/* * Copyright (C) 2015 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "intrinsics_mips64.h" #include "arch/mips64/instruction_set_features_mips64.h" #include "art_method.h" #include "code_generator_mips64.h" #include "entrypoints/quick/quick_entrypoints.h" #include "intrinsics.h" #include "mirror/array-inl.h" #include "mirror/string.h" #include "thread.h" #include "utils/mips64/assembler_mips64.h" #include "utils/mips64/constants_mips64.h" namespace art { namespace mips64 { IntrinsicLocationsBuilderMIPS64::IntrinsicLocationsBuilderMIPS64(CodeGeneratorMIPS64* codegen) : arena_(codegen->GetGraph()->GetArena()) { } Mips64Assembler* IntrinsicCodeGeneratorMIPS64::GetAssembler() { return reinterpret_cast<Mips64Assembler*>(codegen_->GetAssembler()); } ArenaAllocator* IntrinsicCodeGeneratorMIPS64::GetAllocator() { return codegen_->GetGraph()->GetArena(); } #define __ codegen->GetAssembler()-> static void MoveFromReturnRegister(Location trg, Primitive::Type type, CodeGeneratorMIPS64* codegen) { if (!trg.IsValid()) { DCHECK_EQ(type, Primitive::kPrimVoid); return; } DCHECK_NE(type, Primitive::kPrimVoid); if (Primitive::IsIntegralType(type) || type == Primitive::kPrimNot) { GpuRegister trg_reg = trg.AsRegister<GpuRegister>(); if (trg_reg != V0) { __ Move(V0, trg_reg); } } else { FpuRegister trg_reg = trg.AsFpuRegister<FpuRegister>(); if (trg_reg != F0) { if (type == Primitive::kPrimFloat) { __ MovS(F0, trg_reg); } else { __ MovD(F0, trg_reg); } } } } static void MoveArguments(HInvoke* invoke, CodeGeneratorMIPS64* codegen) { InvokeDexCallingConventionVisitorMIPS64 calling_convention_visitor; IntrinsicVisitor::MoveArguments(invoke, codegen, &calling_convention_visitor); } // Slow-path for fallback (calling the managed code to handle the // intrinsic) in an intrinsified call. This will copy the arguments // into the positions for a regular call. // // Note: The actual parameters are required to be in the locations // given by the invoke's location summary. If an intrinsic // modifies those locations before a slowpath call, they must be // restored! class IntrinsicSlowPathMIPS64 : public SlowPathCodeMIPS64 { public: explicit IntrinsicSlowPathMIPS64(HInvoke* invoke) : SlowPathCodeMIPS64(invoke), invoke_(invoke) { } void EmitNativeCode(CodeGenerator* codegen_in) OVERRIDE { CodeGeneratorMIPS64* codegen = down_cast<CodeGeneratorMIPS64*>(codegen_in); __ Bind(GetEntryLabel()); SaveLiveRegisters(codegen, invoke_->GetLocations()); MoveArguments(invoke_, codegen); if (invoke_->IsInvokeStaticOrDirect()) { codegen->GenerateStaticOrDirectCall(invoke_->AsInvokeStaticOrDirect(), Location::RegisterLocation(A0)); } else { codegen->GenerateVirtualCall(invoke_->AsInvokeVirtual(), Location::RegisterLocation(A0)); } codegen->RecordPcInfo(invoke_, invoke_->GetDexPc(), this); // Copy the result back to the expected output. Location out = invoke_->GetLocations()->Out(); if (out.IsValid()) { DCHECK(out.IsRegister()); // TODO: Replace this when we support output in memory. DCHECK(!invoke_->GetLocations()->GetLiveRegisters()->ContainsCoreRegister(out.reg())); MoveFromReturnRegister(out, invoke_->GetType(), codegen); } RestoreLiveRegisters(codegen, invoke_->GetLocations()); __ Bc(GetExitLabel()); } const char* GetDescription() const OVERRIDE { return "IntrinsicSlowPathMIPS64"; } private: // The instruction where this slow path is happening. HInvoke* const invoke_; DISALLOW_COPY_AND_ASSIGN(IntrinsicSlowPathMIPS64); }; #undef __ bool IntrinsicLocationsBuilderMIPS64::TryDispatch(HInvoke* invoke) { Dispatch(invoke); LocationSummary* res = invoke->GetLocations(); return res != nullptr && res->Intrinsified(); } #define __ assembler-> static void CreateFPToIntLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresFpuRegister()); locations->SetOut(Location::RequiresRegister()); } static void MoveFPToInt(LocationSummary* locations, bool is64bit, Mips64Assembler* assembler) { FpuRegister in = locations->InAt(0).AsFpuRegister<FpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); if (is64bit) { __ Dmfc1(out, in); } else { __ Mfc1(out, in); } } // long java.lang.Double.doubleToRawLongBits(double) void IntrinsicLocationsBuilderMIPS64::VisitDoubleDoubleToRawLongBits(HInvoke* invoke) { CreateFPToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitDoubleDoubleToRawLongBits(HInvoke* invoke) { MoveFPToInt(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } // int java.lang.Float.floatToRawIntBits(float) void IntrinsicLocationsBuilderMIPS64::VisitFloatFloatToRawIntBits(HInvoke* invoke) { CreateFPToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitFloatFloatToRawIntBits(HInvoke* invoke) { MoveFPToInt(invoke->GetLocations(), /* is64bit */ false, GetAssembler()); } static void CreateIntToFPLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresRegister()); locations->SetOut(Location::RequiresFpuRegister()); } static void MoveIntToFP(LocationSummary* locations, bool is64bit, Mips64Assembler* assembler) { GpuRegister in = locations->InAt(0).AsRegister<GpuRegister>(); FpuRegister out = locations->Out().AsFpuRegister<FpuRegister>(); if (is64bit) { __ Dmtc1(in, out); } else { __ Mtc1(in, out); } } // double java.lang.Double.longBitsToDouble(long) void IntrinsicLocationsBuilderMIPS64::VisitDoubleLongBitsToDouble(HInvoke* invoke) { CreateIntToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitDoubleLongBitsToDouble(HInvoke* invoke) { MoveIntToFP(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } // float java.lang.Float.intBitsToFloat(int) void IntrinsicLocationsBuilderMIPS64::VisitFloatIntBitsToFloat(HInvoke* invoke) { CreateIntToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitFloatIntBitsToFloat(HInvoke* invoke) { MoveIntToFP(invoke->GetLocations(), /* is64bit */ false, GetAssembler()); } static void CreateIntToIntLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresRegister()); locations->SetOut(Location::RequiresRegister(), Location::kNoOutputOverlap); } static void GenReverseBytes(LocationSummary* locations, Primitive::Type type, Mips64Assembler* assembler) { GpuRegister in = locations->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); switch (type) { case Primitive::kPrimShort: __ Dsbh(out, in); __ Seh(out, out); break; case Primitive::kPrimInt: __ Rotr(out, in, 16); __ Wsbh(out, out); break; case Primitive::kPrimLong: __ Dsbh(out, in); __ Dshd(out, out); break; default: LOG(FATAL) << "Unexpected size for reverse-bytes: " << type; UNREACHABLE(); } } // int java.lang.Integer.reverseBytes(int) void IntrinsicLocationsBuilderMIPS64::VisitIntegerReverseBytes(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitIntegerReverseBytes(HInvoke* invoke) { GenReverseBytes(invoke->GetLocations(), Primitive::kPrimInt, GetAssembler()); } // long