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A64: Implement USQADD's scalar and vector variants

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Lioncash 2018-09-09 03:11:19 -04:00 • committed by MerryMage
parent d4a76aaa04
commit 14e026a7f0
3 changed files with 30 additions and 2 deletions
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16
src/frontend/A64/translate/impl/simd_two_register_misc.cpp
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@ -645,6 +645,22 @@ bool TranslatorVisitor::SUQADD_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::USQADD_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
if (size == 0b11 && !Q) {
return ReservedValue();
}
const size_t esize = 8 << size.ZeroExtend();
const size_t datasize = Q ? 128 : 64;
const IR::U128 operand1 = V(datasize, Vn);
const IR::U128 operand2 = V(datasize, Vd);
const IR::U128 result = ir.VectorUnsignedSaturatedAccumulateSigned(esize, operand1, operand2);
V(datasize, Vd, result);
return true;
}
bool TranslatorVisitor::SADALP(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
return PairedAddLong(*this, Q, size, Vn, Vd, Signedness::Signed, PairedAddLongExtraBehavior::Accumulate);
}