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comparison: js/src/jit/mips/Lowering-mips.h
js/src/jit/mips/Lowering-mips.h
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| -1:000000000000 | 0:1b0e39789175 |
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| 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/. */ | |
| 6 | |
| 7 #ifndef jit_mips_Lowering_mips_h | |
| 8 #define jit_mips_Lowering_mips_h | |
| 9 | |
| 10 #include "jit/shared/Lowering-shared.h" | |
| 11 | |
| 12 namespace js { | |
| 13 namespace jit { | |
| 14 | |
| 15 class LIRGeneratorMIPS : public LIRGeneratorShared | |
| 16 { | |
| 17 protected: | |
| 18 LIRGeneratorMIPS(MIRGenerator *gen, MIRGraph &graph, LIRGraph &lirGraph) | |
| 19 : LIRGeneratorShared(gen, graph, lirGraph) | |
| 20 { } | |
| 21 | |
| 22 protected: | |
| 23 // Adds a box input to an instruction, setting operand |n| to the type and | |
| 24 // |n+1| to the payload. | |
| 25 bool useBox(LInstruction *lir, size_t n, MDefinition *mir, | |
| 26 LUse::Policy policy = LUse::REGISTER, bool useAtStart = false); | |
| 27 bool useBoxFixed(LInstruction *lir, size_t n, MDefinition *mir, Register reg1, Register reg2); | |
| 28 | |
| 29 // x86 has constraints on what registers can be formatted for 1-byte | |
| 30 // stores and loads; on MIPS all registers are okay. | |
| 31 LAllocation useByteOpRegister(MDefinition *mir); | |
| 32 LAllocation useByteOpRegisterOrNonDoubleConstant(MDefinition *mir); | |
| 33 | |
| 34 inline LDefinition tempToUnbox() { | |
| 35 return LDefinition::BogusTemp(); | |
| 36 } | |
| 37 | |
| 38 // MIPS has a scratch register, so no need for another temp for dispatch | |
| 39 // ICs. | |
| 40 LDefinition tempForDispatchCache(MIRType outputType = MIRType_None) { | |
| 41 return LDefinition::BogusTemp(); | |
| 42 } | |
| 43 | |
| 44 void lowerUntypedPhiInput(MPhi *phi, uint32_t inputPosition, LBlock *block, size_t lirIndex); | |
| 45 bool defineUntypedPhi(MPhi *phi, size_t lirIndex); | |
| 46 bool lowerForShift(LInstructionHelper<1, 2, 0> *ins, MDefinition *mir, MDefinition *lhs, | |
| 47 MDefinition *rhs); | |
| 48 bool lowerUrshD(MUrsh *mir); | |
| 49 | |
| 50 bool lowerForALU(LInstructionHelper<1, 1, 0> *ins, MDefinition *mir, | |
| 51 MDefinition *input); | |
| 52 bool lowerForALU(LInstructionHelper<1, 2, 0> *ins, MDefinition *mir, | |
| 53 MDefinition *lhs, MDefinition *rhs); | |
| 54 | |
| 55 bool lowerForFPU(LInstructionHelper<1, 1, 0> *ins, MDefinition *mir, | |
| 56 MDefinition *src); | |
| 57 bool lowerForFPU(LInstructionHelper<1, 2, 0> *ins, MDefinition *mir, | |
| 58 MDefinition *lhs, MDefinition *rhs); | |
| 59 bool lowerForBitAndAndBranch(LBitAndAndBranch *baab, MInstruction *mir, | |
| 60 MDefinition *lhs, MDefinition *rhs); | |
| 61 bool lowerConstantDouble(double d, MInstruction *ins); | |
| 62 bool lowerConstantFloat32(float d, MInstruction *ins); | |
| 63 bool lowerTruncateDToInt32(MTruncateToInt32 *ins); | |
| 64 bool lowerTruncateFToInt32(MTruncateToInt32 *ins); | |
| 65 bool lowerDivI(MDiv *div); | |
| 66 bool lowerModI(MMod *mod); | |
| 67 bool lowerMulI(MMul *mul, MDefinition *lhs, MDefinition *rhs); | |
| 68 bool lowerUDiv(MDiv *div); | |
| 69 bool lowerUMod(MMod *mod); | |
| 70 bool visitPowHalf(MPowHalf *ins); | |
| 71 bool visitAsmJSNeg(MAsmJSNeg *ins); | |
| 72 | |
| 73 LTableSwitch *newLTableSwitch(const LAllocation &in, const LDefinition &inputCopy, | |
| 74 MTableSwitch *ins); | |
| 75 LTableSwitchV *newLTableSwitchV(MTableSwitch *ins); | |
| 76 | |
| 77 public: | |
| 78 bool visitConstant(MConstant *ins); | |
| 79 bool visitBox(MBox *box); | |
| 80 bool visitUnbox(MUnbox *unbox); | |
| 81 bool visitReturn(MReturn *ret); | |
| 82 bool lowerPhi(MPhi *phi); | |
| 83 bool visitGuardShape(MGuardShape *ins); | |
| 84 bool visitGuardObjectType(MGuardObjectType *ins); | |
| 85 bool visitAsmJSUnsignedToDouble(MAsmJSUnsignedToDouble *ins); | |
| 86 bool visitAsmJSUnsignedToFloat32(MAsmJSUnsignedToFloat32 *ins); | |
| 87 bool visitAsmJSLoadHeap(MAsmJSLoadHeap *ins); | |
| 88 bool visitAsmJSStoreHeap(MAsmJSStoreHeap *ins); | |
| 89 bool visitAsmJSLoadFuncPtr(MAsmJSLoadFuncPtr *ins); | |
| 90 bool visitStoreTypedArrayElementStatic(MStoreTypedArrayElementStatic *ins); | |
| 91 bool visitForkJoinGetSlice(MForkJoinGetSlice *ins); | |
| 92 | |
| 93 static bool allowFloat32Optimizations() { | |
| 94 return true; | |
| 95 } | |
| 96 }; | |
| 97 | |
| 98 typedef LIRGeneratorMIPS LIRGeneratorSpecific; | |
| 99 | |
| 100 } // namespace jit | |
| 101 } // namespace js | |
| 102 | |
| 103 #endif /* jit_mips_Lowering_mips_h */ |