java.lang.Long.reverseBytes(long) void IntrinsicLocationsBuilderMIPS64::VisitLongReverseBytes(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitLongReverseBytes(HInvoke* invoke) { GenReverseBytes(invoke->GetLocations(), Primitive::kPrimLong, GetAssembler()); } // short java.lang.Short.reverseBytes(short) void IntrinsicLocationsBuilderMIPS64::VisitShortReverseBytes(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitShortReverseBytes(HInvoke* invoke) { GenReverseBytes(invoke->GetLocations(), Primitive::kPrimShort, GetAssembler()); } static void GenNumberOfLeadingZeroes(LocationSummary* locations, bool is64bit, Mips64Assembler* assembler) { GpuRegister in = locations->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); if (is64bit) { __ Dclz(out, in); } else { __ Clz(out, in); } } // int java.lang.Integer.numberOfLeadingZeros(int i) void IntrinsicLocationsBuilderMIPS64::VisitIntegerNumberOfLeadingZeros(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitIntegerNumberOfLeadingZeros(HInvoke* invoke) { GenNumberOfLeadingZeroes(invoke->GetLocations(), /* is64bit */ false, GetAssembler()); } // int java.lang.Long.numberOfLeadingZeros(long i) void IntrinsicLocationsBuilderMIPS64::VisitLongNumberOfLeadingZeros(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitLongNumberOfLeadingZeros(HInvoke* invoke) { GenNumberOfLeadingZeroes(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } static void GenNumberOfTrailingZeroes(LocationSummary* locations, bool is64bit, Mips64Assembler* assembler) { Location in = locations->InAt(0); Location out = locations->Out(); if (is64bit) { __ Dsbh(out.AsRegister<GpuRegister>(), in.AsRegister<GpuRegister>()); __ Dshd(out.AsRegister<GpuRegister>(), out.AsRegister<GpuRegister>()); __ Dbitswap(out.AsRegister<GpuRegister>(), out.AsRegister<GpuRegister>()); __ Dclz(out.AsRegister<GpuRegister>(), out.AsRegister<GpuRegister>()); } else { __ Rotr(out.AsRegister<GpuRegister>(), in.AsRegister<GpuRegister>(), 16); __ Wsbh(out.AsRegister<GpuRegister>(), out.AsRegister<GpuRegister>()); __ Bitswap(out.AsRegister<GpuRegister>(), out.AsRegister<GpuRegister>()); __ Clz(out.AsRegister<GpuRegister>(), out.AsRegister<GpuRegister>()); } } // int java.lang.Integer.numberOfTrailingZeros(int i) void IntrinsicLocationsBuilderMIPS64::VisitIntegerNumberOfTrailingZeros(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitIntegerNumberOfTrailingZeros(HInvoke* invoke) { GenNumberOfTrailingZeroes(invoke->GetLocations(), /* is64bit */ false, GetAssembler()); } // int java.lang.Long.numberOfTrailingZeros(long i) void IntrinsicLocationsBuilderMIPS64::VisitLongNumberOfTrailingZeros(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitLongNumberOfTrailingZeros(HInvoke* invoke) { GenNumberOfTrailingZeroes(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } static void GenReverse(LocationSummary* locations, Primitive::Type type, Mips64Assembler* assembler) { DCHECK(type == Primitive::kPrimInt || type == Primitive::kPrimLong); GpuRegister in = locations->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); if (type == Primitive::kPrimInt) { __ Rotr(out, in, 16); __ Wsbh(out, out); __ Bitswap(out, out); } else { __ Dsbh(out, in); __ Dshd(out, out); __ Dbitswap(out, out); } } // int java.lang.Integer.reverse(int) void IntrinsicLocationsBuilderMIPS64::VisitIntegerReverse(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitIntegerReverse(HInvoke* invoke) { GenReverse(invoke->GetLocations(), Primitive::kPrimInt, GetAssembler()); } // long java.lang.Long.reverse(long) void IntrinsicLocationsBuilderMIPS64::VisitLongReverse(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitLongReverse(HInvoke* invoke) { GenReverse(invoke->GetLocations(), Primitive::kPrimLong, GetAssembler()); } static void CreateFPToFPLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresFpuRegister()); locations->SetOut(Location::RequiresFpuRegister(), Location::kNoOutputOverlap); } static void MathAbsFP(LocationSummary* locations, bool is64bit, Mips64Assembler* assembler) { FpuRegister in = locations->InAt(0).AsFpuRegister<FpuRegister>(); FpuRegister out = locations->Out().AsFpuRegister<FpuRegister>(); if (is64bit) { __ AbsD(out, in); } else { __ AbsS(out, in); } } // double java.lang.Math.abs(double) void IntrinsicLocationsBuilderMIPS64::VisitMathAbsDouble(HInvoke* invoke) { CreateFPToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathAbsDouble(HInvoke* invoke) { MathAbsFP(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } // float java.lang.Math.abs(float) void IntrinsicLocationsBuilderMIPS64::VisitMathAbsFloat(HInvoke* invoke) { CreateFPToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathAbsFloat(HInvoke* invoke) { MathAbsFP(invoke->GetLocations(), /* is64bit */ false, GetAssembler()); } static void CreateIntToInt(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresRegister()); locations->SetOut(Location::RequiresRegister(), Location::kNoOutputOverlap); } static void GenAbsInteger(LocationSummary* locations, bool is64bit, Mips64Assembler* assembler) { GpuRegister in = locations->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); if (is64bit) { __ Dsra32(AT, in, 31); __ Xor(out, in, AT); __ Dsubu(out, out, AT); } else { __ Sra(AT, in, 31); __ Xor(out, in, AT); __ Subu(out, out, AT); } } // int java.lang.Math.abs(int) void IntrinsicLocationsBuilderMIPS64::VisitMathAbsInt(HInvoke* invoke) { CreateIntToInt(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathAbsInt(HInvoke* invoke) { GenAbsInteger(invoke->GetLocations(), /* is64bit */ false, GetAssembler()); } // long java.lang.Math.abs(long) void IntrinsicLocationsBuilderMIPS64::VisitMathAbsLong(HInvoke* invoke) { CreateIntToInt(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathAbsLong(HInvoke* invoke) { GenAbsInteger(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } static void GenMinMaxFP(LocationSummary* locations, bool is_min, Primitive::Type type, Mips64Assembler* assembler) { FpuRegister a = locations->InAt(0).AsFpuRegister<FpuRegister>(); FpuRegister b = locations->InAt(1).AsFpuRegister<FpuRegister>(); FpuRegister out = locations->Out().AsFpuRegister<FpuRegister>(); Mips64Label noNaNs; Mips64Label done; FpuRegister ftmp = ((out != a) && (out != b)) ? out : FTMP; // When Java computes min/max it prefers a NaN to a number; the // behavior of MIPSR6 is to prefer numbers to NaNs, i.e., if one of // the inputs is a NaN and the other is a valid number, the MIPS // instruction will return the number; Java wants the NaN value // returned. This is why there is extra logic preceding the use of // the MIPS min.fmt/max.fmt instructions. If either a, or b holds a // NaN, return the NaN, otherwise return the min/max. if (type == Primitive::kPrimDouble) { __ CmpUnD(FTMP, a, b); __ Bc1eqz(FTMP, &noNaNs); // One of the inputs is a NaN __ CmpEqD(ftmp, a, a); // If a == a then b is the NaN, otherwise a is the NaN. __ SelD(ftmp, a, b); if (ftmp != out) { __ MovD(out, ftmp); } __ Bc(&done); __ Bind(&noNaNs); if (is_min) { __ MinD(out, a, b); } else { __ MaxD(out, a, b); } } else { DCHECK_EQ(type, Primitive::kPrimFloat); __ CmpUnS(FTMP, a, b); __ Bc1eqz(FTMP, &noNaNs); // One of the inputs is a NaN __ CmpEqS(ftmp, a, a); // If a == a then b is the NaN, otherwise a is the NaN. __ SelS(ftmp, a, b); if (ftmp != out) { __ MovS(out, ftmp); } __ Bc(&done); __ Bind(&noNaNs); if (is_min) { __ MinS(out, a, b); } else { __ MaxS(out, a, b); } } __ Bind(&done); } static void CreateFPFPToFPLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresFpuRegister()); locations->SetInAt(1, Location::RequiresFpuRegister()); locations->SetOut(Location::RequiresFpuRegister(), Location::kNoOutputOverlap); } // double java.lang.Math.min(double, double) void IntrinsicLocationsBuilderMIPS64::VisitMathMinDoubleDouble(HInvoke* invoke) { CreateFPFPToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMinDoubleDouble(HInvoke* invoke) { GenMinMaxFP(invoke->GetLocations(), /* is_min */ true, Primitive::kPrimDouble, GetAssembler()); } // float java.lang.Math.min(float, float) void IntrinsicLocationsBuilderMIPS64::VisitMathMinFloatFloat(HInvoke* invoke) { CreateFPFPToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMinFloatFloat(HInvoke* invoke) { GenMinMaxFP(invoke->GetLocations(), /* is_min */ true, Primitive::kPrimFloat, GetAssembler()); } // double java.lang.Math.max(double, double) void IntrinsicLocationsBuilderMIPS64::VisitMathMaxDoubleDouble(HInvoke* invoke) { CreateFPFPToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMaxDoubleDouble(HInvoke* invoke) { GenMinMaxFP(invoke->GetLocations(), /* is_min */ false, Primitive::kPrimDouble, GetAssembler()); } // float java.lang.Math.max(float, float) void IntrinsicLocationsBuilderMIPS64::VisitMathMaxFloatFloat(HInvoke* invoke) { CreateFPFPToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMaxFloatFloat(HInvoke* invoke) { GenMinMaxFP(invoke->GetLocations(), /* is_min */ false, Primitive::kPrimFloat, GetAssembler()); } static void GenMinMax(LocationSummary* locations, bool is_min, Mips64Assembler* assembler) { GpuRegister lhs = locations->InAt(0).AsRegister<GpuRegister>(); GpuRegister rhs = locations->InAt(1).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); if (lhs == rhs) { if (out != lhs) { __ Move(out, lhs); } } else { // Some architectures, such as ARM and MIPS (prior to r6), have a // conditional move instruction which only changes the target // (output) register if the condition is true (MIPS prior to r6 had // MOVF, MOVT, and MOVZ). The SELEQZ and SELNEZ instructions always // change the target (output) register. If the condition is true the // output register gets the contents of the "rs" register; otherwise, // the output register is set to zero. One consequence of this is // that to implement something like "rd = c==0 ? rs : rt" MIPS64r6 // needs to use a pair of SELEQZ/SELNEZ instructions. After // executing this pair of instructions one of the output registers // from the pair will necessarily contain zero. Then the code ORs the // output registers from the SELEQZ/SELNEZ instructions to get the // final result. // // The initial test to see if the output register is same as the // first input register is needed to make sure that value in the // first input register isn't clobbered before we've finished // computing the output value. The logic in the corresponding else // clause performs the same task but makes sure the second input // register isn't clobbered in the event that it's the same register // as the output register; the else clause also handles the case // where the output register is distinct from both the first, and the // second input registers. if (out == lhs) { __ Slt(AT, rhs, lhs); if (is_min) { __ Seleqz(out, lhs, AT); __ Selnez(AT, rhs, AT); } else { __ Selnez(out, lhs, AT); __ Seleqz(AT, rhs, AT); } } else { __ Slt(AT, lhs, rhs); if (is_min) { __ Seleqz(out, rhs, AT); __ Selnez(AT, lhs, AT); } else { __ Selnez(out, rhs, AT); __ Seleqz(AT, lhs, AT); } } __ Or(out, out, AT); } } static void CreateIntIntToIntLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresRegister()); locations->SetInAt(1, Location::RequiresRegister()); locations->SetOut(Location::RequiresRegister(), Location::kNoOutputOverlap); } // int java.lang.Math.min(int, int) void IntrinsicLocationsBuilderMIPS64::VisitMathMinIntInt(HInvoke* invoke) { CreateIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMinIntInt(HInvoke* invoke) { GenMinMax(invoke->GetLocations(), /* is_min */ true, GetAssembler()); } // long java.lang.Math.min(long, long) void IntrinsicLocationsBuilderMIPS64::VisitMathMinLongLong(HInvoke* invoke) { CreateIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMinLongLong(HInvoke* invoke) { GenMinMax(invoke->GetLocations(), /* is_min */ true, GetAssembler()); } // int java.lang.Math.max(int, int) void IntrinsicLocationsBuilderMIPS64::VisitMathMaxIntInt(HInvoke* invoke) { CreateIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMaxIntInt(HInvoke* invoke) { GenMinMax(invoke->GetLocations(), /* is_min */ false, GetAssembler()); } // long java.lang.Math.max(long, long) void IntrinsicLocationsBuilderMIPS64::VisitMathMaxLongLong(HInvoke* invoke) { CreateIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathMaxLongLong(HInvoke* invoke) { GenMinMax(invoke->GetLocations(), /* is_min */ false, GetAssembler()); } // double java.lang.Math.sqrt(double) void IntrinsicLocationsBuilderMIPS64::VisitMathSqrt(HInvoke* invoke) { CreateFPToFPLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathSqrt(HInvoke* invoke) { LocationSummary* locations = invoke->GetLocations(); Mips64Assembler* assembler = GetAssembler(); FpuRegister in = locations->InAt(0).AsFpuRegister<FpuRegister>(); FpuRegister out = locations->Out().AsFpuRegister<FpuRegister>(); __ SqrtD(out, in); } static void CreateFPToFP(ArenaAllocator* arena, HInvoke* invoke, Location::OutputOverlap overlaps = Location::kOutputOverlap) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresFpuRegister()); locations->SetOut(Location::RequiresFpuRegister(), overlaps); } // double java.lang.Math.rint(double) void IntrinsicLocationsBuilderMIPS64::VisitMathRint(HInvoke* invoke) { CreateFPToFP(arena_, invoke, Location::kNoOutputOverlap); } void IntrinsicCodeGeneratorMIPS64::VisitMathRint(HInvoke* invoke) { LocationSummary* locations = invoke->GetLocations(); Mips64Assembler* assembler = GetAssembler(); FpuRegister in = locations->InAt(0).AsFpuRegister<FpuRegister>(); FpuRegister out = locations->Out().AsFpuRegister<FpuRegister>(); __ RintD(out, in); } // double java.lang.Math.floor(double) void IntrinsicLocationsBuilderMIPS64::VisitMathFloor(HInvoke* invoke) { CreateFPToFP(arena_, invoke); } const constexpr uint16_t kFPLeaveUnchanged = kPositiveZero | kPositiveInfinity | kNegativeZero | kNegativeInfinity | kQuietNaN | kSignalingNaN; enum FloatRoundingMode { kFloor, kCeil, }; static void GenRoundingMode(LocationSummary* locations, FloatRoundingMode mode, Mips64Assembler* assembler) { FpuRegister in = locations->InAt(0).AsFpuRegister<FpuRegister>(); FpuRegister out = locations->Out().AsFpuRegister<FpuRegister>(); DCHECK_NE(in, out); Mips64Label done; // double floor/ceil(double in) { // if in.isNaN || in.isInfinite || in.isZero { // return in; // } __ ClassD(out, in); __ Dmfc1(AT, out); __ Andi(AT, AT, kFPLeaveUnchanged); // +0.0 | +Inf | -0.0 | -Inf | qNaN | sNaN __ MovD(out, in); __ Bnezc(AT, &done); // Long outLong = floor/ceil(in); // if outLong == Long.MAX_VALUE { // // floor()/ceil() has almost certainly returned a value // // which can't be successfully represented as a signed // // 64-bit number. Java expects that the input value will // // be returned in these cases. // // There is also a small probability that floor(in)/ceil(in) // // correctly truncates/rounds up the input value to // // Long.MAX_VALUE. In that case, this exception handling // // code still does the correct thing. // return in; // } if (mode == kFloor) { __ FloorLD(out, in); } else if (mode == kCeil) { __ CeilLD(out, in); } __ Dmfc1(AT, out); __ MovD(out, in); __ LoadConst64(TMP, kPrimLongMax); __ Beqc(AT, TMP, &done); // double out = outLong; // return out; __ Dmtc1(AT, out); __ Cvtdl(out, out); __ Bind(&done); // } } void IntrinsicCodeGeneratorMIPS64::VisitMathFloor(HInvoke* invoke) { GenRoundingMode(invoke->GetLocations(), kFloor, GetAssembler()); } // double java.lang.Math.ceil(double) void IntrinsicLocationsBuilderMIPS64::VisitMathCeil(HInvoke* invoke) { CreateFPToFP(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMathCeil(HInvoke* invoke) { GenRoundingMode(invoke->GetLocations(), kCeil, GetAssembler()); } // byte libcore.io.Memory.peekByte(long address) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPeekByte(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPeekByte(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = invoke->GetLocations()->Out().AsRegister<GpuRegister>(); __ Lb(out, adr, 0); } // short libcore.io.Memory.peekShort(long address) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPeekShortNative(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPeekShortNative(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = invoke->GetLocations()->Out().AsRegister<GpuRegister>(); __ Lh(out, adr, 0); } // int libcore.io.Memory.peekInt(long address) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPeekIntNative(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPeekIntNative(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = invoke->GetLocations()->Out().AsRegister<GpuRegister>(); __ Lw(out, adr, 0); } // long libcore.io.Memory.peekLong(long address) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPeekLongNative(HInvoke* invoke) { CreateIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPeekLongNative(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister out = invoke->GetLocations()->Out().AsRegister<GpuRegister>(); __ Ld(out, adr, 0); } static void CreateIntIntToVoidLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresRegister()); locations->SetInAt(1, Location::RequiresRegister()); } // void libcore.io.Memory.pokeByte(long address, byte value) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPokeByte(HInvoke* invoke) { CreateIntIntToVoidLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPokeByte(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister val = invoke->GetLocations()->InAt(1).AsRegister<GpuRegister>(); __ Sb(val, adr, 0); } // void libcore.io.Memory.pokeShort(long address, short value) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPokeShortNative(HInvoke* invoke) { CreateIntIntToVoidLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPokeShortNative(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister val = invoke->GetLocations()->InAt(1).AsRegister<GpuRegister>(); __ Sh(val, adr, 0); } // void libcore.io.Memory.pokeInt(long address, int value) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPokeIntNative(HInvoke* invoke) { CreateIntIntToVoidLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPokeIntNative(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister val = invoke->GetLocations()->InAt(1).AsRegister<GpuRegister>(); __ Sw(val, adr, 00); } // void libcore.io.Memory.pokeLong(long address, long value) void IntrinsicLocationsBuilderMIPS64::VisitMemoryPokeLongNative(HInvoke* invoke) { CreateIntIntToVoidLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitMemoryPokeLongNative(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister adr = invoke->GetLocations()->InAt(0).AsRegister<GpuRegister>(); GpuRegister val = invoke->GetLocations()->InAt(1).AsRegister<GpuRegister>(); __ Sd(val, adr, 0); } // Thread java.lang.Thread.currentThread() void IntrinsicLocationsBuilderMIPS64::VisitThreadCurrentThread(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetOut(Location::RequiresRegister()); } void IntrinsicCodeGeneratorMIPS64::VisitThreadCurrentThread(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); GpuRegister out = invoke->GetLocations()->Out().AsRegister<GpuRegister>(); __ LoadFromOffset(kLoadUnsignedWord, out, TR, Thread::PeerOffset<kMips64PointerSize>().Int32Value()); } static void CreateIntIntIntToIntLocations(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::NoLocation()); // Unused receiver. locations->SetInAt(1, Location::RequiresRegister()); locations->SetInAt(2, Location::RequiresRegister()); locations->SetOut(Location::RequiresRegister(), Location::kNoOutputOverlap); } static void GenUnsafeGet(HInvoke* invoke, Primitive::Type type, bool is_volatile, CodeGeneratorMIPS64* codegen) { LocationSummary* locations = invoke->GetLocations(); DCHECK((type == Primitive::kPrimInt) || (type == Primitive::kPrimLong) || (type == Primitive::kPrimNot)); Mips64Assembler* assembler = codegen->GetAssembler(); // Object pointer. GpuRegister base = locations->InAt(1).AsRegister<GpuRegister>(); // Long offset. GpuRegister offset = locations->InAt(2).AsRegister<GpuRegister>(); GpuRegister trg = locations->Out().AsRegister<GpuRegister>(); __ Daddu(TMP, base, offset); if (is_volatile) { __ Sync(0); } switch (type) { case Primitive::kPrimInt: __ Lw(trg, TMP, 0); break; case Primitive::kPrimNot: __ Lwu(trg, TMP, 