hotspot/src/cpu/ppc/vm/macroAssembler_ppc.hpp
author stefank
Wed, 12 Nov 2014 12:41:59 +0100
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8064581: Move INCLUDE_ALL_GCS include section to the end of the include list Reviewed-by: jwilhelm, brutisso, coleenp, dholmes
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/*
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 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
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 * Copyright 2012, 2014 SAP AG. 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_MACROASSEMBLER_PPC_HPP
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#define CPU_PPC_VM_MACROASSEMBLER_PPC_HPP
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#include "asm/assembler.hpp"
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#include "utilities/macros.hpp"
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// MacroAssembler extends Assembler by a few frequently used macros.
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class ciTypeArray;
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class MacroAssembler: public Assembler {
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 public:
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  MacroAssembler(CodeBuffer* code) : Assembler(code) {}
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  //
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  // Optimized instruction emitters
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  //
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  inline static int largeoffset_si16_si16_hi(int si31) { return (si31 + (1<<15)) >> 16; }
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  inline static int largeoffset_si16_si16_lo(int si31) { return si31 - (((si31 + (1<<15)) >> 16) << 16); }
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  // load d = *[a+si31]
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  // Emits several instructions if the offset is not encodable in one instruction.
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  void ld_largeoffset_unchecked(Register d, int si31, Register a, int emit_filler_nop);
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  void ld_largeoffset          (Register d, int si31, Register a, int emit_filler_nop);
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  inline static bool is_ld_largeoffset(address a);
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  inline static int get_ld_largeoffset_offset(address a);
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  inline void round_to(Register r, int modulus);
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  // Load/store with type given by parameter.
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  void load_sized_value( Register dst, RegisterOrConstant offs, Register base, size_t size_in_bytes, bool is_signed);
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  void store_sized_value(Register dst, RegisterOrConstant offs, Register base, size_t size_in_bytes);
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  // Move register if destination register and target register are different
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  inline void mr_if_needed(Register rd, Register rs);
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  inline void fmr_if_needed(FloatRegister rd, FloatRegister rs);
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  // This is dedicated for emitting scheduled mach nodes. For better
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  // readability of the ad file I put it here.
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  // Endgroups are not needed if
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  //  - the scheduler is off
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  //  - the scheduler found that there is a natural group end, in that
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  //    case it reduced the size of the instruction used in the test
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  //    yielding 'needed'.
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  inline void endgroup_if_needed(bool needed);
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  // Memory barriers.
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  inline void membar(int bits);
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  inline void release();
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  inline void acquire();
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  inline void fence();
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  // nop padding
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  void align(int modulus, int max = 252, int rem = 0);
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  //
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  // Constants, loading constants, TOC support
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  //
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  // Address of the global TOC.
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  inline static address global_toc();
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  // Offset of given address to the global TOC.
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  inline static int offset_to_global_toc(const address addr);
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  // Address of TOC of the current method.
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  inline address method_toc();
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  // Offset of given address to TOC of the current method.
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  inline int offset_to_method_toc(const address addr);
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  // Global TOC.
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  void calculate_address_from_global_toc(Register dst, address addr,
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                                         bool hi16 = true, bool lo16 = true,
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                                         bool add_relocation = true, bool emit_dummy_addr = false);
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  inline void calculate_address_from_global_toc_hi16only(Register dst, address addr) {
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    calculate_address_from_global_toc(dst, addr, true, false);
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  };
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  inline void calculate_address_from_global_toc_lo16only(Register dst, address addr) {
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    calculate_address_from_global_toc(dst, addr, false, true);
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  };
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  inline static bool is_calculate_address_from_global_toc_at(address a, address bound);
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  static int patch_calculate_address_from_global_toc_at(address a, address addr, address bound);
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  static address get_address_of_calculate_address_from_global_toc_at(address a, address addr);
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#ifdef _LP64
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  // Patch narrow oop constant.
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  inline static bool is_set_narrow_oop(address a, address bound);
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  static int patch_set_narrow_oop(address a, address bound, narrowOop data);
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  static narrowOop get_narrow_oop(address a, address bound);
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#endif
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  inline static bool is_load_const_at(address a);
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  // Emits an oop const to the constant pool, loads the constant, and
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  // sets a relocation info with address current_pc.
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  void load_const_from_method_toc(Register dst, AddressLiteral& a, Register toc);
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  void load_toc_from_toc(Register dst, AddressLiteral& a, Register toc) {
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    assert(dst == R2_TOC, "base register must be TOC");
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    load_const_from_method_toc(dst, a, toc);
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  }
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  static bool is_load_const_from_method_toc_at(address a);
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  static int get_offset_of_load_const_from_method_toc_at(address a);
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  // Get the 64 bit constant from a `load_const' sequence.
