| // Copyright 2016 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/execution/arm64/simulator-arm64.h" |
| |
| #if defined(USE_SIMULATOR) |
| |
| #include <cmath> |
| |
| namespace v8 { |
| namespace internal { |
| |
| namespace { |
| |
| // See FPRound for a description of this function. |
| inline double FPRoundToDouble(int64_t sign, int64_t exponent, uint64_t mantissa, |
| FPRounding round_mode) { |
| uint64_t bits = FPRound<uint64_t, kDoubleExponentBits, kDoubleMantissaBits>( |
| sign, exponent, mantissa, round_mode); |
| return bit_cast<double>(bits); |
| } |
| |
| // See FPRound for a description of this function. |
| inline float FPRoundToFloat(int64_t sign, int64_t exponent, uint64_t mantissa, |
| FPRounding round_mode) { |
| uint32_t bits = FPRound<uint32_t, kFloatExponentBits, kFloatMantissaBits>( |
| sign, exponent, mantissa, round_mode); |
| return bit_cast<float>(bits); |
| } |
| |
| // See FPRound for a description of this function. |
| inline float16 FPRoundToFloat16(int64_t sign, int64_t exponent, |
| uint64_t mantissa, FPRounding round_mode) { |
| return FPRound<float16, kFloat16ExponentBits, kFloat16MantissaBits>( |
| sign, exponent, mantissa, round_mode); |
| } |
| |
| } // namespace |
| |
| double Simulator::FixedToDouble(int64_t src, int fbits, FPRounding round) { |
| if (src >= 0) { |
| return UFixedToDouble(src, fbits, round); |
| } else if (src == INT64_MIN) { |
| return -UFixedToDouble(src, fbits, round); |
| } else { |
| return -UFixedToDouble(-src, fbits, round); |
| } |
| } |
| |
| double Simulator::UFixedToDouble(uint64_t src, int fbits, FPRounding round) { |
| // An input of 0 is a special case because the result is effectively |
| // subnormal: The exponent is encoded as 0 and there is no implicit 1 bit. |
| if (src == 0) { |
| return 0.0; |
| } |
| |
| // Calculate the exponent. The highest significant bit will have the value |
| // 2^exponent. |
| const int highest_significant_bit = 63 - CountLeadingZeros(src, 64); |
| const int64_t exponent = highest_significant_bit - fbits; |
| |
| return FPRoundToDouble(0, exponent, src, round); |
| } |
| |
| float Simulator::FixedToFloat(int64_t src, int fbits, FPRounding round) { |
| if (src >= 0) { |
| return UFixedToFloat(src, fbits, round); |
| } else if (src == INT64_MIN) { |
| return -UFixedToFloat(src, fbits, round); |
| } else { |
| return -UFixedToFloat(-src, fbits, round); |
| } |
| } |
| |
| float Simulator::UFixedToFloat(uint64_t src, int fbits, FPRounding round) { |
| // An input of 0 is a special case because the result is effectively |
| // subnormal: The exponent is encoded as 0 and there is no implicit 1 bit. |
| if (src == 0) { |
| return 0.0f; |
| } |
| |
| // Calculate the exponent. The highest significant bit will have the value |
| // 2^exponent. |
| const int highest_significant_bit = 63 - CountLeadingZeros(src, 64); |
| const int32_t exponent = highest_significant_bit - fbits; |
| |
| return FPRoundToFloat(0, exponent, src, round); |
| } |
| |
| double Simulator::FPToDouble(float value) { |
| switch (std::fpclassify(value)) { |
| case FP_NAN: { |
| if (IsSignallingNaN(value)) { |
| FPProcessException(); |
| } |
| if (DN()) return kFP64DefaultNaN; |
| |
| // Convert NaNs as the processor would: |
| // - The sign is propagated. |
| // - The mantissa is transferred entirely, except that the top bit is |
| // forced to '1', making the result a quiet NaN. The unused (low-order) |
| // mantissa bits are set to 0. |
| uint32_t raw = bit_cast<uint32_t>(value); |
| |
| uint64_t sign = raw >> 31; |
| uint64_t exponent = (1 << kDoubleExponentBits) - 1; |
| uint64_t mantissa = unsigned_bitextract_64(21, 0, raw); |
| |
| // Unused low-order bits remain zero. |
| mantissa <<= (kDoubleMantissaBits - kFloatMantissaBits); |
| |
| // Force a quiet NaN. |
| mantissa |= (UINT64_C(1) << (kDoubleMantissaBits - 1)); |
| |
| return double_pack(sign, exponent, mantissa); |
| } |
| |
| case FP_ZERO: |
| case FP_NORMAL: |
| case FP_SUBNORMAL: |
| case FP_INFINITE: { |
| // All other inputs are preserved in a standard cast, because every value |
| // representable using an IEEE-754 float is also representable using an |
| // IEEE-754 double. |
| return static_cast<double>(value); |
| } |
| } |
| |
| UNREACHABLE(); |
| } |
| |
| float Simulator::FPToFloat(float16 value) { |
| uint32_t sign = value >> 15; |
| uint32_t exponent = |
| unsigned_bitextract_32(kFloat16MantissaBits + kFloat16ExponentBits - 1, |
| kFloat16MantissaBits, value); |
| uint32_t mantissa = |
| unsigned_bitextract_32(kFloat16MantissaBits - 1, 0, value); |
| |
| switch (float16classify(value)) { |
| case FP_ZERO: |
| return (sign == 0) ? 0.0f : -0.0f; |
| |
| case FP_INFINITE: |
| return (sign == 0) ? kFP32PositiveInfinity : kFP32NegativeInfinity; |
| |
| case FP_SUBNORMAL: { |
| // Calculate shift required to put mantissa into the most-significant bits |
| // of the destination mantissa. |
| int shift = CountLeadingZeros(mantissa << (32 - 10), 32); |
| |
| // Shift mantissa and discard implicit '1'. |
| mantissa <<= (kFloatMantissaBits - kFloat16MantissaBits) + shift + 1; |
| mantissa &= (1 << kFloatMantissaBits) - 1; |
| |
| // Adjust the exponent for the shift applied, and rebias. |
| exponent = exponent - shift + (kFloatExponentBias - kFloat16ExponentBias); |
| break; |
| } |
| |
| case FP_NAN: { |
| if (IsSignallingNaN(value)) { |
| FPProcessException(); |
| } |
| if (DN()) return kFP32DefaultNaN; |
| |
| // Convert NaNs as the processor would: |
| // - The sign is propagated. |
| // - The mantissa is transferred entirely, except that the top bit is |
| // forced to '1', making the result a quiet NaN. The unused (low-order) |
| // mantissa bits are set to 0. |
| exponent = (1 << kFloatExponentBits) - 1; |
| |
| // Increase bits in mantissa, making low-order bits 0. |
| mantissa <<= (kFloatMantissaBits - kFloat16MantissaBits); |
| mantissa |= 1 << (kFloatMantissaBits - 1); // Force a quiet NaN. |
| break; |
| } |
| |
| case FP_NORMAL: { |
| // Increase bits in mantissa, making low-order bits 0. |
| mantissa <<= (kFloatMantissaBits - kFloat16MantissaBits); |
| |
| // Change exponent bias. |
| exponent += (kFloatExponentBias - kFloat16ExponentBias); |
| break; |
| } |
| |
| default: |
| UNREACHABLE(); |
| } |
| return float_pack(sign, exponent, mantissa); |
| } |
| |
| float16 Simulator::FPToFloat16(float value, FPRounding round_mode) { |
| // Only the FPTieEven rounding mode is implemented. |
| DCHECK_EQ(round_mode, FPTieEven); |
| USE(round_mode); |
| |
| int64_t sign = float_sign(value); |
| int64_t exponent = |
| static_cast<int64_t>(float_exp(value)) - kFloatExponentBias; |
| uint32_t mantissa = float_mantissa(value); |
| |
| switch (std::fpclassify(value)) { |
| case FP_NAN: { |
| if (IsSignallingNaN(value)) { |
| FPProcessException(); |
| } |
| if (DN()) return kFP16DefaultNaN; |
| |
| // Convert NaNs as the processor would: |
| // - The sign is propagated. |
| // - The mantissa is transferred as much as possible, except that the top |
| // bit is forced to '1', making the result a quiet NaN. |
| float16 result = |
| (sign == 0) ? kFP16PositiveInfinity : kFP16NegativeInfinity; |
| result |= mantissa >> (kFloatMantissaBits - kFloat16MantissaBits); |
| result |= (1 << (kFloat16MantissaBits - 1)); // Force a quiet NaN; |
| return result; |
| } |
| |
| case FP_ZERO: |
| return (sign == 0) ? 0 : 0x8000; |
| |
| case FP_INFINITE: |
| return (sign == 0) ? kFP16PositiveInfinity : kFP16NegativeInfinity; |
| |
| case FP_NORMAL: |
| case FP_SUBNORMAL: { |
| // Convert float-to-half as the processor would, assuming that FPCR.FZ |
| // (flush-to-zero) is not set. |
| |
| // Add the implicit '1' bit to the mantissa. |
| mantissa += (1 << kFloatMantissaBits); |
| return FPRoundToFloat16(sign, exponent, mantissa, round_mode); |
| } |
| } |
| |
| UNREACHABLE(); |
| } |
| |
| float16 Simulator::FPToFloat16(double value, FPRounding round_mode) { |
| // Only the FPTieEven rounding mode is implemented. |
| DCHECK_EQ(round_mode, FPTieEven); |
| USE(round_mode); |
| |
| int64_t sign = double_sign(value); |
| int64_t exponent = |
| static_cast<int64_t>(double_exp(value)) - kDoubleExponentBias; |
| uint64_t mantissa = double_mantissa(value); |
| |
| switch (std::fpclassify(value)) { |
| case FP_NAN: { |
| if (IsSignallingNaN(value)) { |
| FPProcessException(); |
| } |
| if (DN()) return kFP16DefaultNaN; |
| |
| // Convert NaNs as the processor would: |
| // - The sign is propagated. |
| // - The mantissa is transferred as much as possible, except that the top |
| // bit is forced to '1', making the result a quiet NaN. |
| float16 result = |
| (sign == 0) ? kFP16PositiveInfinity : kFP16NegativeInfinity; |
| result |= mantissa >> (kDoubleMantissaBits - kFloat16MantissaBits); |
| result |= (1 << (kFloat16MantissaBits - 1)); // Force a quiet NaN; |
| return result; |
| } |
| |
| case FP_ZERO: |
| return (sign == 0) ? 0 : 0x8000; |
| |
| case FP_INFINITE: |
| return (sign == 0) ? kFP16PositiveInfinity : kFP16NegativeInfinity; |
| |
| case FP_NORMAL: |
| case FP_SUBNORMAL: { |
| // Convert double-to-half as the processor would, assuming that FPCR.FZ |
| // (flush-to-zero) is not set. |
| |
| // Add the implicit '1' bit to the mantissa. |
| mantissa += (UINT64_C(1) << kDoubleMantissaBits); |
| return FPRoundToFloat16(sign, exponent, mantissa, round_mode); |
| } |
| } |
| |
| UNREACHABLE(); |
| } |
| |
| float Simulator::FPToFloat(double value, FPRounding round_mode) { |
| // Only the FPTieEven rounding mode is implemented. |
| DCHECK((round_mode == FPTieEven) || (round_mode == FPRoundOdd)); |
| USE(round_mode); |
| |
| switch (std::fpclassify(value)) { |
| case FP_NAN: { |
| if (IsSignallingNaN(value)) { |
| FPProcessException(); |
| } |
| if (DN()) return kFP32DefaultNaN; |
| |
| // Convert NaNs as the processor would: |
| // - The sign is propagated. |
| // - The mantissa is transferred as much as possible, except that the |
| // top bit is forced to '1', making the result a quiet NaN. |
| |
| uint64_t raw = bit_cast<uint64_t>(value); |
| |
| uint32_t sign = raw >> 63; |
| uint32_t exponent = (1 << 8) - 1; |
| uint32_t mantissa = static_cast<uint32_t>(unsigned_bitextract_64( |
| 50, kDoubleMantissaBits - kFloatMantissaBits, raw)); |
| mantissa |= (1 << (kFloatMantissaBits - 1)); // Force a quiet NaN. |
| |
| return float_pack(sign, exponent, mantissa); |
| } |
| |
| case FP_ZERO: |
| case FP_INFINITE: { |
| // In a C++ cast, any value representable in the target type will be |
| // unchanged. This is always the case for +/-0.0 and infinities. |
| return static_cast<float>(value); |
| } |
| |
| case FP_NORMAL: |
| case FP_SUBNORMAL: { |
| // Convert double-to-float as the processor would, assuming that FPCR.FZ |
| // (flush-to-zero) is not set. |
| uint32_t sign = double_sign(value); |
| int64_t exponent = |
| static_cast<int64_t>(double_exp(value)) - kDoubleExponentBias; |
| uint64_t mantissa = double_mantissa(value); |
| if (std::fpclassify(value) == FP_NORMAL) { |
| // For normal FP values, add the hidden bit. |
| mantissa |= (UINT64_C(1) << kDoubleMantissaBits); |
| } |
| return FPRoundToFloat(sign, exponent, mantissa, round_mode); |
| } |
| } |
| |
| UNREACHABLE(); |
| } |
| |
| void Simulator::ld1(VectorFormat vform, LogicVRegister dst, uint64_t addr) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.ReadUintFromMem(vform, i, addr); |
| addr += LaneSizeInBytesFromFormat(vform); |
| } |
| } |
| |
| void Simulator::ld1(VectorFormat vform, LogicVRegister dst, int index, |
| uint64_t addr) { |
| dst.ReadUintFromMem(vform, index, addr); |
| } |
| |
| void Simulator::ld1r(VectorFormat vform, LogicVRegister dst, uint64_t addr) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.ReadUintFromMem(vform, i, addr); |
| } |
| } |
| |
| void Simulator::ld2(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, uint64_t addr1) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| int esize = LaneSizeInBytesFromFormat(vform); |
| uint64_t addr2 = addr1 + esize; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst1.ReadUintFromMem(vform, i, addr1); |
| dst2.ReadUintFromMem(vform, i, addr2); |
| addr1 += 2 * esize; |
| addr2 += 2 * esize; |
| } |
| } |
| |
| void Simulator::ld2(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, int index, uint64_t addr1) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| uint64_t addr2 = addr1 + LaneSizeInBytesFromFormat(vform); |
| dst1.ReadUintFromMem(vform, index, addr1); |
| dst2.ReadUintFromMem(vform, index, addr2); |
| } |
| |
| void Simulator::ld2r(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, uint64_t addr) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| uint64_t addr2 = addr + LaneSizeInBytesFromFormat(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst1.ReadUintFromMem(vform, i, addr); |
| dst2.ReadUintFromMem(vform, i, addr2); |
| } |
| } |
| |
| void Simulator::ld3(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, LogicVRegister dst3, uint64_t addr1) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| dst3.ClearForWrite(vform); |
| int esize = LaneSizeInBytesFromFormat(vform); |
| uint64_t addr2 = addr1 + esize; |
| uint64_t addr3 = addr2 + esize; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst1.ReadUintFromMem(vform, i, addr1); |
| dst2.ReadUintFromMem(vform, i, addr2); |
| dst3.ReadUintFromMem(vform, i, addr3); |
| addr1 += 3 * esize; |
| addr2 += 3 * esize; |
| addr3 += 3 * esize; |
| } |
| } |
| |
| void Simulator::ld3(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, LogicVRegister dst3, int index, |
| uint64_t addr1) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| dst3.ClearForWrite(vform); |
| uint64_t addr2 = addr1 + LaneSizeInBytesFromFormat(vform); |
| uint64_t addr3 = addr2 + LaneSizeInBytesFromFormat(vform); |
| dst1.ReadUintFromMem(vform, index, addr1); |
| dst2.ReadUintFromMem(vform, index, addr2); |
| dst3.ReadUintFromMem(vform, index, addr3); |
| } |
| |
