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Hackily put together libevmasm CSE tracing.

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This commit is contained in:
Daniel Kirchner 2022-12-01 15:55:40 +01:00
parent c6ee18a507
commit f5548760d0
1 changed files with 25 additions and 0 deletions
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25
libevmasm/Assembly.cpp
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@ -31,6 +31,8 @@
#include <libevmasm/ConstantOptimiser.h>
#include <libevmasm/GasMeter.h>
#include <libsolutil/JSON.h>
#include <liblangutil/CharStream.h>
#include <liblangutil/Exceptions.h>
@ -344,6 +346,7 @@ map<u256, u256> const& Assembly::optimiseInternal(
std::set<size_t> _tagsReferencedFromOutside
)
{
Json::Value blockTrace(Json::ValueType::arrayValue);
if (m_tagReplacements)
return *m_tagReplacements;
@ -456,6 +459,22 @@ map<u256, u256> const& Assembly::optimiseInternal(
if (shouldReplace)
{
{
Json::Value blockOptimationTrace(Json::ValueType::objectValue);
blockOptimationTrace["kind"] = "cse";
{
Assembly origBlock(m_creation, m_name);
origBlock.m_items.assign(orig, iter);
blockOptimationTrace["pre"] = origBlock.assemblyJSON({}, false);
}
{
Assembly optimizedBlock(m_creation, m_name);
optimizedBlock.m_items.assign(optimisedChunk.begin(), optimisedChunk.end());
blockOptimationTrace["post"] = optimizedBlock.assemblyJSON({}, false);
}
blockTrace.append(blockOptimationTrace);
}
count++;
optimisedItems += optimisedChunk;
}
@ -478,6 +497,12 @@ map<u256, u256> const& Assembly::optimiseInternal(
*this
);
for (auto const& trace: blockTrace)
{
std::ofstream output("/tmp/blockTrace.json", std::ios_base::app|std::ios_base::out);
output << jsonPrint(trace, JsonFormat{JsonFormat::Pretty}) << "," << std::endl;
}
m_tagReplacements = std::move(tagReplacements);
return *m_tagReplacements;
}