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emit_x64_vector: Emit PMINSD in EmitVectorMinS32 on SSE4.1-capable CPUs

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Provides a better alternative to a fallback operation.
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Lioncash 2018-04-20 13:44:38 -04:00 committed by MerryMage
parent 75fd4eaaaa
commit 596a8dd1dd
1 changed files with 5 additions and 0 deletions
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5
src/backend_x64/emit_x64_vector.cpp
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@ -906,6 +906,11 @@ void EmitX64::EmitVectorMinS16(EmitContext& ctx, IR::Inst* inst) {
} }
void EmitX64::EmitVectorMinS32(EmitContext& ctx, IR::Inst* inst) { void EmitX64::EmitVectorMinS32(EmitContext& ctx, IR::Inst* inst) {
if (code.DoesCpuSupport(Xbyak::util::Cpu::tSSE41)) {
EmitVectorOperation(code, ctx, inst, &Xbyak::CodeGenerator::pminsd);
return;
}
EmitTwoArgumentFallback(code, ctx, inst, [](std::array<s32, 4>& result, const std::array<s32, 4>& a, const std::array<s32, 4>& b){ EmitTwoArgumentFallback(code, ctx, inst, [](std::array<s32, 4>& result, const std::array<s32, 4>& a, const std::array<s32, 4>& b){
std::transform(a.begin(), a.end(), b.begin(), result.begin(), [](auto x, auto y) { return std::min(x, y); }); std::transform(a.begin(), a.end(), b.begin(), result.begin(), [](auto x, auto y) { return std::min(x, y); });
}); });