jdk8-mips64-public/hotspot: src/cpu/sparc/vm/relocInfo

6985015: C1 needs to support compressed oops
Summary: This change implements compressed oops for C1 for x64 and sparc. The changes are mostly on the codegen level, with a few exceptions when we do access things outside of the heap that are uncompressed from the IR. Compressed oops are now also enabled with tiered.
Reviewed-by: twisti, kvn, never, phh

     1 /*

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     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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     5  * This code is free software; you can redistribute it and/or modify it

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     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

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    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

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    25 #ifndef CPU_SPARC_VM_RELOCINFO_SPARC_HPP

    26 #define CPU_SPARC_VM_RELOCINFO_SPARC_HPP

    28   // machine-dependent parts of class relocInfo

    29  private:

    30   enum {

    31     // Since SPARC instructions are whole words,

    32     // the two low-order offset bits can always be discarded.

    33     offset_unit        =  4,

    35     // There is no need for format bits; the instructions are

    36     // sufficiently self-identifying.

    37 #ifndef _LP64

    38     format_width       =  0

    39 #else

    40     // Except narrow oops in 64-bits VM.

    41     format_width       =  1

    42 #endif

    43   };

    46 //Reconciliation History

    47 // 1.3 97/10/15 15:38:36 relocInfo_i486.hpp

    48 // 1.4 97/12/08 16:01:06 relocInfo_i486.hpp

    49 // 1.5 98/01/23 01:34:55 relocInfo_i486.hpp

    50 // 1.6 98/02/27 15:44:53 relocInfo_i486.hpp

    51 // 1.6 98/03/12 14:47:13 relocInfo_i486.hpp

    52 // 1.8 99/06/22 16:37:50 relocInfo_i486.hpp

    53 // 1.9 99/07/16 11:12:11 relocInfo_i486.hpp

    54 //End

    56 #endif // CPU_SPARC_VM_RELOCINFO_SPARC_HPP

src/cpu/sparc/vm/relocInfo_sparc.hpp@ac637b7220d1

src/cpu/sparc/vm/relocInfo_sparc.hpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/cpu/sparc/vm/relocInfo_sparc.hpp@ac637b7220d1

src/cpu/sparc/vm/relocInfo_sparc.hpp