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  static long get_const(address load_const);
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  // Patch the 64 bit constant of a `load_const' sequence. This is a
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  // low level procedure. It neither flushes the instruction cache nor
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  // is it atomic.
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  static void patch_const(address load_const, long x);
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  // Metadata in code that we have to keep track of.
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  AddressLiteral allocate_metadata_address(Metadata* obj); // allocate_index
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  AddressLiteral constant_metadata_address(Metadata* obj); // find_index
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  // Oops used directly in compiled code are stored in the constant pool,
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  // and loaded from there.
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  // Allocate new entry for oop in constant pool. Generate relocation.
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  AddressLiteral allocate_oop_address(jobject obj);
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  // Find oop obj in constant pool. Return relocation with it's index.
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  AddressLiteral constant_oop_address(jobject obj);
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   147
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  // Find oop in constant pool and emit instructions to load it.
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  // Uses constant_oop_address.
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  inline void set_oop_constant(jobject obj, Register d);
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  // Same as load_address.
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  inline void set_oop         (AddressLiteral obj_addr, Register d);
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   153
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  // Read runtime constant:  Issue load if constant not yet established,
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  // else use real constant.
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  virtual RegisterOrConstant delayed_value_impl(intptr_t* delayed_value_addr,
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                                                Register tmp,
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                                                int offset);
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  //
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  // branch, jump
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  //
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   163
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  inline void pd_patch_instruction(address branch, address target);
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  NOT_PRODUCT(static void pd_print_patched_instruction(address branch);)
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   166
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  // Conditional far branch for destinations encodable in 24+2 bits.
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  // Same interface as bc, e.g. no inverse boint-field.
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  enum {
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    bc_far_optimize_not         = 0,
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    bc_far_optimize_on_relocate = 1
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  };
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  // optimize: flag for telling the conditional far branch to optimize
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  //           itself when relocated.
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  void bc_far(int boint, int biint, Label& dest, int optimize);
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  // Relocation of conditional far branches.
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  static bool    is_bc_far_at(address instruction_addr);
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  static address get_dest_of_bc_far_at(address instruction_addr);
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  static void    set_dest_of_bc_far_at(address instruction_addr, address dest);
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 private:
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  static bool inline is_bc_far_variant1_at(address instruction_addr);
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  static bool inline is_bc_far_variant2_at(address instruction_addr);
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  static bool inline is_bc_far_variant3_at(address instruction_addr);
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 public:
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  // Convenience bc_far versions.
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  inline void blt_far(ConditionRegister crx, Label& L, int optimize);
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  inline void bgt_far(ConditionRegister crx, Label& L, int optimize);
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  inline void beq_far(ConditionRegister crx, Label& L, int optimize);
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  inline void bso_far(ConditionRegister crx, Label& L, int optimize);
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  inline void bge_far(ConditionRegister crx, Label& L, int optimize);
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  inline void ble_far(ConditionRegister crx, Label& L, int optimize);
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  inline void bne_far(ConditionRegister crx, Label& L, int optimize);
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  inline void bns_far(ConditionRegister crx, Label& L, int optimize);
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   195
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  // Emit, identify and patch a NOT mt-safe patchable 64 bit absolute call/jump.
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 private:
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  enum {
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    bxx64_patchable_instruction_count = (2/*load_codecache_const*/ + 3/*5load_const*/ + 1/*mtctr*/ + 1/*bctrl*/),
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    bxx64_patchable_size              = bxx64_patchable_instruction_count * BytesPerInstWord,
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    bxx64_patchable_ret_addr_offset   = bxx64_patchable_size
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  };
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  void bxx64_patchable(address target, relocInfo::relocType rt, bool link);
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  static bool is_bxx64_patchable_at(            address instruction_addr, bool link);
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  // Does the instruction use a pc-relative encoding of the destination?
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  static bool is_bxx64_patchable_pcrelative_at( address instruction_addr, bool link);
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  static bool is_bxx64_patchable_variant1_at(   address instruction_addr, bool link);
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  // Load destination relative to global toc.