| void Simulator::ld3r(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, LogicVRegister dst3, uint64_t addr) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| dst3.ClearForWrite(vform); |
| uint64_t addr2 = addr + LaneSizeInBytesFromFormat(vform); |
| uint64_t addr3 = addr2 + LaneSizeInBytesFromFormat(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst1.ReadUintFromMem(vform, i, addr); |
| dst2.ReadUintFromMem(vform, i, addr2); |
| dst3.ReadUintFromMem(vform, i, addr3); |
| } |
| } |
| |
| void Simulator::ld4(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, LogicVRegister dst3, |
| LogicVRegister dst4, uint64_t addr1) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| dst3.ClearForWrite(vform); |
| dst4.ClearForWrite(vform); |
| int esize = LaneSizeInBytesFromFormat(vform); |
| uint64_t addr2 = addr1 + esize; |
| uint64_t addr3 = addr2 + esize; |
| uint64_t addr4 = addr3 + esize; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst1.ReadUintFromMem(vform, i, addr1); |
| dst2.ReadUintFromMem(vform, i, addr2); |
| dst3.ReadUintFromMem(vform, i, addr3); |
| dst4.ReadUintFromMem(vform, i, addr4); |
| addr1 += 4 * esize; |
| addr2 += 4 * esize; |
| addr3 += 4 * esize; |
| addr4 += 4 * esize; |
| } |
| } |
| |
| void Simulator::ld4(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, LogicVRegister dst3, |
| LogicVRegister dst4, int index, uint64_t addr1) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| dst3.ClearForWrite(vform); |
| dst4.ClearForWrite(vform); |
| uint64_t addr2 = addr1 + LaneSizeInBytesFromFormat(vform); |
| uint64_t addr3 = addr2 + LaneSizeInBytesFromFormat(vform); |
| uint64_t addr4 = addr3 + LaneSizeInBytesFromFormat(vform); |
| dst1.ReadUintFromMem(vform, index, addr1); |
| dst2.ReadUintFromMem(vform, index, addr2); |
| dst3.ReadUintFromMem(vform, index, addr3); |
| dst4.ReadUintFromMem(vform, index, addr4); |
| } |
| |
| void Simulator::ld4r(VectorFormat vform, LogicVRegister dst1, |
| LogicVRegister dst2, LogicVRegister dst3, |
| LogicVRegister dst4, uint64_t addr) { |
| dst1.ClearForWrite(vform); |
| dst2.ClearForWrite(vform); |
| dst3.ClearForWrite(vform); |
| dst4.ClearForWrite(vform); |
| uint64_t addr2 = addr + LaneSizeInBytesFromFormat(vform); |
| uint64_t addr3 = addr2 + LaneSizeInBytesFromFormat(vform); |
| uint64_t addr4 = addr3 + LaneSizeInBytesFromFormat(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst1.ReadUintFromMem(vform, i, addr); |
| dst2.ReadUintFromMem(vform, i, addr2); |
| dst3.ReadUintFromMem(vform, i, addr3); |
| dst4.ReadUintFromMem(vform, i, addr4); |
| } |
| } |
| |
| void Simulator::st1(VectorFormat vform, LogicVRegister src, uint64_t addr) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| src.WriteUintToMem(vform, i, addr); |
| addr += LaneSizeInBytesFromFormat(vform); |
| } |
| } |
| |
| void Simulator::st1(VectorFormat vform, LogicVRegister src, int index, |
| uint64_t addr) { |
| src.WriteUintToMem(vform, index, addr); |
| } |
| |
| void Simulator::st2(VectorFormat vform, LogicVRegister dst, LogicVRegister dst2, |
| uint64_t addr) { |
| int esize = LaneSizeInBytesFromFormat(vform); |
| uint64_t addr2 = addr + esize; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.WriteUintToMem(vform, i, addr); |
| dst2.WriteUintToMem(vform, i, addr2); |
| addr += 2 * esize; |
| addr2 += 2 * esize; |
| } |
| } |
| |
| void Simulator::st2(VectorFormat vform, LogicVRegister dst, LogicVRegister dst2, |
| int index, uint64_t addr) { |
| int esize = LaneSizeInBytesFromFormat(vform); |
| dst.WriteUintToMem(vform, index, addr); |
| dst2.WriteUintToMem(vform, index, addr + 1 * esize); |
| } |
| |
| void Simulator::st3(VectorFormat vform, LogicVRegister dst, LogicVRegister dst2, |
| LogicVRegister dst3, uint64_t addr) { |
| int esize = LaneSizeInBytesFromFormat(vform); |
| uint64_t addr2 = addr + esize; |
| uint64_t addr3 = addr2 + esize; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.WriteUintToMem(vform, i, addr); |
| dst2.WriteUintToMem(vform, i, addr2); |
| dst3.WriteUintToMem(vform, i, addr3); |
| addr += 3 * esize; |
| addr2 += 3 * esize; |
| addr3 += 3 * esize; |
| } |
| } |
| |
| void Simulator::st3(VectorFormat vform, LogicVRegister dst, LogicVRegister dst2, |
| LogicVRegister dst3, int index, uint64_t addr) { |
| int esize = LaneSizeInBytesFromFormat(vform); |
| dst.WriteUintToMem(vform, index, addr); |
| dst2.WriteUintToMem(vform, index, addr + 1 * esize); |
| dst3.WriteUintToMem(vform, index, addr + 2 * esize); |
| } |
| |
| void Simulator::st4(VectorFormat vform, LogicVRegister dst, LogicVRegister dst2, |
| LogicVRegister dst3, LogicVRegister dst4, uint64_t addr) { |
| int esize = LaneSizeInBytesFromFormat(vform); |
| uint64_t addr2 = addr + esize; |
| uint64_t addr3 = addr2 + esize; |
| uint64_t addr4 = addr3 + esize; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.WriteUintToMem(vform, i, addr); |
| dst2.WriteUintToMem(vform, i, addr2); |
| dst3.WriteUintToMem(vform, i, addr3); |
| dst4.WriteUintToMem(vform, i, addr4); |
| addr += 4 * esize; |
| addr2 += 4 * esize; |
| addr3 += 4 * esize; |
| addr4 += 4 * esize; |
| } |
| } |
| |
| void Simulator::st4(VectorFormat vform, LogicVRegister dst, LogicVRegister dst2, |
| LogicVRegister dst3, LogicVRegister dst4, int index, |
| uint64_t addr) { |
| int esize = LaneSizeInBytesFromFormat(vform); |
| dst.WriteUintToMem(vform, index, addr); |
| dst2.WriteUintToMem(vform, index, addr + 1 * esize); |
| dst3.WriteUintToMem(vform, index, addr + 2 * esize); |
| dst4.WriteUintToMem(vform, index, addr + 3 * esize); |
| } |
| |
| LogicVRegister Simulator::cmp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, Condition cond) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| int64_t sa = src1.Int(vform, i); |
| int64_t sb = src2.Int(vform, i); |
| uint64_t ua = src1.Uint(vform, i); |
| uint64_t ub = src2.Uint(vform, i); |
| bool result = false; |
| switch (cond) { |
| case eq: |
| result = (ua == ub); |
| break; |
| case ge: |
| result = (sa >= sb); |
| break; |
| case gt: |
| result = (sa > sb); |
| break; |
| case hi: |
| result = (ua > ub); |
| break; |
| case hs: |
| result = (ua >= ub); |
| break; |
| case lt: |
| result = (sa < sb); |
| break; |
| case le: |
| result = (sa <= sb); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| dst.SetUint(vform, i, result ? MaxUintFromFormat(vform) : 0); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::cmp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, int imm, |
| Condition cond) { |
| SimVRegister temp; |
| LogicVRegister imm_reg = dup_immediate(vform, temp, imm); |
| return cmp(vform, dst, src1, imm_reg, cond); |
| } |
| |
| LogicVRegister Simulator::cmptst(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t ua = src1.Uint(vform, i); |
| uint64_t ub = src2.Uint(vform, i); |
| dst.SetUint(vform, i, ((ua & ub) != 0) ? MaxUintFromFormat(vform) : 0); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::add(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| int lane_size = LaneSizeInBitsFromFormat(vform); |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| // Test for unsigned saturation. |
| uint64_t ua = src1.UintLeftJustified(vform, i); |
| uint64_t ub = src2.UintLeftJustified(vform, i); |
| uint64_t ur = ua + ub; |
| if (ur < ua) { |
| dst.SetUnsignedSat(i, true); |
| } |
| |
| // Test for signed saturation. |
| bool pos_a = (ua >> 63) == 0; |
| bool pos_b = (ub >> 63) == 0; |
| bool pos_r = (ur >> 63) == 0; |
| // If the signs of the operands are the same, but different from the result, |
| // there was an overflow. |
| if ((pos_a == pos_b) && (pos_a != pos_r)) { |
| dst.SetSignedSat(i, pos_a); |
| } |
| |
| dst.SetInt(vform, i, ur >> (64 - lane_size)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::addp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uzp1(vform, temp1, src1, src2); |
| uzp2(vform, temp2, src1, src2); |
| add(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::mla(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| mul(vform, temp, src1, src2); |
| add(vform, dst, dst, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::mls(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| mul(vform, temp, src1, src2); |
| sub(vform, dst, dst, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::mul(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, src1.Uint(vform, i) * src2.Uint(vform, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::mul(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = VectorFormatFillQ(vform); |
| return mul(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::mla(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = VectorFormatFillQ(vform); |
| return mla(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::mls(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = VectorFormatFillQ(vform); |
| return mls(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::smull(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return smull(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::smull2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return smull2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::umull(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return umull(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::umull2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return umull2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::smlal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return smlal(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::smlal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return smlal2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::umlal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return umlal(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::umlal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return umlal2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::smlsl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return smlsl(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::smlsl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return smlsl2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::umlsl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return umlsl(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::umlsl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return umlsl2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqdmull(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return sqdmull(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqdmull2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return sqdmull2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqdmlal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return sqdmlal(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqdmlal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return sqdmlal2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqdmlsl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return sqdmlsl(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqdmlsl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = |
| VectorFormatHalfWidthDoubleLanes(VectorFormatFillQ(vform)); |
| return sqdmlsl2(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqdmulh(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = VectorFormatFillQ(vform); |
| return sqdmulh(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| LogicVRegister Simulator::sqrdmulh(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| SimVRegister temp; |
| VectorFormat indexform = VectorFormatFillQ(vform); |
| return sqrdmulh(vform, dst, src1, dup_element(indexform, temp, src2, index)); |
| } |
| |
| uint16_t Simulator::PolynomialMult(uint8_t op1, uint8_t op2) { |
| uint16_t result = 0; |
| uint16_t extended_op2 = op2; |
| for (int i = 0; i < 8; ++i) { |
| if ((op1 >> i) & 1) { |
| result = result ^ (extended_op2 << i); |
| } |
| } |
| return result; |
| } |
| |
| LogicVRegister Simulator::pmul(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, |
| PolynomialMult(src1.Uint(vform, i), src2.Uint(vform, i))); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::pmull(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| VectorFormat vform_src = VectorFormatHalfWidth(vform); |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint( |
| vform, i, |
| PolynomialMult(src1.Uint(vform_src, i), src2.Uint(vform_src, i))); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::pmull2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| VectorFormat vform_src = VectorFormatHalfWidthDoubleLanes(vform); |
| dst.ClearForWrite(vform); |
| int lane_count = LaneCountFromFormat(vform); |
| for (int i = 0; i < lane_count; i++) { |
| dst.SetUint(vform, i, |
| PolynomialMult(src1.Uint(vform_src, lane_count + i), |
| src2.Uint(vform_src, lane_count + i))); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sub(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| int lane_size = LaneSizeInBitsFromFormat(vform); |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| // Test for unsigned saturation. |
| uint64_t ua = src1.UintLeftJustified(vform, i); |
| uint64_t ub = src2.UintLeftJustified(vform, i); |
| uint64_t ur = ua - ub; |
| if (ub > ua) { |
| dst.SetUnsignedSat(i, false); |
| } |
| |
| // Test for signed saturation. |
| bool pos_a = (ua >> 63) == 0; |
| bool pos_b = (ub >> 63) == 0; |
| bool pos_r = (ur >> 63) == 0; |
| // If the signs of the operands are different, and the sign of the first |
| // operand doesn't match the result, there was an overflow. |
| if ((pos_a != pos_b) && (pos_a != pos_r)) { |
| dst.SetSignedSat(i, pos_a); |
| } |
| |
