diff options
| -rw-r--r-- | compiler/optimizing/intrinsics_mips64.cc | 83 |
1 files changed, 78 insertions, 5 deletions
diff --git a/compiler/optimizing/intrinsics_mips64.cc b/compiler/optimizing/intrinsics_mips64.cc index cc4971b8f8..088ebc2ab2 100644 --- a/compiler/optimizing/intrinsics_mips64.cc +++ b/compiler/optimizing/intrinsics_mips64.cc @@ -1879,6 +1879,84 @@ void IntrinsicCodeGeneratorMIPS64::VisitDoubleIsInfinite(HInvoke* invoke) { GenIsInfinite(invoke->GetLocations(), /* is64bit */ true, GetAssembler()); } +static void GenHighestOneBit(LocationSummary* locations, + Primitive::Type type, + Mips64Assembler* assembler) { + DCHECK(type == Primitive::kPrimInt || type == Primitive::kPrimLong) << PrettyDescriptor(type); + + GpuRegister in = locations->InAt(0).AsRegister<GpuRegister>(); + GpuRegister out = locations->Out().AsRegister<GpuRegister>(); + + if (type == Primitive::kPrimLong) { + __ Dclz(TMP, in); + __ LoadConst64(AT, INT64_C(0x8000000000000000)); + __ Dsrlv(out, AT, TMP); + } else { + __ Clz(TMP, in); + __ LoadConst32(AT, 0x80000000); + __ Srlv(out, AT, TMP); + } + // For either value of "type", when "in" is zero, "out" should also + // be zero. Without this extra "and" operation, when "in" is zero, + // "out" would be either Integer.MIN_VALUE, or Long.MIN_VALUE because + // the MIPS logical shift operations "dsrlv", and "srlv" don't use + // the shift amount (TMP) directly; they use either (TMP % 64) or + // (TMP % 32), respectively. + __ And(out, out, in); +} + +// int java.lang.Integer.highestOneBit(int) +void IntrinsicLocationsBuilderMIPS64::VisitIntegerHighestOneBit(HInvoke* invoke) { + CreateIntToIntLocations(arena_, invoke); +} + +void IntrinsicCodeGeneratorMIPS64::VisitIntegerHighestOneBit(HInvoke* invoke) { + GenHighestOneBit(invoke->GetLocations(), Primitive::kPrimInt, GetAssembler()); +} + +// long java.lang.Long.highestOneBit(long) +void IntrinsicLocationsBuilderMIPS64::VisitLongHighestOneBit(HInvoke* invoke) { + CreateIntToIntLocations(arena_, invoke); +} + +void IntrinsicCodeGeneratorMIPS64::VisitLongHighestOneBit(HInvoke* invoke) { + GenHighestOneBit(invoke->GetLocations(), Primitive::kPrimLong, GetAssembler()); +} + +static void GenLowestOneBit(LocationSummary* locations, + Primitive::Type type, + Mips64Assembler* assembler) { + DCHECK(type == Primitive::kPrimInt || type == Primitive::kPrimLong) << PrettyDescriptor(type); + + GpuRegister in = locations->InAt(0).AsRegister<GpuRegister>(); + GpuRegister out = locations->Out().AsRegister<GpuRegister>(); + + if (type == Primitive::kPrimLong) { + __ Dsubu(TMP, ZERO, in); + } else { + __ Subu(TMP, ZERO, in); + } + __ And(out, TMP, in); +} + +// int java.lang.Integer.lowestOneBit(int) +void IntrinsicLocationsBuilderMIPS64::VisitIntegerLowestOneBit(HInvoke* invoke) { + CreateIntToIntLocations(arena_, invoke); +} + +void IntrinsicCodeGeneratorMIPS64::VisitIntegerLowestOneBit(HInvoke* invoke) { + GenLowestOneBit(invoke->GetLocations(), Primitive::kPrimInt, GetAssembler()); +} + +// long java.lang.Long.lowestOneBit(long) +void IntrinsicLocationsBuilderMIPS64::VisitLongLowestOneBit(HInvoke* invoke) { + CreateIntToIntLocations(arena_, invoke); +} + +void IntrinsicCodeGeneratorMIPS64::VisitLongLowestOneBit(HInvoke* invoke) { + GenLowestOneBit(invoke->GetLocations(), Primitive::kPrimLong, GetAssembler()); +} + UNIMPLEMENTED_INTRINSIC(MIPS64, ReferenceGetReferent) UNIMPLEMENTED_INTRINSIC(MIPS64, StringGetCharsNoCheck) UNIMPLEMENTED_INTRINSIC(MIPS64, SystemArrayCopyChar) @@ -1902,11 +1980,6 @@ 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) |