/* * Copyright (C) 2008 Apple Inc. All rights reserved. * Copyright (C) 2008 Cameron Zwarich * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "Opcode.h" using namespace std; namespace JSC { #if ENABLE(OPCODE_SAMPLING) || ENABLE(CODEBLOCK_SAMPLING) || ENABLE(OPCODE_STATS) const char* const opcodeNames[] = { #define OPCODE_NAME_ENTRY(opcode, size) #opcode, FOR_EACH_OPCODE_ID(OPCODE_NAME_ENTRY) #undef OPCODE_NAME_ENTRY }; #endif #if ENABLE(OPCODE_STATS) long long OpcodeStats::opcodeCounts[numOpcodeIDs]; long long OpcodeStats::opcodePairCounts[numOpcodeIDs][numOpcodeIDs]; int OpcodeStats::lastOpcode = -1; static OpcodeStats logger; OpcodeStats::OpcodeStats() { for (int i = 0; i rightValue) return -1; else return 0; } static int compareOpcodePairIndices(const void* left, const void* right) { pair leftPair = *(pair*) left; long long leftValue = OpcodeStats::opcodePairCounts[leftPair.first][leftPair.second]; pair rightPair = *(pair*) right; long long rightValue = OpcodeStats::opcodePairCounts[rightPair.first][rightPair.second]; if (leftValue rightValue) return -1; else return 0; } OpcodeStats::~OpcodeStats() { long long totalInstructions = 0; for (int i = 0; i sortedPairIndices[numOpcodeIDs * numOpcodeIDs]; pair* currentPairIndex = sortedPairIndices; for (int i = 0; i ), compareOpcodePairIndices); printf("\nExecuted opcode statistics\n"); printf("Total instructions executed: %lld\n\n", totalInstructions); printf("All opcodes by frequency:\n\n"); for (int i = 0; i indexPair = sortedPairIndices[i]; long long count = opcodePairCounts[indexPair.first][indexPair.second]; if (!count) break; printf("%s%s %s:%s %lld %.2f%%\n", opcodeNames[indexPair.first], padOpcodeName((OpcodeID)indexPair.first, 28), opcodeNames[indexPair.second], padOpcodeName((OpcodeID)indexPair.second, 28), count, ((double) count) / ((double) totalInstructionPairs) * 100.0); } printf("\n"); printf("Most common opcodes and sequences:\n"); for (int i = 0; i indexPair = sortedPairIndices[j]; long long pairCount = opcodePairCounts[indexPair.first][indexPair.second]; double pairProportion = ((double) pairCount) / ((double) totalInstructionPairs); if (!pairCount || pairProportion