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A64: Implement UQXTN (vector)

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This commit is contained in:
MerryMage 2018-07-24 18:17:45 +01:00
parent e686a81612
commit b455b566e7
8 changed files with 80 additions and 27 deletions
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47
src/frontend/A64/translate/impl/simd_two_register_misc.cpp
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@ -106,6 +106,23 @@ bool IntegerConvertToFloat(TranslatorVisitor& v, bool Q, bool sz, Vec Vn, Vec Vd
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();
}
const size_t esize = 8 << size.ZeroExtend<size_t>();
const size_t datasize = 64;
const size_t part = Q ? 1 : 0;
const IR::U128 operand = v.V(2 * datasize, Vn);
const IR::U128 result = (v.ir.*fn)(2 * esize, operand);
v.Vpart(datasize, Vd, part, result);
return true;
}
} // Anonymous namespace
bool TranslatorVisitor::CNT(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
@ -276,35 +293,15 @@ bool TranslatorVisitor::NEG_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
}
bool TranslatorVisitor::SQXTUN_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
if (size == 0b11) {
return ReservedValue();
}
const size_t esize = 8 << size.ZeroExtend<size_t>();
const size_t datasize = 64;
const size_t part = Q ? 1 : 0;
const IR::U128 operand = V(2 * datasize, Vn);
const IR::U128 result = ir.VectorSignedSaturatedNarrowToUnsigned(2 * esize, operand);
Vpart(datasize, Vd, part, result);
return true;
return SaturatedNarrow(*this, Q, size, Vn, Vd, &IR::IREmitter::VectorSignedSaturatedNarrowToUnsigned);
}
bool TranslatorVisitor::SQXTN_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
if (size == 0b11) {
return ReservedValue();
}
return SaturatedNarrow(*this, Q, size, Vn, Vd, &IR::IREmitter::VectorSignedSaturatedNarrowToSigned);
}
const size_t esize = 8 << size.ZeroExtend<size_t>();
const size_t datasize = 64;
const size_t part = Q ? 1 : 0;
const IR::U128 operand = V(2 * datasize, Vn);
const IR::U128 result = ir.VectorSignedSaturatedNarrowToSigned(2 * esize, operand);
Vpart(datasize, Vd, part, result);
return true;
bool TranslatorVisitor::UQXTN_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
return SaturatedNarrow(*this, Q, size, Vn, Vd, &IR::IREmitter::VectorUnsignedSaturatedNarrow);
}
bool TranslatorVisitor::NOT(bool Q, Vec Vn, Vec Vd) {