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A64: Implement FRINT{N,M,P,Z,A,X,I} (vector), single/double variant

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This commit is contained in:
MerryMage 2018-07-30 13:32:20 +01:00
parent f976c47008
commit 9669e49817
2 changed files with 51 additions and 7 deletions
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44
src/frontend/A64/translate/impl/simd_two_register_misc.cpp
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@ -125,6 +125,21 @@ bool FloatConvertToInteger(TranslatorVisitor& v, bool Q, bool sz, Vec Vn, Vec Vd
return true;
}
bool FloatRoundToIntegral(TranslatorVisitor& v, bool Q, bool sz, Vec Vn, Vec Vd, FP::RoundingMode rounding_mode, bool exact) {
if (sz && !Q) {
return v.ReservedValue();
}
const size_t datasize = Q ? 128 : 64;
const size_t esize = sz ? 64 : 32;
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();
@ -292,6 +307,35 @@ 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_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::ToNearest_TieEven, 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_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::TowardsPlusInfinity, 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_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd, FP::RoundingMode::ToNearest_TieAwayFromZero, false);
}
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_2(bool Q, bool sz, Vec Vn, Vec Vd) {
return FloatRoundToIntegral(*this, Q, sz, Vn, Vd,ir.current_location->FPCR().RMode(), false);
}
bool TranslatorVisitor::FRECPE_4(bool Q, bool sz, Vec Vn, Vec Vd) {
if (sz && !Q) {
return ReservedValue();