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  1. JDK
  2. JDK-6916274

Construct better CardTableModRefBS::byte_map_base value for 64-bit sparc

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    • Icon: Enhancement Enhancement
    • Resolution: Won't Fix
    • Icon: P4 P4
    • None
    • hs17, 9, 10
    • hotspot
    • sparc
    • generic

      It is expensive to construct 64-bit constant on Sparc. It may use 8 instructions.

      One of such constant is CardTableModRefBS::byte_map_base:

      07c SET 0xff7ffff76e480000,R_L0 !ptr
      098

      Do special allocation for CardTableModRefBS::_byte_map to get better byte_map_base value.

            Unassigned Unassigned
            kvn Vladimir Kozlov
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