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emit_x64_vector: Vectorize fallback path of EmitVectorMaxS8()

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Lioncash 2018-05-01 08:19:21 -04:00 committed by MerryMage
parent b194313d8c
commit c692ccdd6d
1 changed files with 13 additions and 3 deletions
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16
src/backend_x64/emit_x64_vector.cpp
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@ -1001,9 +1001,19 @@ void EmitX64::EmitVectorMaxS8(EmitContext& ctx, IR::Inst* inst) {
return;
}
EmitTwoArgumentFallback(code, ctx, inst, [](std::array<s8, 16>& result, const std::array<s8, 16>& a, const std::array<s8, 16>& b){
std::transform(a.begin(), a.end(), b.begin(), result.begin(), [](auto x, auto y) { return std::max(x, y); });
});
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm a = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm b = ctx.reg_alloc.UseScratchXmm(args[1]);
const Xbyak::Xmm tmp_b = ctx.reg_alloc.ScratchXmm();
code.movdqa(tmp_b, b);
code.pcmpgtb(tmp_b, a);
code.pand(b, tmp_b);
code.pandn(tmp_b, a);
code.por(tmp_b, b);
ctx.reg_alloc.DefineValue(inst, tmp_b);
}
void EmitX64::EmitVectorMaxS16(EmitContext& ctx, IR::Inst* inst) {