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Extend pop(0)-remover to any movable expression.

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This commit is contained in:
chriseth 2018-02-06 15:51:46 +01:00
parent c7245ba362
commit bf27e86984
1 changed files with 3 additions and 4 deletions
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7
libjulia/optimiser/FullInliner.cpp
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@ -23,6 +23,7 @@
#include <libjulia/optimiser/ASTCopier.h> #include <libjulia/optimiser/ASTCopier.h>
#include <libjulia/optimiser/ASTWalker.h> #include <libjulia/optimiser/ASTWalker.h>
#include <libjulia/optimiser/NameCollector.h> #include <libjulia/optimiser/NameCollector.h>
#include <libjulia/optimiser/Semantics.h>
#include <libsolidity/inlineasm/AsmData.h> #include <libsolidity/inlineasm/AsmData.h>
@ -159,7 +160,7 @@ void InlineModifier::visit(Expression& _expression)
void InlineModifier::visit(Statement& _statement) void InlineModifier::visit(Statement& _statement)
{ {
ASTModifier::visit(_statement); ASTModifier::visit(_statement);
// Replace pop(0) expression statemets by empty blocks. // Replace pop(0) expression statemets (and others) by empty blocks.
if (_statement.type() == typeid(ExpressionStatement)) if (_statement.type() == typeid(ExpressionStatement))
{ {
ExpressionStatement& expSt = boost::get<ExpressionStatement&>(_statement); ExpressionStatement& expSt = boost::get<ExpressionStatement&>(_statement);
@ -167,10 +168,8 @@ void InlineModifier::visit(Statement& _statement)
{ {
FunctionalInstruction& funInstr = boost::get<FunctionalInstruction&>(expSt.expression); FunctionalInstruction& funInstr = boost::get<FunctionalInstruction&>(expSt.expression);
if (funInstr.instruction == solidity::Instruction::POP) if (funInstr.instruction == solidity::Instruction::POP)
{ if (MovableChecker(funInstr.arguments.at(0)).movable())
if (funInstr.arguments.at(0).type() == typeid(Literal))
_statement = Block{expSt.location, {}}; _statement = Block{expSt.location, {}};
}
} }
} }
} }