| dst.SetInt(vform, i, ur >> (64 - lane_size)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::and_(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, src1.Uint(vform, i) & src2.Uint(vform, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::orr(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, src1.Uint(vform, i) | src2.Uint(vform, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::orn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, src1.Uint(vform, i) | ~src2.Uint(vform, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::eor(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, src1.Uint(vform, i) ^ src2.Uint(vform, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::bic(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, src1.Uint(vform, i) & ~src2.Uint(vform, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::bic(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, uint64_t imm) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| result[i] = src.Uint(vform, i) & ~imm; |
| } |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::bif(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t operand1 = dst.Uint(vform, i); |
| uint64_t operand2 = ~src2.Uint(vform, i); |
| uint64_t operand3 = src1.Uint(vform, i); |
| uint64_t result = operand1 ^ ((operand1 ^ operand3) & operand2); |
| dst.SetUint(vform, i, result); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::bit(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t operand1 = dst.Uint(vform, i); |
| uint64_t operand2 = src2.Uint(vform, i); |
| uint64_t operand3 = src1.Uint(vform, i); |
| uint64_t result = operand1 ^ ((operand1 ^ operand3) & operand2); |
| dst.SetUint(vform, i, result); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::bsl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t operand1 = src2.Uint(vform, i); |
| uint64_t operand2 = dst.Uint(vform, i); |
| uint64_t operand3 = src1.Uint(vform, i); |
| uint64_t result = operand1 ^ ((operand1 ^ operand3) & operand2); |
| dst.SetUint(vform, i, result); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::SMinMax(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, bool max) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| int64_t src1_val = src1.Int(vform, i); |
| int64_t src2_val = src2.Int(vform, i); |
| int64_t dst_val; |
| if (max) { |
| dst_val = (src1_val > src2_val) ? src1_val : src2_val; |
| } else { |
| dst_val = (src1_val < src2_val) ? src1_val : src2_val; |
| } |
| dst.SetInt(vform, i, dst_val); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smax(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return SMinMax(vform, dst, src1, src2, true); |
| } |
| |
| LogicVRegister Simulator::smin(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return SMinMax(vform, dst, src1, src2, false); |
| } |
| |
| LogicVRegister Simulator::SMinMaxP(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, bool max) { |
| int lanes = LaneCountFromFormat(vform); |
| int64_t result[kMaxLanesPerVector]; |
| const LogicVRegister* src = &src1; |
| for (int j = 0; j < 2; j++) { |
| for (int i = 0; i < lanes; i += 2) { |
| int64_t first_val = src->Int(vform, i); |
| int64_t second_val = src->Int(vform, i + 1); |
| int64_t dst_val; |
| if (max) { |
| dst_val = (first_val > second_val) ? first_val : second_val; |
| } else { |
| dst_val = (first_val < second_val) ? first_val : second_val; |
| } |
| DCHECK_LT((i >> 1) + (j * lanes / 2), kMaxLanesPerVector); |
| result[(i >> 1) + (j * lanes / 2)] = dst_val; |
| } |
| src = &src2; |
| } |
| dst.SetIntArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smaxp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return SMinMaxP(vform, dst, src1, src2, true); |
| } |
| |
| LogicVRegister Simulator::sminp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return SMinMaxP(vform, dst, src1, src2, false); |
| } |
| |
| LogicVRegister Simulator::addp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| DCHECK_EQ(vform, kFormatD); |
| |
| uint64_t dst_val = src.Uint(kFormat2D, 0) + src.Uint(kFormat2D, 1); |
| dst.ClearForWrite(vform); |
| dst.SetUint(vform, 0, dst_val); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::addv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| VectorFormat vform_dst = |
| ScalarFormatFromLaneSize(LaneSizeInBitsFromFormat(vform)); |
| |
| int64_t dst_val = 0; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst_val += src.Int(vform, i); |
| } |
| |
| dst.ClearForWrite(vform_dst); |
| dst.SetInt(vform_dst, 0, dst_val); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::saddlv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| VectorFormat vform_dst = |
| ScalarFormatFromLaneSize(LaneSizeInBitsFromFormat(vform) * 2); |
| |
| int64_t dst_val = 0; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst_val += src.Int(vform, i); |
| } |
| |
| dst.ClearForWrite(vform_dst); |
| dst.SetInt(vform_dst, 0, dst_val); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uaddlv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| VectorFormat vform_dst = |
| ScalarFormatFromLaneSize(LaneSizeInBitsFromFormat(vform) * 2); |
| |
| uint64_t dst_val = 0; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst_val += src.Uint(vform, i); |
| } |
| |
| dst.ClearForWrite(vform_dst); |
| dst.SetUint(vform_dst, 0, dst_val); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::SMinMaxV(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, bool max) { |
| int64_t dst_val = max ? INT64_MIN : INT64_MAX; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| int64_t src_val = src.Int(vform, i); |
| if (max) { |
| dst_val = (src_val > dst_val) ? src_val : dst_val; |
| } else { |
| dst_val = (src_val < dst_val) ? src_val : dst_val; |
| } |
| } |
| dst.ClearForWrite(ScalarFormatFromFormat(vform)); |
| dst.SetInt(vform, 0, dst_val); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smaxv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| SMinMaxV(vform, dst, src, true); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sminv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| SMinMaxV(vform, dst, src, false); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::UMinMax(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, bool max) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t src1_val = src1.Uint(vform, i); |
| uint64_t src2_val = src2.Uint(vform, i); |
| uint64_t dst_val; |
| if (max) { |
| dst_val = (src1_val > src2_val) ? src1_val : src2_val; |
| } else { |
| dst_val = (src1_val < src2_val) ? src1_val : src2_val; |
| } |
| dst.SetUint(vform, i, dst_val); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umax(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return UMinMax(vform, dst, src1, src2, true); |
| } |
| |
| LogicVRegister Simulator::umin(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return UMinMax(vform, dst, src1, src2, false); |
| } |
| |
| LogicVRegister Simulator::UMinMaxP(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, bool max) { |
| int lanes = LaneCountFromFormat(vform); |
| uint64_t result[kMaxLanesPerVector]; |
| const LogicVRegister* src = &src1; |
| for (int j = 0; j < 2; j++) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i += 2) { |
| uint64_t first_val = src->Uint(vform, i); |
| uint64_t second_val = src->Uint(vform, i + 1); |
| uint64_t dst_val; |
| if (max) { |
| dst_val = (first_val > second_val) ? first_val : second_val; |
| } else { |
| dst_val = (first_val < second_val) ? first_val : second_val; |
| } |
| DCHECK_LT((i >> 1) + (j * lanes / 2), kMaxLanesPerVector); |
| result[(i >> 1) + (j * lanes / 2)] = dst_val; |
| } |
| src = &src2; |
| } |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umaxp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return UMinMaxP(vform, dst, src1, src2, true); |
| } |
| |
| LogicVRegister Simulator::uminp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return UMinMaxP(vform, dst, src1, src2, false); |
| } |
| |
| LogicVRegister Simulator::UMinMaxV(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, bool max) { |
| uint64_t dst_val = max ? 0 : UINT64_MAX; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t src_val = src.Uint(vform, i); |
| if (max) { |
| dst_val = (src_val > dst_val) ? src_val : dst_val; |
| } else { |
| dst_val = (src_val < dst_val) ? src_val : dst_val; |
| } |
| } |
| dst.ClearForWrite(ScalarFormatFromFormat(vform)); |
| dst.SetUint(vform, 0, dst_val); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umaxv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| UMinMaxV(vform, dst, src, true); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uminv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| UMinMaxV(vform, dst, src, false); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::shl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp; |
| LogicVRegister shiftreg = dup_immediate(vform, temp, shift); |
| return ushl(vform, dst, src, shiftreg); |
| } |
| |
| LogicVRegister Simulator::sshll(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp1, temp2; |
| LogicVRegister shiftreg = dup_immediate(vform, temp1, shift); |
| LogicVRegister extendedreg = sxtl(vform, temp2, src); |
| return sshl(vform, dst, extendedreg, shiftreg); |
| } |
| |
| LogicVRegister Simulator::sshll2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp1, temp2; |
| LogicVRegister shiftreg = dup_immediate(vform, temp1, shift); |
| LogicVRegister extendedreg = sxtl2(vform, temp2, src); |
| return sshl(vform, dst, extendedreg, shiftreg); |
| } |
| |
| LogicVRegister Simulator::shll(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| int shift = LaneSizeInBitsFromFormat(vform) / 2; |
| return sshll(vform, dst, src, shift); |
| } |
| |
| LogicVRegister Simulator::shll2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| int shift = LaneSizeInBitsFromFormat(vform) / 2; |
| return sshll2(vform, dst, src, shift); |
| } |
| |
| LogicVRegister Simulator::ushll(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp1, temp2; |
| LogicVRegister shiftreg = dup_immediate(vform, temp1, shift); |
| LogicVRegister extendedreg = uxtl(vform, temp2, src); |
| return ushl(vform, dst, extendedreg, shiftreg); |
| } |
| |
| LogicVRegister Simulator::ushll2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp1, temp2; |
| LogicVRegister shiftreg = dup_immediate(vform, temp1, shift); |
| LogicVRegister extendedreg = uxtl2(vform, temp2, src); |
| return ushl(vform, dst, extendedreg, shiftreg); |
| } |
| |
| LogicVRegister Simulator::sli(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| dst.ClearForWrite(vform); |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; i++) { |
| uint64_t src_lane = src.Uint(vform, i); |
| uint64_t dst_lane = dst.Uint(vform, i); |
| uint64_t shifted = src_lane << shift; |
| uint64_t mask = MaxUintFromFormat(vform) << shift; |
| dst.SetUint(vform, i, (dst_lane & ~mask) | shifted); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sqshl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp; |
| LogicVRegister shiftreg = dup_immediate(vform, temp, shift); |
| return sshl(vform, dst, src, shiftreg).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::uqshl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp; |
| LogicVRegister shiftreg = dup_immediate(vform, temp, shift); |
| return ushl(vform, dst, src, shiftreg).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqshlu(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp; |
| LogicVRegister shiftreg = dup_immediate(vform, temp, shift); |
| return sshl(vform, dst, src, shiftreg).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sri(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| dst.ClearForWrite(vform); |
| int laneCount = LaneCountFromFormat(vform); |
| DCHECK((shift > 0) && |
| (shift <= static_cast<int>(LaneSizeInBitsFromFormat(vform)))); |
| for (int i = 0; i < laneCount; i++) { |
| uint64_t src_lane = src.Uint(vform, i); |
| uint64_t dst_lane = dst.Uint(vform, i); |
| uint64_t shifted; |
| uint64_t mask; |
| if (shift == 64) { |
| shifted = 0; |
| mask = 0; |
| } else { |
| shifted = src_lane >> shift; |
| mask = MaxUintFromFormat(vform) >> shift; |
| } |
| dst.SetUint(vform, i, (dst_lane & ~mask) | shifted); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ushr(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp; |
| LogicVRegister shiftreg = dup_immediate(vform, temp, -shift); |
| return ushl(vform, dst, src, shiftreg); |
| } |
| |
| LogicVRegister Simulator::sshr(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| DCHECK_GE(shift, 0); |
| SimVRegister temp; |
| LogicVRegister shiftreg = dup_immediate(vform, temp, -shift); |
| return sshl(vform, dst, src, shiftreg); |
| } |
| |
| LogicVRegister Simulator::ssra(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| LogicVRegister shifted_reg = sshr(vform, temp, src, shift); |
| return add(vform, dst, dst, shifted_reg); |
| } |
| |
| LogicVRegister Simulator::usra(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| LogicVRegister shifted_reg = ushr(vform, temp, src, shift); |
| return add(vform, dst, dst, shifted_reg); |
| } |
| |
| LogicVRegister Simulator::srsra(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| LogicVRegister shifted_reg = sshr(vform, temp, src, shift).Round(vform); |
| return add(vform, dst, dst, shifted_reg); |
| } |
| |
| LogicVRegister Simulator::ursra(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| LogicVRegister shifted_reg = ushr(vform, temp, src, shift).Round(vform); |
| return add(vform, dst, dst, shifted_reg); |
| } |
| |
| LogicVRegister Simulator::cls(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| uint64_t result[16]; |
| int laneSizeInBits = LaneSizeInBitsFromFormat(vform); |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; i++) { |
| result[i] = CountLeadingSignBits(src.Int(vform, i), laneSizeInBits); |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::clz(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| uint64_t result[16]; |
| int laneSizeInBits = LaneSizeInBitsFromFormat(vform); |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; i++) { |
| result[i] = CountLeadingZeros(src.Uint(vform, i), laneSizeInBits); |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::cnt(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| uint64_t result[16]; |
