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[Bug lto/85132] ffmpeg runtime segfault with lto


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85132

--- Comment #2 from Manuel Lauss <manuel.lauss at googlemail dot com> ---
This is the most minimal ffmpeg config that can trigger the segfault. The
interesting switch is "--enabled-hardcoded-tables".  I use the "mpv" Player
with a standard mp4 video file to trigger it
(https://github.com/mpv-player/mpv/archive/v0.27.2.zip)

configure --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64
--docdir=/usr/share/doc/ffmpeg-3.4.2-r1/html --mandir=/usr/share/man
--enable-share
d --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++
--ar=x86_64-pc-linux-gnu-ar --optflags=-O3 -ggdb -march=znver1 -mtune=znver1
-flto=16 -fno-fat-lto-objects -pipe --disable-static --enable-avfilter
--enable-avresample --disable-stripping --disable-encoders --disable-indev=v4l2
--disable-outdev=v4l2 --disable-indev=alsa --disable-indev=oss --disable
-indev=jack --disable-outdev=alsa --disable-outdev=oss --disable-outdev=sdl
--disable-bzlib --disable-runtime-cpudetect --disable-debug --disable-gcrypt
--disable-gnutls --disable-gmp --enable-gpl --enable-hardco
ded-tables --disable-iconv --disable-lzma --disable-network --disable-opencl
--disable-openssl --disable-postproc --disable-libsmbclient --disable-ffplay
--disable-sdl2 --disable-vaapi --disable-vdpau --disable-x
lib --disable-libxcb --disable-libxcb-shm --disable-libxcb-xfixes
--disable-zlib --disable-libcdio --disable-libiec61883 --disable-libdc1394
--disable-libcaca --disable-openal --disable-opengl --disable-libv4l2 -
-disable-libpulse --disable-libdrm --disable-libopencore-amrwb
--disable-libopencore-amrnb --disable-libfdk-aac --disable-libopenjpeg
--disable-libbluray --disable-libcelt --disable-libgme --disable-libgsm --disa
ble-mmal --disable-libmodplug --disable-libopus --disable-libilbc
--disable-librtmp --disable-libssh --disable-libspeex --disable-librsvg
--disable-libvorbis --disable-libvpx --disable-libzvbi --disable-appkit --
disable-libbs2b --disable-chromaprint --disable-libflite --disable-frei0r
--disable-libfribidi --disable-fontconfig --disable-ladspa --disable-libass
--disable-libfreetype --disable-librubberband --disable-libzmq
 --disable-libzimg --disable-libsoxr --enable-pthreads --disable-armv5te
--disable-armv6 --disable-armv6t2 --disable-neon --disable-vfp --disable-vfpv3
--disable-armv8 --disable-mipsdsp --disable-mipsdspr2 --disa
ble-mipsfpu --disable-altivec --disable-amd3dnow --disable-amd3dnowext
--disable-fma4 --disable-xop --cpu=znver1 --enable-lto --disable-doc
--disable-htmlpages --enable-manpages

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