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A64: Implement FACGE's vector single/double precision variants

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This commit is contained in:
Lioncash
2018-07-06 22:49:34 -04:00
committed by MerryMage
parent 6912a02d9b
commit 53dbb6a92a
2 changed files with 32 additions and 14 deletions
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44
src/frontend/A64/translate/impl/simd_three_same.cpp
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@@ -130,6 +130,32 @@ bool FPCompareRegister(TranslatorVisitor& v, bool Q, bool sz, Vec Vm, Vec Vn, Ve
v.V(datasize, Vd, result);
return true;
}
enum class AbsoluteComparison {
GE,
GT,
};
bool FPAbsoluteComparison(TranslatorVisitor& v, bool Q, bool sz, Vec Vm, Vec Vn, Vec Vd, AbsoluteComparison type) {
if (sz && !Q) {
return v.ReservedValue();
}
const size_t datasize = Q ? 128 : 64;
const size_t esize = sz ? 64 : 32;
const IR::U128 operand1 = v.ir.FPVectorAbs(esize, v.V(datasize, Vn));
const IR::U128 operand2 = v.ir.FPVectorAbs(esize, v.V(datasize, Vm));
const IR::U128 result = [&] {
if (type == AbsoluteComparison::GT)
return v.ir.FPVectorGreater(esize, operand1, operand2);
return v.ir.FPVectorGreaterEqual(esize, operand1, operand2);
}();
v.V(datasize, Vd, result);
return true;
}
} // Anonymous namespace
bool TranslatorVisitor::CMGT_reg_2(bool Q, Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
@@ -380,20 +406,12 @@ bool TranslatorVisitor::FABD_4(bool Q, bool sz, Vec Vm, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::FACGE_4(bool Q, bool sz, Vec Vm, Vec Vn, Vec Vd) {
return FPAbsoluteComparison(*this, Q, sz, Vm, Vn, Vd, AbsoluteComparison::GE);
}
bool TranslatorVisitor::FACGT_4(bool Q, bool sz, Vec Vm, Vec Vn, Vec Vd) {
if (sz && !Q) {
return ReservedValue();
}
const size_t datasize = Q ? 128 : 64;
const size_t esize = sz ? 64 : 32;
const IR::U128 operand1 = ir.FPVectorAbs(esize, V(datasize, Vn));
const IR::U128 operand2 = ir.FPVectorAbs(esize, V(datasize, Vm));
const IR::U128 result = ir.FPVectorGreater(esize, operand1, operand2);
V(datasize, Vd, result);
return true;
return FPAbsoluteComparison(*this, Q, sz, Vm, Vn, Vd, AbsoluteComparison::GT);
}
bool TranslatorVisitor::FADD_2(bool Q, bool sz, Vec Vm, Vec Vn, Vec Vd) {