| int laneSizeInBits = LaneSizeInBitsFromFormat(vform); |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; i++) { |
| uint64_t value = src.Uint(vform, i); |
| result[i] = 0; |
| for (int j = 0; j < laneSizeInBits; j++) { |
| result[i] += (value & 1); |
| value >>= 1; |
| } |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sshl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| int8_t shift_val = src2.Int(vform, i); |
| int64_t lj_src_val = src1.IntLeftJustified(vform, i); |
| |
| // Set signed saturation state. |
| if ((shift_val > CountLeadingSignBits(lj_src_val, 64)) && |
| (lj_src_val != 0)) { |
| dst.SetSignedSat(i, lj_src_val >= 0); |
| } |
| |
| // Set unsigned saturation state. |
| if (lj_src_val < 0) { |
| dst.SetUnsignedSat(i, false); |
| } else if ((shift_val > CountLeadingZeros(lj_src_val, 64)) && |
| (lj_src_val != 0)) { |
| dst.SetUnsignedSat(i, true); |
| } |
| |
| int64_t src_val = src1.Int(vform, i); |
| bool src_is_negative = src_val < 0; |
| if (shift_val > 63) { |
| dst.SetInt(vform, i, 0); |
| } else if (shift_val < -63) { |
| dst.SetRounding(i, src_is_negative); |
| dst.SetInt(vform, i, src_is_negative ? -1 : 0); |
| } else { |
| // Use unsigned types for shifts, as behaviour is undefined for signed |
| // lhs. |
| uint64_t usrc_val = static_cast<uint64_t>(src_val); |
| |
| if (shift_val < 0) { |
| // Convert to right shift. |
| shift_val = -shift_val; |
| |
| // Set rounding state by testing most-significant bit shifted out. |
| // Rounding only needed on right shifts. |
| if (((usrc_val >> (shift_val - 1)) & 1) == 1) { |
| dst.SetRounding(i, true); |
| } |
| |
| usrc_val >>= shift_val; |
| |
| if (src_is_negative) { |
| // Simulate sign-extension. |
| usrc_val |= (~UINT64_C(0) << (64 - shift_val)); |
| } |
| } else { |
| usrc_val <<= shift_val; |
| } |
| dst.SetUint(vform, i, usrc_val); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ushl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| int8_t shift_val = src2.Int(vform, i); |
| uint64_t lj_src_val = src1.UintLeftJustified(vform, i); |
| |
| // Set saturation state. |
| if ((shift_val > CountLeadingZeros(lj_src_val, 64)) && (lj_src_val != 0)) { |
| dst.SetUnsignedSat(i, true); |
| } |
| |
| uint64_t src_val = src1.Uint(vform, i); |
| if ((shift_val > 63) || (shift_val < -64)) { |
| dst.SetUint(vform, i, 0); |
| } else { |
| if (shift_val < 0) { |
| // Set rounding state. Rounding only needed on right shifts. |
| if (((src_val >> (-shift_val - 1)) & 1) == 1) { |
| dst.SetRounding(i, true); |
| } |
| |
| if (shift_val == -64) { |
| src_val = 0; |
| } else { |
| src_val >>= -shift_val; |
| } |
| } else { |
| src_val <<= shift_val; |
| } |
| dst.SetUint(vform, i, src_val); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::neg(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| // Test for signed saturation. |
| int64_t sa = src.Int(vform, i); |
| if (sa == MinIntFromFormat(vform)) { |
| dst.SetSignedSat(i, true); |
| } |
| dst.SetInt(vform, i, (sa == INT64_MIN) ? sa : -sa); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::suqadd(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| int64_t sa = dst.IntLeftJustified(vform, i); |
| uint64_t ub = src.UintLeftJustified(vform, i); |
| uint64_t ur = sa + ub; |
| |
| int64_t sr = bit_cast<int64_t>(ur); |
| if (sr < sa) { // Test for signed positive saturation. |
| dst.SetInt(vform, i, MaxIntFromFormat(vform)); |
| } else { |
| dst.SetUint(vform, i, dst.Int(vform, i) + src.Uint(vform, i)); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::usqadd(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t ua = dst.UintLeftJustified(vform, i); |
| int64_t sb = src.IntLeftJustified(vform, i); |
| uint64_t ur = ua + sb; |
| |
| if ((sb > 0) && (ur <= ua)) { |
| dst.SetUint(vform, i, MaxUintFromFormat(vform)); // Positive saturation. |
| } else if ((sb < 0) && (ur >= ua)) { |
| dst.SetUint(vform, i, 0); // Negative saturation. |
| } else { |
| dst.SetUint(vform, i, dst.Uint(vform, i) + src.Int(vform, i)); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::abs(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| // Test for signed saturation. |
| int64_t sa = src.Int(vform, i); |
| if (sa == MinIntFromFormat(vform)) { |
| dst.SetSignedSat(i, true); |
| } |
| if (sa < 0) { |
| dst.SetInt(vform, i, (sa == INT64_MIN) ? sa : -sa); |
| } else { |
| dst.SetInt(vform, i, sa); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ExtractNarrow(VectorFormat dstform, |
| LogicVRegister dst, bool dstIsSigned, |
| const LogicVRegister& src, |
| bool srcIsSigned) { |
| bool upperhalf = false; |
| VectorFormat srcform = kFormatUndefined; |
| int64_t ssrc[8]; |
| uint64_t usrc[8]; |
| |
| switch (dstform) { |
| case kFormat8B: |
| upperhalf = false; |
| srcform = kFormat8H; |
| break; |
| case kFormat16B: |
| upperhalf = true; |
| srcform = kFormat8H; |
| break; |
| case kFormat4H: |
| upperhalf = false; |
| srcform = kFormat4S; |
| break; |
| case kFormat8H: |
| upperhalf = true; |
| srcform = kFormat4S; |
| break; |
| case kFormat2S: |
| upperhalf = false; |
| srcform = kFormat2D; |
| break; |
| case kFormat4S: |
| upperhalf = true; |
| srcform = kFormat2D; |
| break; |
| case kFormatB: |
| upperhalf = false; |
| srcform = kFormatH; |
| break; |
| case kFormatH: |
| upperhalf = false; |
| srcform = kFormatS; |
| break; |
| case kFormatS: |
| upperhalf = false; |
| srcform = kFormatD; |
| break; |
| default: |
| UNIMPLEMENTED(); |
| } |
| |
| for (int i = 0; i < LaneCountFromFormat(srcform); i++) { |
| ssrc[i] = src.Int(srcform, i); |
| usrc[i] = src.Uint(srcform, i); |
| } |
| |
| int offset; |
| if (upperhalf) { |
| offset = LaneCountFromFormat(dstform) / 2; |
| } else { |
| offset = 0; |
| dst.ClearForWrite(dstform); |
| } |
| |
| for (int i = 0; i < LaneCountFromFormat(srcform); i++) { |
| // Test for signed saturation |
| if (ssrc[i] > MaxIntFromFormat(dstform)) { |
| dst.SetSignedSat(offset + i, true); |
| } else if (ssrc[i] < MinIntFromFormat(dstform)) { |
| dst.SetSignedSat(offset + i, false); |
| } |
| |
| // Test for unsigned saturation |
| if (srcIsSigned) { |
| if (ssrc[i] > static_cast<int64_t>(MaxUintFromFormat(dstform))) { |
| dst.SetUnsignedSat(offset + i, true); |
| } else if (ssrc[i] < 0) { |
| dst.SetUnsignedSat(offset + i, false); |
| } |
| } else { |
| if (usrc[i] > MaxUintFromFormat(dstform)) { |
| dst.SetUnsignedSat(offset + i, true); |
| } |
| } |
| |
| int64_t result; |
| if (srcIsSigned) { |
| result = ssrc[i] & MaxUintFromFormat(dstform); |
| } else { |
| result = usrc[i] & MaxUintFromFormat(dstform); |
| } |
| |
| if (dstIsSigned) { |
| dst.SetInt(dstform, offset + i, result); |
| } else { |
| dst.SetUint(dstform, offset + i, result); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::xtn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return ExtractNarrow(vform, dst, true, src, true); |
| } |
| |
| LogicVRegister Simulator::sqxtn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return ExtractNarrow(vform, dst, true, src, true).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqxtun(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return ExtractNarrow(vform, dst, false, src, true).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::uqxtn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return ExtractNarrow(vform, dst, false, src, false).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::AbsDiff(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, bool issigned) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| if (issigned) { |
| int64_t sr = src1.Int(vform, i) - src2.Int(vform, i); |
| sr = sr > 0 ? sr : -sr; |
| dst.SetInt(vform, i, sr); |
| } else { |
| int64_t sr = src1.Uint(vform, i) - src2.Uint(vform, i); |
| sr = sr > 0 ? sr : -sr; |
| dst.SetUint(vform, i, sr); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::saba(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| dst.ClearForWrite(vform); |
| AbsDiff(vform, temp, src1, src2, true); |
| add(vform, dst, dst, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uaba(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| dst.ClearForWrite(vform); |
| AbsDiff(vform, temp, src1, src2, false); |
| add(vform, dst, dst, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::not_(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, ~src.Uint(vform, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::rbit(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| int laneSizeInBits = LaneSizeInBitsFromFormat(vform); |
| uint64_t reversed_value; |
| uint64_t value; |
| for (int i = 0; i < laneCount; i++) { |
| value = src.Uint(vform, i); |
| reversed_value = 0; |
| for (int j = 0; j < laneSizeInBits; j++) { |
| reversed_value = (reversed_value << 1) | (value & 1); |
| value >>= 1; |
| } |
| result[i] = reversed_value; |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::rev(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int revSize) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| int laneSize = LaneSizeInBytesFromFormat(vform); |
| int lanesPerLoop = revSize / laneSize; |
| for (int i = 0; i < laneCount; i += lanesPerLoop) { |
| for (int j = 0; j < lanesPerLoop; j++) { |
| result[i + lanesPerLoop - 1 - j] = src.Uint(vform, i + j); |
| } |
| } |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::rev16(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return rev(vform, dst, src, 2); |
| } |
| |
| LogicVRegister Simulator::rev32(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return rev(vform, dst, src, 4); |
| } |
| |
| LogicVRegister Simulator::rev64(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return rev(vform, dst, src, 8); |
| } |
| |
| LogicVRegister Simulator::addlp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, bool is_signed, |
| bool do_accumulate) { |
| VectorFormat vformsrc = VectorFormatHalfWidthDoubleLanes(vform); |
| DCHECK_LE(LaneSizeInBitsFromFormat(vformsrc), 32U); |
| DCHECK_LE(LaneCountFromFormat(vform), 8); |
| |
| uint64_t result[8]; |
| int lane_count = LaneCountFromFormat(vform); |
| for (int i = 0; i < lane_count; i++) { |
| if (is_signed) { |
| result[i] = static_cast<uint64_t>(src.Int(vformsrc, 2 * i) + |
| src.Int(vformsrc, 2 * i + 1)); |
| } else { |
| result[i] = src.Uint(vformsrc, 2 * i) + src.Uint(vformsrc, 2 * i + 1); |
| } |
| } |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < lane_count; ++i) { |
| if (do_accumulate) { |
| result[i] += dst.Uint(vform, i); |
| } |
| dst.SetUint(vform, i, result[i]); |
| } |
| |
| return dst; |
| } |
| |
| LogicVRegister Simulator::saddlp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return addlp(vform, dst, src, true, false); |
| } |
| |
| LogicVRegister Simulator::uaddlp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return addlp(vform, dst, src, false, false); |
| } |
| |
| LogicVRegister Simulator::sadalp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return addlp(vform, dst, src, true, true); |
| } |
| |
| LogicVRegister Simulator::uadalp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return addlp(vform, dst, src, false, true); |
| } |
| |
| LogicVRegister Simulator::ext(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| uint8_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount - index; ++i) { |
| result[i] = src1.Uint(vform, i + index); |
| } |
| for (int i = 0; i < index; ++i) { |
| result[laneCount - index + i] = src2.Uint(vform, i); |
| } |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| dst.SetUint(vform, i, result[i]); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::dup_element(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, |
| int src_index) { |
| int laneCount = LaneCountFromFormat(vform); |
| uint64_t value = src.Uint(vform, src_index); |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| dst.SetUint(vform, i, value); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::dup_immediate(VectorFormat vform, LogicVRegister dst, |
| uint64_t imm) { |
| int laneCount = LaneCountFromFormat(vform); |
| uint64_t value = imm & MaxUintFromFormat(vform); |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| dst.SetUint(vform, i, value); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ins_element(VectorFormat vform, LogicVRegister dst, |
| int dst_index, const LogicVRegister& src, |
| int src_index) { |
| dst.SetUint(vform, dst_index, src.Uint(vform, src_index)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ins_immediate(VectorFormat vform, LogicVRegister dst, |
| int dst_index, uint64_t imm) { |
| uint64_t value = imm & MaxUintFromFormat(vform); |
| dst.SetUint(vform, dst_index, value); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::movi(VectorFormat vform, LogicVRegister dst, |
| uint64_t imm) { |
| int laneCount = LaneCountFromFormat(vform); |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| dst.SetUint(vform, i, imm); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::mvni(VectorFormat vform, LogicVRegister dst, |
| uint64_t imm) { |
| int laneCount = LaneCountFromFormat(vform); |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| dst.SetUint(vform, i, ~imm); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::orr(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, uint64_t imm) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| result[i] = src.Uint(vform, i) | imm; |
| } |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uxtl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| VectorFormat vform_half = VectorFormatHalfWidth(vform); |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetUint(vform, i, src.Uint(vform_half, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sxtl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| VectorFormat vform_half = VectorFormatHalfWidth(vform); |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetInt(vform, i, src.Int(vform_half, i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uxtl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| VectorFormat vform_half = VectorFormatHalfWidth(vform); |
