From 5938e02185430ca711106aaec9b5622dbf588af3 Mon Sep 17 00:00:00 2001
From: Sean McGovern <gseanmcg@gmail.com>
Date: Mon, 25 Jul 2011 18:51:02 -0400
Subject: [PATCH] cpu detection: avoid a signed overflow
1<<31 overflows because 1 is signed, so force it to unsigned.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
---
libavutil/x86/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavutil/x86/cpu.c b/libavutil/x86/cpu.c
index 78aeadf0a13..f747e4dba89 100644
--- a/libavutil/x86/cpu.c
+++ b/libavutil/x86/cpu.c
@@ -113,7 +113,7 @@ int ff_get_cpu_flags_x86(void)
if(max_ext_level >= 0x80000001){
cpuid(0x80000001, eax, ebx, ecx, ext_caps);
- if (ext_caps & (1<<31))
+ if (ext_caps & (1U<<31))
rval |= AV_CPU_FLAG_3DNOW;
if (ext_caps & (1<<30))
rval |= AV_CPU_FLAG_3DNOWEXT;
--
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