0); break; case Primitive::kPrimLong: __ Ld(trg, TMP, 0); break; default: LOG(FATAL) << "Unsupported op size " << type; UNREACHABLE(); } } // int sun.misc.Unsafe.getInt(Object o, long offset) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeGet(HInvoke* invoke) { CreateIntIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeGet(HInvoke* invoke) { GenUnsafeGet(invoke, Primitive::kPrimInt, /* is_volatile */ false, codegen_); } // int sun.misc.Unsafe.getIntVolatile(Object o, long offset) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeGetVolatile(HInvoke* invoke) { CreateIntIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeGetVolatile(HInvoke* invoke) { GenUnsafeGet(invoke, Primitive::kPrimInt, /* is_volatile */ true, codegen_); } // long sun.misc.Unsafe.getLong(Object o, long offset) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeGetLong(HInvoke* invoke) { CreateIntIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeGetLong(HInvoke* invoke) { GenUnsafeGet(invoke, Primitive::kPrimLong, /* is_volatile */ false, codegen_); } // long sun.misc.Unsafe.getLongVolatile(Object o, long offset) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeGetLongVolatile(HInvoke* invoke) { CreateIntIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeGetLongVolatile(HInvoke* invoke) { GenUnsafeGet(invoke, Primitive::kPrimLong, /* is_volatile */ true, codegen_); } // Object sun.misc.Unsafe.getObject(Object o, long offset) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeGetObject(HInvoke* invoke) { CreateIntIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeGetObject(HInvoke* invoke) { GenUnsafeGet(invoke, Primitive::kPrimNot, /* is_volatile */ false, codegen_); } // Object sun.misc.Unsafe.getObjectVolatile(Object o, long offset) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeGetObjectVolatile(HInvoke* invoke) { CreateIntIntIntToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeGetObjectVolatile(HInvoke* invoke) { GenUnsafeGet(invoke, Primitive::kPrimNot, /* is_volatile */ true, codegen_); } static void CreateIntIntIntIntToVoid(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::NoLocation()); // Unused receiver. locations->SetInAt(1, Location::RequiresRegister()); locations->SetInAt(2, Location::RequiresRegister()); locations->SetInAt(3, Location::RequiresRegister()); } static void GenUnsafePut(LocationSummary* locations, Primitive::Type type, bool is_volatile, bool is_ordered, CodeGeneratorMIPS64* codegen) { DCHECK((type == Primitive::kPrimInt) || (type == Primitive::kPrimLong) || (type == Primitive::kPrimNot)); Mips64Assembler* assembler = codegen->GetAssembler(); // Object pointer. GpuRegister base = locations->InAt(1).AsRegister<GpuRegister>(); // Long offset. GpuRegister offset = locations->InAt(2).AsRegister<GpuRegister>(); GpuRegister value = locations->InAt(3).AsRegister<GpuRegister>(); __ Daddu(TMP, base, offset); if (is_volatile || is_ordered) { __ Sync(0); } switch (type) { case Primitive::kPrimInt: case Primitive::kPrimNot: __ Sw(value, TMP, 0); break; case Primitive::kPrimLong: __ Sd(value, TMP, 0); break; default: LOG(FATAL) << "Unsupported op size " << type; UNREACHABLE(); } if (is_volatile) { __ Sync(0); } if (type == Primitive::kPrimNot) { bool value_can_be_null = true; // TODO: Worth finding out this information? codegen->MarkGCCard(base, value, value_can_be_null); } } // void sun.misc.Unsafe.putInt(Object o, long offset, int x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePut(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePut(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimInt, /* is_volatile */ false, /* is_ordered */ false, codegen_); } // void sun.misc.Unsafe.putOrderedInt(Object o, long offset, int x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutOrdered(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutOrdered(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimInt, /* is_volatile */ false, /* is_ordered */ true, codegen_); } // void sun.misc.Unsafe.putIntVolatile(Object o, long offset, int x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutVolatile(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutVolatile(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimInt, /* is_volatile */ true, /* is_ordered */ false, codegen_); } // void sun.misc.Unsafe.putObject(Object o, long offset, Object x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutObject(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutObject(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimNot, /* is_volatile */ false, /* is_ordered */ false, codegen_); } // void sun.misc.Unsafe.putOrderedObject(Object o, long offset, Object x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutObjectOrdered(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutObjectOrdered(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimNot, /* is_volatile */ false, /* is_ordered */ true, codegen_); } // void sun.misc.Unsafe.putObjectVolatile(Object o, long offset, Object x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutObjectVolatile(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutObjectVolatile(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimNot, /* is_volatile */ true, /* is_ordered */ false, codegen_); } // void sun.misc.Unsafe.putLong(Object o, long offset, long x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutLong(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutLong(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimLong, /* is_volatile */ false, /* is_ordered */ false, codegen_); } // void sun.misc.Unsafe.putOrderedLong(Object o, long offset, long x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutLongOrdered(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutLongOrdered(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimLong, /* is_volatile */ false, /* is_ordered */ true, codegen_); } // void sun.misc.Unsafe.putLongVolatile(Object o, long offset, long x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafePutLongVolatile(HInvoke* invoke) { CreateIntIntIntIntToVoid(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafePutLongVolatile(HInvoke* invoke) { GenUnsafePut(invoke->GetLocations(), Primitive::kPrimLong, /* is_volatile */ true, /* is_ordered */ false, codegen_); } static void CreateIntIntIntIntIntToInt(ArenaAllocator* arena, HInvoke* invoke) { LocationSummary* locations = new (arena) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::NoLocation()); // Unused receiver. locations->SetInAt(1, Location::RequiresRegister()); locations->SetInAt(2, Location::RequiresRegister()); locations->SetInAt(3, Location::RequiresRegister()); locations->SetInAt(4, Location::RequiresRegister()); locations->SetOut(Location::RequiresRegister()); } static void GenCas(LocationSummary* locations, Primitive::Type type, CodeGeneratorMIPS64* codegen) { Mips64Assembler* assembler = codegen->GetAssembler(); GpuRegister base = locations->InAt(1).AsRegister<GpuRegister>(); GpuRegister offset = locations->InAt(2).AsRegister<GpuRegister>(); GpuRegister expected = locations->InAt(3).AsRegister<GpuRegister>(); GpuRegister value = locations->InAt(4).