hotspot/src/cpu/sparc/vm/c1_FrameMap_sparc.cpp
author mikael
Tue, 09 Oct 2012 10:09:34 -0700
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7197424: update copyright year to match last edit in jdk8 hotspot repository Summary: Update copyright year to 2012 for relevant files Reviewed-by: dholmes, coleenp
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/*
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 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. 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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#include "precompiled.hpp"
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#include "c1/c1_FrameMap.hpp"
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#include "c1/c1_LIR.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "vmreg_sparc.inline.hpp"
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const int FrameMap::pd_c_runtime_reserved_arg_size = 7;
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LIR_Opr FrameMap::map_to_opr(BasicType type, VMRegPair* reg, bool outgoing) {
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  LIR_Opr opr = LIR_OprFact::illegalOpr;
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  VMReg r_1 = reg->first();
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  VMReg r_2 = reg->second();
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  if (r_1->is_stack()) {
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    // Convert stack slot to an SP offset
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    // The calling convention does not count the SharedRuntime::out_preserve_stack_slots() value
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    // so we must add it in here.
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    int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size;
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    opr = LIR_OprFact::address(new LIR_Address(SP_opr, st_off + STACK_BIAS, type));
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  } else if (r_1->is_Register()) {
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    Register reg = r_1->as_Register();
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    if (outgoing) {
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      assert(!reg->is_in(), "should be using I regs");
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    } else {
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      assert(!reg->is_out(), "should be using O regs");
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    }
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    if (r_2->is_Register() && (type == T_LONG || type == T_DOUBLE)) {
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      opr = as_long_opr(reg);
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    } else if (type == T_OBJECT || type == T_ARRAY) {
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      opr = as_oop_opr(reg);
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    } else {
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      opr = as_opr(reg);
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    }
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  } else if (r_1->is_FloatRegister()) {
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    assert(type == T_DOUBLE || type == T_FLOAT, "wrong type");
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    FloatRegister f = r_1->as_FloatRegister();
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    if (type == T_DOUBLE) {
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      opr = as_double_opr(f);
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    } else {
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      opr = as_float_opr(f);
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    }
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  }
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  return opr;
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}
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//               FrameMap
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//--------------------------------------------------------
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FloatRegister FrameMap::_fpu_regs [FrameMap::nof_fpu_regs];
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// some useful constant RInfo's:
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LIR_Opr FrameMap::in_long_opr;
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LIR_Opr FrameMap::out_long_opr;
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LIR_Opr FrameMap::g1_long_single_opr;
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LIR_Opr FrameMap::F0_opr;
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LIR_Opr FrameMap::F0_double_opr;
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LIR_Opr FrameMap::G0_opr;
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LIR_Opr FrameMap::G1_opr;
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LIR_Opr FrameMap::G2_opr;
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LIR_Opr FrameMap::G3_opr;
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LIR_Opr FrameMap::G4_opr;
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LIR_Opr FrameMap::G5_opr;
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LIR_Opr FrameMap::G6_opr;
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LIR_Opr FrameMap::G7_opr;
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LIR_Opr FrameMap::O0_opr;
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LIR_Opr FrameMap::O1_opr;
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LIR_Opr FrameMap::O2_opr;
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LIR_Opr FrameMap::O3_opr;
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LIR_Opr FrameMap::O4_opr;
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LIR_Opr FrameMap::O5_opr;
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LIR_Opr FrameMap::O6_opr;
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LIR_Opr FrameMap::O7_opr;
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LIR_Opr FrameMap::L0_opr;
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LIR_Opr FrameMap::L1_opr;
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LIR_Opr FrameMap::L2_opr;
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LIR_Opr FrameMap::L3_opr;
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LIR_Opr FrameMap::L4_opr;
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LIR_Opr FrameMap::L5_opr;
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LIR_Opr FrameMap::L6_opr;
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LIR_Opr FrameMap::L7_opr;
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LIR_Opr FrameMap::I0_opr;
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LIR_Opr FrameMap::I1_opr;
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LIR_Opr FrameMap::I2_opr;
