/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- * vim: set ts=8 sts=4 et sw=4 tw=99: * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef jit_mips_shared_MacroAssembler_mips_shared_h #define jit_mips_shared_MacroAssembler_mips_shared_h #if defined(JS_CODEGEN_MIPS32) # include "jit/mips32/Assembler-mips32.h" #elif defined(JS_CODEGEN_MIPS64) # include "jit/mips64/Assembler-mips64.h" #endif #include "jit/AtomicOp.h" namespace js { namespace jit { enum LoadStoreSize { SizeByte = 8, SizeHalfWord = 16, SizeWord = 32, SizeDouble = 64 }; enum LoadStoreExtension { ZeroExtend = 0, SignExtend = 1 }; enum JumpKind { MixedJump = 0, ShortJump = 1 }; enum DelaySlotFill { DontFillDelaySlot = 0, FillDelaySlot = 1 }; static Register CallReg = t9; class MacroAssemblerMIPSShared : public Assembler { protected: // Perform a downcast. Should be removed by Bug 996602. MacroAssembler& asMasm(); const MacroAssembler& asMasm() const; Condition ma_cmp(Register rd, Register lhs, Register rhs, Condition c); Condition ma_cmp(Register rd, Register lhs, Imm32 imm, Condition c); void compareFloatingPoint(FloatFormat fmt, FloatRegister lhs, FloatRegister rhs, DoubleCondition c, FloatTestKind* testKind, FPConditionBit fcc = FCC0); void GenerateMixedJumps(); public: void ma_move(Register rd, Register rs); void ma_li(Register dest, ImmGCPtr ptr); void ma_li(Register dest, Imm32 imm); void ma_liPatchable(Register dest, Imm32 imm); // Shift operations void ma_sll(Register rd, Register rt, Imm32 shift); void ma_srl(Register rd, Register rt, Imm32 shift); void ma_sra(Register rd, Register rt, Imm32 shift); void ma_ror(Register rd, Register rt, Imm32 shift); void ma_rol(Register rd, Register rt, Imm32 shift); void ma_sll(Register rd, Register rt, Register shift); void ma_srl(Register rd, Register rt, Register shift); void ma_sra(Register rd, Register rt, Register shift); void ma_ror(Register rd, Register rt, Register shift); void ma_rol(Register rd, Register rt, Register shift); // Negate void ma_negu(Register rd, Register rs); void ma_not(Register rd, Register rs); // and void ma_and(Register rd, Register rs); void ma_and(Register rd, Imm32 imm); void ma_and(Register rd, Register rs, Imm32 imm); // or void ma_or(Register rd, Register rs); void ma_or(Register rd, Imm32 imm); void ma_or(Register rd, Register rs, Imm32 imm); // xor void ma_xor(Register rd, Register rs); void ma_xor(Register rd, Imm32 imm); void ma_xor(Register rd, Register rs, Imm32 imm); void ma_ctz(Register rd, Register rs); // load void ma_load(Register dest, const BaseIndex& src, LoadStoreSize size = SizeWord, LoadStoreExtension extension = SignExtend); void ma_load_unaligned(const wasm::MemoryAccessDesc& access, Register dest, const BaseIndex& src, Register temp, LoadStoreSize size, LoadStoreExtension extension); // store void ma_store(Register data, const BaseIndex& dest, LoadStoreSize size = SizeWord, LoadStoreExtension extension = SignExtend); void ma_store(Imm32 imm, const BaseIndex& dest, LoadStoreSize size = SizeWord, LoadStoreExtension extension = SignExtend); void ma_store_unaligned(const wasm::MemoryAccessDesc& access, Register data, const BaseIndex& dest, Register temp, LoadStoreSize size, LoadStoreExtension extension); // arithmetic based ops // add void ma_addu(Register rd, Register rs, Imm32 imm); void ma_addu(Register rd, Register rs); void ma_addu(Register rd, Imm32 imm); template void ma_addTestCarry(Register rd, Register rs, Register rt, L overflow); template void ma_addTestCarry(Register rd, Register rs, Imm32 imm, L overflow); // subtract void ma_subu(Register rd, Register rs, Imm32 imm); void ma_subu(Register rd, Register rs); void ma_subu(Register rd, Imm32 imm); void ma_subTestOverflow(Register rd, Register rs, Imm32 imm, Label* overflow); // multiplies. For now, there are only few that we care about. void ma_mul(Register rd, Register rs, Imm32 imm); void ma_mul_branch_overflow(Register rd, Register rs, Register rt, Label* overflow); void ma_mul_branch_overflow(Register rd, Register rs, Imm32 imm, Label* overflow); // divisions void ma_div_branch_overflow(Register rd, Register rs, Register rt, Label* overflow); void ma_div_branch_overflow(Register rd, Register rs, Imm32 imm, Label* overflow); // fast mod, uses scratch registers, and thus needs to be in the assembler // implicitly assumes that we can overwrite dest at the beginning of the sequence void ma_mod_mask(Register src, Register dest, Register hold, Register remain, int32_t shift, Label* negZero = nullptr); void branchWithCode(InstImm code, Label* label, JumpKind jumpKind); // branches when done from within mips-specific code void ma_b(Register lhs, Register rhs, Label* l, Condition c, JumpKind jumpKind = MixedJump); void ma_b(Register lhs, Imm32 imm, Label* l, Condition