view src/cpu/ppc/vm/relocInfo_ppc.hpp @ 20304:a22acf6d7598

8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents ec28f9c041ff
children
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/*
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * accompanied this code).
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#ifndef CPU_PPC_VM_RELOCINFO_PPC_HPP
#define CPU_PPC_VM_RELOCINFO_PPC_HPP

  // machine-dependent parts of class relocInfo
 private:
  enum {
    // Since Power instructions are whole words,
    // the two low-order offset bits can always be discarded.
    offset_unit        =  4,

    // There is no need for format bits; the instructions are
    // sufficiently self-identifying.
#ifndef _LP64
    format_width       =  0
#else
    // Except narrow oops in 64-bits VM.
    format_width       =  1
#endif
  };

#endif // CPU_PPC_VM_RELOCINFO_PPC_HPP