From 86b59b1b593d35e8bb2afccdc10e9bf332223819 Mon Sep 17 00:00:00 2001
From: paulfd <paulfd@outlook.fr>
Date: Sun, 15 Sep 2019 23:01:40 +0200
Subject: [PATCH] Corrected a bug in the SSE version of the diff helper

---
 sfizz/SIMDSSE.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sfizz/SIMDSSE.cpp b/sfizz/SIMDSSE.cpp
index 69b9fd07..c4cd2e98 100644
--- a/sfizz/SIMDSSE.cpp
+++ b/sfizz/SIMDSSE.cpp
@@ -795,7 +795,7 @@ void diff<float, true>(absl::Span<const float> input, absl::Span<float> output)
     while (unaligned(in, out) && in < lastAligned)
         snippetDiff(in, out);
 
-    auto mmBase = _mm_set_ps1(*(out - 1));
+    auto mmBase = _mm_set_ps1(*(in - 1));
     while (in < lastAligned) {
         auto mmOutput = _mm_load_ps(in);
         auto mmNextBase = _mm_shuffle_ps(mmOutput, mmOutput, _MM_SHUFFLE(3, 3, 3, 3));