1 files changed, 13 insertions, 0 deletions
diff --git a/src/libFLAC/deduplication/lpc_compute_autocorrelation_intrin.c b/src/libFLAC/deduplication/lpc_compute_autocorrelation_intrin.c
new file mode 100644
index 00000000..5843b000
--- /dev/null
+++ b/src/libFLAC/deduplication/lpc_compute_autocorrelation_intrin.c
@@ -0,0 +1,13 @@
+	(void) lag;
+	FLAC__ASSERT(lag <= MAX_LAG);
+
+        for(int i = 0; i < MAX_LAG; i++)
+                autoc[i] = 0.0;
+
+        for(int i = 0; i < MAX_LAG; i++)
+                for(int j = 0; j <= i; j++)
+                        autoc[j] += (double)data[i] * (double)data[i-j];
+
+        for(int i = MAX_LAG; i < (int)data_len; i++)
+		for(int j = 0; j < MAX_LAG; j++)
+	                autoc[j] += (double)data[i] * (double)data[i-j];