Ticket #738 (closed defect: fixed)
libavcodec cannot be built if configured with "--disable-optimizations"
| Reported by: | Andrew | Owned by: | |
|---|---|---|---|
| Priority: | minor | Component: | avcodec |
| Version: | git-master | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
In file included from libavcodec/cabac.h:60,
from libavcodec/cabac.c:31:
libavcodec/x86/cabac.h: In function ‘get_cabac_bypass_sign_x86’:
libavcodec/x86/cabac.h:107: error: can't find a register in class ‘GENERAL_REGS’ while reloading ‘asm’
libavcodec/x86/cabac.h:107: error: ‘asm’ operand has impossible constraints
make: * [libavcodec/cabac.o] Error 1
Attachments
-
config.h
(33.8 KB) -
added by Andrew 18 months ago.
-
config.log
(150.8 KB) -
added by Andrew 18 months ago.
-
config.asm
(25.6 KB) -
added by Andrew 18 months ago.
Change History
comment:1 Changed 18 months ago by Andrew
sorry,
1) ./version.sh
N-35739-ga6c4c0f
2) This error has appeared not later the beginning of December.
comment:2 Changed 18 months ago by cehoyos
- Status changed from new to open
- Reproduced by developer set
Only reproducible for ia32, regression since 599b4c6e.
comment:3 Changed 18 months ago by llogan
- Summary changed from libacvodec cannot be built if it configured with "--disable-optimizations" to libavcodec cannot be built if configured with "--disable-optimizations"
comment:4 Changed 18 months ago by michael
reverting 599b4c6e just causes the next file to fail:
libpostproc/postprocess_template.c: In function ‘dering_MMX2’:
libpostproc/postprocess_template.c:1045:5: error: can’t find a register in class ‘GENERAL_REGS’ while reloading ‘asm’
libpostproc/postprocess_template.c:1045:5: error: ‘asm’ operand has impossible constraints
comment:5 Changed 11 months ago by cehoyos
- Status changed from open to closed
- Resolution set to fixed
Not reproducible anymore.
comment:6 Changed 9 months ago by rogerdpack
- Status changed from closed to reopened
- Resolution fixed deleted
I was just able to reproduce it with
85c830331c36502144e1cc9cf8aa7bd177e1d79d
./configure --enable-memalign-hack --arch=x86 --enable-gpl --enable-libx264 --enable-avisynth --enable-libxvid --target-os=mingw32 --cross-prefix=/home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/bin/i686-w64-mingw32- --pkg-config=pkg-config --enable-libmp3lame --enable-version3 --enable-libvo-aacenc --enable-libvpx --extra-libs=-lws2_32 --extra-libs=-lpthread --enable-zlib --extra-libs=-lwinmm --extra-libs=-lgdi32 --enable-librtmp --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libopenjpeg --enable-gnutls --enable-libgsm --enable-libfreetype --disable-optimizations --enable-runtime-cpudetect
I think the work around is to also use --disable-mmx if you use --disable-optimizations. Is this expected?
Feel free to re-close it if I'm wrong though, and I will research a bit more into it :)
comment:7 Changed 9 months ago by cehoyos
- Status changed from reopened to closed
- Resolution set to fixed
Please do not reopen ancient tickets, I suspect you have found ticket #1695, patches exist.
comment:8 follow-up: ↓ 9 Changed 9 months ago by rogerdpack
Ok I hope #1695 fixes it (and may be related, though I'll admit that the error message I got was that described in this ticket). Real work around for now: configure with --disable-postproc.
comment:9 in reply to: ↑ 8 Changed 9 months ago by cehoyos
Replying to rogerdpack:
Ok I hope #1695 fixes it (and may be related, though I'll admit that the error message I got was that described in this ticket). Real work around for now: configure with --disable-postproc.
--disable-postproc helped with an error compiling cabac.c, are you sure?
