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1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
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2 * vim: set ts=8 sts=4 et sw=4 tw=99: |
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3 * This Source Code Form is subject to the terms of the Mozilla Public |
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4 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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6 |
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7 #ifndef jit_arm_MoveEmitter_arm_h |
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8 #define jit_arm_MoveEmitter_arm_h |
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9 |
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10 #include "jit/IonMacroAssembler.h" |
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11 #include "jit/MoveResolver.h" |
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12 |
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13 namespace js { |
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14 namespace jit { |
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15 |
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16 class CodeGenerator; |
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17 |
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18 class MoveEmitterARM |
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19 { |
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20 bool inCycle_; |
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21 MacroAssemblerARMCompat &masm; |
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22 |
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23 // Original stack push value. |
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24 uint32_t pushedAtStart_; |
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25 |
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26 // These store stack offsets to spill locations, snapshotting |
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27 // codegen->framePushed_ at the time they were allocated. They are -1 if no |
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28 // stack space has been allocated for that particular spill. |
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29 int32_t pushedAtCycle_; |
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30 int32_t pushedAtSpill_; |
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31 |
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32 // These are registers that are available for temporary use. They may be |
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33 // assigned InvalidReg. If no corresponding spill space has been assigned, |
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34 // then these registers do not need to be spilled. |
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35 Register spilledReg_; |
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36 FloatRegister spilledFloatReg_; |
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37 |
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38 void assertDone(); |
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39 Register tempReg(); |
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40 FloatRegister tempFloatReg(); |
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41 Operand cycleSlot() const; |
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42 Operand spillSlot() const; |
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43 Operand toOperand(const MoveOperand &operand, bool isFloat) const; |
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44 |
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45 void emitMove(const MoveOperand &from, const MoveOperand &to); |
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46 void emitFloat32Move(const MoveOperand &from, const MoveOperand &to); |
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47 void emitDoubleMove(const MoveOperand &from, const MoveOperand &to); |
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48 void breakCycle(const MoveOperand &from, const MoveOperand &to, MoveOp::Type type); |
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49 void completeCycle(const MoveOperand &from, const MoveOperand &to, MoveOp::Type type); |
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50 void emit(const MoveOp &move); |
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51 |
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52 public: |
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53 MoveEmitterARM(MacroAssemblerARMCompat &masm); |
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54 ~MoveEmitterARM(); |
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55 void emit(const MoveResolver &moves); |
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56 void finish(); |
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57 }; |
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58 |
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59 typedef MoveEmitterARM MoveEmitter; |
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60 |
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61 } // namespace jit |
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62 } // namespace js |
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63 |
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64 #endif /* jit_arm_MoveEmitter_arm_h */ |