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  static bool is_bxx64_patchable_variant1b_at(  address instruction_addr, bool link);
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  static bool is_bxx64_patchable_variant2_at(   address instruction_addr, bool link);
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  static void set_dest_of_bxx64_patchable_at(   address instruction_addr, address target, bool link);
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  static address get_dest_of_bxx64_patchable_at(address instruction_addr, bool link);
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 public:
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  // call
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  enum {
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    bl64_patchable_instruction_count = bxx64_patchable_instruction_count,
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    bl64_patchable_size              = bxx64_patchable_size,
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    bl64_patchable_ret_addr_offset   = bxx64_patchable_ret_addr_offset
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  };
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  inline void bl64_patchable(address target, relocInfo::relocType rt) {
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    bxx64_patchable(target, rt, /*link=*/true);
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   223
  }
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  inline static bool is_bl64_patchable_at(address instruction_addr) {
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    return is_bxx64_patchable_at(instruction_addr, /*link=*/true);
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  }
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  inline static bool is_bl64_patchable_pcrelative_at(address instruction_addr) {
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    return is_bxx64_patchable_pcrelative_at(instruction_addr, /*link=*/true);
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  }
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  inline static void set_dest_of_bl64_patchable_at(address instruction_addr, address target) {
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    set_dest_of_bxx64_patchable_at(instruction_addr, target, /*link=*/true);
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  }
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  inline static address get_dest_of_bl64_patchable_at(address instruction_addr) {
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    return get_dest_of_bxx64_patchable_at(instruction_addr, /*link=*/true);
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   235
  }
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  // jump
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  enum {
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    b64_patchable_instruction_count = bxx64_patchable_instruction_count,
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   239
    b64_patchable_size              = bxx64_patchable_size,
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   240
  };
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  inline void b64_patchable(address target, relocInfo::relocType rt) {
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    bxx64_patchable(target, rt, /*link=*/false);
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   243
  }
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  inline static bool is_b64_patchable_at(address instruction_addr) {
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    return is_bxx64_patchable_at(instruction_addr, /*link=*/false);
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  }
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  inline static bool is_b64_patchable_pcrelative_at(address instruction_addr) {
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    return is_bxx64_patchable_pcrelative_at(instruction_addr, /*link=*/false);
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  }
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  inline static void set_dest_of_b64_patchable_at(address instruction_addr, address target) {
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    set_dest_of_bxx64_patchable_at(instruction_addr, target, /*link=*/false);
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  }
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  inline static address get_dest_of_b64_patchable_at(address instruction_addr) {
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    return get_dest_of_bxx64_patchable_at(instruction_addr, /*link=*/false);
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  }
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  //
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  // Support for frame handling
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  //
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  // some ABI-related functions
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  void save_nonvolatile_gprs(   Register dst_base, int offset);
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  void restore_nonvolatile_gprs(Register src_base, int offset);
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  void save_volatile_gprs(   Register dst_base, int offset);
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  void restore_volatile_gprs(Register src_base, int offset);
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  void save_LR_CR(   Register tmp);     // tmp contains LR on return.
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  void restore_LR_CR(Register tmp);
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   268
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  // Get current PC using bl-next-instruction trick.
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  address get_PC_trash_LR(Register result);
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   271
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  // Resize current frame either relatively wrt to current SP or absolute.
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  void resize_frame(Register offset, Register tmp);
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  void resize_frame(int      offset, Register tmp);
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  void resize_frame_absolute(Register addr, Register tmp1, Register tmp2);
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   276
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  // Push a frame of size bytes.
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  void push_frame(Register bytes, Register tmp);
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parents:
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   279
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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   280
  // Push a frame of size `bytes'. No abi space provided.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   281
  void push_frame(unsigned int bytes, Register tmp);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   282
23211
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parents: 22861
diff changeset
   283
  // Push a frame of size `bytes' plus abi_reg_args on top.
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
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diff changeset
   284
  void push_frame_reg_args(unsigned int bytes, Register tmp);
22824
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parents:
diff changeset
   285
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   286
  // Setup up a new C frame with a spill area for non-volatile GPRs and additional
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   287
  // space for local variables
23211
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
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diff changeset
   288
  void push_frame_reg_args_nonvolatiles(unsigned int bytes, Register tmp);
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   289
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   290
  // pop current C frame
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   291
  void pop_frame();
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   292
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   293
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   294
  // Calls
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   295
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   296
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   297
 private:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   298
  address _last_calls_return_pc;
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   299
23211
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
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diff changeset
   300
#if defined(ABI_ELFv2)
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   301
  // Generic version of a call to C function.
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   302
  // Updates and returns _last_calls_return_pc.
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
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diff changeset
   303
  address branch_to(Register function_entry, bool and_link);
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   304
#else
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   305
  // Generic version of a call to C function via a function descriptor
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   306
  // with variable support for C calling conventions (TOC, ENV, etc.).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   307
  // updates and returns _last_calls_return_pc.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   308
  address branch_to(Register function_descriptor, bool and_link, bool save_toc_before_call,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   309
                    bool restore_toc_after_call, bool load_toc_of_callee, bool load_env_of_callee);
23211
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
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diff changeset
   310
#endif
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   311
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   312
 public:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   313
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   314
  // Get the pc where the last call will return to. returns _last_calls_return_pc.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   315
  inline address last_calls_return_pc();
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   316
23211
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
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diff changeset
   317
#if defined(ABI_ELFv2)
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   318
  // Call a C function via a function descriptor and use full C
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   319
  // calling conventions. Updates and returns _last_calls_return_pc.