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); DCHECK_NE(base, out); DCHECK_NE(offset, out); DCHECK_NE(expected, out); if (type == Primitive::kPrimNot) { // Mark card for object assuming new value is stored. bool value_can_be_null = true; // TODO: Worth finding out this information? codegen->MarkGCCard(base, value, value_can_be_null); } // do { // tmp_value = [tmp_ptr] - expected; // } while (tmp_value == 0 && failure([tmp_ptr] <- r_new_value)); // result = tmp_value != 0; Mips64Label loop_head, exit_loop; __ Daddu(TMP, base, offset); __ Sync(0); __ Bind(&loop_head); if (type == Primitive::kPrimLong) { __ Lld(out, TMP); } else { // Note: We will need a read barrier here, when read barrier // support is added to the MIPS64 back end. __ Ll(out, TMP); } __ Dsubu(out, out, expected); // If we didn't get the 'expected' __ Sltiu(out, out, 1); // value, set 'out' to false, and __ Beqzc(out, &exit_loop); // return. __ Move(out, value); // Use 'out' for the 'store conditional' instruction. // If we use 'value' directly, we would lose 'value' // in the case that the store fails. Whether the // store succeeds, or fails, it will load the // correct boolean value into the 'out' register. if (type == Primitive::kPrimLong) { __ Scd(out, TMP); } else { __ Sc(out, TMP); } __ Beqzc(out, &loop_head); // If we couldn't do the read-modify-write // cycle atomically then retry. __ Bind(&exit_loop); __ Sync(0); } // boolean sun.misc.Unsafe.compareAndSwapInt(Object o, long offset, int expected, int x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeCASInt(HInvoke* invoke) { CreateIntIntIntIntIntToInt(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeCASInt(HInvoke* invoke) { GenCas(invoke->GetLocations(), Primitive::kPrimInt, codegen_); } // boolean sun.misc.Unsafe.compareAndSwapLong(Object o, long offset, long expected, long x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeCASLong(HInvoke* invoke) { CreateIntIntIntIntIntToInt(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeCASLong(HInvoke* invoke) { GenCas(invoke->GetLocations(), Primitive::kPrimLong, codegen_); } // boolean sun.misc.Unsafe.compareAndSwapObject(Object o, long offset, Object expected, Object x) void IntrinsicLocationsBuilderMIPS64::VisitUnsafeCASObject(HInvoke* invoke) { CreateIntIntIntIntIntToInt(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitUnsafeCASObject(HInvoke* invoke) { GenCas(invoke->GetLocations(), Primitive::kPrimNot, codegen_); } // char java.lang.String.charAt(int index) void IntrinsicLocationsBuilderMIPS64::VisitStringCharAt(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kCallOnSlowPath, kIntrinsified); locations->SetInAt(0, Location::RequiresRegister()); locations->SetInAt(1, Location::RequiresRegister()); locations->SetOut(Location::SameAsFirstInput()); } void IntrinsicCodeGeneratorMIPS64::VisitStringCharAt(HInvoke* invoke) { LocationSummary* locations = invoke->GetLocations(); Mips64Assembler* assembler = GetAssembler(); // Location of reference to data array const int32_t value_offset = mirror::String::ValueOffset().Int32Value(); // Location of count const int32_t count_offset = mirror::String::CountOffset().Int32Value(); GpuRegister obj = locations->InAt(0).AsRegister<GpuRegister>(); GpuRegister idx = locations->InAt(1).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); // TODO: Maybe we can support range check elimination. Overall, // though, I think it's not worth the cost. // TODO: For simplicity, the index parameter is requested in a // register, so different from Quick we will not optimize the // code for constants (which would save a register). SlowPathCodeMIPS64* slow_path = new (GetAllocator()) IntrinsicSlowPathMIPS64(invoke); codegen_->AddSlowPath(slow_path); // Load the string size __ Lw(TMP, obj, count_offset); codegen_->MaybeRecordImplicitNullCheck(invoke); // Revert to slow path if idx is too large, or negative __ Bgeuc(idx, TMP, slow_path->GetEntryLabel()); // out = obj[2*idx]. __ Sll(TMP, idx, 1); // idx * 2 __ Daddu(TMP, TMP, obj); // Address of char at location idx __ Lhu(out, TMP, value_offset); // Load char at location idx __ Bind(slow_path->GetExitLabel()); } // int java.lang.String.compareTo(String anotherString) void IntrinsicLocationsBuilderMIPS64::VisitStringCompareTo(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kCall, kIntrinsified); InvokeRuntimeCallingConvention calling_convention; locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(0))); locations->SetInAt(1, Location::RegisterLocation(calling_convention.GetRegisterAt(1))); Location outLocation = calling_convention.GetReturnLocation(Primitive::kPrimInt); locations->SetOut(Location::RegisterLocation(outLocation.AsRegister<GpuRegister>())); } void IntrinsicCodeGeneratorMIPS64::VisitStringCompareTo(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); LocationSummary* locations = invoke->GetLocations(); // Note that the null check must have been done earlier. DCHECK(!invoke->CanDoImplicitNullCheckOn(invoke->InputAt(0))); GpuRegister argument = locations->InAt(1).AsRegister<GpuRegister>(); SlowPathCodeMIPS64* slow_path = new (GetAllocator()) IntrinsicSlowPathMIPS64(invoke); codegen_->AddSlowPath(slow_path); __ Beqzc(argument, slow_path->GetEntryLabel()); __ LoadFromOffset(kLoadDoubleword, T9, TR, QUICK_ENTRYPOINT_OFFSET(kMips64DoublewordSize, pStringCompareTo).Int32Value()); __ Jalr(T9); __ Nop(); __ Bind(slow_path->GetExitLabel()); } // boolean java.lang.String.equals(Object anObject) void IntrinsicLocationsBuilderMIPS64::VisitStringEquals(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kNoCall, kIntrinsified); locations->SetInAt(0, Location::RequiresRegister()); locations->SetInAt(1, Location::RequiresRegister()); locations->SetOut(Location::RequiresRegister()); // Temporary registers to store lengths of strings and for calculations. locations->AddTemp(Location::RequiresRegister()); locations->AddTemp(Location::RequiresRegister()); locations->AddTemp(Location::RequiresRegister()); } void IntrinsicCodeGeneratorMIPS64::VisitStringEquals(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); LocationSummary* locations = invoke->GetLocations(); GpuRegister str = locations->InAt(0).AsRegister<GpuRegister>(); GpuRegister arg = locations->InAt(1).AsRegister<GpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); GpuRegister