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LIR_Opr FrameMap::I3_opr;
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LIR_Opr FrameMap::I4_opr;
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LIR_Opr FrameMap::I5_opr;
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LIR_Opr FrameMap::I6_opr;
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LIR_Opr FrameMap::I7_opr;
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LIR_Opr FrameMap::G0_oop_opr;
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LIR_Opr FrameMap::G1_oop_opr;
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LIR_Opr FrameMap::G2_oop_opr;
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LIR_Opr FrameMap::G3_oop_opr;
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LIR_Opr FrameMap::G4_oop_opr;
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LIR_Opr FrameMap::G5_oop_opr;
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LIR_Opr FrameMap::G6_oop_opr;
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LIR_Opr FrameMap::G7_oop_opr;
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LIR_Opr FrameMap::O0_oop_opr;
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LIR_Opr FrameMap::O1_oop_opr;
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LIR_Opr FrameMap::O2_oop_opr;
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LIR_Opr FrameMap::O3_oop_opr;
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LIR_Opr FrameMap::O4_oop_opr;
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LIR_Opr FrameMap::O5_oop_opr;
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LIR_Opr FrameMap::O6_oop_opr;
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LIR_Opr FrameMap::O7_oop_opr;
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LIR_Opr FrameMap::L0_oop_opr;
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LIR_Opr FrameMap::L1_oop_opr;
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LIR_Opr FrameMap::L2_oop_opr;
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LIR_Opr FrameMap::L3_oop_opr;
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LIR_Opr FrameMap::L4_oop_opr;
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LIR_Opr FrameMap::L5_oop_opr;
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LIR_Opr FrameMap::L6_oop_opr;
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LIR_Opr FrameMap::L7_oop_opr;
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LIR_Opr FrameMap::I0_oop_opr;
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LIR_Opr FrameMap::I1_oop_opr;
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LIR_Opr FrameMap::I2_oop_opr;
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LIR_Opr FrameMap::I3_oop_opr;
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LIR_Opr FrameMap::I4_oop_opr;
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LIR_Opr FrameMap::I5_oop_opr;
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LIR_Opr FrameMap::I6_oop_opr;
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LIR_Opr FrameMap::I7_oop_opr;
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LIR_Opr FrameMap::G0_metadata_opr;
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LIR_Opr FrameMap::G1_metadata_opr;
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LIR_Opr FrameMap::G2_metadata_opr;
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LIR_Opr FrameMap::G3_metadata_opr;
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LIR_Opr FrameMap::G4_metadata_opr;
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LIR_Opr FrameMap::G5_metadata_opr;
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LIR_Opr FrameMap::G6_metadata_opr;
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LIR_Opr FrameMap::G7_metadata_opr;
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LIR_Opr FrameMap::O0_metadata_opr;
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LIR_Opr FrameMap::O1_metadata_opr;
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LIR_Opr FrameMap::O2_metadata_opr;
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LIR_Opr FrameMap::O3_metadata_opr;
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LIR_Opr FrameMap::O4_metadata_opr;
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LIR_Opr FrameMap::O5_metadata_opr;
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LIR_Opr FrameMap::O6_metadata_opr;
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LIR_Opr FrameMap::O7_metadata_opr;
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LIR_Opr FrameMap::L0_metadata_opr;
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LIR_Opr FrameMap::L1_metadata_opr;
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LIR_Opr FrameMap::L2_metadata_opr;
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LIR_Opr FrameMap::L3_metadata_opr;
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LIR_Opr FrameMap::L4_metadata_opr;
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LIR_Opr FrameMap::L5_metadata_opr;
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LIR_Opr FrameMap::L6_metadata_opr;
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LIR_Opr FrameMap::L7_metadata_opr;
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LIR_Opr FrameMap::I0_metadata_opr;
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LIR_Opr FrameMap::I1_metadata_opr;
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LIR_Opr FrameMap::I2_metadata_opr;
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LIR_Opr FrameMap::I3_metadata_opr;
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LIR_Opr FrameMap::I4_metadata_opr;
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LIR_Opr FrameMap::I5_metadata_opr;
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LIR_Opr FrameMap::I6_metadata_opr;
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LIR_Opr FrameMap::I7_metadata_opr;
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LIR_Opr FrameMap::SP_opr;
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LIR_Opr FrameMap::FP_opr;
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LIR_Opr FrameMap::Oexception_opr;
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LIR_Opr FrameMap::Oissuing_pc_opr;
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LIR_Opr FrameMap::_caller_save_cpu_regs[] = { 0, };
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LIR_Opr FrameMap::_caller_save_fpu_regs[] = { 0, };
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FloatRegister FrameMap::nr2floatreg (int rnr) {
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  assert(_init_done, "tables not initialized");
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  debug_only(fpu_range_check(rnr);)
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  return _fpu_regs[rnr];
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}
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// returns true if reg could be smashed by a callee.