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   320
  address call_c(Register function_entry);
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   321
  // For tail calls: only branch, don't link, so callee returns to caller of this function.
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   322
  address call_c_and_return_to_caller(Register function_entry);
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   323
  address call_c(address function_entry, relocInfo::relocType rt);
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   324
#else
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
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parents:
diff changeset
   325
  // Call a C function via a function descriptor and use full C
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   326
  // calling conventions. Updates and returns _last_calls_return_pc.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   327
  address call_c(Register function_descriptor);
22861
f5c393d456fc 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 22843
diff changeset
   328
  // For tail calls: only branch, don't link, so callee returns to caller of this function.
f5c393d456fc 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 22843
diff changeset
   329
  address call_c_and_return_to_caller(Register function_descriptor);
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   330
  address call_c(const FunctionDescriptor* function_descriptor, relocInfo::relocType rt);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   331
  address call_c_using_toc(const FunctionDescriptor* function_descriptor, relocInfo::relocType rt,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   332
                           Register toc);
23211
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   333
#endif
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   334
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   335
 protected:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   336
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   337
  // It is imperative that all calls into the VM are handled via the
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   338
  // call_VM macros. They make sure that the stack linkage is setup
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   339
  // correctly. call_VM's correspond to ENTRY/ENTRY_X entry points
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   340
  // while call_VM_leaf's correspond to LEAF entry points.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   341
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   342
  // This is the base routine called by the different versions of
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   343
  // call_VM. The interpreter may customize this version by overriding
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   344
  // it for its purposes (e.g., to save/restore additional registers
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   345
  // when doing a VM call).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   346
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   347
  // If no last_java_sp is specified (noreg) then SP will be used instead.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   348
  virtual void call_VM_base(
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   349
     // where an oop-result ends up if any; use noreg otherwise
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   350
    Register        oop_result,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   351
    // to set up last_Java_frame in stubs; use noreg otherwise
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   352
    Register        last_java_sp,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   353
    // the entry point
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   354
    address         entry_point,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   355
    // flag which indicates if exception should be checked
22861
f5c393d456fc 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 22843
diff changeset
   356
    bool            check_exception = true
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   357
  );
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   358
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   359
  // Support for VM calls. This is the base routine called by the
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   360
  // different versions of call_VM_leaf. The interpreter may customize
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   361
  // this version by overriding it for its purposes (e.g., to
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   362
  // save/restore additional registers when doing a VM call).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   363
  void call_VM_leaf_base(address entry_point);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   364
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   365
 public:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   366
  // Call into the VM.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   367
  // Passes the thread pointer (in R3_ARG1) as a prepended argument.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   368
  // Makes sure oop return values are visible to the GC.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   369
  void call_VM(Register oop_result, address entry_point, bool check_exceptions = true);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   370
  void call_VM(Register oop_result, address entry_point, Register arg_1, bool check_exceptions = true);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   371
  void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, bool check_exceptions = true);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   372
  void call_VM_leaf(address entry_point);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   373
  void call_VM_leaf(address entry_point, Register arg_1);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   374
  void call_VM_leaf(address entry_point, Register arg_1, Register arg_2);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   375
  void call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   376
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   377
  // Call a stub function via a function descriptor, but don't save
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   378
  // TOC before call, don't setup TOC and ENV for call, and don't
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   379
  // restore TOC after call. Updates and returns _last_calls_return_pc.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   380
  inline address call_stub(Register function_entry);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   381
  inline void call_stub_and_return_to(Register function_entry, Register return_pc);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   382
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   383
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   384
  // Java utilities
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   385
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   386
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   387
  // Read from the polling page, its address is already in a register.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   388
  inline void load_from_polling_page(Register polling_page_address, int offset = 0);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   389
  // Check whether instruction is a read access to the polling page
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   390
  // which was emitted by load_from_polling_page(..).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   391
  static bool is_load_from_polling_page(int instruction, void* ucontext/*may be NULL*/,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   392
                                        address* polling_address_ptr = NULL);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   393
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   394
  // Check whether instruction is a write access to the memory
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   395
  // serialization page realized by one of the instructions stw, stwu,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   396
  // stwx, or stwux.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   397
  static bool is_memory_serialization(int instruction, JavaThread* thread, void* ucontext);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   398
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   399
  // Support for NULL-checks
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   400
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   401
  // Generates code that causes a NULL OS exception if the content of reg is NULL.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   402