temp1 = locations->GetTemp(0).AsRegister<GpuRegister>(); GpuRegister temp2 = locations->GetTemp(1).AsRegister<GpuRegister>(); GpuRegister temp3 = locations->GetTemp(2).AsRegister<GpuRegister>(); Mips64Label loop; Mips64Label end; Mips64Label return_true; Mips64Label return_false; // Get offsets of count, value, and class fields within a string object. const int32_t count_offset = mirror::String::CountOffset().Int32Value(); const int32_t value_offset = mirror::String::ValueOffset().Int32Value(); const int32_t class_offset = mirror::Object::ClassOffset().Int32Value(); // Note that the null check must have been done earlier. DCHECK(!invoke->CanDoImplicitNullCheckOn(invoke->InputAt(0))); // If the register containing the pointer to "this", and the register // containing the pointer to "anObject" are the same register then // "this", and "anObject" are the same object and we can // short-circuit the logic to a true result. if (str == arg) { __ LoadConst64(out, 1); return; } // Check if input is null, return false if it is. __ Beqzc(arg, &return_false); // Reference equality check, return true if same reference. __ Beqc(str, arg, &return_true); // Instanceof check for the argument by comparing class fields. // All string objects must have the same type since String cannot be subclassed. // Receiver must be a string object, so its class field is equal to all strings' class fields. // If the argument is a string object, its class field must be equal to receiver's class field. __ Lw(temp1, str, class_offset); __ Lw(temp2, arg, class_offset); __ Bnec(temp1, temp2, &return_false); // Load lengths of this and argument strings. __ Lw(temp1, str, count_offset); __ Lw(temp2, arg, count_offset); // Check if lengths are equal, return false if they're not. __ Bnec(temp1, temp2, &return_false); // Return true if both strings are empty. __ Beqzc(temp1, &return_true); // Don't overwrite input registers __ Move(TMP, str); __ Move(temp3, arg); // Assertions that must hold in order to compare strings 4 characters at a time. DCHECK_ALIGNED(value_offset, 8); static_assert(IsAligned<8>(kObjectAlignment), "String of odd length is not zero padded"); // Loop to compare strings 4 characters at a time starting at the beginning of the string. // Ok to do this because strings are zero-padded to be 8-byte aligned. __ Bind(&loop); __ Ld(out, TMP, value_offset); __ Ld(temp2, temp3, value_offset); __ Bnec(out, temp2, &return_false); __ Daddiu(TMP, TMP, 8); __ Daddiu(temp3, temp3, 8); __ Addiu(temp1, temp1, -4); __ Bgtzc(temp1, &loop); // Return true and exit the function. // If loop does not result in returning false, we return true. __ Bind(&return_true); __ LoadConst64(out, 1); __ Bc(&end); // Return false and exit the function. __ Bind(&return_false); __ LoadConst64(out, 0); __ Bind(&end); } static void GenerateStringIndexOf(HInvoke* invoke, Mips64Assembler* assembler, CodeGeneratorMIPS64* codegen, ArenaAllocator* allocator, bool start_at_zero) { LocationSummary* locations = invoke->GetLocations(); GpuRegister tmp_reg = start_at_zero ? locations->GetTemp(0).AsRegister<GpuRegister>() : TMP; // Note that the null check must have been done earlier. DCHECK(!invoke->CanDoImplicitNullCheckOn(invoke->InputAt(0))); // Check for code points > 0xFFFF. Either a slow-path check when we // don't know statically, or directly dispatch if we have a constant. SlowPathCodeMIPS64* slow_path = nullptr; if (invoke->InputAt(1)->IsIntConstant()) { if (!IsUint<16>(invoke->InputAt(1)->AsIntConstant()->GetValue())) { // Always needs the slow-path. We could directly dispatch to it, // but this case should be rare, so for simplicity just put the // full slow-path down and branch unconditionally. slow_path = new (allocator) IntrinsicSlowPathMIPS64(invoke); codegen->AddSlowPath(slow_path); __ Bc(slow_path->GetEntryLabel()); __ Bind(slow_path->GetExitLabel()); return; } } else { GpuRegister char_reg = locations->InAt(1).AsRegister<GpuRegister>(); __ LoadConst32(tmp_reg, std::numeric_limits<uint16_t>::max()); slow_path = new (allocator) IntrinsicSlowPathMIPS64(invoke); codegen->AddSlowPath(slow_path); __ Bltuc(tmp_reg, char_reg, slow_path->GetEntryLabel()); // UTF-16 required } if (start_at_zero) { DCHECK_EQ(tmp_reg, A2); // Start-index = 0. __ Clear(tmp_reg); } __ LoadFromOffset(kLoadDoubleword, T9, TR, QUICK_ENTRYPOINT_OFFSET(kMips64DoublewordSize, pIndexOf).Int32Value()); CheckEntrypointTypes<kQuickIndexOf, int32_t, void*, uint32_t, uint32_t>(); __ Jalr(T9); __ Nop(); if (slow_path != nullptr) { __ Bind(slow_path->GetExitLabel()); } } // int java.lang.String.indexOf(int ch) void IntrinsicLocationsBuilderMIPS64::VisitStringIndexOf(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kCall, kIntrinsified); // We have a hand-crafted assembly stub that follows the runtime // calling convention. So it's best to align the inputs accordingly. InvokeRuntimeCallingConvention calling_convention; locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(0))); locations->SetInAt(1, Location::RegisterLocation(calling_convention.GetRegisterAt(1))); Location outLocation = calling_convention.GetReturnLocation(Primitive::kPrimInt); locations->SetOut(Location::RegisterLocation(outLocation.AsRegister<GpuRegister>())); // Need a temp for slow-path codepoint compare, and need to send start-index=0. locations->AddTemp(Location::RegisterLocation(calling_convention.GetRegisterAt(2))); } void IntrinsicCodeGeneratorMIPS64::VisitStringIndexOf(HInvoke* invoke) { GenerateStringIndexOf(invoke, GetAssembler(), codegen_, GetAllocator(), /* start_at_zero */ true); } // int java.lang.String.indexOf(int ch, int fromIndex) void IntrinsicLocationsBuilderMIPS64::VisitStringIndexOfAfter(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kCall, kIntrinsified); // We have a hand-crafted assembly stub that follows the runtime // calling convention. So it's best to align the inputs accordingly. InvokeRuntimeCallingConvention calling_convention; locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(0))); locations->SetInAt(1, Location::RegisterLocation(calling_convention.GetRegisterAt(1))); locations->SetInAt(2, Location::RegisterLocation(calling_convention.GetRegisterAt(2))); Location outLocation = calling_convention.GetReturnLocation(Primitive::kPrimInt); locations->SetOut(Location::RegisterLocation(outLocation.AsRegister<GpuRegister>())); } void IntrinsicCodeGeneratorMIPS64::VisitStringIndexOfAfter(HInvoke* invoke) { GenerateStringIndexOf( invoke, GetAssembler(), codegen_, GetAllocator(), /* start_at_zero */ false); } // java.lang.StringFactory.newStringFromBytes(byte[] data, int high, int offset, int byteCount) void