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Take user function side-effects into account for unused pruner.

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This commit is contained in:
chriseth
2019-09-02 17:41:51 +02:00
parent 1c5845e3f2
commit 127bcfc69d
8 changed files with 72 additions and 26 deletions
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test/libyul/YulOptimizerTest.cpp
+4 -4
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@@ -222,7 +222,7 @@ TestCase::TestResult YulOptimizerTest::run(ostream& _stream, string const& _line
ForLoopInitRewriter{}(*m_ast);
CommonSubexpressionEliminator::run(*m_dialect, *m_ast);
ExpressionSimplifier::run(*m_dialect, *m_ast);
UnusedPruner::runUntilStabilised(*m_dialect, *m_ast);
UnusedPruner::runUntilStabilisedOnFullAST(*m_dialect, *m_ast);
DeadCodeEliminator{*m_dialect}(*m_ast);
ExpressionJoiner::run(*m_ast);
ExpressionJoiner::run(*m_ast);
@@ -230,7 +230,7 @@ TestCase::TestResult YulOptimizerTest::run(ostream& _stream, string const& _line
else if (m_optimizerStep == "unusedPruner")
{
disambiguate();
UnusedPruner::runUntilStabilised(*m_dialect, *m_ast);
UnusedPruner::runUntilStabilisedOnFullAST(*m_dialect, *m_ast);
}
else if (m_optimizerStep == "deadCodeEliminator")
{
@@ -267,7 +267,7 @@ TestCase::TestResult YulOptimizerTest::run(ostream& _stream, string const& _line
LoadResolver::run(*m_dialect, *m_ast);
UnusedPruner::runUntilStabilised(*m_dialect, *m_ast);
UnusedPruner::runUntilStabilisedOnFullAST(*m_dialect, *m_ast);
ExpressionJoiner::run(*m_ast);
ExpressionJoiner::run(*m_ast);
}
@@ -301,7 +301,7 @@ TestCase::TestResult YulOptimizerTest::run(ostream& _stream, string const& _line
// reverse SSA
SSAReverser::run(*m_ast);
CommonSubexpressionEliminator::run(*m_dialect, *m_ast);
UnusedPruner::runUntilStabilised(*m_dialect, *m_ast);
UnusedPruner::runUntilStabilisedOnFullAST(*m_dialect, *m_ast);
}
else if (m_optimizerStep == "stackCompressor")
{
test/libyul/yulOptimizerTests/unusedPruner/movable_user_defined_function.yul
+13
View File
@@ -0,0 +1,13 @@
{
function f(x) -> t {
let b := 7
}
function g(x) -> t {
t := x
}
let x := f(g(2))
}
// ====
// step: unusedPruner
// ----
// { }