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A64: Enable half-precision vector FRINT* variants

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Lioncash 2019-04-13 18:01:43 -04:00 • committed by MerryMage
parent 24f583c498
commit d7f394fc1a
2 changed files with 46 additions and 7 deletions
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39
src/frontend/A64/translate/impl/simd_two_register_misc.cpp
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@ -138,6 +138,17 @@ bool FloatRoundToIntegral(TranslatorVisitor& v, bool Q, bool sz, Vec Vn, Vec Vd,
return true;
}
bool FloatRoundToIntegralHalfPrecision(TranslatorVisitor& v, bool Q, Vec Vn, Vec Vd, FP::RoundingMode rounding_mode, bool exact) {
const size_t datasize = Q ? 128 : 64;
const size_t esize = 16;
const IR::U128 operand = v.V(datasize, Vn);
const IR::U128 result = v.ir.FPVectorRoundInt(esize, operand, rounding_mode, exact);
v.V(datasize, Vd, result);
return true;
}
bool SaturatedNarrow(TranslatorVisitor& v, bool Q, Imm<2> size, Vec Vn, Vec Vd, IR::U128 (IR::IREmitter::*fn)(size_t, const IR::U128&)) {
if (size == 0b11) {
return v.ReservedValue();
@ -451,30 +462,58 @@ bool TranslatorVisitor::FCVTZU_int_4(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatConvertToInteger(*this, Q, sz, Vn, Vd, Signedness::Unsigned, FP::RoundingMode::TowardsZero);
}
bool TranslatorVisitor::FRINTN_1(bool Q, Vec Vn, Vec Vd) {
return FloatRoundToIntegralHalfPrecision(*this, Q, Vn, Vd, FP::RoundingMode::ToNearest_TieEven, false);
}
bool TranslatorVisitor::FRINTN_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::ToNearest_TieEven, false);
}
bool TranslatorVisitor::FRINTM_1(bool Q, Vec Vn, Vec Vd) {
return FloatRoundToIntegralHalfPrecision(*this, Q, Vn, Vd, FP::RoundingMode::TowardsMinusInfinity, false);
}
bool TranslatorVisitor::FRINTM_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::TowardsMinusInfinity, false);
}
bool TranslatorVisitor::FRINTP_1(bool Q, Vec Vn, Vec Vd) {
return FloatRoundToIntegralHalfPrecision(*this, Q, Vn, Vd, FP::RoundingMode::TowardsPlusInfinity, false);
}
bool TranslatorVisitor::FRINTP_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::TowardsPlusInfinity, false);
}
bool TranslatorVisitor::FRINTZ_1(bool Q, Vec Vn, Vec Vd) {
return FloatRoundToIntegralHalfPrecision(*this, Q, Vn, Vd, FP::RoundingMode::TowardsZero, false);
}
bool TranslatorVisitor::FRINTZ_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::TowardsZero, false);
}
bool TranslatorVisitor::FRINTA_1(bool Q, Vec Vn, Vec Vd) {
return FloatRoundToIntegralHalfPrecision(*this, Q, Vn, Vd, FP::RoundingMode::ToNearest_TieAwayFromZero, false);
}
bool TranslatorVisitor::FRINTA_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::ToNearest_TieAwayFromZero, false);
}
bool TranslatorVisitor::FRINTX_1(bool Q, Vec Vn, Vec Vd) {
return FloatRoundToIntegralHalfPrecision(*this, Q, Vn, Vd, ir.current_location->FPCR().RMode(), true);
}
bool TranslatorVisitor::FRINTX_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, ir.current_location->FPCR().RMode(), true);
}
bool TranslatorVisitor::FRINTI_1(bool Q, Vec Vn, Vec Vd) {
return FloatRoundToIntegralHalfPrecision(*this, Q, Vn, Vd, ir.current_location->FPCR().RMode(), false);
}
bool TranslatorVisitor::FRINTI_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd,ir.current_location->FPCR().RMode(), false);
}