122 lines · cpp
1//===- OpStats.cpp - Prints stats of operations in module -----------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "mlir/Transforms/Passes.h"10 11#include "mlir/IR/Operation.h"12#include "mlir/IR/OperationSupport.h"13#include "llvm/Support/Format.h"14#include "llvm/Support/raw_ostream.h"15 16namespace mlir {17#define GEN_PASS_DEF_PRINTOPSTATS18#include "mlir/Transforms/Passes.h.inc"19} // namespace mlir20 21using namespace mlir;22 23namespace {24struct PrintOpStatsPass : public impl::PrintOpStatsBase<PrintOpStatsPass> {25 explicit PrintOpStatsPass(raw_ostream &os) : os(os) {}26 27 explicit PrintOpStatsPass(raw_ostream &os, bool printAsJSON) : os(os) {28 this->printAsJSON = printAsJSON;29 }30 31 // Prints the resultant operation statistics post iterating over the module.32 void runOnOperation() override;33 34 // Print summary of op stats.35 void printSummary();36 37 // Print symmary of op stats in JSON.38 void printSummaryInJSON();39 40private:41 llvm::StringMap<int64_t> opCount;42 raw_ostream &os;43};44} // namespace45 46void PrintOpStatsPass::runOnOperation() {47 opCount.clear();48 49 // Compute the operation statistics for the currently visited operation.50 getOperation()->walk(51 [&](Operation *op) { ++opCount[op->getName().getStringRef()]; });52 if (printAsJSON)53 printSummaryInJSON();54 else55 printSummary();56 markAllAnalysesPreserved();57}58 59void PrintOpStatsPass::printSummary() {60 os << "Operations encountered:\n";61 os << "-----------------------\n";62 SmallVector<StringRef, 64> sorted(opCount.keys());63 llvm::sort(sorted);64 65 // Split an operation name from its dialect prefix.66 auto splitOperationName = [](StringRef opName) {67 auto splitName = opName.split('.');68 return splitName.second.empty() ? std::make_pair("", splitName.first)69 : splitName;70 };71 72 // Compute the largest dialect and operation name.73 size_t maxLenOpName = 0, maxLenDialect = 0;74 for (const auto &key : sorted) {75 auto [dialectName, opName] = splitOperationName(key);76 maxLenDialect = std::max(maxLenDialect, dialectName.size());77 maxLenOpName = std::max(maxLenOpName, opName.size());78 }79 80 for (const auto &key : sorted) {81 auto [dialectName, opName] = splitOperationName(key);82 83 // Left-align the names (aligning on the dialect) and right-align the count84 // below. The alignment is for readability and does not affect CSV/FileCheck85 // parsing.86 if (dialectName.empty())87 os.indent(maxLenDialect + 3);88 else89 os << llvm::right_justify(dialectName, maxLenDialect + 2) << '.';90 91 // Left justify the operation name.92 os << llvm::left_justify(opName, maxLenOpName) << " , " << opCount[key]93 << '\n';94 }95}96 97void PrintOpStatsPass::printSummaryInJSON() {98 SmallVector<StringRef, 64> sorted(opCount.keys());99 llvm::sort(sorted);100 101 os << "{\n";102 103 for (unsigned i = 0, e = sorted.size(); i != e; ++i) {104 const auto &key = sorted[i];105 os << " \"" << key << "\" : " << opCount[key];106 if (i != e - 1)107 os << ",\n";108 else109 os << "\n";110 }111 os << "}\n";112}113 114std::unique_ptr<Pass> mlir::createPrintOpStatsPass(raw_ostream &os) {115 return std::make_unique<PrintOpStatsPass>(os);116}117 118std::unique_ptr<Pass> mlir::createPrintOpStatsPass(raw_ostream &os,119 bool printAsJSON) {120 return std::make_unique<PrintOpStatsPass>(os, printAsJSON);121}122