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A64: Implement CMGE (zero)'s vector variant

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Lioncash 2018-04-15 20:51:30 -04:00 committed by MerryMage
parent ab35dc0e78
commit 0d50d7314b
2 changed files with 20 additions and 1 deletions
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2
src/frontend/A64/decoder/a64.inc
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@ -618,7 +618,7 @@ INST(REV32_asimd, "REV32 (vector)", "0Q101
//INST(CLZ_asimd, "CLZ (vector)", "0Q101110zz100000010010nnnnnddddd")
//INST(UADALP, "UADALP", "0Q101110zz100000011010nnnnnddddd")
//INST(SQNEG_2, "SQNEG", "0Q101110zz100000011110nnnnnddddd")
//INST(CMGE_zero_2, "CMGE (zero)", "0Q101110zz100000100010nnnnnddddd")
INST(CMGE_zero_2, "CMGE (zero)", "0Q101110zz100000100010nnnnnddddd")
//INST(CMLE_2, "CMLE (zero)", "0Q101110zz100000100110nnnnnddddd")
INST(NEG_2, "NEG (vector)", "0Q101110zz100000101110nnnnnddddd")
//INST(SQXTUN_2, "SQXTUN, SQXTUN2", "0Q101110zz100001001010nnnnnddddd")

19
src/frontend/A64/translate/impl/simd_two_register_misc.cpp
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@ -21,6 +21,25 @@ bool TranslatorVisitor::CNT(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::CMGE_zero_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 operand = V(datasize, Vn);
const IR::U128 zero = ir.ZeroVector();
IR::U128 result = ir.VectorGreaterEqualSigned(esize, operand, zero);
if (datasize == 64) {
result = ir.VectorZeroUpper(result);
}
V(datasize, Vd, result);
return true;
}
bool TranslatorVisitor::CMGT_zero_2(bool Q, Imm<2> size, Vec Vn, Vec Vd) {
if (size == 0b11 && !Q) {
return ReservedValue();