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simd_two_register_misc: FNEG (vector) with Q == 0 had dirty upper

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MerryMage
2018-09-09 19:55:37 +01:00
parent 5653e7637e
commit b8daa4feac
2 changed files with 23 additions and 1 deletions
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src/frontend/A64/translate/impl/simd_two_register_misc.cpp
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@@ -460,7 +460,7 @@ bool TranslatorVisitor::FNEG_2(bool Q, bool sz, Vec Vn, Vec Vd) {
const size_t mask_value = esize == 64 ? 0x8000000000000000 : 0x8000000080000000;
const IR::U128 operand = V(datasize, Vn);
const IR::U128 mask = ir.VectorBroadcast(esize, I(esize, mask_value));
const IR::U128 mask = Q ? ir.VectorBroadcast(esize, I(esize, mask_value)) : ir.VectorBroadcastLower(esize, I(esize, mask_value));
const IR::U128 result = ir.VectorEor(operand, mask);
V(datasize, Vd, result);