[FFmpeg-devel] [PATCH] Fix compilation on clang 2.8, which doesn't support 3dnow inline asm.

Ronald S. Bultje rsbultje
Fri Feb 11 18:49:20 CET 2011


Hi,

2011/2/11 M?ns Rullg?rd <mans at mansr.com>:
> "Ronald S. Bultje" <rsbultje at gmail.com> writes:
>
>> ---
>> ?configure ? ? ? ? ? ? ? ? ? ? ? | ? ?8 +++++---
>> ?libavcodec/x86/cavsdsp_mmx.c ? ?| ? ?4 ++++
>> ?libavcodec/x86/dsputil_mmx.c ? ?| ? 39 ++++++++++++++++++++++++++++++++-------
>> ?libavcodec/x86/dsputilenc_mmx.c | ? ?4 ++++
>> ?libavcodec/x86/fmtconvert_mmx.c | ? 10 ++++++++++
>> ?libavcodec/x86/h264_qpel_mmx.c ?| ? ?2 ++
>> ?libswscale/rgb2rgb.c ? ? ? ? ? ?| ? ?4 ++++
>> ?7 files changed, 61 insertions(+), 10 deletions(-)
>>
>> diff --git a/configure b/configure
>> index a3ca15d..48e7d60 100755
>> --- a/configure
>> +++ b/configure
>> @@ -2649,9 +2649,11 @@ int main(void) {
>> ?}
>> ?EOF
>>
>> - ? ?# check whether binutils is new enough to compile SSSE3/MMX2
>> - ? ?enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
>> - ? ?enabled mmx2 ?&& check_asm mmx2 ?'"pmaxub %mm0, %mm1"'
>> + ? ?# check whether binutils is new enough to compile SSSE3/MMX2/3dnow
>> + ? ?enabled ssse3 ? ?&& check_asm ssse3 ? ?'"pabsw ?%xmm0, %xmm0"'
>> + ? ?enabled mmx2 ? ? && check_asm mmx2 ? ? '"pmaxub ?%mm0, %mm1"'
>> + ? ?enabled amd3dnow && check_asm amd3dnow '"pavgusb %mm0, %mm1"'
>> + ? ?enabled amd3dnowext && enabled amd3dnow || disable amd3dnowext
>
> amd3dnowext already has a _deps on amd3dnow so that last line isn't needed.

It remained enabled without it for some obscure reason.

Ronald



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