From d8ef20c85695f6272dd71dbde1b8d04bac012dbe Mon Sep 17 00:00:00 2001
From: Yuri Kunde Schlesner <yuriks@yuriks.net>
Date: Mon, 24 Aug 2015 01:15:39 -0300
Subject: [PATCH] Shader JIT: Tiny micro-optimization in DPH

---
 src/video_core/shader/shader_jit_x64.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/video_core/shader/shader_jit_x64.cpp b/src/video_core/shader/shader_jit_x64.cpp
index ddae61cae..c8a669b51 100644
--- a/src/video_core/shader/shader_jit_x64.cpp
+++ b/src/video_core/shader/shader_jit_x64.cpp
@@ -367,10 +367,10 @@ void JitCompiler::Compile_DPH(Instruction instr) {
         // Set 4th component to 1.0
         BLENDPS(SRC1, R(ONE), 0x8); // 0b1000
     } else {
-        // Reverse to set the 4th component to 1.0
-        SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3));
-        MOVSS(SRC1, R(ONE));
-        SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3));
+        // Set 4th component to 1.0
+        MOVAPS(SCRATCH, R(SRC1));
+        UNPCKHPS(SCRATCH, R(ONE));  // XYZW, 1111 -> Z1__
+        UNPCKLPD(SRC1, R(SCRATCH)); // XYZW, Z1__ -> XYZ1
     }
 
     Compile_SanitizedMul(SRC1, SRC2, SCRATCH);