From cbb18429f1c3dcfed938f68f504048ea5ccd991b Mon Sep 17 00:00:00 2001
From: Spoike <acceptthis@users.sourceforge.net>
Date: Thu, 28 Jul 2022 02:18:11 +0000
Subject: [PATCH] Work around a gcc optimisation bug.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@6301 fc73d0e0-1445-4013-8a0c-d673dee63da5
---
 engine/common/sha2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/engine/common/sha2.c b/engine/common/sha2.c
index 5fb675f88..f6a1e65de 100644
--- a/engine/common/sha2.c
+++ b/engine/common/sha2.c
@@ -132,6 +132,9 @@ static void sha2trunc_init (void *context)
   hd->count = 0;
 }
 
+#if defined(__GNUC__) && (__GNUC__==10)
+	__attribute__((optimize("no-tree-bit-ccp")))	//gcc (Debian 10.2.1-6) 10.2.1 20210110 miscompiles without this (eg: test webrtc compat with a browser)
+#endif
 fte_inlinestatic u64
 ROTR (u64 x, u64 n)
 {