src/hotspot/cpu/ppc/frame_ppc.hpp
author erikj
Tue, 12 Sep 2017 19:03:39 +0200
changeset 47216 71c04702a3d5
parent 46628 hotspot/src/cpu/ppc/vm/frame_ppc.hpp@d19bf13a5655
child 49480 d7df2dd501ce
permissions -rw-r--r--
8187443: Forest Consolidation: Move files to unified layout Reviewed-by: darcy, ihse
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/*
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 * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
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 * Copyright (c) 2012, 2015 SAP SE. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef CPU_PPC_VM_FRAME_PPC_HPP
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#define CPU_PPC_VM_FRAME_PPC_HPP
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#include "runtime/synchronizer.hpp"
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  //  C frame layout on PPC-64.
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  //
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  //  In this figure the stack grows upwards, while memory grows
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  //  downwards. See "64-bit PowerPC ELF ABI Supplement Version 1.7",
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  //  IBM Corp. (2003-10-29)
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  //  (http://math-atlas.sourceforge.net/devel/assembly/PPC-elf64abi-1.7.pdf).
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  //
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  //  Square brackets denote stack regions possibly larger
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  //  than a single 64 bit slot.
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  //
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  //  STACK:
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  //    0       [C_FRAME]               <-- SP after prolog (mod 16 = 0)
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  //            [C_FRAME]               <-- SP before prolog
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  //            ...
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  //            [C_FRAME]
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  //
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  //  C_FRAME:
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  //    0       [ABI_REG_ARGS]
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  //    112     CARG_9: outgoing arg 9 (arg_1 ... arg_8 via gpr_3 ... gpr_{10})
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  //            ...
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  //    40+M*8  CARG_M: outgoing arg M (M is the maximum of outgoing args taken over all call sites in the procedure)
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  //            local 1
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  //            ...
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  //            local N
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  //            spill slot for vector reg (16 bytes aligned)
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  //            ...
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  //            spill slot for vector reg
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  //            alignment       (4 or 12 bytes)
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  //    V       SR_VRSAVE
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  //    V+4     spill slot for GR
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  //    ...     ...
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  //            spill slot for GR
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  //            spill slot for FR
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  //            ...
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  //            spill slot for FR
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  //
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  //  ABI_48:
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  //    0       caller's SP
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  //    8       space for condition register (CR) for next call
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  //    16      space for link register (LR) for next call
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  //    24      reserved
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  //    32      reserved
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  //    40      space for TOC (=R2) register for next call
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  //
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  //  ABI_REG_ARGS:
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  //    0       [ABI_48]
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  //    48      CARG_1: spill slot for outgoing arg 1. used by next callee.
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  //    ...     ...
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  //    104     CARG_8: spill slot for outgoing arg 8. used by next callee.
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  //
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 public:
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  // C frame layout
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  static const int alignment_in_bytes = 16;
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  // ABI_MINFRAME:
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  struct abi_minframe {
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    uint64_t callers_sp;
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    uint64_t cr;                                  //_16
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    uint64_t lr;
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#if !defined(ABI_ELFv2)
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    uint64_t reserved1;                           //_16
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    uint64_t reserved2;
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#endif
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    uint64_t toc;                                 //_16
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    // nothing to add here!
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    // aligned to frame::alignment_in_bytes (16)
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  };
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  enum {
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    abi_minframe_size = sizeof(abi_minframe)
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  };
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  struct abi_reg_args : abi_minframe {
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    uint64_t carg_1;
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    uint64_t carg_2;                              //_16
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    uint64_t carg_3;
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    uint64_t carg_4;                              //_16
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    uint64_t carg_5;
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    uint64_t carg_6;                              //_16
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    uint64_t carg_7;
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    uint64_t carg_8;                              //_16
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    // aligned to frame::alignment_in_bytes (16)
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  };
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  enum {
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    abi_reg_args_size = sizeof(abi_reg_args)
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  };
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  #define _abi(_component) \
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          (offset_of(frame::abi_reg_args, _component))
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  struct abi_reg_args_spill : abi_reg_args {
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    // additional spill slots
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    uint64_t spill_ret;
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    uint64_t spill_fret;                          //_16
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    // aligned to frame::alignment_in_bytes (16)
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  };
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  enum {
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    abi_reg_args_spill_size = sizeof(abi_reg_args_spill)
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  };
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  #define _abi_reg_args_spill(_component) \
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          (offset_of(frame::abi_reg_args_spill, _component))
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  // non-volatile GPRs:
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  struct spill_nonvolatiles {
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    uint64_t r14;
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    uint64_t r15;                                 //_16
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    uint64_t r16;
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    uint64_t r17;                                 //_16
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    uint64_t r18;
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    uint64_t r19;                                 //_16
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    uint64_t r20;
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    uint64_t r21;                                 //_16
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    uint64_t r22;
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    uint64_t r23;                                 //_16
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    uint64_t r24;
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    uint64_t r25;                                 //_16
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    uint64_t r26;
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    uint64_t r27;                                 //_16
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    uint64_t r28;
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    uint64_t r29;                                 //_16
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    uint64_t r30;
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    uint64_t r31;                                 //_16
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    double f14;
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    double f15;
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    double f16;
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    double f17;
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    double f18;
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    double f19;
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    double f20;
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    double f21;
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    double f22;
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    double f23;
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    double f24;
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    double f25;
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    double f26;
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    double f27;
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    double f28;
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    double f29;
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    double f30;
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    double f31;
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    // aligned to frame::alignment_in_bytes (16)
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  };
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  enum {
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    spill_nonvolatiles_size = sizeof(spill_nonvolatiles)
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  };
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  #define _spill_nonvolatiles_neg(_component) \
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     (int)(-frame::spill_nonvolatiles_size + offset_of(frame::spill_nonvolatiles, _component))
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  // Frame layout for the Java template interpreter on PPC64.
