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    • Alexei Filippov's avatar
      Warm up RNG when --random_seed is used · 88c5da04
      Alexei Filippov authored
      The RNG state is initialized with random_seed parameter that usually
      has lots of zeros. Each random generation iteration shuffles bits with
      xor operation over the state. It takes a while before the state is populated
      with enough 1s and starts generating uniformly distributed numbers.
      
      The patch warms up the state with 32 iterations when --random_seed is used.
      
      BUG=v8:8265
      
      Change-Id: I7a4e8c842962bea0f2935c7b3673494367d8580f
      Reviewed-on: https://chromium-review.googlesource.com/c/1263816
      Commit-Queue: Alexei Filippov <alph@chromium.org>
      Reviewed-by: 's avatarYang Guo <yangguo@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#56418}
      88c5da04
  13. 24 Sep, 2018 3 commits