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LLVM/Clang 3.3 Delivers Speed Improvements

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  • LLVM/Clang 3.3 Delivers Speed Improvements

    Phoronix: LLVM/Clang 3.3 Delivers Speed Improvements

    Last month I delivered benchmarks showing LLVM/Clang 3.3 offers performance improvements and then LLVM/Clang 3.3 is very competitive to GCC 4.8. For further confirming this information, LLVM/Clang 3.3 SVN development benchmarks were carried out from an entirely different system to confirm the earlier findings. LLVM/Clang 3.3 is indeed much faster over its predecessor in a wide variety of Linux benchmarks.

    http://www.phoronix.com/vr.php?view=18656

  • #2
    You are still running some of the tests at -O0 (and not -O3 or -Os)

    For example, John The Ripper tests are tested using -O0 and not -O3.

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    • #3
      Does any program uses Ivy-Bridge's hardware Random Number Generator (Codenamed : Bull Mountain) ?

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      • #4
        Can we have AMD's Open64 in a compiler shootout Vs. GCC ?
        Compare GCC 4.7/4.8 vs Open64 release/latest revision .

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        • #5
          You are you usually using x264 as benchmark and it gives very little information because it is optimized in assembly. It would be really interesting if you will compile x264 with and without assembly optimizations. This way you can compare compiler to hand-tuned assembly.

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