ADTast-experimentalenumforall-pointer-decayjacob/cs343-translationnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change
on this file since 98233b3 was
54651005,
checked in by Andrew Beach <ajbeach@…>, 3 years ago
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Added asm statements to the exception benchmarks to prevent unwanted optimizations.
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-
Property mode set to
100644
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File size:
1.1 KB
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1 | // Conditional Match (or Re-Raise) |
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2 | #include <chrono> |
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3 | #include <cstdlib> |
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4 | #include <exception> |
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5 | #include <iostream> |
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6 | |
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7 | using namespace std::chrono; |
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8 | |
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9 | struct EmptyException : public std::exception {}; |
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10 | |
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11 | bool should_catch = false; |
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12 | |
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13 | void throw_exception() { |
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14 | throw EmptyException(); |
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15 | } |
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16 | |
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17 | void cond_catch() { |
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18 | try { |
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19 | throw_exception(); |
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20 | } catch (EmptyException & exc) { |
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21 | if (!should_catch) { |
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22 | throw; |
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23 | } |
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24 | asm volatile ("# catch block (conditional)"); |
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25 | } |
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26 | } |
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27 | |
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28 | int main(int argc, char * argv[]) { |
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29 | unsigned int times = 1; |
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30 | if (1 < argc) { |
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31 | times = strtol(argv[1], nullptr, 10); |
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32 | } |
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33 | if (2 < argc) { |
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34 | should_catch = strtol(argv[2], nullptr, 10); |
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35 | } |
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36 | |
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37 | time_point<steady_clock> start_time = steady_clock::now(); |
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38 | for (unsigned int count = 0 ; count < times ; ++count) { |
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39 | try { |
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40 | cond_catch(); |
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41 | } catch (EmptyException &) { |
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42 | asm volatile ("# catch block (unconditional)"); |
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43 | } |
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44 | } |
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45 | time_point<steady_clock> end_time = steady_clock::now(); |
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46 | nanoseconds duration = duration_cast<nanoseconds>(end_time - start_time); |
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47 | std::cout << "Run-Time (ns): " << duration.count() << std::endl; |
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48 | } |
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