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| author | Sean McGovern <gseanmcg@gmail.com> | 2011-07-25 18:51:02 -0400 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2011-09-26 19:26:31 +0200 |
| commit | 1cf3ba89711748b340c31fe018a3a72e8e9b75f1 (patch) | |
| tree | ee10354042a68933146ec1528b771603d3388158 | |
| parent | 2b74db8d2781202742535a466a371a10a108b141 (diff) | |
| download | ffmpeg-1cf3ba89711748b340c31fe018a3a72e8e9b75f1.tar.gz | |
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>
(cherry picked from commit 5938e02185430ca711106aaec9b5622dbf588af3)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
| -rw-r--r-- | libavutil/x86/cpu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/x86/cpu.c b/libavutil/x86/cpu.c index 78aeadf0a1..f747e4dba8 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; |