IntrinsicLocationsBuilderMIPS64::VisitStringNewStringFromBytes(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kCall, kIntrinsified); InvokeRuntimeCallingConvention calling_convention; locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(0))); locations->SetInAt(1, Location::RegisterLocation(calling_convention.GetRegisterAt(1))); locations->SetInAt(2, Location::RegisterLocation(calling_convention.GetRegisterAt(2))); locations->SetInAt(3, Location::RegisterLocation(calling_convention.GetRegisterAt(3))); Location outLocation = calling_convention.GetReturnLocation(Primitive::kPrimInt); locations->SetOut(Location::RegisterLocation(outLocation.AsRegister<GpuRegister>())); } void IntrinsicCodeGeneratorMIPS64::VisitStringNewStringFromBytes(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); LocationSummary* locations = invoke->GetLocations(); GpuRegister byte_array = locations->InAt(0).AsRegister<GpuRegister>(); SlowPathCodeMIPS64* slow_path = new (GetAllocator()) IntrinsicSlowPathMIPS64(invoke); codegen_->AddSlowPath(slow_path); __ Beqzc(byte_array, slow_path->GetEntryLabel()); __ LoadFromOffset(kLoadDoubleword, T9, TR, QUICK_ENTRYPOINT_OFFSET(kMips64DoublewordSize, pAllocStringFromBytes).Int32Value()); CheckEntrypointTypes<kQuickAllocStringFromBytes, void*, void*, int32_t, int32_t, int32_t>(); __ Jalr(T9); __ Nop(); codegen_->RecordPcInfo(invoke, invoke->GetDexPc()); __ Bind(slow_path->GetExitLabel()); } // java.lang.StringFactory.newStringFromChars(int offset, int charCount, char[] data) void IntrinsicLocationsBuilderMIPS64::VisitStringNewStringFromChars(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kCall, kIntrinsified); InvokeRuntimeCallingConvention calling_convention; locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(0))); locations->SetInAt(1, Location::RegisterLocation(calling_convention.GetRegisterAt(1))); locations->SetInAt(2, Location::RegisterLocation(calling_convention.GetRegisterAt(2))); Location outLocation = calling_convention.GetReturnLocation(Primitive::kPrimInt); locations->SetOut(Location::RegisterLocation(outLocation.AsRegister<GpuRegister>())); } void IntrinsicCodeGeneratorMIPS64::VisitStringNewStringFromChars(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); // No need to emit code checking whether `locations->InAt(2)` is a null // pointer, as callers of the native method // // java.lang.StringFactory.newStringFromChars(int offset, int charCount, char[] data) // // all include a null check on `data` before calling that method. __ LoadFromOffset(kLoadDoubleword, T9, TR, QUICK_ENTRYPOINT_OFFSET(kMips64DoublewordSize, pAllocStringFromChars).Int32Value()); CheckEntrypointTypes<kQuickAllocStringFromChars, void*, int32_t, int32_t, void*>(); __ Jalr(T9); __ Nop(); codegen_->RecordPcInfo(invoke, invoke->GetDexPc()); } // java.lang.StringFactory.newStringFromString(String toCopy) void IntrinsicLocationsBuilderMIPS64::VisitStringNewStringFromString(HInvoke* invoke) { LocationSummary* locations = new (arena_) LocationSummary(invoke, LocationSummary::kCall, kIntrinsified); InvokeRuntimeCallingConvention calling_convention; locations->SetInAt(0, Location::RegisterLocation(calling_convention.GetRegisterAt(0))); Location outLocation = calling_convention.GetReturnLocation(Primitive::kPrimInt); locations->SetOut(Location::RegisterLocation(outLocation.AsRegister<GpuRegister>())); } void IntrinsicCodeGeneratorMIPS64::VisitStringNewStringFromString(HInvoke* invoke) { Mips64Assembler* assembler = GetAssembler(); LocationSummary* locations = invoke->GetLocations(); GpuRegister string_to_copy = locations->InAt(0).AsRegister<GpuRegister>(); SlowPathCodeMIPS64* slow_path = new (GetAllocator()) IntrinsicSlowPathMIPS64(invoke); codegen_->AddSlowPath(slow_path); __ Beqzc(string_to_copy, slow_path->GetEntryLabel()); __ LoadFromOffset(kLoadDoubleword, T9, TR, QUICK_ENTRYPOINT_OFFSET(kMips64DoublewordSize, pAllocStringFromString).Int32Value()); CheckEntrypointTypes<kQuickAllocStringFromString, void*, void*>(); __ Jalr(T9); __ Nop(); codegen_->RecordPcInfo(invoke, invoke->GetDexPc()); __ Bind(slow_path->GetExitLabel()); } static void GenIsInfinite(LocationSummary* locations, bool is64bit, Mips64Assembler* assembler) { FpuRegister in = locations->InAt(0).AsFpuRegister<FpuRegister>(); GpuRegister out = locations->Out().AsRegister<GpuRegister>(); if (is64bit) { __ ClassD(FTMP, in); } else { __ ClassS(FTMP, in); } __ Mfc1(out, FTMP); __ Andi(out, out, kPositiveInfinity | kNegativeInfinity); __ Sltu(out, ZERO, out); } // boolean java.lang.Float.isInfinite(float) void IntrinsicLocationsBuilderMIPS64::VisitFloatIsInfinite(HInvoke* invoke) { CreateFPToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitFloatIsInfinite(HInvoke* invoke) { GenIsInfinite(invoke->GetLocations(), /* is64bit */ false, GetAssembler()); } // boolean java.lang.Double.isInfinite(double) void IntrinsicLocationsBuilderMIPS64::VisitDoubleIsInfinite(HInvoke* invoke) { CreateFPToIntLocations(arena_, invoke); } void IntrinsicCodeGeneratorMIPS64::VisitDoubleIsInfinite(HInvoke* invoke) { GenIsInfinite(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } UNIMPLEMENTED_INTRINSIC(MIPS64, IntegerBitCount) UNIMPLEMENTED_INTRINSIC(MIPS64, LongBitCount) UNIMPLEMENTED_INTRINSIC(MIPS64, MathRoundDouble) UNIMPLEMENTED_INTRINSIC(MIPS64, MathRoundFloat) UNIMPLEMENTED_INTRINSIC(MIPS64, ReferenceGetReferent) UNIMPLEMENTED_INTRINSIC(MIPS64, StringGetCharsNoCheck) UNIMPLEMENTED_INTRINSIC(MIPS64, SystemArrayCopyChar) UNIMPLEMENTED_INTRINSIC(MIPS64, SystemArrayCopy) UNIMPLEMENTED_INTRINSIC(MIPS64, MathCos) UNIMPLEMENTED_INTRINSIC(MIPS64, MathSin) UNIMPLEMENTED_INTRINSIC(MIPS64, MathAcos) UNIMPLEMENTED_INTRINSIC(MIPS64, MathAsin) UNIMPLEMENTED_INTRINSIC(MIPS64, MathAtan) UNIMPLEMENTED_INTRINSIC(MIPS64, MathAtan2) UNIMPLEMENTED_INTRINSIC(MIPS64, MathCbrt) UNIMPLEMENTED_INTRINSIC(MIPS64, MathCosh) UNIMPLEMENTED_INTRINSIC(MIPS64, MathExp) UNIMPLEMENTED_INTRINSIC(MIPS64, MathExpm1) UNIMPLEMENTED_INTRINSIC(MIPS64, MathHypot) UNIMPLEMENTED_INTRINSIC(MIPS64, MathLog) UNIMPLEMENTED_INTRINSIC(MIPS64, MathLog10) UNIMPLEMENTED_INTRINSIC(MIPS64, MathNextAfter) UNIMPLEMENTED_INTRINSIC(MIPS64, MathSinh) UNIMPLEMENTED_INTRINSIC(MIPS64, MathTan) UNIMPLEMENTED_INTRINSIC(MIPS64, MathTanh) UNIMPLEMENTED_INTRINSIC(MIPS64, IntegerHighestOneBit) UNIMPLEMENTED_INTRINSIC(MIPS64, LongHighestOneBit) UNIMPLEMENTED_INTRINSIC(MIPS64, IntegerLowestOneBit) UNIMPLEMENTED_INTRINSIC(MIPS64, LongLowestOneBit) // 1.8. UNIMPLEMENTED_INTRINSIC(MIPS64, UnsafeGetAndAddInt) UNIMPLEMENTED_INTRINSIC(MIPS64, UnsafeGetAndAddLong) UNIMPLEMENTED_INTRINSIC(MIPS64, UnsafeGetAndSetInt) UNIMPLEMENTED_INTRINSIC(MIPS64, UnsafeGetAndSetLong) UNIMPLEMENTED_INTRINSIC(MIPS64, UnsafeGetAndSetObject) UNREACHABLE_INTRINSICS(MIPS64) #undef __ } // namespace mips64 } // namespace art