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Remove ineffective rules.

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This commit is contained in:
chriseth 2020-09-14 14:47:06 +02:00
parent 8e39110a30
commit 233604f94b
1 changed files with 0 additions and 40 deletions
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40
libevmasm/RuleList.h
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@ -608,45 +608,6 @@ std::vector<SimplificationRule<Pattern>> simplificationRuleListPart8(
return rules;
}
template <class Pattern>
std::vector<SimplificationRule<Pattern>> simplificationRuleListPart9(
Pattern,
Pattern,
Pattern,
Pattern W,
Pattern X,
Pattern Y,
Pattern Z
)
{
using Word = typename Pattern::Word;
using Builtins = typename Pattern::Builtins;
std::vector<SimplificationRule<Pattern>> rules;
assertThrow(Pattern::WordSize > 160, OptimizerException, "");
Word const mask = (Word(1) << 160) - 1;
// CREATE
rules.push_back({
Builtins::AND(Builtins::CREATE(W, X, Y), mask),
[=]() -> Pattern { return Builtins::CREATE(W, X, Y); }
});
rules.push_back({
Builtins::AND(mask, Builtins::CREATE(W, X, Y)),
[=]() -> Pattern { return Builtins::CREATE(W, X, Y); }
});
// CREATE2
rules.push_back({
Builtins::AND(Builtins::CREATE2(W, X, Y, Z), mask),
[=]() -> Pattern { return Builtins::CREATE2(W, X, Y, Z); }
});
rules.push_back({
Builtins::AND(mask, Builtins::CREATE2(W, X, Y, Z)),
[=]() -> Pattern { return Builtins::CREATE2(W, X, Y, Z); }
});
return rules;
}
template<class Pattern>
std::vector<SimplificationRule<Pattern>> evmRuleList(
langutil::EVMVersion _evmVersion,
@ -705,7 +666,6 @@ std::vector<SimplificationRule<Pattern>> simplificationRuleList(
rules += simplificationRuleListPart6(A, B, C, W, X);
rules += simplificationRuleListPart7(A, B, C, W, X);
rules += simplificationRuleListPart8(A, B, C, W, X);
rules += simplificationRuleListPart9(A, B, C, W, X, Y, Z);
if (_evmVersion.has_value())
rules += evmRuleList(*_evmVersion, A, B, C, W, X, Y, Z);