  // If the accessed location is M[reg + offset] and the offset is known, provide the
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   403
  // offset. No explicit code generation is needed if the offset is within a certain
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   404
  // range (0 <= offset <= page_size).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   405
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   406
  // Stack overflow checking
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   407
  void bang_stack_with_offset(int offset);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   408
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   409
  // If instruction is a stack bang of the form ld, stdu, or
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   410
  // stdux, return the banged address. Otherwise, return 0.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   411
  static address get_stack_bang_address(int instruction, void* ucontext);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   412
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   413
  // Atomics
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   414
  // CmpxchgX sets condition register to cmpX(current, compare).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   415
  // (flag == ne) => (dest_current_value != compare_value), (!swapped)
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   416
  // (flag == eq) => (dest_current_value == compare_value), ( swapped)
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   417
  static inline bool cmpxchgx_hint_acquire_lock()  { return true; }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   418
  // The stxcx will probably not be succeeded by a releasing store.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   419
  static inline bool cmpxchgx_hint_release_lock()  { return false; }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   420
  static inline bool cmpxchgx_hint_atomic_update() { return false; }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   421
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   422
  // Cmpxchg semantics
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   423
  enum {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   424
    MemBarNone = 0,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   425
    MemBarRel  = 1,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   426
    MemBarAcq  = 2,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   427
    MemBarFenceAfter = 4 // use powers of 2
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   428
  };
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   429
  void cmpxchgw(ConditionRegister flag,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   430
                Register dest_current_value, Register compare_value, Register exchange_value, Register addr_base,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   431
                int semantics, bool cmpxchgx_hint = false,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   432
                Register int_flag_success = noreg, bool contention_hint = false);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   433
  void cmpxchgd(ConditionRegister flag,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   434
                Register dest_current_value, Register compare_value, Register exchange_value, Register addr_base,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   435
                int semantics, bool cmpxchgx_hint = false,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   436
                Register int_flag_success = noreg, Label* failed = NULL, bool contention_hint = false);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   437
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   438
  // interface method calling
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   439
  void lookup_interface_method(Register recv_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   440
                               Register intf_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   441
                               RegisterOrConstant itable_index,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   442
                               Register method_result,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   443
                               Register temp_reg, Register temp2_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   444
                               Label& no_such_interface);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   445
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   446
  // virtual method calling
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   447
  void lookup_virtual_method(Register recv_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   448
                             RegisterOrConstant vtable_index,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   449
                             Register method_result);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   450
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   451
  // Test sub_klass against super_klass, with fast and slow paths.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   452
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   453
  // The fast path produces a tri-state answer: yes / no / maybe-slow.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   454
  // One of the three labels can be NULL, meaning take the fall-through.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   455
  // If super_check_offset is -1, the value is loaded up from super_klass.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   456
  // No registers are killed, except temp_reg and temp2_reg.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   457
  // If super_check_offset is not -1, temp2_reg is not used and can be noreg.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   458
  void check_klass_subtype_fast_path(Register sub_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   459
                                     Register super_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   460
                                     Register temp1_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   461
                                     Register temp2_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   462
                                     Label& L_success,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   463
                                     Label& L_failure);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   464
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   465
  // The rest of the type check; must be wired to a corresponding fast path.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   466
  // It does not repeat the fast path logic, so don't use it standalone.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   467
  // The temp_reg can be noreg, if no temps are available.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   468
  // It can also be sub_klass or super_klass, meaning it's OK to kill that one.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   469
  // Updates the sub's secondary super cache as necessary.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   470
  void check_klass_subtype_slow_path(Register sub_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   471
                                     Register super_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   472
                                     Register temp1_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   473
                                     Register temp2_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   474
                                     Label* L_success = NULL,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   475
                                     Register result_reg = noreg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   476
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   477
  // Simplified, combined version, good for typical uses.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   478
  // Falls through on failure.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   479
  void check_klass_subtype(Register sub_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   480
                           Register super_klass,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   481
                           Register temp1_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   482
                           Register temp2_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   483
                           Label& L_success);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   484
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   485
