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A64: Implement UQXTN (vector)

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This commit is contained in:
MerryMage
2018-07-24 18:17:45 +01:00
parent e686a81612
commit b455b566e7
8 changed files with 80 additions and 27 deletions
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36
src/backend_x64/emit_x64_vector.cpp
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@@ -2419,6 +2419,42 @@ void EmitX64::EmitVectorUnsignedAbsoluteDifference32(EmitContext& ctx, IR::Inst*
EmitVectorUnsignedAbsoluteDifference(32, ctx, inst, code);
}
void EmitX64::EmitVectorUnsignedSaturatedNarrow16(EmitContext& ctx, IR::Inst* inst) {
EmitOneArgumentFallbackWithSaturation(code, ctx, inst, [](VectorArray<u8>& result, const VectorArray<u16>& a) {
bool qc_flag = false;
for (size_t i = 0; i < a.size(); ++i) {
const u16 saturated = std::clamp<u16>(a[i], 0, 0xFF);
result[i] = static_cast<u8>(saturated);
qc_flag |= saturated != a[i];
}
return qc_flag;
});
}
void EmitX64::EmitVectorUnsignedSaturatedNarrow32(EmitContext& ctx, IR::Inst* inst) {
EmitOneArgumentFallbackWithSaturation(code, ctx, inst, [](VectorArray<u16>& result, const VectorArray<u32>& a) {
bool qc_flag = false;
for (size_t i = 0; i < a.size(); ++i) {
const u32 saturated = std::clamp<u32>(a[i], 0, 0xFFFF);
result[i] = static_cast<u16>(saturated);
qc_flag |= saturated != a[i];
}
return qc_flag;
});
}
void EmitX64::EmitVectorUnsignedSaturatedNarrow64(EmitContext& ctx, IR::Inst* inst) {
EmitOneArgumentFallbackWithSaturation(code, ctx, inst, [](VectorArray<u32>& result, const VectorArray<u64>& a) {
bool qc_flag = false;
for (size_t i = 0; i < a.size(); ++i) {
const u64 saturated = std::clamp<u64>(a[i], 0, 0xFFFFFFFF);
result[i] = static_cast<u32>(saturated);
qc_flag |= saturated != a[i];
}
return qc_flag;
});
}
void EmitX64::EmitVectorZeroExtend8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);