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  //
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  // In these figures the stack grows upwards, while memory grows
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  // downwards. Square brackets denote regions possibly larger than
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  // single 64 bit slots.
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  //
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  //  STACK (interpreter is active):
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  //    0       [TOP_IJAVA_FRAME]
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  //            [PARENT_IJAVA_FRAME]
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  //            ...
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  //            [PARENT_IJAVA_FRAME]
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  //            [ENTRY_FRAME]
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  //            [C_FRAME]
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  //            ...
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  //            [C_FRAME]
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  //
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  //  With the following frame layouts:
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  //  TOP_IJAVA_FRAME:
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  //    0       [TOP_IJAVA_FRAME_ABI]
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  //            alignment (optional)
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  //            [operand stack]
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  //            [monitors] (optional)
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  //            [IJAVA_STATE]
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  //            note: own locals are located in the caller frame.
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  //
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  //  PARENT_IJAVA_FRAME:
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  //    0       [PARENT_IJAVA_FRAME_ABI]
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  //            alignment (optional)
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  //            [callee's Java result]
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  //            [callee's locals w/o arguments]
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  //            [outgoing arguments]
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  //            [used part of operand stack w/o arguments]
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  //            [monitors] (optional)
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  //            [IJAVA_STATE]
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  //
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  //  ENTRY_FRAME:
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  //    0       [PARENT_IJAVA_FRAME_ABI]
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  //            alignment (optional)
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  //            [callee's Java result]
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  //            [callee's locals w/o arguments]
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  //            [outgoing arguments]
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  //            [ENTRY_FRAME_LOCALS]
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  struct parent_ijava_frame_abi : abi_minframe {
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  };
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  enum {
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    parent_ijava_frame_abi_size = sizeof(parent_ijava_frame_abi)
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  };
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#define _parent_ijava_frame_abi(_component) \
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        (offset_of(frame::parent_ijava_frame_abi, _component))
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  struct top_ijava_frame_abi : abi_reg_args {
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  };
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  enum {
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    top_ijava_frame_abi_size = sizeof(top_ijava_frame_abi)
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  };
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#define _top_ijava_frame_abi(_component) \
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        (offset_of(frame::top_ijava_frame_abi, _component))
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  struct ijava_state {
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#ifdef ASSERT
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    uint64_t ijava_reserved; // Used for assertion.
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#endif
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    uint64_t method;
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    uint64_t mirror;
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    uint64_t locals;
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    uint64_t monitors;
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    uint64_t cpoolCache;
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    uint64_t bcp;
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    uint64_t esp;
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    uint64_t mdx;
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    uint64_t top_frame_sp; // Maybe define parent_frame_abi and move there.
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    uint64_t sender_sp;
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    // Slots only needed for native calls. Maybe better to move elsewhere.
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    uint64_t oop_tmp;
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    uint64_t lresult;
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    uint64_t fresult;
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  };
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  enum {
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    ijava_state_size = sizeof(ijava_state)
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  };
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#define _ijava_state_neg(_component) \
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        (int) (-frame::ijava_state_size + offset_of(frame::ijava_state, _component))
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22824
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  // ENTRY_FRAME
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  struct entry_frame_locals {
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    uint64_t call_wrapper_address;
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    uint64_t result_address;                      //_16
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    uint64_t result_type;
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    uint64_t arguments_tos_address;               //_16
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    // aligned to frame::alignment_in_bytes (16)
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    uint64_t r[spill_nonvolatiles_size/sizeof(uint64_t)];
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  };
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  enum {
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    entry_frame_locals_size = sizeof(entry_frame_locals)
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  };
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  #define _entry_frame_locals_neg(_component) \
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    (int)(-frame::entry_frame_locals_size + offset_of(frame::entry_frame_locals, _component))
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  //  Frame layout for JIT generated methods
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  //
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  //  In these figures the stack grows upwards, while memory grows
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  //  downwards. Square brackets denote regions possibly larger than single
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  //  64 bit slots.