  // Method handle support (JSR 292).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   486
  void check_method_handle_type(Register mtype_reg, Register mh_reg, Register temp_reg, Label& wrong_method_type);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   487
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   488
  RegisterOrConstant argument_offset(RegisterOrConstant arg_slot, Register temp_reg, int extra_slot_offset = 0);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   489
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   490
  // Biased locking support
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   491
  // Upon entry,obj_reg must contain the target object, and mark_reg
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   492
  // must contain the target object's header.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   493
  // Destroys mark_reg if an attempt is made to bias an anonymously
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   494
  // biased lock. In this case a failure will go either to the slow
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   495
  // case or fall through with the notEqual condition code set with
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   496
  // the expectation that the slow case in the runtime will be called.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   497
  // In the fall-through case where the CAS-based lock is done,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   498
  // mark_reg is not destroyed.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   499
  void biased_locking_enter(ConditionRegister cr_reg, Register obj_reg, Register mark_reg, Register temp_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   500
                            Register temp2_reg, Label& done, Label* slow_case = NULL);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   501
  // Upon entry, the base register of mark_addr must contain the oop.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   502
  // Destroys temp_reg.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   503
  // If allow_delay_slot_filling is set to true, the next instruction
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   504
  // emitted after this one will go in an annulled delay slot if the
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   505
  // biased locking exit case failed.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   506
  void biased_locking_exit(ConditionRegister cr_reg, Register mark_addr, Register temp_reg, Label& done);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   507
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   508
  void compiler_fast_lock_object(  ConditionRegister flag, Register oop, Register box, Register tmp1, Register tmp2, Register tmp3);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   509
  void compiler_fast_unlock_object(ConditionRegister flag, Register oop, Register box, Register tmp1, Register tmp2, Register tmp3);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   510
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   511
  // Support for serializing memory accesses between threads
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   512
  void serialize_memory(Register thread, Register tmp1, Register tmp2);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   513
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   514
  // GC barrier support.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   515
  void card_write_barrier_post(Register Rstore_addr, Register Rnew_val, Register Rtmp);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   516
  void card_table_write(jbyte* byte_map_base, Register Rtmp, Register Robj);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   517
23492
af5352f40e65 8037915: PPC64/AIX: Several smaller fixes
goetz
parents: 23221
diff changeset
   518
#if INCLUDE_ALL_GCS
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   519
  // General G1 pre-barrier generator.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   520
  void g1_write_barrier_pre(Register Robj, RegisterOrConstant offset, Register Rpre_val,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   521
                            Register Rtmp1, Register Rtmp2, bool needs_frame = false);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   522
  // General G1 post-barrier generator
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   523
  void g1_write_barrier_post(Register Rstore_addr, Register Rnew_val, Register Rtmp1,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   524
                             Register Rtmp2, Register Rtmp3, Label *filtered_ext = NULL);
23492
af5352f40e65 8037915: PPC64/AIX: Several smaller fixes
goetz
parents: 23221
diff changeset
   525
#endif
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   526
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   527
  // Support for managing the JavaThread pointer (i.e.; the reference to
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   528
  // thread-local information).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   529
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   530
  // Support for last Java frame (but use call_VM instead where possible):
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   531
  // access R16_thread->last_Java_sp.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   532
  void set_last_Java_frame(Register last_java_sp, Register last_Java_pc);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   533
  void reset_last_Java_frame(void);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   534
  void set_top_ijava_frame_at_SP_as_last_Java_frame(Register sp, Register tmp1);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   535
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   536
  // Read vm result from thread: oop_result = R16_thread->result;
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   537
  void get_vm_result  (Register oop_result);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   538
  void get_vm_result_2(Register metadata_result);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   539
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   540
  static bool needs_explicit_null_check(intptr_t offset);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   541
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   542
  // Trap-instruction-based checks.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   543
  // Range checks can be distinguished from zero checks as they check 32 bit,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   544
  // zero checks all 64 bits (tw, td).
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   545
  inline void trap_null_check(Register a, trap_to_bits cmp = traptoEqual);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   546
  static bool is_trap_null_check(int x) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   547
    return is_tdi(x, traptoEqual,               -1/*any reg*/, 0) ||
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   548
           is_tdi(x, traptoGreaterThanUnsigned, -1/*any reg*/, 0);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   549
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   550
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   551
  inline void trap_zombie_not_entrant();
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   552
  static bool is_trap_zombie_not_entrant(int x) { return is_tdi(x, traptoUnconditional, 0/*reg 0*/, 1); }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   553
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   554
  inline void trap_should_not_reach_here();
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   555
  static bool is_trap_should_not_reach_here(int x) { return is_tdi(x, traptoUnconditional, 0/*reg 0*/, 2); }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   556
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   557
  inline void trap_ic_miss_check(Register a, Register b);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   558
  static bool is_trap_ic_miss_check(int x) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   559
    return is_td(x, traptoGreaterThanUnsigned | traptoLessThanUnsigned, -1/*any reg*/, -1/*any reg*/);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   560
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   561
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   562
  // Implicit or explicit null check, jumps to static address exception_entry.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   563
  inline void null_check_throw(Register a, int offset, Register temp_reg, address exception_entry);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   564
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   565
  // Check accessed object for null. Use SIGTRAP-based null checks on AIX.
