The Tor Browser: js/src/jit/mips/MoveEmitter-mips.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  * vim: set ts=8 sts=4 et sw=4 tw=99:

     3  * This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef jit_mips_MoveEmitter_mips_h

     8 #define jit_mips_MoveEmitter_mips_h

    10 #include "jit/IonMacroAssembler.h"

    11 #include "jit/MoveResolver.h"

    13 namespace js {

    14 namespace jit {

    16 class CodeGenerator;

    18 class MoveEmitterMIPS

    19 {

    20     bool inCycle_;

    21     MacroAssemblerMIPSCompat &masm;

    23     // Original stack push value.

    24     uint32_t pushedAtStart_;

    26     // These store stack offsets to spill locations, snapshotting

    27     // codegen->framePushed_ at the time they were allocated. They are -1 if no

    28     // stack space has been allocated for that particular spill.

    29     int32_t pushedAtCycle_;

    30     int32_t pushedAtSpill_;

    32     // These are registers that are available for temporary use. They may be

    33     // assigned InvalidReg. If no corresponding spill space has been assigned,

    34     // then these registers do not need to be spilled.

    35     Register spilledReg_;

    36     FloatRegister spilledFloatReg_;

    38     void assertDone();

    39     Register tempReg();

    40     FloatRegister tempFloatReg();

    41     Address cycleSlot() const;

    42     int32_t getAdjustedOffset(const MoveOperand &operand);

    43     Address getAdjustedAddress(const MoveOperand &operand);

    45     void emitMove(const MoveOperand &from, const MoveOperand &to);

    46     void emitFloat32Move(const MoveOperand &from, const MoveOperand &to);

    47     void emitDoubleMove(const MoveOperand &from, const MoveOperand &to);

    48     void breakCycle(const MoveOperand &from, const MoveOperand &to, MoveOp::Type type);

    49     void completeCycle(const MoveOperand &from, const MoveOperand &to, MoveOp::Type type);

    50     void emit(const MoveOp &move);

    52   public:

    53     MoveEmitterMIPS(MacroAssemblerMIPSCompat &masm);

    54     ~MoveEmitterMIPS();

    55     void emit(const MoveResolver &moves);

    56     void finish();

    57 };

    59 typedef MoveEmitterMIPS MoveEmitter;

    61 } // namespace jit

    62 } // namespace js

    64 #endif /* jit_mips_MoveEmitter_mips_h */

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