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  //
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  //  STACK (interpreted Java calls JIT generated Java):
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  //          [JIT_FRAME]                                <-- SP (mod 16 = 0)
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  //          [TOP_IJAVA_FRAME]
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  //         ...
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  //
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  //  JIT_FRAME (is a C frame according to PPC-64 ABI):
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  //          [out_preserve]
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  //          [out_args]
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  //          [spills]
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  //          [pad_1]
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  //          [monitor] (optional)
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  //       ...
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  //          [monitor] (optional)
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  //          [pad_2]
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  //          [in_preserve] added / removed by prolog / epilog
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  //
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  // JIT_ABI (TOP and PARENT)
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  struct jit_abi {
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    uint64_t callers_sp;
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    uint64_t cr;
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    uint64_t lr;
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    uint64_t toc;
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    // Nothing to add here!
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    // NOT ALIGNED to frame::alignment_in_bytes (16).
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  };
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  struct jit_out_preserve : jit_abi {
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    // Nothing to add here!
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  };
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  struct jit_in_preserve {
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    // Nothing to add here!
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  };
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  enum {
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    jit_out_preserve_size = sizeof(jit_out_preserve),
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    jit_in_preserve_size  = sizeof(jit_in_preserve)
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  };
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  struct jit_monitor {
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    uint64_t monitor[1];
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  };
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  enum {
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    jit_monitor_size = sizeof(jit_monitor),
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  };
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 private:
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  //  STACK:
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  //            ...
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  //            [THIS_FRAME]             <-- this._sp (stack pointer for this frame)
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  //            [CALLER_FRAME]           <-- this.fp() (_sp of caller's frame)
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  //            ...
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  //
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  // frame pointer for this frame
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  intptr_t* _fp;
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   364
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  // The frame's stack pointer before it has been extended by a c2i adapter;
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  // needed by deoptimization
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  intptr_t* _unextended_sp;
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 public:
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  // Accessors for fields
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  intptr_t* fp() const { return _fp; }
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   374
  // Accessors for ABIs
23211
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  inline abi_minframe* own_abi()     const { return (abi_minframe*) _sp; }
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  inline abi_minframe* callers_abi() const { return (abi_minframe*) _fp; }
22824
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 private:
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  // Find codeblob and set deopt_state.
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  inline void find_codeblob_and_set_pc_and_deopt_state(address pc);
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 public:
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   385
  // Constructors
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   386
  inline frame(intptr_t* sp);
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   387
  frame(intptr_t* sp, address pc);
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   388
  inline frame(intptr_t* sp, address pc, intptr_t* unextended_sp);
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 private:
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   391
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   392
  intptr_t* compiled_sender_sp(CodeBlob* cb) const;
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   393
  address*  compiled_sender_pc_addr(CodeBlob* cb) const;
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   394
  address*  sender_pc_addr(void) const;
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   395
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 public:
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   397
23221
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   398
  inline ijava_state* get_ijava_state() const;
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   399
  // Some convenient register frame setters/getters for deoptimization.
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   400
  inline intptr_t* interpreter_frame_esp() const;
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   401
  inline void interpreter_frame_set_cpcache(ConstantPoolCache* cp);
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   402
  inline void interpreter_frame_set_esp(intptr_t* esp);
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   403
  inline void interpreter_frame_set_top_frame_sp(intptr_t* top_frame_sp);
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   404
  inline void interpreter_frame_set_sender_sp(intptr_t* sender_sp);
22824
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   405
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   406
  // Size of a monitor in bytes.
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   407
  static int interpreter_frame_monitor_size_in_bytes();
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   408
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   409
  // The size of a cInterpreter object.
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   410
  static inline int interpreter_frame_cinterpreterstate_size_in_bytes();
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   411
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   412
 private:
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   413
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   414
  ConstantPoolCache** interpreter_frame_cpoolcache_addr() const;
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   415
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   416
 public:
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   417
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   418
  // Additional interface for entry frames:
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   419
  inline entry_frame_locals* get_entry_frame_locals() const {
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   420
    return (entry_frame_locals*) (((address) fp()) - entry_frame_locals_size);
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   421
  }
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   422
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   423
  enum {
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   424
    // normal return address is 1 bundle past PC
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   425
    pc_return_offset = 0
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   426
  };
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   427
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#endif // CPU_PPC_VM_FRAME_PPC_HPP