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bool FrameMap::is_caller_save_register (LIR_Opr reg) {
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  if (reg->is_single_fpu() || reg->is_double_fpu()) { return true; }
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  if (reg->is_double_cpu()) {
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    return is_caller_save_register(reg->as_register_lo()) ||
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           is_caller_save_register(reg->as_register_hi());
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  }
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  return is_caller_save_register(reg->as_register());
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}
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NEEDS_CLEANUP   // once the new calling convention is enabled, we no
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                // longer need to treat I5, I4 and L0 specially
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// Because the interpreter destroys caller's I5, I4 and L0,
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// we must spill them before doing a Java call as we may land in
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// interpreter.
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bool FrameMap::is_caller_save_register (Register r) {
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  return (r->is_global() && (r != G0)) || r->is_out();
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}
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void FrameMap::initialize() {
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  assert(!_init_done, "once");
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  int i=0;
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  // Register usage:
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  //  O6: sp
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  //  I6: fp
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  //  I7: return address
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  //  G0: zero
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  //  G2: thread
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  //  G7: not available
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  //  G6: not available
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  /*  0 */ map_register(i++, L0);
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  /*  1 */ map_register(i++, L1);
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  /*  2 */ map_register(i++, L2);
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  /*  3 */ map_register(i++, L3);
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  /*  4 */ map_register(i++, L4);
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  /*  5 */ map_register(i++, L5);
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  /*  6 */ map_register(i++, L6);
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  /*  7 */ map_register(i++, L7);
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  /*  8 */ map_register(i++, I0);
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  /*  9 */ map_register(i++, I1);
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  /* 10 */ map_register(i++, I2);
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  /* 11 */ map_register(i++, I3);
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  /* 12 */ map_register(i++, I4);
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  /* 13 */ map_register(i++, I5);
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  /* 14 */ map_register(i++, O0);
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  /* 15 */ map_register(i++, O1);
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  /* 16 */ map_register(i++, O2);
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  /* 17 */ map_register(i++, O3);
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  /* 18 */ map_register(i++, O4);
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  /* 19 */ map_register(i++, O5); // <- last register visible in RegAlloc (RegAlloc::nof+cpu_regs)
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  /* 20 */ map_register(i++, G1);
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  /* 21 */ map_register(i++, G3);
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  /* 22 */ map_register(i++, G4);
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  /* 23 */ map_register(i++, G5);
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  /* 24 */ map_register(i++, G0);
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  // the following registers are not normally available
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  /* 25 */ map_register(i++, O7);
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  /* 26 */ map_register(i++, G2);
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  /* 27 */ map_register(i++, O6);
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  /* 28 */ map_register(i++, I6);
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  /* 29 */ map_register(i++, I7);
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  /* 30 */ map_register(i++, G6);
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  /* 31 */ map_register(i++, G7);
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  assert(i == nof_cpu_regs, "number of CPU registers");
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  for (i = 0; i < nof_fpu_regs; i++) {