| int lane_count = LaneCountFromFormat(vform); |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < lane_count; i++) { |
| dst.SetUint(vform, i, src.Uint(vform_half, lane_count + i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sxtl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| VectorFormat vform_half = VectorFormatHalfWidth(vform); |
| int lane_count = LaneCountFromFormat(vform); |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < lane_count; i++) { |
| dst.SetInt(vform, i, src.Int(vform_half, lane_count + i)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::shrn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vform_src = VectorFormatDoubleWidth(vform); |
| VectorFormat vform_dst = vform; |
| LogicVRegister shifted_src = ushr(vform_src, temp, src, shift); |
| return ExtractNarrow(vform_dst, dst, false, shifted_src, false); |
| } |
| |
| LogicVRegister Simulator::shrn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = ushr(vformsrc, temp, src, shift); |
| return ExtractNarrow(vformdst, dst, false, shifted_src, false); |
| } |
| |
| LogicVRegister Simulator::rshrn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(vform); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = ushr(vformsrc, temp, src, shift).Round(vformsrc); |
| return ExtractNarrow(vformdst, dst, false, shifted_src, false); |
| } |
| |
| LogicVRegister Simulator::rshrn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = ushr(vformsrc, temp, src, shift).Round(vformsrc); |
| return ExtractNarrow(vformdst, dst, false, shifted_src, false); |
| } |
| |
| LogicVRegister Simulator::Table(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& ind, |
| bool zero_out_of_bounds, |
| const LogicVRegister* tab1, |
| const LogicVRegister* tab2, |
| const LogicVRegister* tab3, |
| const LogicVRegister* tab4) { |
| DCHECK_NOT_NULL(tab1); |
| const LogicVRegister* tab[4] = {tab1, tab2, tab3, tab4}; |
| uint64_t result[kMaxLanesPerVector]; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| result[i] = zero_out_of_bounds ? 0 : dst.Uint(kFormat16B, i); |
| } |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| uint64_t j = ind.Uint(vform, i); |
| int tab_idx = static_cast<int>(j >> 4); |
| int j_idx = static_cast<int>(j & 15); |
| if ((tab_idx < 4) && (tab[tab_idx] != nullptr)) { |
| result[i] = tab[tab_idx]->Uint(kFormat16B, j_idx); |
| } |
| } |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::tbl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, true, &tab); |
| } |
| |
| LogicVRegister Simulator::tbl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& tab2, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, true, &tab, &tab2); |
| } |
| |
| LogicVRegister Simulator::tbl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& tab2, |
| const LogicVRegister& tab3, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, true, &tab, &tab2, &tab3); |
| } |
| |
| LogicVRegister Simulator::tbl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& tab2, |
| const LogicVRegister& tab3, |
| const LogicVRegister& tab4, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, true, &tab, &tab2, &tab3, &tab4); |
| } |
| |
| LogicVRegister Simulator::tbx(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, false, &tab); |
| } |
| |
| LogicVRegister Simulator::tbx(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& tab2, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, false, &tab, &tab2); |
| } |
| |
| LogicVRegister Simulator::tbx(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& tab2, |
| const LogicVRegister& tab3, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, false, &tab, &tab2, &tab3); |
| } |
| |
| LogicVRegister Simulator::tbx(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& tab, |
| const LogicVRegister& tab2, |
| const LogicVRegister& tab3, |
| const LogicVRegister& tab4, |
| const LogicVRegister& ind) { |
| return Table(vform, dst, ind, false, &tab, &tab2, &tab3, &tab4); |
| } |
| |
| LogicVRegister Simulator::uqshrn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| return shrn(vform, dst, src, shift).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::uqshrn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| return shrn2(vform, dst, src, shift).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::uqrshrn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| return rshrn(vform, dst, src, shift).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::uqrshrn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| return rshrn2(vform, dst, src, shift).UnsignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqshrn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(vform); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift); |
| return sqxtn(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::sqshrn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift); |
| return sqxtn(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::sqrshrn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(vform); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift).Round(vformsrc); |
| return sqxtn(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::sqrshrn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift).Round(vformsrc); |
| return sqxtn(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::sqshrun(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(vform); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift); |
| return sqxtun(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::sqshrun2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift); |
| return sqxtun(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::sqrshrun(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(vform); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift).Round(vformsrc); |
| return sqxtun(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::sqrshrun2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int shift) { |
| SimVRegister temp; |
| VectorFormat vformsrc = VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)); |
| VectorFormat vformdst = vform; |
| LogicVRegister shifted_src = sshr(vformsrc, temp, src, shift).Round(vformsrc); |
| return sqxtun(vformdst, dst, shifted_src); |
| } |
| |
| LogicVRegister Simulator::uaddl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl(vform, temp1, src1); |
| uxtl(vform, temp2, src2); |
| add(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uaddl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl2(vform, temp1, src1); |
| uxtl2(vform, temp2, src2); |
| add(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uaddw(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| uxtl(vform, temp, src2); |
| add(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uaddw2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| uxtl2(vform, temp, src2); |
| add(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::saddl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl(vform, temp1, src1); |
| sxtl(vform, temp2, src2); |
| add(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::saddl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl2(vform, temp1, src1); |
| sxtl2(vform, temp2, src2); |
| add(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::saddw(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sxtl(vform, temp, src2); |
| add(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::saddw2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sxtl2(vform, temp, src2); |
| add(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::usubl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl(vform, temp1, src1); |
| uxtl(vform, temp2, src2); |
| sub(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::usubl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl2(vform, temp1, src1); |
| uxtl2(vform, temp2, src2); |
| sub(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::usubw(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| uxtl(vform, temp, src2); |
| sub(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::usubw2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| uxtl2(vform, temp, src2); |
| sub(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ssubl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl(vform, temp1, src1); |
| sxtl(vform, temp2, src2); |
| sub(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ssubl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl2(vform, temp1, src1); |
| sxtl2(vform, temp2, src2); |
| sub(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ssubw(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sxtl(vform, temp, src2); |
| sub(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ssubw2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sxtl2(vform, temp, src2); |
| sub(vform, dst, src1, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uabal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl(vform, temp1, src1); |
| uxtl(vform, temp2, src2); |
| uaba(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uabal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl2(vform, temp1, src1); |
| uxtl2(vform, temp2, src2); |
| uaba(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sabal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl(vform, temp1, src1); |
| sxtl(vform, temp2, src2); |
| saba(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sabal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl2(vform, temp1, src1); |
| sxtl2(vform, temp2, src2); |
| saba(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uabdl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl(vform, temp1, src1); |
| uxtl(vform, temp2, src2); |
| AbsDiff(vform, dst, temp1, temp2, false); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uabdl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl2(vform, temp1, src1); |
| uxtl2(vform, temp2, src2); |
| AbsDiff(vform, dst, temp1, temp2, false); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sabdl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl(vform, temp1, src1); |
| sxtl(vform, temp2, src2); |
| AbsDiff(vform, dst, temp1, temp2, true); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sabdl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl2(vform, temp1, src1); |
| sxtl2(vform, temp2, src2); |
| AbsDiff(vform, dst, temp1, temp2, true); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umull(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl(vform, temp1, src1); |
| uxtl(vform, temp2, src2); |
| mul(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umull2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl2(vform, temp1, src1); |
| uxtl2(vform, temp2, src2); |
| mul(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smull(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl(vform, temp1, src1); |
| sxtl(vform, temp2, src2); |
| mul(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smull2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl2(vform, temp1, src1); |
| sxtl2(vform, temp2, src2); |
| mul(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umlsl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl(vform, temp1, src1); |
| uxtl(vform, temp2, src2); |
| mls(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umlsl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl2(vform, temp1, src1); |
| uxtl2(vform, temp2, src2); |
| mls(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smlsl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl(vform, temp1, src1); |
| sxtl(vform, temp2, src2); |
| mls(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smlsl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl2(vform, temp1, src1); |
| sxtl2(vform, temp2, src2); |
| mls(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umlal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl(vform, temp1, src1); |
| uxtl(vform, temp2, src2); |
| mla(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::umlal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| uxtl2(vform, temp1, src1); |
| uxtl2(vform, temp2, src2); |
| mla(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smlal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl(vform, temp1, src1); |
| sxtl(vform, temp2, src2); |
| mla(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::smlal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp1, temp2; |
| sxtl2(vform, temp1, src1); |
| sxtl2(vform, temp2, src2); |
| mla(vform, dst, temp1, temp2); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sqdmlal(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| LogicVRegister product = sqdmull(vform, temp, src1, src2); |
| return add(vform, dst, dst, product).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqdmlal2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| LogicVRegister product = sqdmull2(vform, temp, src1, src2); |
| return add(vform, dst, dst, product).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqdmlsl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| LogicVRegister product = sqdmull(vform, temp, src1, src2); |
| return sub(vform, dst, dst, product).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqdmlsl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| LogicVRegister product = sqdmull2(vform, temp, src1, src2); |
| return sub(vform, dst, dst, product).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqdmull(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| LogicVRegister product = smull(vform, temp, src1, src2); |
| return add(vform, dst, product, product).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqdmull2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| LogicVRegister product = smull2(vform, temp, src1, src2); |
| return add(vform, dst, product, product).SignedSaturate(vform); |
| } |
| |
