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  1. JDK
  2. JDK-8256827

C2: Avoid reallocations by pre-sizing lists in post_allocate_copy_removal

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    • Enhancement
    • Resolution: Fixed
    • P4
    • 16
    • 16
    • hotspot
    • b26

    Description

      By pre-sizing the Node_Lists created in PhaseChaitin::post_allocate_copy_removal we avoid all re-allocations. If lists are allocated to exactly the size needed we might also reduce memory waste (reducing memory used by these structures by up to half).

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              redestad Claes Redestad
              redestad Claes Redestad
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