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    _fpu_regs[i] = as_FloatRegister(i);
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  }
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  _init_done = true;
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  in_long_opr    = as_long_opr(I0);
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  out_long_opr   = as_long_opr(O0);
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  g1_long_single_opr    = as_long_single_opr(G1);
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  G0_opr = as_opr(G0);
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  G1_opr = as_opr(G1);
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  G2_opr = as_opr(G2);
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  G3_opr = as_opr(G3);
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  G4_opr = as_opr(G4);
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  G5_opr = as_opr(G5);
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  G6_opr = as_opr(G6);
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  G7_opr = as_opr(G7);
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  O0_opr = as_opr(O0);
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  O1_opr = as_opr(O1);
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  O2_opr = as_opr(O2);
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  O3_opr = as_opr(O3);
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  O4_opr = as_opr(O4);
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  O5_opr = as_opr(O5);
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  O6_opr = as_opr(O6);
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  O7_opr = as_opr(O7);
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  L0_opr = as_opr(L0);
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  L1_opr = as_opr(L1);
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  L2_opr = as_opr(L2);
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  L3_opr = as_opr(L3);
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  L4_opr = as_opr(L4);
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  L5_opr = as_opr(L5);
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  L6_opr = as_opr(L6);
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  L7_opr = as_opr(L7);
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  I0_opr = as_opr(I0);
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  I1_opr = as_opr(I1);
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  I2_opr = as_opr(I2);
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  I3_opr = as_opr(I3);
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  I4_opr = as_opr(I4);
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  I5_opr = as_opr(I5);
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  I6_opr = as_opr(I6);
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  I7_opr = as_opr(I7);
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  G0_oop_opr = as_oop_opr(G0);
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  G1_oop_opr = as_oop_opr(G1);
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  G2_oop_opr = as_oop_opr(G2);
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  G3_oop_opr = as_oop_opr(G3);
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  G4_oop_opr = as_oop_opr(G4);
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  G5_oop_opr = as_oop_opr(G5);
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  G6_oop_opr = as_oop_opr(G6);
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  G7_oop_opr = as_oop_opr(G7);
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  O0_oop_opr = as_oop_opr(O0);
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  O1_oop_opr = as_oop_opr(O1);
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  O2_oop_opr = as_oop_opr(O2);
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  O3_oop_opr = as_oop_opr(O3);
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  O4_oop_opr = as_oop_opr(O4);
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  O5_oop_opr = as_oop_opr(O5);
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  O6_oop_opr = as_oop_opr(O6);
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  O7_oop_opr = as_oop_opr(O7);
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  L0_oop_opr = as_oop_opr(L0);
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  L1_oop_opr = as_oop_opr(L1);
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  L2_oop_opr = as_oop_opr(L2);
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  L3_oop_opr = as_oop_opr(L3);
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  L4_oop_opr = as_oop_opr(L4);
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  L5_oop_opr = as_oop_opr(L5);
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  L6_oop_opr = as_oop_opr(L6);
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  L7_oop_opr = as_oop_opr(L7);
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  I0_oop_opr = as_oop_opr(I0);
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  I1_oop_opr = as_oop_opr(I1);
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  I2_oop_opr = as_oop_opr(I2);
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  I3_oop_opr = as_oop_opr(I3);
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  I4_oop_opr = as_oop_opr(I4);
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  I5_oop_opr = as_oop_opr(I5);
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  I6_oop_opr = as_oop_opr(I6);