22861
f5c393d456fc 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 22843
diff changeset
   566
  inline void load_with_trap_null_check(Register d, int si16, Register s1);
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   567
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   568
  // Load heap oop and decompress. Loaded oop may not be null.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   569
  inline void load_heap_oop_not_null(Register d, RegisterOrConstant offs, Register s1 = noreg);
23221
b70675ece1ce 8036976: PPC64: implement the template interpreter
goetz
parents: 23211
diff changeset
   570
  inline void store_heap_oop_not_null(Register d, RegisterOrConstant offs, Register s1,
b70675ece1ce 8036976: PPC64: implement the template interpreter
goetz
parents: 23211
diff changeset
   571
                                      /*specify if d must stay uncompressed*/ Register tmp = noreg);
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   572
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   573
  // Null allowed.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   574
  inline void load_heap_oop(Register d, RegisterOrConstant offs, Register s1 = noreg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   575
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   576
  // Encode/decode heap oop. Oop may not be null, else en/decoding goes wrong.
23221
b70675ece1ce 8036976: PPC64: implement the template interpreter
goetz
parents: 23211
diff changeset
   577
  inline Register encode_heap_oop_not_null(Register d, Register src = noreg);
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   578
  inline void decode_heap_oop_not_null(Register d);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   579
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   580
  // Null allowed.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   581
  inline void decode_heap_oop(Register d);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   582
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   583
  // Load/Store klass oop from klass field. Compress.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   584
  void load_klass(Register dst, Register src);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   585
  void load_klass_with_trap_null_check(Register dst, Register src);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   586
  void store_klass(Register dst_oop, Register klass, Register tmp = R0);
23221
b70675ece1ce 8036976: PPC64: implement the template interpreter
goetz
parents: 23211
diff changeset
   587
  void store_klass_gap(Register dst_oop, Register val = noreg); // Will store 0 if val not specified.
22843
b245fac3b6a4 8027968: Adapt PPC to 8024927: Nashorn performance regression with CompressedOops
goetz
parents: 22824
diff changeset
   588
  static int instr_size_for_decode_klass_not_null();
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   589
  void decode_klass_not_null(Register dst, Register src = noreg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   590
  void encode_klass_not_null(Register dst, Register src = noreg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   591
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   592
  // Load common heap base into register.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   593
  void reinit_heapbase(Register d, Register tmp = noreg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   594
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   595
  // SIGTRAP-based range checks for arrays.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   596
  inline void trap_range_check_l(Register a, Register b);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   597
  inline void trap_range_check_l(Register a, int si16);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   598
  static bool is_trap_range_check_l(int x) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   599
    return (is_tw (x, traptoLessThanUnsigned, -1/*any reg*/, -1/*any reg*/) ||
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   600
            is_twi(x, traptoLessThanUnsigned, -1/*any reg*/)                  );
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   601
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   602
  inline void trap_range_check_le(Register a, int si16);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   603
  static bool is_trap_range_check_le(int x) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   604
    return is_twi(x, traptoEqual | traptoLessThanUnsigned, -1/*any reg*/);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   605
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   606
  inline void trap_range_check_g(Register a, int si16);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   607
  static bool is_trap_range_check_g(int x) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   608
    return is_twi(x, traptoGreaterThanUnsigned, -1/*any reg*/);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   609
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   610
  inline void trap_range_check_ge(Register a, Register b);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   611
  inline void trap_range_check_ge(Register a, int si16);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   612
  static bool is_trap_range_check_ge(int x) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   613
    return (is_tw (x, traptoEqual | traptoGreaterThanUnsigned, -1/*any reg*/, -1/*any reg*/) ||
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   614
            is_twi(x, traptoEqual | traptoGreaterThanUnsigned, -1/*any reg*/)                  );
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   615
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   616
  static bool is_trap_range_check(int x) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   617
    return is_trap_range_check_l(x) || is_trap_range_check_le(x) ||
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   618
           is_trap_range_check_g(x) || is_trap_range_check_ge(x);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   619
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   620
22861
f5c393d456fc 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 22843
diff changeset
   621
  void clear_memory_doubleword(Register base_ptr, Register cnt_dwords, Register tmp = R0);
f5c393d456fc 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 22843
diff changeset
   622
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   623
  // Needle of length 1.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   624
  void string_indexof_1(Register result, Register haystack, Register haycnt,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   625
                        Register needle, jchar needleChar,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   626
                        Register tmp1, Register tmp2);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   627
  // General indexof, eventually with constant needle length.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   628
  void string_indexof(Register result, Register haystack, Register haycnt,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   629
                      Register needle, ciTypeArray* needle_values, Register needlecnt, int needlecntval,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   630
                      Register tmp1, Register tmp2, Register tmp3, Register tmp4);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   631
  void string_compare(Register str1_reg, Register str2_reg, Register cnt1_reg, Register cnt2_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   632
                      Register result_reg, Register tmp_reg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   633
  void char_arrays_equals(Register str1_reg, Register str2_reg, Register cnt_reg, Register result_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   634
                          Register tmp1_reg, Register tmp2_reg, Register tmp3_reg, Register tmp4_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   635
                          Register tmp5_reg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   636
