From 83e95a5ce6619720131e13fa3f39bb8ab3119ecf Mon Sep 17 00:00:00 2001
From: Jean-Marc Valin <jmvalin@amazon.com>
Date: Tue, 1 Aug 2023 21:26:16 -0400
Subject: [PATCH] Don't compute linear activation in-place

saves a few cycles
---
 dnn/nnet.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dnn/nnet.c b/dnn/nnet.c
index 0bb228fe..73c49fc3 100644
--- a/dnn/nnet.c
+++ b/dnn/nnet.c
@@ -184,8 +184,10 @@ void compute_activation(float *output, const float *input, int N, int activation
 #endif
    } else {
       celt_assert(activation == ACTIVATION_LINEAR);
-      for (i=0;i<N;i++)
-         output[i] = input[i];
+      if (input != output) {
+         for (i=0;i<N;i++)
+            output[i] = input[i];
+      }
    }
 }