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  I7_oop_opr = as_oop_opr(I7);
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  G0_metadata_opr = as_metadata_opr(G0);
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  G1_metadata_opr = as_metadata_opr(G1);
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diff changeset
   348
  G2_metadata_opr = as_metadata_opr(G2);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   349
  G3_metadata_opr = as_metadata_opr(G3);
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diff changeset
   350
  G4_metadata_opr = as_metadata_opr(G4);
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diff changeset
   351
  G5_metadata_opr = as_metadata_opr(G5);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   352
  G6_metadata_opr = as_metadata_opr(G6);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   353
  G7_metadata_opr = as_metadata_opr(G7);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   354
  O0_metadata_opr = as_metadata_opr(O0);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   355
  O1_metadata_opr = as_metadata_opr(O1);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   356
  O2_metadata_opr = as_metadata_opr(O2);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   357
  O3_metadata_opr = as_metadata_opr(O3);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   358
  O4_metadata_opr = as_metadata_opr(O4);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   359
  O5_metadata_opr = as_metadata_opr(O5);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   360
  O6_metadata_opr = as_metadata_opr(O6);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   361
  O7_metadata_opr = as_metadata_opr(O7);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   362
  L0_metadata_opr = as_metadata_opr(L0);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   363
  L1_metadata_opr = as_metadata_opr(L1);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   364
  L2_metadata_opr = as_metadata_opr(L2);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   365
  L3_metadata_opr = as_metadata_opr(L3);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   366
  L4_metadata_opr = as_metadata_opr(L4);
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diff changeset
   367
  L5_metadata_opr = as_metadata_opr(L5);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   368
  L6_metadata_opr = as_metadata_opr(L6);
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diff changeset
   369
  L7_metadata_opr = as_metadata_opr(L7);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   370
  I0_metadata_opr = as_metadata_opr(I0);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   371
  I1_metadata_opr = as_metadata_opr(I1);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   372
  I2_metadata_opr = as_metadata_opr(I2);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   373
  I3_metadata_opr = as_metadata_opr(I3);
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diff changeset
   374
  I4_metadata_opr = as_metadata_opr(I4);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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   375
  I5_metadata_opr = as_metadata_opr(I5);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   376
  I6_metadata_opr = as_metadata_opr(I6);
9180987e305d 7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
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diff changeset
   377
  I7_metadata_opr = as_metadata_opr(I7);
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diff changeset
   378
1
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   379
  FP_opr = as_pointer_opr(FP);
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   380
  SP_opr = as_pointer_opr(SP);
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   381
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   382
  F0_opr = as_float_opr(F0);
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   383
  F0_double_opr = as_double_opr(F0);
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diff changeset
   384
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   385
  Oexception_opr = as_oop_opr(Oexception);
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diff changeset
   386
  Oissuing_pc_opr = as_opr(Oissuing_pc);
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parents:
diff changeset
   387
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   388
  _caller_save_cpu_regs[0] = FrameMap::O0_opr;
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diff changeset
   389
  _caller_save_cpu_regs[1] = FrameMap::O1_opr;
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parents:
diff changeset
   390
  _caller_save_cpu_regs[2] = FrameMap::O2_opr;
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parents:
diff changeset
   391
  _caller_save_cpu_regs[3] = FrameMap::O3_opr;
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parents:
diff changeset
   392
  _caller_save_cpu_regs[4] = FrameMap::O4_opr;
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diff changeset
   393
  _caller_save_cpu_regs[5] = FrameMap::O5_opr;
3683
bbf665be687c 6795465: Crash in assembler_sparc.cpp with client compiler on solaris-sparc
never
parents: 2571
diff changeset
   394
  _caller_save_cpu_regs[6] = FrameMap::G1_opr;
bbf665be687c 6795465: Crash in assembler_sparc.cpp with client compiler on solaris-sparc
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parents: 2571
diff changeset
   395
