On 5/6/2016 7:08 AM, Hendrik Leppkes wrote: > On Tue, Feb 9, 2016 at 1:28 AM, Timothy Gu <timothyg...@gmail.com> wrote: >> On Sun, Jan 31, 2016 at 3:38 PM Timothy Gu <timothyg...@gmail.com> wrote: >>> >>> On Sat, Jan 30, 2016 at 07:27:22PM +0000, Derek Buitenhuis wrote: >>>> On 1/30/2016 7:15 PM, Timothy Gu wrote: >>>>> FATE passes here on a x86-64 machine with both GCC 4.9.2 and 5.3.1. >>>> >>>> Perhaps this should be restricted to x86? >>> >>> Fair enough. >> >> >> Pushed. >> > > Just to document it, this has caused build breakage in various > scenarios, even in GCC 5.3 (6.1 not tested). > > The latest reported on IRC just today here: > libavcodec/sbrdsp.c: In function 'sbr_neg_odd_64_c': > libavcodec/sbrdsp.c:47:13: internal compiler error: in > vect_analyze_data_ref_accesses, at tree-vect-data-refs.c:2596 > static void sbr_neg_odd_64_c(float *x)
What compile flags? How was ffmpeg configured? I can try to reproduce it and report the bug to gcc. > > There are various other cases which usually involve inline asm when > building with SIMD (ie. --cpu=host) and the optimizer running out of > registers, for example: > libavcodec/x86/cabac.h:192:5: error: 'asm' operand has impossible constraints > > IMHO this feature is not quite ready to be enabled unconditionally in > our code base, and we should re-evaluate this change. > > - Hendrik > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
