1. 01 May, 2017 1 commit
    • stanisc's avatar
      Remove padding in v8::internal::compiler::Constant class. · 9ede481a
      stanisc authored
      This makes the size of the class smaller by 8 bytes on 64-bit. I looked at the usage
      pattern. Even though it seems the number of instances doesn't get higher
      than a few thousand, this class is still very hot because it is constructed and
      passed by value a lot. So perhaps reducing the size would make passing this
      class by value or growing arrays more optimal and might save some cycles.
      
      Before:
          class v8::internal::compiler::Constant [sizeof = 24] {
            [sizeof=4] v8::internal::compiler::Constant::Type type_
            <padding> (4 bytes)
            [sizeof=8] __int64 value_
            [sizeof=4] v8::internal::RelocInfo::Mode rmode_
            <padding> (4 bytes)
          }
      
      After:
          class v8::internal::compiler::Constant [sizeof = 16] {
            [sizeof=4] v8::internal::compiler::Constant::Type type_
            [sizeof=4] v8::internal::RelocInfo::Mode rmode_
            [sizeof=8] __int64 value_
          }
      
      BUG=chromium:710933
      
      Review-Url: https://codereview.chromium.org/2841343002
      Cr-Commit-Position: refs/heads/master@{#45001}
      9ede481a
  2. 30 Apr, 2017 2 commits
  3. 29 Apr, 2017 7 commits
  4. 28 Apr, 2017 30 commits