  _caller_save_cpu_regs[7] = FrameMap::G3_opr;
bbf665be687c 6795465: Crash in assembler_sparc.cpp with client compiler on solaris-sparc
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parents: 2571
diff changeset
   396
  _caller_save_cpu_regs[8] = FrameMap::G4_opr;
bbf665be687c 6795465: Crash in assembler_sparc.cpp with client compiler on solaris-sparc
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parents: 2571
diff changeset
   397
  _caller_save_cpu_regs[9] = FrameMap::G5_opr;
1
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parents:
diff changeset
   398
  for (int i = 0; i < nof_caller_save_fpu_regs; i++) {
489c9b5090e2 Initial load
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parents:
diff changeset
   399
    _caller_save_fpu_regs[i] = LIR_OprFact::single_fpu(i);
489c9b5090e2 Initial load
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parents:
diff changeset
   400
  }
489c9b5090e2 Initial load
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parents:
diff changeset
   401
}
489c9b5090e2 Initial load
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parents:
diff changeset
   402
489c9b5090e2 Initial load
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parents:
diff changeset
   403
489c9b5090e2 Initial load
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parents:
diff changeset
   404
Address FrameMap::make_new_address(ByteSize sp_offset) const {
2571
d602ad6538bd 6822110: Add AddressLiteral class on SPARC
twisti
parents: 1
diff changeset
   405
  return Address(SP, STACK_BIAS + in_bytes(sp_offset));
1
489c9b5090e2 Initial load
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parents:
diff changeset
   406
}
489c9b5090e2 Initial load
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parents:
diff changeset
   407
489c9b5090e2 Initial load
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parents:
diff changeset
   408
489c9b5090e2 Initial load
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parents:
diff changeset
   409
VMReg FrameMap::fpu_regname (int n) {
489c9b5090e2 Initial load
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parents:
diff changeset
   410
  return as_FloatRegister(n)->as_VMReg();
489c9b5090e2 Initial load
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parents:
diff changeset
   411
}
489c9b5090e2 Initial load
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parents:
diff changeset
   412
489c9b5090e2 Initial load
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parents:
diff changeset
   413
489c9b5090e2 Initial load
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parents:
diff changeset
   414
LIR_Opr FrameMap::stack_pointer() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
  return SP_opr;
489c9b5090e2 Initial load
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parents:
diff changeset
   416
}
489c9b5090e2 Initial load
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parents:
diff changeset
   417
489c9b5090e2 Initial load
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parents:
diff changeset
   418
5687
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 3683
diff changeset
   419
// JSR 292
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 3683
diff changeset
   420
LIR_Opr FrameMap::method_handle_invoke_SP_save_opr() {
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 3683
diff changeset
   421
  assert(L7 == L7_mh_SP_save, "must be same register");
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 3683
diff changeset
   422
  return L7_opr;
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 3683
diff changeset
   423
}
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 3683
diff changeset
   424
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 3683
diff changeset
   425
1
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parents:
diff changeset
   426
bool FrameMap::validate_frame() {
489c9b5090e2 Initial load
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parents:
diff changeset
   427
  int max_offset = in_bytes(framesize_in_bytes());
489c9b5090e2 Initial load
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parents:
diff changeset
   428
  int java_index = 0;
489c9b5090e2 Initial load
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parents:
diff changeset
   429
  for (int i = 0; i < _incoming_arguments->length(); i++) {
489c9b5090e2 Initial load
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parents:
diff changeset
   430
    LIR_Opr opr = _incoming_arguments->at(i);
489c9b5090e2 Initial load
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parents:
diff changeset
   431
    if (opr->is_stack()) {
489c9b5090e2 Initial load
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parents:
diff changeset
   432
      max_offset = MAX2(_argument_locations->at(java_index), max_offset);
489c9b5090e2 Initial load
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parents:
diff changeset
   433
    }
489c9b5090e2 Initial load
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parents:
diff changeset
   434
    java_index += type2size[opr->type()];
489c9b5090e2 Initial load
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parents:
diff changeset
   435
  }
489c9b5090e2 Initial load
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parents:
diff changeset
   436
  return Assembler::is_simm13(max_offset + STACK_BIAS);
489c9b5090e2 Initial load
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parents:
diff changeset
   437
}