;
using Word = dev::u256;
@@ -93,10 +95,12 @@ public:
Pattern(PatternKind _kind = PatternKind::Any): m_kind(_kind) {}
// Matches a specific constant value.
Pattern(unsigned _value): Pattern(dev::u256(_value)) {}
Pattern(int _value): Pattern(dev::u256(_value)) {}
Pattern(long unsigned _value): Pattern(dev::u256(_value)) {}
// Matches a specific constant value.
Pattern(dev::u256 const& _value): m_kind(PatternKind::Constant), m_data(std::make_shared<dev::u256>(_value)) {}
// Matches a given instruction with given arguments
Pattern(dev::eth::Instruction _instruction, std::vector<Pattern> const& _arguments = {});
Pattern(dev::eth::Instruction _instruction, std::initializer_list<Pattern> _arguments = {});
/// Sets this pattern to be part of the match group with the identifier @a _group.
/// Inside one rule, all patterns in the same match group have to match expressions from the
/// same expression equivalence class.