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1 //===- OpStats.cpp - Prints stats of operations in module -----------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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236
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9 #include "mlir/Transforms/Passes.h"
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10
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221
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11 #include "mlir/IR/BuiltinOps.h"
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150
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12 #include "mlir/IR/Operation.h"
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13 #include "mlir/IR/OperationSupport.h"
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14 #include "llvm/ADT/DenseMap.h"
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15 #include "llvm/Support/Format.h"
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16 #include "llvm/Support/raw_ostream.h"
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17
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236
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18 namespace mlir {
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19 #define GEN_PASS_DEF_PRINTOPSTATS
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20 #include "mlir/Transforms/Passes.h.inc"
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21 } // namespace mlir
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22
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150
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23 using namespace mlir;
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24
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25 namespace {
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236
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26 struct PrintOpStatsPass : public impl::PrintOpStatsBase<PrintOpStatsPass> {
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27 explicit PrintOpStatsPass(raw_ostream &os) : os(os) {}
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28
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29 explicit PrintOpStatsPass(raw_ostream &os, bool printAsJSON) : os(os) {
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30 this->printAsJSON = printAsJSON;
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31 }
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32
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33 // Prints the resultant operation statistics post iterating over the module.
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173
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34 void runOnOperation() override;
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35
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36 // Print summary of op stats.
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37 void printSummary();
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38
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236
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39 // Print symmary of op stats in JSON.
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40 void printSummaryInJSON();
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41
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150
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42 private:
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43 llvm::StringMap<int64_t> opCount;
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44 raw_ostream &os;
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45 };
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46 } // namespace
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47
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173
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48 void PrintOpStatsPass::runOnOperation() {
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49 opCount.clear();
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50
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221
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51 // Compute the operation statistics for the currently visited operation.
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52 getOperation()->walk(
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53 [&](Operation *op) { ++opCount[op->getName().getStringRef()]; });
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54 if (printAsJSON) {
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55 printSummaryInJSON();
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56 } else
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57 printSummary();
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150
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58 }
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59
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60 void PrintOpStatsPass::printSummary() {
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61 os << "Operations encountered:\n";
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62 os << "-----------------------\n";
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63 SmallVector<StringRef, 64> sorted(opCount.keys());
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64 llvm::sort(sorted);
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65
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66 // Split an operation name from its dialect prefix.
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67 auto splitOperationName = [](StringRef opName) {
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68 auto splitName = opName.split('.');
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69 return splitName.second.empty() ? std::make_pair("", splitName.first)
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70 : splitName;
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71 };
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72
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73 // Compute the largest dialect and operation name.
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74 size_t maxLenOpName = 0, maxLenDialect = 0;
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75 for (const auto &key : sorted) {
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236
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76 auto [dialectName, opName] = splitOperationName(key);
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77 maxLenDialect = std::max(maxLenDialect, dialectName.size());
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78 maxLenOpName = std::max(maxLenOpName, opName.size());
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79 }
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80
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81 for (const auto &key : sorted) {
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236
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82 auto [dialectName, opName] = splitOperationName(key);
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83
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84 // Left-align the names (aligning on the dialect) and right-align the count
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85 // below. The alignment is for readability and does not affect CSV/FileCheck
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86 // parsing.
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87 if (dialectName.empty())
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88 os.indent(maxLenDialect + 3);
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89 else
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90 os << llvm::right_justify(dialectName, maxLenDialect + 2) << '.';
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91
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92 // Left justify the operation name.
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93 os << llvm::left_justify(opName, maxLenOpName) << " , " << opCount[key]
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94 << '\n';
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95 }
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96 }
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97
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236
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98 void PrintOpStatsPass::printSummaryInJSON() {
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99 SmallVector<StringRef, 64> sorted(opCount.keys());
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100 llvm::sort(sorted);
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101
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102 os << "{\n";
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103
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104 for (unsigned i = 0, e = sorted.size(); i != e; ++i) {
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105 const auto &key = sorted[i];
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106 os << " \"" << key << "\" : " << opCount[key];
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107 if (i != e - 1)
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108 os << ",\n";
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109 else
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110 os << "\n";
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111 }
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112 os << "}\n";
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150
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113 }
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236
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114
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115 std::unique_ptr<Pass> mlir::createPrintOpStatsPass(raw_ostream &os) {
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116 return std::make_unique<PrintOpStatsPass>(os);
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117 }
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118
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119 std::unique_ptr<Pass> mlir::createPrintOpStatsPass(raw_ostream &os,
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120 bool printAsJSON) {
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121 return std::make_unique<PrintOpStatsPass>(os, printAsJSON);
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122 }
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