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A64: Implement SQSHL (register)'s scalar variant

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We can implement this in terms of the vector variant.
This commit is contained in:
Lioncash
2019-03-04 14:15:02 -05:00
committed by MerryMage
parent 36027ebef5
commit 35ddf68ad5
2 changed files with 12 additions and 1 deletions
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11
src/frontend/A64/translate/impl/simd_scalar_three_same.cpp
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@@ -320,6 +320,17 @@ bool TranslatorVisitor::FCMGT_reg_2(bool sz, Vec Vm, Vec Vn, Vec Vd) {
return ScalarFPCompareRegister(*this, sz, Vm, Vn, Vd, FPComparisonType::GT);
}
bool TranslatorVisitor::SQSHL_reg_1(Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
const size_t esize = 8U << size.ZeroExtend();
const IR::U128 operand1 = ir.ZeroExtendToQuad(ir.VectorGetElement(esize, V(128, Vn), 0));
const IR::U128 operand2 = ir.ZeroExtendToQuad(ir.VectorGetElement(esize, V(128, Vm), 0));
const IR::U128 result = ir.VectorSignedSaturatedShiftLeft(esize, operand1, operand2);
ir.SetQ(Vd, result);
return true;
}
bool TranslatorVisitor::SRSHL_1(Imm<2> size, Vec Vm, Vec Vn, Vec Vd) {
return RoundingShiftLeft(*this, size, Vm, Vn, Vd, Signedness::Signed);
}