Example #1
0
void CodeBlockHash::dump(PrintStream& out) const
{
    FixedArray<char, 7> buffer = integerToSixCharacterHashString(m_hash);
    
#if !ASSERT_DISABLED
    CodeBlockHash recompute(buffer.data());
    ASSERT(recompute == *this);
#endif // !ASSERT_DISABLED
    
    out.print(buffer.data());
}
Example #2
0
OpcodeStats::~OpcodeStats()
{
    long long totalInstructions = 0;
    for (int i = 0; i < numOpcodeIDs; ++i)
        totalInstructions += opcodeCounts[i];
    
    long long totalInstructionPairs = 0;
    for (int i = 0; i < numOpcodeIDs; ++i)
        for (int j = 0; j < numOpcodeIDs; ++j)
            totalInstructionPairs += opcodePairCounts[i][j];

    FixedArray<int, numOpcodeIDs> sortedIndices;
    for (int i = 0; i < numOpcodeIDs; ++i)
        sortedIndices[i] = i;
    qsort(sortedIndices.data(), numOpcodeIDs, sizeof(int), compareOpcodeIndices);
    
    pair<int, int> sortedPairIndices[numOpcodeIDs * numOpcodeIDs];
    pair<int, int>* currentPairIndex = sortedPairIndices;
    for (int i = 0; i < numOpcodeIDs; ++i)
        for (int j = 0; j < numOpcodeIDs; ++j)
            *(currentPairIndex++) = make_pair(i, j);
    qsort(sortedPairIndices, numOpcodeIDs * numOpcodeIDs, sizeof(pair<int, int>), 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 < numOpcodeIDs; ++i) {
        int index = sortedIndices[i];
        printf("%s:%s %lld - %.2f%%\n", opcodeNames[index], padOpcodeName((OpcodeID)index, 28), opcodeCounts[index], ((double) opcodeCounts[index]) / ((double) totalInstructions) * 100.0);    
    }
    
    printf("\n");
    printf("2-opcode sequences by frequency: %lld\n\n", totalInstructions);
    
    for (int i = 0; i < numOpcodeIDs * numOpcodeIDs; ++i) {
        pair<int, int> 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 < numOpcodeIDs; ++i) {
        int index = sortedIndices[i];
        long long opcodeCount = opcodeCounts[index];
        double opcodeProportion = ((double) opcodeCount) / ((double) totalInstructions);
        if (opcodeProportion < 0.0001)
            break;
        printf("\n%s:%s %lld - %.2f%%\n", opcodeNames[index], padOpcodeName((OpcodeID)index, 28), opcodeCount, opcodeProportion * 100.0);

        for (int j = 0; j < numOpcodeIDs * numOpcodeIDs; ++j) {
            pair<int, int> indexPair = sortedPairIndices[j];
            long long pairCount = opcodePairCounts[indexPair.first][indexPair.second];
            double pairProportion = ((double) pairCount) / ((double) totalInstructionPairs);
        
            if (!pairCount || pairProportion < 0.0001 || pairProportion < opcodeProportion / 100)
                break;

            if (indexPair.first != index && indexPair.second != index)
                continue;

            printf("    %s%s %s:%s %lld - %.2f%%\n", opcodeNames[indexPair.first], padOpcodeName((OpcodeID)indexPair.first, 28), opcodeNames[indexPair.second], padOpcodeName((OpcodeID)indexPair.second, 28), pairCount, pairProportion * 100.0);
        }
        
    }
    printf("\n");
}