| LogicVRegister Simulator::sqrdmulh(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, bool round) { |
| // 2 * INT_32_MIN * INT_32_MIN causes int64_t to overflow. |
| // To avoid this, we use (src1 * src2 + 1 << (esize - 2)) >> (esize - 1) |
| // which is same as (2 * src1 * src2 + 1 << (esize - 1)) >> esize. |
| |
| int esize = LaneSizeInBitsFromFormat(vform); |
| int round_const = round ? (1 << (esize - 2)) : 0; |
| int64_t product; |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| product = src1.Int(vform, i) * src2.Int(vform, i); |
| product += round_const; |
| product = product >> (esize - 1); |
| |
| if (product > MaxIntFromFormat(vform)) { |
| product = MaxIntFromFormat(vform); |
| } else if (product < MinIntFromFormat(vform)) { |
| product = MinIntFromFormat(vform); |
| } |
| dst.SetInt(vform, i, product); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::sqdmulh(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| return sqrdmulh(vform, dst, src1, src2, false); |
| } |
| |
| LogicVRegister Simulator::addhn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| add(VectorFormatDoubleWidth(vform), temp, src1, src2); |
| shrn(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::addhn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| add(VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)), temp, src1, src2); |
| shrn2(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::raddhn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| add(VectorFormatDoubleWidth(vform), temp, src1, src2); |
| rshrn(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::raddhn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| add(VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)), temp, src1, src2); |
| rshrn2(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::subhn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sub(VectorFormatDoubleWidth(vform), temp, src1, src2); |
| shrn(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::subhn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sub(VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)), temp, src1, src2); |
| shrn2(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::rsubhn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sub(VectorFormatDoubleWidth(vform), temp, src1, src2); |
| rshrn(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::rsubhn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| sub(VectorFormatDoubleWidth(VectorFormatHalfLanes(vform)), temp, src1, src2); |
| rshrn2(vform, dst, temp, LaneSizeInBitsFromFormat(vform)); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::trn1(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| int pairs = laneCount / 2; |
| for (int i = 0; i < pairs; ++i) { |
| result[2 * i] = src1.Uint(vform, 2 * i); |
| result[(2 * i) + 1] = src2.Uint(vform, 2 * i); |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::trn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| int pairs = laneCount / 2; |
| for (int i = 0; i < pairs; ++i) { |
| result[2 * i] = src1.Uint(vform, (2 * i) + 1); |
| result[(2 * i) + 1] = src2.Uint(vform, (2 * i) + 1); |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::zip1(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| int pairs = laneCount / 2; |
| for (int i = 0; i < pairs; ++i) { |
| result[2 * i] = src1.Uint(vform, i); |
| result[(2 * i) + 1] = src2.Uint(vform, i); |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::zip2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| uint64_t result[16]; |
| int laneCount = LaneCountFromFormat(vform); |
| int pairs = laneCount / 2; |
| for (int i = 0; i < pairs; ++i) { |
| result[2 * i] = src1.Uint(vform, pairs + i); |
| result[(2 * i) + 1] = src2.Uint(vform, pairs + i); |
| } |
| |
| dst.SetUintArray(vform, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uzp1(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| uint64_t result[32]; |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| result[i] = src1.Uint(vform, i); |
| result[laneCount + i] = src2.Uint(vform, i); |
| } |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| dst.SetUint(vform, i, result[2 * i]); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::uzp2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| uint64_t result[32]; |
| int laneCount = LaneCountFromFormat(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| result[i] = src1.Uint(vform, i); |
| result[laneCount + i] = src2.Uint(vform, i); |
| } |
| |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < laneCount; ++i) { |
| dst.SetUint(vform, i, result[(2 * i) + 1]); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| T Simulator::FPAdd(T op1, T op2) { |
| T result = FPProcessNaNs(op1, op2); |
| if (std::isnan(result)) return result; |
| |
| if (std::isinf(op1) && std::isinf(op2) && (op1 != op2)) { |
| // inf + -inf returns the default NaN. |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } else { |
| // Other cases should be handled by standard arithmetic. |
| return op1 + op2; |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPSub(T op1, T op2) { |
| // NaNs should be handled elsewhere. |
| DCHECK(!std::isnan(op1) && !std::isnan(op2)); |
| |
| if (std::isinf(op1) && std::isinf(op2) && (op1 == op2)) { |
| // inf - inf returns the default NaN. |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } else { |
| // Other cases should be handled by standard arithmetic. |
| return op1 - op2; |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPMul(T op1, T op2) { |
| // NaNs should be handled elsewhere. |
| DCHECK(!std::isnan(op1) && !std::isnan(op2)); |
| |
| if ((std::isinf(op1) && (op2 == 0.0)) || (std::isinf(op2) && (op1 == 0.0))) { |
| // inf * 0.0 returns the default NaN. |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } else { |
| // Other cases should be handled by standard arithmetic. |
| return op1 * op2; |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPMulx(T op1, T op2) { |
| if ((std::isinf(op1) && (op2 == 0.0)) || (std::isinf(op2) && (op1 == 0.0))) { |
| // inf * 0.0 returns +/-2.0. |
| T two = 2.0; |
| return std::copysign(1.0, op1) * std::copysign(1.0, op2) * two; |
| } |
| return FPMul(op1, op2); |
| } |
| |
| template <typename T> |
| T Simulator::FPMulAdd(T a, T op1, T op2) { |
| T result = FPProcessNaNs3(a, op1, op2); |
| |
| T sign_a = std::copysign(1.0, a); |
| T sign_prod = std::copysign(1.0, op1) * std::copysign(1.0, op2); |
| bool isinf_prod = std::isinf(op1) || std::isinf(op2); |
| bool operation_generates_nan = |
| (std::isinf(op1) && (op2 == 0.0)) || // inf * 0.0 |
| (std::isinf(op2) && (op1 == 0.0)) || // 0.0 * inf |
| (std::isinf(a) && isinf_prod && (sign_a != sign_prod)); // inf - inf |
| |
| if (std::isnan(result)) { |
| // Generated NaNs override quiet NaNs propagated from a. |
| if (operation_generates_nan && IsQuietNaN(a)) { |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } else { |
| return result; |
| } |
| } |
| |
| // If the operation would produce a NaN, return the default NaN. |
| if (operation_generates_nan) { |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } |
| |
| // Work around broken fma implementations for exact zero results: The sign of |
| // exact 0.0 results is positive unless both a and op1 * op2 are negative. |
| if (((op1 == 0.0) || (op2 == 0.0)) && (a == 0.0)) { |
| return ((sign_a < 0) && (sign_prod < 0)) ? -0.0 : 0.0; |
| } |
| |
| result = FusedMultiplyAdd(op1, op2, a); |
| DCHECK(!std::isnan(result)); |
| |
| // Work around broken fma implementations for rounded zero results: If a is |
| // 0.0, the sign of the result is the sign of op1 * op2 before rounding. |
| if ((a == 0.0) && (result == 0.0)) { |
| return std::copysign(0.0, sign_prod); |
| } |
| |
| return result; |
| } |
| |
| template <typename T> |
| T Simulator::FPDiv(T op1, T op2) { |
| // NaNs should be handled elsewhere. |
| DCHECK(!std::isnan(op1) && !std::isnan(op2)); |
| |
| if ((std::isinf(op1) && std::isinf(op2)) || ((op1 == 0.0) && (op2 == 0.0))) { |
| // inf / inf and 0.0 / 0.0 return the default NaN. |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } else { |
| if (op2 == 0.0) { |
| FPProcessException(); |
| if (!std::isnan(op1)) { |
| double op1_sign = std::copysign(1.0, op1); |
| double op2_sign = std::copysign(1.0, op2); |
| return static_cast<T>(op1_sign * op2_sign * kFP64PositiveInfinity); |
| } |
| } |
| |
| // Other cases should be handled by standard arithmetic. |
| return op1 / op2; |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPSqrt(T op) { |
| if (std::isnan(op)) { |
| return FPProcessNaN(op); |
| } else if (op < 0.0) { |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } else { |
| return std::sqrt(op); |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPMax(T a, T b) { |
| T result = FPProcessNaNs(a, b); |
| if (std::isnan(result)) return result; |
| |
| if ((a == 0.0) && (b == 0.0) && |
| (std::copysign(1.0, a) != std::copysign(1.0, b))) { |
| // a and b are zero, and the sign differs: return +0.0. |
| return 0.0; |
| } else { |
| return (a > b) ? a : b; |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPMaxNM(T a, T b) { |
| if (IsQuietNaN(a) && !IsQuietNaN(b)) { |
| a = kFP64NegativeInfinity; |
| } else if (!IsQuietNaN(a) && IsQuietNaN(b)) { |
| b = kFP64NegativeInfinity; |
| } |
| |
| T result = FPProcessNaNs(a, b); |
| return std::isnan(result) ? result : FPMax(a, b); |
| } |
| |
| template <typename T> |
| T Simulator::FPMin(T a, T b) { |
| T result = FPProcessNaNs(a, b); |
| if (std::isnan(result)) return result; |
| |
| if ((a == 0.0) && (b == 0.0) && |
| (std::copysign(1.0, a) != std::copysign(1.0, b))) { |
| // a and b are zero, and the sign differs: return -0.0. |
| return -0.0; |
| } else { |
| return (a < b) ? a : b; |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPMinNM(T a, T b) { |
| if (IsQuietNaN(a) && !IsQuietNaN(b)) { |
| a = kFP64PositiveInfinity; |
| } else if (!IsQuietNaN(a) && IsQuietNaN(b)) { |
| b = kFP64PositiveInfinity; |
| } |
| |
| T result = FPProcessNaNs(a, b); |
| return std::isnan(result) ? result : FPMin(a, b); |
| } |
| |
| template <typename T> |
| T Simulator::FPRecipStepFused(T op1, T op2) { |
| const T two = 2.0; |
| if ((std::isinf(op1) && (op2 == 0.0)) || |
| ((op1 == 0.0) && (std::isinf(op2)))) { |
| return two; |
| } else if (std::isinf(op1) || std::isinf(op2)) { |
| // Return +inf if signs match, otherwise -inf. |
| return ((op1 >= 0.0) == (op2 >= 0.0)) ? kFP64PositiveInfinity |
| : kFP64NegativeInfinity; |
| } else { |
| return FusedMultiplyAdd(op1, op2, two); |
| } |
| } |
| |
| template <typename T> |
| T Simulator::FPRSqrtStepFused(T op1, T op2) { |
| const T one_point_five = 1.5; |
| const T two = 2.0; |
| |
| if ((std::isinf(op1) && (op2 == 0.0)) || |
| ((op1 == 0.0) && (std::isinf(op2)))) { |
| return one_point_five; |
| } else if (std::isinf(op1) || std::isinf(op2)) { |
| // Return +inf if signs match, otherwise -inf. |
| return ((op1 >= 0.0) == (op2 >= 0.0)) ? kFP64PositiveInfinity |
| : kFP64NegativeInfinity; |
| } else { |
| // The multiply-add-halve operation must be fully fused, so avoid interim |
| // rounding by checking which operand can be losslessly divided by two |
| // before doing the multiply-add. |
| if (std::isnormal(op1 / two)) { |
| return FusedMultiplyAdd(op1 / two, op2, one_point_five); |
| } else if (std::isnormal(op2 / two)) { |
| return FusedMultiplyAdd(op1, op2 / two, one_point_five); |
| } else { |
| // Neither operand is normal after halving: the result is dominated by |
| // the addition term, so just return that. |
| return one_point_five; |
| } |
| } |
| } |
| |
| double Simulator::FPRoundInt(double value, FPRounding round_mode) { |
| if ((value == 0.0) || (value == kFP64PositiveInfinity) || |
| (value == kFP64NegativeInfinity)) { |
| return value; |
| } else if (std::isnan(value)) { |
| return FPProcessNaN(value); |
| } |
| |
| double int_result = std::floor(value); |
| double error = value - int_result; |
| switch (round_mode) { |
| case FPTieAway: { |
| // Take care of correctly handling the range ]-0.5, -0.0], which must |
| // yield -0.0. |
| if ((-0.5 < value) && (value < 0.0)) { |
| int_result = -0.0; |
| |
| } else if ((error > 0.5) || ((error == 0.5) && (int_result >= 0.0))) { |
| // If the error is greater than 0.5, or is equal to 0.5 and the integer |
| // result is positive, round up. |
| int_result++; |
| } |
| break; |
| } |
| case FPTieEven: { |
| // Take care of correctly handling the range [-0.5, -0.0], which must |
| // yield -0.0. |
| if ((-0.5 <= value) && (value < 0.0)) { |
| int_result = -0.0; |
| |
| // If the error is greater than 0.5, or is equal to 0.5 and the integer |
| // result is odd, round up. |
| } else if ((error > 0.5) || |
| ((error == 0.5) && (std::fmod(int_result, 2) != 0))) { |
| int_result++; |
| } |
| break; |
| } |
| case FPZero: { |
| // If value>0 then we take floor(value) |
| // otherwise, ceil(value). |
| if (value < 0) { |
| int_result = ceil(value); |
| } |
| break; |
| } |
| case FPNegativeInfinity: { |
| // We always use floor(value). |
| break; |
| } |
| case FPPositiveInfinity: { |
| // Take care of correctly handling the range ]-1.0, -0.0], which must |
| // yield -0.0. |
| if ((-1.0 < value) && (value < 0.0)) { |
| int_result = -0.0; |
| |
| // If the error is non-zero, round up. |
| } else if (error > 0.0) { |
| int_result++; |
| } |
| break; |
| } |
| default: |
| UNIMPLEMENTED(); |
| } |
| return int_result; |
| } |
| |
| int32_t Simulator::FPToInt32(double value, FPRounding rmode) { |
| value = FPRoundInt(value, rmode); |
| if (value >= kWMaxInt) { |
| return kWMaxInt; |
| } else if (value < kWMinInt) { |
| return kWMinInt; |
| } |
| return std::isnan(value) ? 0 : static_cast<int32_t>(value); |
| } |
| |
| int64_t Simulator::FPToInt64(double value, FPRounding rmode) { |
| value = FPRoundInt(value, rmode); |
| if (value >= kXMaxInt) { |
| return kXMaxInt; |
| } else if (value < kXMinInt) { |
| return kXMinInt; |
| } |