  void char_arrays_equalsImm(Register str1_reg, Register str2_reg, int cntval, Register result_reg,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   637
                             Register tmp1_reg, Register tmp2_reg);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   638
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   639
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   640
  // Debugging
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   641
  //
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   642
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   643
  // assert on cr0
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   644
  void asm_assert(bool check_equal, const char* msg, int id);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   645
  void asm_assert_eq(const char* msg, int id) { asm_assert(true, msg, id); }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   646
  void asm_assert_ne(const char* msg, int id) { asm_assert(false, msg, id); }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   647
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   648
 private:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   649
  void asm_assert_mems_zero(bool check_equal, int size, int mem_offset, Register mem_base,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   650
                            const char* msg, int id);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   651
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   652
 public:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   653
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   654
  void asm_assert_mem8_is_zero(int mem_offset, Register mem_base, const char* msg, int id) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   655
    asm_assert_mems_zero(true,  8, mem_offset, mem_base, msg, id);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   656
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   657
  void asm_assert_mem8_isnot_zero(int mem_offset, Register mem_base, const char* msg, int id) {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   658
    asm_assert_mems_zero(false, 8, mem_offset, mem_base, msg, id);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   659
  }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   660
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   661
  // Verify R16_thread contents.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   662
  void verify_thread();
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   663
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   664
  // Emit code to verify that reg contains a valid oop if +VerifyOops is set.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   665
  void verify_oop(Register reg, const char* s = "broken oop");
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   666
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   667
  // TODO: verify method and klass metadata (compare against vptr?)
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   668
  void _verify_method_ptr(Register reg, const char * msg, const char * file, int line) {}
22861
f5c393d456fc 8029940: PPC64 (part 122): C2 compiler port
goetz
parents: 22843
diff changeset
   669
  void _verify_klass_ptr(Register reg, const char * msg, const char * file, int line) {}
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   670
23211
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   671
  // Convenience method returning function entry. For the ELFv1 case
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   672
  // creates function descriptor at the current address and returs
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   673
  // the pointer to it. For the ELFv2 case returns the current address.
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   674
  inline address function_entry();
954e3a81da29 8035647: PPC64: Support for elf v2 abi.
goetz
parents: 22861
diff changeset
   675
22824
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   676
#define verify_method_ptr(reg) _verify_method_ptr(reg, "broken method " #reg, __FILE__, __LINE__)
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   677
#define verify_klass_ptr(reg) _verify_klass_ptr(reg, "broken klass " #reg, __FILE__, __LINE__)
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   678
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   679
 private:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   680
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   681
  enum {
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   682
    stop_stop                = 0,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   683
    stop_untested            = 1,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   684
    stop_unimplemented       = 2,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   685
    stop_shouldnotreachhere  = 3,
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   686
    stop_end                 = 4
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   687
  };
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   688
  void stop(int type, const char* msg, int id);
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   689
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   690
 public:
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   691
  // Prints msg, dumps registers and stops execution.
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   692
  void stop         (const char* msg = "", int id = 0) { stop(stop_stop,               msg, id); }
28258dd5cb2e 8019972: PPC64 (part 9): platform files for interpreter only VM.
goetz
parents:
diff changeset
   693
  void untested     (const char* msg = "", int id = 0) { stop(stop_untested,           msg, id); }
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   694
  void unimplemented(const char* msg = "", int id = 0) { stop(stop_unimplemented,      msg, id); }
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   695
  void should_not_reach_here()                         { stop(stop_shouldnotreachhere,  "", -1); }
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   696
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   697
  void zap_from_to(Register low, int before, Register high, int after, Register val, Register addr) PRODUCT_RETURN;
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   698
};
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   699
23221
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   700
// class SkipIfEqualZero:
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   701
//
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   702
// Instantiating this class will result in assembly code being output that will
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   703
// jump around any code emitted between the creation of the instance and it's
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   704
// automatic destruction at the end of a scope block, depending on the value of
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   705
// the flag passed to the constructor, which will be checked at run-time.
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   706
class SkipIfEqualZero : public StackObj {
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   707
 private:
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   708
  MacroAssembler* _masm;
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   709
  Label _label;
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   710
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   711
 public:
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   712
   // 'Temp' is a temp register that this object can use (and trash).
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   713
   explicit SkipIfEqualZero(MacroAssembler*, Register temp, const bool* flag_addr);
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   714
   ~SkipIfEqualZero();
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   715
};
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   716
22824
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   717
#endif // CPU_PPC_VM_MACROASSEMBLER_PPC_HPP