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A64: Implement FRSQRTS' half-precision scalar variant

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With the necessary machinery in place, we can now handle the
half-precision variant.
This commit is contained in:
Lioncash
2019-04-14 21:04:38 -04:00
committed by MerryMage
parent 96356fac93
commit f9b2862217
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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@@ -316,6 +316,17 @@ bool TranslatorVisitor::FRECPS_2(bool sz, Vec Vm, Vec Vn, Vec Vd) {
return true;
}
bool TranslatorVisitor::FRSQRTS_1(Vec Vm, Vec Vn, Vec Vd) {
const size_t esize = 16;
const IR::U16 operand1 = V_scalar(esize, Vn);
const IR::U16 operand2 = V_scalar(esize, Vm);
const IR::U16 result = ir.FPRSqrtStepFused(operand1, operand2);
V_scalar(esize, Vd, result);
return true;
}
bool TranslatorVisitor::FRSQRTS_2(bool sz, Vec Vm, Vec Vn, Vec Vd) {
const size_t esize = sz ? 64 : 32;