From 596a8dd1ddae803aabc63d6eb203efa35a8b228a Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Fri, 20 Apr 2018 13:44:38 -0400
Subject: [PATCH] emit_x64_vector: Emit PMINSD in EmitVectorMinS32 on
 SSE4.1-capable CPUs

Provides a better alternative to a fallback operation.
---
 src/backend_x64/emit_x64_vector.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/backend_x64/emit_x64_vector.cpp b/src/backend_x64/emit_x64_vector.cpp
index 0d326c3b..21661060 100644
--- a/src/backend_x64/emit_x64_vector.cpp
+++ b/src/backend_x64/emit_x64_vector.cpp
@@ -906,6 +906,11 @@ void EmitX64::EmitVectorMinS16(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){
         std::transform(a.begin(), a.end(), b.begin(), result.begin(), [](auto x, auto y) { return std::min(x, y); });
     });