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  1. JDK
  2. JDK-8241018

32-bit integer log2 functions return the wrong value for negative arguments on 64-bit machines

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    • Subcomponent:
    • Resolved In Build:
      b15
    • CPU:
      generic
    • OS:
      generic

      Description

      log2_int() should return 32 for all negative arguments: the intention is to find the most significant set bit in x.

      This does not work on 64-bit machines because the argument is sign extended to 64 bits before being converted to uintptr_t.

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              • Assignee:
                aph Andrew Haley
                Reporter:
                aph Andrew Haley
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