c, JumpKind jumpKind = MixedJump); void ma_b(Register lhs, ImmPtr imm, Label* l, Condition c, JumpKind jumpKind = MixedJump); void ma_b(Register lhs, ImmGCPtr imm, Label* l, Condition c, JumpKind jumpKind = MixedJump) { MOZ_ASSERT(lhs != ScratchRegister); ma_li(ScratchRegister, imm); ma_b(lhs, ScratchRegister, l, c, jumpKind); } template void ma_b(Register lhs, T rhs, wasm::TrapDesc target, Condition c, JumpKind jumpKind = MixedJump); void ma_b(Label* l, JumpKind jumpKind = MixedJump); void ma_b(wasm::TrapDesc target, JumpKind jumpKind = MixedJump); void ma_jal(Label* l); // fp instructions void ma_lis(FloatRegister dest, float value); void ma_lis(FloatRegister dest, wasm::RawF32 value); void ma_liNegZero(FloatRegister dest); void ma_sd(FloatRegister fd, BaseIndex address); void ma_ss(FloatRegister fd, BaseIndex address); //FP branches void ma_bc1s(FloatRegister lhs, FloatRegister rhs, Label* label, DoubleCondition c, JumpKind jumpKind = MixedJump, FPConditionBit fcc = FCC0); void ma_bc1d(FloatRegister lhs, FloatRegister rhs, Label* label, DoubleCondition c, JumpKind jumpKind = MixedJump, FPConditionBit fcc = FCC0); void ma_call(ImmPtr dest); void ma_jump(ImmPtr dest); void ma_cmp_set(Register dst, Register lhs, Register rhs, Condition c); void ma_cmp_set(Register dst, Register lhs, Imm32 imm, Condition c); void ma_cmp_set_double(Register dst, FloatRegister lhs, FloatRegister rhs, DoubleCondition c); void ma_cmp_set_float32(Register dst, FloatRegister lhs, FloatRegister rhs, DoubleCondition c); BufferOffset ma_BoundsCheck(Register bounded) { BufferOffset bo = m_buffer.nextOffset(); ma_liPatchable(bounded, Imm32(0)); return bo; } void moveToDoubleLo(Register src, FloatRegister dest) { as_mtc1(src, dest); } void moveFromDoubleLo(FloatRegister src, Register dest) { as_mfc1(dest, src); } void moveToFloat32(Register src, FloatRegister dest) { as_mtc1(src, dest); } void moveFromFloat32(FloatRegister src, Register dest) { as_mfc1(dest, src); } // Evaluate srcDest = minmax{Float32,Double}(srcDest, other). // Handle NaN specially if handleNaN is true. void minMaxDouble(FloatRegister srcDest, FloatRegister other, bool handleNaN, bool isMax); void minMaxFloat32(FloatRegister srcDest, FloatRegister other, bool handleNaN, bool isMax); private: void atomicEffectOpMIPSr2(int nbytes, AtomicOp op, const Register& value, const Register& addr, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp); void atomicFetchOpMIPSr2(int nbytes, bool signExtend, AtomicOp op, const Register& value, const Register& addr, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void compareExchangeMIPSr2(int nbytes, bool signExtend, const Register& addr, Register oldval, Register newval, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); protected: void atomicEffectOp(int nbytes, AtomicOp op, const Imm32& value, const Address& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp); void atomicEffectOp(int nbytes, AtomicOp op, const Imm32& value, const BaseIndex& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp); void atomicEffectOp(int nbytes, AtomicOp op, const Register& value, const Address& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp); void atomicEffectOp(int nbytes, AtomicOp op, const Register& value, const BaseIndex& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp); void atomicFetchOp(int nbytes, bool signExtend, AtomicOp op, const Imm32& value, const Address& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void atomicFetchOp(int nbytes, bool signExtend, AtomicOp op, const Imm32& value, const BaseIndex& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void atomicFetchOp(int nbytes, bool signExtend, AtomicOp op, const Register& value, const Address& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void atomicFetchOp(int nbytes, bool signExtend, AtomicOp op, const Register& value, const BaseIndex& address, Register flagTemp, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void compareExchange(int nbytes, bool signExtend, const Address& address, Register oldval, Register newval, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void compareExchange(int nbytes, bool signExtend, const BaseIndex& address, Register oldval, Register newval, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void atomicExchange(int nbytes, bool signExtend, const Address& address, Register value, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); void atomicExchange(int nbytes, bool signExtend, const BaseIndex& address, Register value, Register valueTemp, Register offsetTemp, Register maskTemp, Register output); public: struct AutoPrepareForPatching { explicit AutoPrepareForPatching(MacroAssemblerMIPSShared&) {} }; }; } // namespace jit } // namespace js #endif /* jit_mips_shared_MacroAssembler_mips_shared_h */