| return std::isnan(value) ? 0 : static_cast<int64_t>(value); |
| } |
| |
| uint32_t Simulator::FPToUInt32(double value, FPRounding rmode) { |
| value = FPRoundInt(value, rmode); |
| if (value >= kWMaxUInt) { |
| return kWMaxUInt; |
| } else if (value < 0.0) { |
| return 0; |
| } |
| return std::isnan(value) ? 0 : static_cast<uint32_t>(value); |
| } |
| |
| uint64_t Simulator::FPToUInt64(double value, FPRounding rmode) { |
| value = FPRoundInt(value, rmode); |
| if (value >= kXMaxUInt) { |
| return kXMaxUInt; |
| } else if (value < 0.0) { |
| return 0; |
| } |
| return std::isnan(value) ? 0 : static_cast<uint64_t>(value); |
| } |
| |
| #define DEFINE_NEON_FP_VECTOR_OP(FN, OP, PROCNAN) \ |
| template <typename T> \ |
| LogicVRegister Simulator::FN(VectorFormat vform, LogicVRegister dst, \ |
| const LogicVRegister& src1, \ |
| const LogicVRegister& src2) { \ |
| dst.ClearForWrite(vform); \ |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { \ |
| T op1 = src1.Float<T>(i); \ |
| T op2 = src2.Float<T>(i); \ |
| T result; \ |
| if (PROCNAN) { \ |
| result = FPProcessNaNs(op1, op2); \ |
| if (!std::isnan(result)) { \ |
| result = OP(op1, op2); \ |
| } \ |
| } else { \ |
| result = OP(op1, op2); \ |
| } \ |
| dst.SetFloat(i, result); \ |
| } \ |
| return dst; \ |
| } \ |
| \ |
| LogicVRegister Simulator::FN(VectorFormat vform, LogicVRegister dst, \ |
| const LogicVRegister& src1, \ |
| const LogicVRegister& src2) { \ |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { \ |
| FN<float>(vform, dst, src1, src2); \ |
| } else { \ |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); \ |
| FN<double>(vform, dst, src1, src2); \ |
| } \ |
| return dst; \ |
| } |
| NEON_FP3SAME_LIST(DEFINE_NEON_FP_VECTOR_OP) |
| #undef DEFINE_NEON_FP_VECTOR_OP |
| |
| LogicVRegister Simulator::fnmul(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| LogicVRegister product = fmul(vform, temp, src1, src2); |
| return fneg(vform, dst, product); |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::frecps(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| T op1 = -src1.Float<T>(i); |
| T op2 = src2.Float<T>(i); |
| T result = FPProcessNaNs(op1, op2); |
| dst.SetFloat(i, std::isnan(result) ? result : FPRecipStepFused(op1, op2)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::frecps(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| frecps<float>(vform, dst, src1, src2); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| frecps<double>(vform, dst, src1, src2); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::frsqrts(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| T op1 = -src1.Float<T>(i); |
| T op2 = src2.Float<T>(i); |
| T result = FPProcessNaNs(op1, op2); |
| dst.SetFloat(i, std::isnan(result) ? result : FPRSqrtStepFused(op1, op2)); |
| } |
| return dst; |
| } |
| |
| int32_t Simulator::FPToFixedJS(double value) { |
| // The Z-flag is set when the conversion from double precision floating-point |
| // to 32-bit integer is exact. If the source value is +/-Infinity, -0.0, NaN, |
| // outside the bounds of a 32-bit integer, or isn't an exact integer then the |
| // Z-flag is unset. |
| int Z = 1; |
| int32_t result; |
| if ((value == 0.0) || (value == kFP64PositiveInfinity) || |
| (value == kFP64NegativeInfinity)) { |
| // +/- zero and infinity all return zero, however -0 and +/- Infinity also |
| // unset the Z-flag. |
| result = 0.0; |
| if ((value != 0.0) || std::signbit(value)) { |
| Z = 0; |
| } |
| } else if (std::isnan(value)) { |
| // NaN values unset the Z-flag and set the result to 0. |
| result = 0; |
| Z = 0; |
| } else { |
| // All other values are converted to an integer representation, rounded |
| // toward zero. |
| double int_result = std::floor(value); |
| double error = value - int_result; |
| if ((error != 0.0) && (int_result < 0.0)) { |
| int_result++; |
| } |
| // Constrain the value into the range [INT32_MIN, INT32_MAX]. We can almost |
| // write a one-liner with std::round, but the behaviour on ties is incorrect |
| // for our purposes. |
| double mod_const = static_cast<double>(UINT64_C(1) << 32); |
| double mod_error = |
| (int_result / mod_const) - std::floor(int_result / mod_const); |
| double constrained; |
| if (mod_error == 0.5) { |
| constrained = INT32_MIN; |
| } else { |
| constrained = int_result - mod_const * round(int_result / mod_const); |
| } |
| DCHECK(std::floor(constrained) == constrained); |
| DCHECK(constrained >= INT32_MIN); |
| DCHECK(constrained <= INT32_MAX); |
| // Take the bottom 32 bits of the result as a 32-bit integer. |
| result = static_cast<int32_t>(constrained); |
| if ((int_result < INT32_MIN) || (int_result > INT32_MAX) || |
| (error != 0.0)) { |
| // If the integer result is out of range or the conversion isn't exact, |
| // take exception and unset the Z-flag. |
| FPProcessException(); |
| Z = 0; |
| } |
| } |
| nzcv().SetN(0); |
| nzcv().SetZ(Z); |
| nzcv().SetC(0); |
| nzcv().SetV(0); |
| return result; |
| } |
| |
| LogicVRegister Simulator::frsqrts(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| frsqrts<float>(vform, dst, src1, src2); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| frsqrts<double>(vform, dst, src1, src2); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::fcmp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, Condition cond) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| bool result = false; |
| T op1 = src1.Float<T>(i); |
| T op2 = src2.Float<T>(i); |
| T nan_result = FPProcessNaNs(op1, op2); |
| if (!std::isnan(nan_result)) { |
| switch (cond) { |
| case eq: |
| result = (op1 == op2); |
| break; |
| case ge: |
| result = (op1 >= op2); |
| break; |
| case gt: |
| result = (op1 > op2); |
| break; |
| case le: |
| result = (op1 <= op2); |
| break; |
| case lt: |
| result = (op1 < op2); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| } |
| dst.SetUint(vform, i, result ? MaxUintFromFormat(vform) : 0); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcmp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, Condition cond) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| fcmp<float>(vform, dst, src1, src2, cond); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| fcmp<double>(vform, dst, src1, src2, cond); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcmp_zero(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, Condition cond) { |
| SimVRegister temp; |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| LogicVRegister zero_reg = |
| dup_immediate(vform, temp, bit_cast<uint32_t>(0.0f)); |
| fcmp<float>(vform, dst, src, zero_reg, cond); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| LogicVRegister zero_reg = |
| dup_immediate(vform, temp, bit_cast<uint64_t>(0.0)); |
| fcmp<double>(vform, dst, src, zero_reg, cond); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fabscmp(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, Condition cond) { |
| SimVRegister temp1, temp2; |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| LogicVRegister abs_src1 = fabs_<float>(vform, temp1, src1); |
| LogicVRegister abs_src2 = fabs_<float>(vform, temp2, src2); |
| fcmp<float>(vform, dst, abs_src1, abs_src2, cond); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| LogicVRegister abs_src1 = fabs_<double>(vform, temp1, src1); |
| LogicVRegister abs_src2 = fabs_<double>(vform, temp2, src2); |
| fcmp<double>(vform, dst, abs_src1, abs_src2, cond); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::fmla(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| T op1 = src1.Float<T>(i); |
| T op2 = src2.Float<T>(i); |
| T acc = dst.Float<T>(i); |
| T result = FPMulAdd(acc, op1, op2); |
| dst.SetFloat(i, result); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fmla(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| fmla<float>(vform, dst, src1, src2); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| fmla<double>(vform, dst, src1, src2); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::fmls(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| T op1 = -src1.Float<T>(i); |
| T op2 = src2.Float<T>(i); |
| T acc = dst.Float<T>(i); |
| T result = FPMulAdd(acc, op1, op2); |
| dst.SetFloat(i, result); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fmls(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| fmls<float>(vform, dst, src1, src2); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| fmls<double>(vform, dst, src1, src2); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::fneg(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| T op = src.Float<T>(i); |
| op = -op; |
| dst.SetFloat(i, op); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fneg(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| fneg<float>(vform, dst, src); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| fneg<double>(vform, dst, src); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::fabs_(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| T op = src.Float<T>(i); |
| if (std::copysign(1.0, op) < 0.0) { |
| op = -op; |
| } |
| dst.SetFloat(i, op); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fabs_(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| fabs_<float>(vform, dst, src); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| fabs_<double>(vform, dst, src); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fabd(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2) { |
| SimVRegister temp; |
| fsub(vform, temp, src1, src2); |
| fabs_(vform, dst, temp); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fsqrt(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| float result = FPSqrt(src.Float<float>(i)); |
| dst.SetFloat(i, result); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| double result = FPSqrt(src.Float<double>(i)); |
| dst.SetFloat(i, result); |
| } |
| } |
| return dst; |
| } |
| |
| #define DEFINE_NEON_FP_PAIR_OP(FNP, FN, OP) \ |
| LogicVRegister Simulator::FNP(VectorFormat vform, LogicVRegister dst, \ |
| const LogicVRegister& src1, \ |
| const LogicVRegister& src2) { \ |
| SimVRegister temp1, temp2; \ |
| uzp1(vform, temp1, src1, src2); \ |
| uzp2(vform, temp2, src1, src2); \ |
| FN(vform, dst, temp1, temp2); \ |
| return dst; \ |
| } \ |
| \ |
| LogicVRegister Simulator::FNP(VectorFormat vform, LogicVRegister dst, \ |
| const LogicVRegister& src) { \ |
| if (vform == kFormatS) { \ |
| float result = OP(src.Float<float>(0), src.Float<float>(1)); \ |
| dst.SetFloat(0, result); \ |
| } else { \ |
| DCHECK_EQ(vform, kFormatD); \ |
| double result = OP(src.Float<double>(0), src.Float<double>(1)); \ |
| dst.SetFloat(0, result); \ |
| } \ |
| dst.ClearForWrite(vform); \ |
| return dst; \ |
| } |
| NEON_FPPAIRWISE_LIST(DEFINE_NEON_FP_PAIR_OP) |
| #undef DEFINE_NEON_FP_PAIR_OP |
| |
| LogicVRegister Simulator::FMinMaxV(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, FPMinMaxOp Op) { |
| DCHECK_EQ(vform, kFormat4S); |
| USE(vform); |
| float result1 = (this->*Op)(src.Float<float>(0), src.Float<float>(1)); |
| float result2 = (this->*Op)(src.Float<float>(2), src.Float<float>(3)); |
| float result = (this->*Op)(result1, result2); |
| dst.ClearForWrite(kFormatS); |
| dst.SetFloat<float>(0, result); |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fmaxv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return FMinMaxV(vform, dst, src, &Simulator::FPMax); |
| } |
| |
| LogicVRegister Simulator::fminv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return FMinMaxV(vform, dst, src, &Simulator::FPMin); |
| } |
| |
| LogicVRegister Simulator::fmaxnmv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return FMinMaxV(vform, dst, src, &Simulator::FPMaxNM); |
| } |
| |
| LogicVRegister Simulator::fminnmv(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| return FMinMaxV(vform, dst, src, &Simulator::FPMinNM); |
| } |
| |
| LogicVRegister Simulator::fmul(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| dst.ClearForWrite(vform); |
| SimVRegister temp; |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| LogicVRegister index_reg = dup_element(kFormat4S, temp, src2, index); |
| fmul<float>(vform, dst, src1, index_reg); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| LogicVRegister index_reg = dup_element(kFormat2D, temp, src2, index); |
| fmul<double>(vform, dst, src1, index_reg); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fmla(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| dst.ClearForWrite(vform); |
| SimVRegister temp; |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| LogicVRegister index_reg = dup_element(kFormat4S, temp, src2, index); |
| fmla<float>(vform, dst, src1, index_reg); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| LogicVRegister index_reg = dup_element(kFormat2D, temp, src2, index); |
| fmla<double>(vform, dst, src1, index_reg); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fmls(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| dst.ClearForWrite(vform); |
| SimVRegister temp; |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| LogicVRegister index_reg = dup_element(kFormat4S, temp, src2, index); |
| fmls<float>(vform, dst, src1, index_reg); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| LogicVRegister index_reg = dup_element(kFormat2D, temp, src2, index); |
| fmls<double>(vform, dst, src1, index_reg); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fmulx(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src1, |
| const LogicVRegister& src2, int index) { |
| dst.ClearForWrite(vform); |
| SimVRegister temp; |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| LogicVRegister index_reg = dup_element(kFormat4S, temp, src2, index); |
| fmulx<float>(vform, dst, src1, index_reg); |
| |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| LogicVRegister index_reg = dup_element(kFormat2D, temp, src2, index); |
| fmulx<double>(vform, dst, src1, index_reg); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::frint(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, |
