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load_store_multiple_structures: Improve IR codegen for selem == 1 case

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This commit is contained in:
MerryMage 2018-02-11 12:48:33 +00:00
parent f1cb5581c9
commit ce7628b6b5
1 changed files with 15 additions and 2 deletions
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15
src/frontend/A64/translate/impl/load_store_multiple_structures.cpp
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@ -51,6 +51,7 @@ static bool SharedDecodeAndOperation(TranslatorVisitor& tv, IREmitter& ir, bool
default:
return tv.UnallocatedEncoding();
}
ASSERT(rpt == 1 || selem == 1);
if ((size == 0b11 && !Q) && selem != 1) {
return tv.ReservedValue();
@ -64,10 +65,22 @@ static bool SharedDecodeAndOperation(TranslatorVisitor& tv, IREmitter& ir, bool
address = tv.X(64, Rn);
IR::U64 offs = ir.Imm64(0);
if (selem == 1) {
for (size_t r = 0; r < rpt; r++) {
const Vec tt = static_cast<Vec>((VecNumber(Vt) + r) % 32);
if (memop == MemOp::LOAD) {
const IR::UAnyU128 vec = tv.Mem(ir.Add(address, offs), ebytes * elements, AccType::VEC);
tv.V_scalar(datasize, tt, vec);
} else {
const IR::UAnyU128 vec = tv.V_scalar(datasize, tt);
tv.Mem(ir.Add(address, offs), ebytes * elements, AccType::VEC, vec);
}
offs = ir.Add(offs, ir.Imm64(ebytes * elements));
}
} else {
for (size_t e = 0; e < elements; e++) {
for (size_t s = 0; s < selem; s++) {
const Vec tt = static_cast<Vec>((VecNumber(Vt) + r + s) % 32);
const Vec tt = static_cast<Vec>((VecNumber(Vt) + s) % 32);
if (memop == MemOp::LOAD) {
const IR::UAny elem = tv.Mem(ir.Add(address, offs), ebytes, AccType::VEC);
const IR::U128 vec = ir.VectorSetElement(esize, tv.V(datasize, tt), e, elem);