From c9aa6164d4b7bd73f0fcc1800e4f1cc49ead9bb5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Thu, 22 Sep 2022 11:13:13 +0300
Subject: [PATCH] x86/lpc: Fix parameter sign extension, unbreaking
 checkasm-lpc on x86_64 windows
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Signed-off-by: Martin Storsjö <martin@martin.st>
---
 libavcodec/x86/lpc.asm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/x86/lpc.asm b/libavcodec/x86/lpc.asm
index ad74f1d8ac..731aa7e2d8 100644
--- a/libavcodec/x86/lpc.asm
+++ b/libavcodec/x86/lpc.asm
@@ -36,6 +36,7 @@ SECTION .text
 
 %macro APPLY_WELCH_FN 0
 cglobal lpc_apply_welch_window, 3, 5, 8, data, len, out, off1, off2
+    movsxdifnidn lenq, lend
     cmp lenq, 0
     je .end
     cmp lenq, 2