[FFmpeg-devel] FFmpeg does not build with latest gcc SVN

[Alexander Strange]

On Feb 1, 2008, at 1:23 PM, Luca Barbato wrote:

> Mike Melanson wrote:
>> Hi,
>>
>> The FATE Server is paying dividends. It seems that the latest SVN  
>> builds
>> of gcc can not build FFmpeg.
>>
>> http://fate.multimedia.cx/index.php?stderr=2322
>>
>> The error is:
>>
>> /tmp/fate/source/libavcodec/mpegvideo_enc.c: In function  
>> 'encode_thread':
>> /tmp/fate/source/libavcodec/mpegvideo_enc.c:2623: error:  
>> unrecognizable
>> insn:
>> (insn 4698 7109 4699 433
>> /tmp/fate/source/libavcodec/mpegvideo_enc.c:1454 (parallel [
>>             (set (reg:V4SI 290 [ vect_cst_.8614 ])
>>                 (reg:V4SI 3508))
>>             (unspec [
>>                     (const_int 0 [0x0])
>>                 ] 196)
>>         ]) -1 (nil))
>> /tmp/fate/source/libavcodec/mpegvideo_enc.c:2623: internal compiler
>> error: in instantiate_virtual_regs_in_insn, at function.c:1564
>> Please submit a full bug report,
>> with preprocessed source if appropriate.
>> See  for instructions.
>> make[1]: *** [mpegvideo_enc.o] Error 1
>>
>
> You may use delta to get a smaller testcase and send it through gcc
> bugzilla.
>
> lu

The guide to delta is here: http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction

You should put "4.3 regression" in the title, those will be looked at  
faster.