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[cond-expr] make the codegen one instruction less

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This commit is contained in:
Lu Guanqun 2015-12-23 16:09:29 +00:00
parent db6ce6d8a1
commit c781b130ef
1 changed files with 5 additions and 6 deletions
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11
libsolidity/codegen/ExpressionCompiler.cpp
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@ -180,13 +180,12 @@ bool ExpressionCompiler::visit(Conditional const& _condition)
{
CompilerContext::LocationSetter locationSetter(m_context, _condition);
_condition.condition().accept(*this);
m_context << eth::Instruction::ISZERO;
eth::AssemblyItem falseTag = m_context.appendConditionalJump();
_condition.trueExpression().accept(*this);
eth::AssemblyItem endTag = m_context.appendJumpToNew();
m_context << falseTag;
m_context.adjustStackOffset(-1);
eth::AssemblyItem trueTag = m_context.appendConditionalJump();
_condition.falseExpression().accept(*this);
eth::AssemblyItem endTag = m_context.appendJumpToNew();
m_context << trueTag;
m_context.adjustStackOffset(-1);
_condition.trueExpression().accept(*this);
m_context << endTag;
return false;
}