On x64, use 32-bit immediate moves for narrow klass base if possible

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    • Type: Enhancement
    • Resolution: Fixed
    • Priority: P4
    • 25
    • Affects Version/s: 23
    • Component/s: hotspot
    • b26
    • x86_64

      On x64, we always use the long form of mov immediate to load the klass base into a register. If the klass base fits into 32 bit, we could use the short form and save four instruction bytes.

            Assignee:
            Thomas Stuefe
            Reporter:
            Thomas Stuefe
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