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A64: Implement SQXTN (vector)

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This commit is contained in:
MerryMage 2018-07-24 17:59:14 +01:00
parent 8ef114d48f
commit 3874cb37e3
8 changed files with 139 additions and 38 deletions
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16
src/frontend/A64/translate/impl/simd_two_register_misc.cpp
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@ -291,6 +291,22 @@ bool TranslatorVisitor::SQXTUN_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::SQXTN_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.VectorSignedSaturatedNarrowToSigned(2 * esize, operand);
Vpart(datasize, Vd, part, result);
return true;
}
bool TranslatorVisitor::NOT(bool Q, Vec Vn, Vec Vd) {
const size_t datasize = Q ? 128 : 64;