From 54c77ff7c48d250a1a5b0aa2a262689fa8184d78 Mon Sep 17 00:00:00 2001 From: Michael Date: Wed, 27 Jan 2016 18:34:14 -0800 Subject: Adds a --metrics command line argument to print metrics about .wast files between optimization passes. --- src/passes/Metrics.cpp | 69 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 src/passes/Metrics.cpp (limited to 'src/passes/Metrics.cpp') diff --git a/src/passes/Metrics.cpp b/src/passes/Metrics.cpp new file mode 100644 index 000000000..3624786a4 --- /dev/null +++ b/src/passes/Metrics.cpp @@ -0,0 +1,69 @@ +/* + * Copyright 2016 WebAssembly Community Group participants + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include +#include +#include + +namespace wasm { + +using namespace std; + +// Prints metrics between optimization passes. +struct Metrics : public WalkerPass> { + static Metrics *lastMetricsPass; + + map counts; + void walk(Expression *&curr) override { + WalkerPass::walk(curr); + if (!curr) + return; + auto name = getExpressionName(curr); + counts[name]++; + } + void finalize(PassRunner *runner, Module *module) override { + ostream &o = cout; + o << "Counts" + << "\n"; + for (auto i = counts.cbegin(); i != counts.cend(); i++) { + o << " " << left << setw(15) << i->first << ": " << setw(8) + << i->second; + if (lastMetricsPass) { + if (lastMetricsPass->counts.count(i->first)) { + int before = lastMetricsPass->counts[i->first]; + int after = i->second; + if (after - before) { + if (after > before) { + Colors::red(o); + } else { + Colors::green(o); + } + o << right << setw(8); + o << showpos << after - before << noshowpos; + Colors::normal(o); + } + } + } + o << "\n"; + } + lastMetricsPass = this; + } +}; + +Metrics *Metrics::lastMetricsPass; +static RegisterPass registerPass("metrics", "reports metrics"); + +} // namespace wasm -- cgit v1.2.3