| FPRounding rounding_mode, |
| bool inexact_exception) { |
| dst.ClearForWrite(vform); |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| float input = src.Float<float>(i); |
| float rounded = FPRoundInt(input, rounding_mode); |
| if (inexact_exception && !std::isnan(input) && (input != rounded)) { |
| FPProcessException(); |
| } |
| dst.SetFloat<float>(i, rounded); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| double input = src.Float<double>(i); |
| double rounded = FPRoundInt(input, rounding_mode); |
| if (inexact_exception && !std::isnan(input) && (input != rounded)) { |
| FPProcessException(); |
| } |
| dst.SetFloat<double>(i, rounded); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvts(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, |
| FPRounding rounding_mode, int fbits) { |
| dst.ClearForWrite(vform); |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| float op = src.Float<float>(i) * std::pow(2.0f, fbits); |
| dst.SetInt(vform, i, FPToInt32(op, rounding_mode)); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| double op = src.Float<double>(i) * std::pow(2.0, fbits); |
| dst.SetInt(vform, i, FPToInt64(op, rounding_mode)); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvtu(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, |
| FPRounding rounding_mode, int fbits) { |
| dst.ClearForWrite(vform); |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| float op = src.Float<float>(i) * std::pow(2.0f, fbits); |
| dst.SetUint(vform, i, FPToUInt32(op, rounding_mode)); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| double op = src.Float<double>(i) * std::pow(2.0, fbits); |
| dst.SetUint(vform, i, FPToUInt64(op, rounding_mode)); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvtl(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = LaneCountFromFormat(vform) - 1; i >= 0; i--) { |
| dst.SetFloat(i, FPToFloat(src.Float<float16>(i))); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = LaneCountFromFormat(vform) - 1; i >= 0; i--) { |
| dst.SetFloat(i, FPToDouble(src.Float<float>(i))); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvtl2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| int lane_count = LaneCountFromFormat(vform); |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = 0; i < lane_count; i++) { |
| dst.SetFloat(i, FPToFloat(src.Float<float16>(i + lane_count))); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = 0; i < lane_count; i++) { |
| dst.SetFloat(i, FPToDouble(src.Float<float>(i + lane_count))); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvtn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| if (LaneSizeInBytesFromFormat(vform) == kHRegSize) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetFloat(i, FPToFloat16(src.Float<float>(i), FPTieEven)); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kSRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetFloat(i, FPToFloat(src.Float<double>(i), FPTieEven)); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvtn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| int lane_count = LaneCountFromFormat(vform) / 2; |
| if (LaneSizeInBytesFromFormat(vform) == kHRegSize) { |
| for (int i = lane_count - 1; i >= 0; i--) { |
| dst.SetFloat(i + lane_count, FPToFloat16(src.Float<float>(i), FPTieEven)); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kSRegSize); |
| for (int i = lane_count - 1; i >= 0; i--) { |
| dst.SetFloat(i + lane_count, FPToFloat(src.Float<double>(i), FPTieEven)); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvtxn(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kSRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| dst.SetFloat(i, FPToFloat(src.Float<double>(i), FPRoundOdd)); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::fcvtxn2(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kSRegSize); |
| int lane_count = LaneCountFromFormat(vform) / 2; |
| for (int i = lane_count - 1; i >= 0; i--) { |
| dst.SetFloat(i + lane_count, FPToFloat(src.Float<double>(i), FPRoundOdd)); |
| } |
| return dst; |
| } |
| |
| // Based on reference C function recip_sqrt_estimate from ARM ARM. |
| double Simulator::recip_sqrt_estimate(double a) { |
| int q0, q1, s; |
| double r; |
| if (a < 0.5) { |
| q0 = static_cast<int>(a * 512.0); |
| r = 1.0 / sqrt((static_cast<double>(q0) + 0.5) / 512.0); |
| } else { |
| q1 = static_cast<int>(a * 256.0); |
| r = 1.0 / sqrt((static_cast<double>(q1) + 0.5) / 256.0); |
| } |
| s = static_cast<int>(256.0 * r + 0.5); |
| return static_cast<double>(s) / 256.0; |
| } |
| |
| namespace { |
| |
| inline uint64_t Bits(uint64_t val, int start_bit, int end_bit) { |
| return unsigned_bitextract_64(start_bit, end_bit, val); |
| } |
| |
| } // anonymous namespace |
| |
| template <typename T> |
| T Simulator::FPRecipSqrtEstimate(T op) { |
| static_assert(std::is_same<float, T>::value || std::is_same<double, T>::value, |
| "T must be a float or double"); |
| |
| if (std::isnan(op)) { |
| return FPProcessNaN(op); |
| } else if (op == 0.0) { |
| if (std::copysign(1.0, op) < 0.0) { |
| return kFP64NegativeInfinity; |
| } else { |
| return kFP64PositiveInfinity; |
| } |
| } else if (std::copysign(1.0, op) < 0.0) { |
| FPProcessException(); |
| return FPDefaultNaN<T>(); |
| } else if (std::isinf(op)) { |
| return 0.0; |
| } else { |
| uint64_t fraction; |
| int32_t exp, result_exp; |
| |
| if (sizeof(T) == sizeof(float)) { |
| exp = static_cast<int32_t>(float_exp(op)); |
| fraction = float_mantissa(op); |
| fraction <<= 29; |
| } else { |
| exp = static_cast<int32_t>(double_exp(op)); |
| fraction = double_mantissa(op); |
| } |
| |
| if (exp == 0) { |
| while (Bits(fraction, 51, 51) == 0) { |
| fraction = Bits(fraction, 50, 0) << 1; |
| exp -= 1; |
| } |
| fraction = Bits(fraction, 50, 0) << 1; |
| } |
| |
| double scaled; |
| if (Bits(exp, 0, 0) == 0) { |
| scaled = double_pack(0, 1022, Bits(fraction, 51, 44) << 44); |
| } else { |
| scaled = double_pack(0, 1021, Bits(fraction, 51, 44) << 44); |
| } |
| |
| if (sizeof(T) == sizeof(float)) { |
| result_exp = (380 - exp) / 2; |
| } else { |
| result_exp = (3068 - exp) / 2; |
| } |
| |
| uint64_t estimate = bit_cast<uint64_t>(recip_sqrt_estimate(scaled)); |
| |
| if (sizeof(T) == sizeof(float)) { |
| uint32_t exp_bits = static_cast<uint32_t>(Bits(result_exp, 7, 0)); |
| uint32_t est_bits = static_cast<uint32_t>(Bits(estimate, 51, 29)); |
| return float_pack(0, exp_bits, est_bits); |
| } else { |
| return double_pack(0, Bits(result_exp, 10, 0), Bits(estimate, 51, 0)); |
| } |
| } |
| } |
| |
| LogicVRegister Simulator::frsqrte(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| float input = src.Float<float>(i); |
| dst.SetFloat(i, FPRecipSqrtEstimate<float>(input)); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| double input = src.Float<double>(i); |
| dst.SetFloat(i, FPRecipSqrtEstimate<double>(input)); |
| } |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| T Simulator::FPRecipEstimate(T op, FPRounding rounding) { |
| static_assert(std::is_same<float, T>::value || std::is_same<double, T>::value, |
| "T must be a float or double"); |
| uint32_t sign; |
| |
| if (sizeof(T) == sizeof(float)) { |
| sign = float_sign(op); |
| } else { |
| sign = double_sign(op); |
| } |
| |
| if (std::isnan(op)) { |
| return FPProcessNaN(op); |
| } else if (std::isinf(op)) { |
| return (sign == 1) ? -0.0 : 0.0; |
| } else if (op == 0.0) { |
| FPProcessException(); // FPExc_DivideByZero exception. |
| return (sign == 1) ? kFP64NegativeInfinity : kFP64PositiveInfinity; |
| } else if (((sizeof(T) == sizeof(float)) && |
| (std::fabs(op) < std::pow(2.0, -128.0))) || |
| ((sizeof(T) == sizeof(double)) && |
| (std::fabs(op) < std::pow(2.0, -1024.0)))) { |
| bool overflow_to_inf = false; |
| switch (rounding) { |
| case FPTieEven: |
| overflow_to_inf = true; |
| break; |
| case FPPositiveInfinity: |
| overflow_to_inf = (sign == 0); |
| break; |
| case FPNegativeInfinity: |
| overflow_to_inf = (sign == 1); |
| break; |
| case FPZero: |
| overflow_to_inf = false; |
| break; |
| default: |
| break; |
| } |
| FPProcessException(); // FPExc_Overflow and FPExc_Inexact. |
| if (overflow_to_inf) { |
| return (sign == 1) ? kFP64NegativeInfinity : kFP64PositiveInfinity; |
| } else { |
| // Return FPMaxNormal(sign). |
| if (sizeof(T) == sizeof(float)) { |
| return float_pack(sign, 0xFE, 0x07FFFFF); |
| } else { |
| return double_pack(sign, 0x7FE, 0x0FFFFFFFFFFFFFl); |
| } |
| } |
| } else { |
| uint64_t fraction; |
| int32_t exp, result_exp; |
| uint32_t sign; |
| |
| if (sizeof(T) == sizeof(float)) { |
| sign = float_sign(op); |
| exp = static_cast<int32_t>(float_exp(op)); |
| fraction = float_mantissa(op); |
| fraction <<= 29; |
| } else { |
| sign = double_sign(op); |
| exp = static_cast<int32_t>(double_exp(op)); |
| fraction = double_mantissa(op); |
| } |
| |
| if (exp == 0) { |
| if (Bits(fraction, 51, 51) == 0) { |
| exp -= 1; |
| fraction = Bits(fraction, 49, 0) << 2; |
| } else { |
| fraction = Bits(fraction, 50, 0) << 1; |
| } |
| } |
| |
| double scaled = double_pack(0, 1022, Bits(fraction, 51, 44) << 44); |
| |
| if (sizeof(T) == sizeof(float)) { |
| result_exp = 253 - exp; |
| } else { |
| result_exp = 2045 - exp; |
| } |
| |
| double estimate = recip_estimate(scaled); |
| |
| fraction = double_mantissa(estimate); |
| if (result_exp == 0) { |
| fraction = (UINT64_C(1) << 51) | Bits(fraction, 51, 1); |
| } else if (result_exp == -1) { |
| fraction = (UINT64_C(1) << 50) | Bits(fraction, 51, 2); |
| result_exp = 0; |
| } |
| if (sizeof(T) == sizeof(float)) { |
| uint32_t exp_bits = static_cast<uint32_t>(Bits(result_exp, 7, 0)); |
| uint32_t frac_bits = static_cast<uint32_t>(Bits(fraction, 51, 29)); |
| return float_pack(sign, exp_bits, frac_bits); |
| } else { |
| return double_pack(sign, Bits(result_exp, 10, 0), Bits(fraction, 51, 0)); |
| } |
| } |
| } |
| |
| LogicVRegister Simulator::frecpe(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, FPRounding round) { |
| dst.ClearForWrite(vform); |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| float input = src.Float<float>(i); |
| dst.SetFloat(i, FPRecipEstimate<float>(input, round)); |
| } |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| double input = src.Float<double>(i); |
| dst.SetFloat(i, FPRecipEstimate<double>(input, round)); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ursqrte(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| uint64_t operand; |
| uint32_t result; |
| double dp_operand, dp_result; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| operand = src.Uint(vform, i); |
| if (operand <= 0x3FFFFFFF) { |
| result = 0xFFFFFFFF; |
| } else { |
| dp_operand = operand * std::pow(2.0, -32); |
| dp_result = recip_sqrt_estimate(dp_operand) * std::pow(2.0, 31); |
| result = static_cast<uint32_t>(dp_result); |
| } |
| dst.SetUint(vform, i, result); |
| } |
| return dst; |
| } |
| |
| // Based on reference C function recip_estimate from ARM ARM. |
| double Simulator::recip_estimate(double a) { |
| int q, s; |
| double r; |
| q = static_cast<int>(a * 512.0); |
| r = 1.0 / ((static_cast<double>(q) + 0.5) / 512.0); |
| s = static_cast<int>(256.0 * r + 0.5); |
| return static_cast<double>(s) / 256.0; |
| } |
| |
| LogicVRegister Simulator::urecpe(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| uint64_t operand; |
| uint32_t result; |
| double dp_operand, dp_result; |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| operand = src.Uint(vform, i); |
| if (operand <= 0x7FFFFFFF) { |
| result = 0xFFFFFFFF; |
| } else { |
| dp_operand = operand * std::pow(2.0, -32); |
| dp_result = recip_estimate(dp_operand) * std::pow(2.0, 31); |
| result = static_cast<uint32_t>(dp_result); |
| } |
| dst.SetUint(vform, i, result); |
| } |
| return dst; |
| } |
| |
| template <typename T> |
| LogicVRegister Simulator::frecpx(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| dst.ClearForWrite(vform); |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| T op = src.Float<T>(i); |
| T result; |
| if (std::isnan(op)) { |
| result = FPProcessNaN(op); |
| } else { |
| int exp; |
| uint32_t sign; |
| if (sizeof(T) == sizeof(float)) { |
| sign = float_sign(op); |
| exp = static_cast<int>(float_exp(op)); |
| exp = (exp == 0) ? (0xFF - 1) : static_cast<int>(Bits(~exp, 7, 0)); |
| result = float_pack(sign, exp, 0); |
| } else { |
| sign = double_sign(op); |
| exp = static_cast<int>(double_exp(op)); |
| exp = (exp == 0) ? (0x7FF - 1) : static_cast<int>(Bits(~exp, 10, 0)); |
| result = double_pack(sign, exp, 0); |
| } |
| } |
| dst.SetFloat(i, result); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::frecpx(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| frecpx<float>(vform, dst, src); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| frecpx<double>(vform, dst, src); |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::scvtf(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int fbits, |
| FPRounding round) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| float result = FixedToFloat(src.Int(kFormatS, i), fbits, round); |
| dst.SetFloat<float>(i, result); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| double result = FixedToDouble(src.Int(kFormatD, i), fbits, round); |
| dst.SetFloat<double>(i, result); |
| } |
| } |
| return dst; |
| } |
| |
| LogicVRegister Simulator::ucvtf(VectorFormat vform, LogicVRegister dst, |
| const LogicVRegister& src, int fbits, |
| FPRounding round) { |
| for (int i = 0; i < LaneCountFromFormat(vform); i++) { |
| if (LaneSizeInBytesFromFormat(vform) == kSRegSize) { |
| float result = UFixedToFloat(src.Uint(kFormatS, i), fbits, round); |
| dst.SetFloat<float>(i, result); |
| } else { |
| DCHECK_EQ(LaneSizeInBytesFromFormat(vform), kDRegSize); |
| double result = UFixedToDouble(src.Uint(kFormatD, i), fbits, round); |
| dst.SetFloat<double>(i, result); |
| } |
| } |
| return dst; |
| } |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // USE_SIMULATOR |
