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Tests for memoryloadresolver

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This commit is contained in:
hrkrshnn 2021-01-06 13:50:21 +01:00
parent 1794000d2d
commit 4035f82881
4 changed files with 66 additions and 0 deletions
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15
test/libyul/YulOptimizerTest.cpp
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@ -47,6 +47,7 @@
#include <libyul/optimiser/LoopInvariantCodeMotion.h>
#include <libyul/optimiser/MainFunction.h>
#include <libyul/optimiser/StackLimitEvader.h>
#include <libyul/optimiser/MemoryLoadResolver.h>
#include <libyul/optimiser/NameDisplacer.h>
#include <libyul/optimiser/Rematerialiser.h>
#include <libyul/optimiser/ExpressionSimplifier.h>
@ -433,6 +434,20 @@ TestCase::TestResult YulOptimizerTest::run(ostream& _stream, string const& _line
fakeUnreachableGenerator(*obj.code);
StackLimitEvader::run(*m_context, obj, fakeUnreachableGenerator.fakeUnreachables);
}
else if (m_optimizerStep == "memoryLoadResolver")
{
disambiguate();
ForLoopInitRewriter::run(*m_context, *m_object->code);
ExpressionSplitter::run(*m_context, *m_object->code);
SSATransform::run(*m_context, *m_object->code);
MemoryLoadResolver::run(*m_context, *m_object->code);
// Cleanup
UnusedPruner::run(*m_context, *m_object->code);
ExpressionJoiner::run(*m_context, *m_object->code);
ExpressionJoiner::run(*m_context, *m_object->code);
}
else
{
AnsiColorized(_stream, _formatted, {formatting::BOLD, formatting::RED}) << _linePrefix << "Invalid optimizer step: " << m_optimizerStep << endl;

29
test/libyul/yulOptimizerTests/memoryLoadResolver/calldataload.yul Normal file
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@ -0,0 +1,29 @@
{
let key := 64
let value := 128
mstore(key, value)
if callvalue() { revert(0, 0) }
let _1 := 0
let c := calldatasize()
// Does not invalidate location 64
calldatacopy(value, _1, c)
// Should be replaced by out := value
let out := mload(key)
sstore(0, out)
}
// ----
// step: memoryLoadResolver
//
// {
// let key := 64
// let value := 128
// mstore(key, value)
// if callvalue() { revert(0, 0) }
// let _1 := 0
// calldatacopy(value, _1, calldatasize())
// sstore(0, value)
// }

17
test/libyul/yulOptimizerTests/memoryLoadResolver/simple.yul Normal file
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@ -0,0 +1,17 @@
{
let key := 64
let value := 128
mstore(key, value)
// should be replaced by sstore(0, value)
sstore(0, mload(key))
}
// ----
// step: memoryLoadResolver
//
// {
// let key := 64
// let value := 128
// mstore(key, value)
// sstore(0, value)
// }

5
test/libyul/yulOptimizerTests/memoryLoadResolver/smoke.yul Normal file
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@ -0,0 +1,5 @@
{ }
// ----
// step: memoryLoadResolver
//
// { }