[FFmpeg-trac] #303(undetermined:open): libavcodec/x86/snowdsp_mmx.c has bad inline asm

FFmpeg trac at avcodec.org
Sat Jun 25 08:11:15 CEST 2011


#303: libavcodec/x86/snowdsp_mmx.c has bad inline asm
---------------------------+---------------------------
Reporter:  jeremyhu        |       Owner:
    Type:  defect          |      Status:  open
Priority:  normal          |   Component:  undetermined
 Version:  git-master      |  Resolution:
Keywords:  asm libavcodec  |  Blocked By:
Blocking:                  |  Reproduced:  0
Analyzed:  0               |
---------------------------+---------------------------

Comment (by jeremyhu):

 ffmpeg is git master 5aa8b270db2b88f136ef518b4bdf2b5dfff4a77b

 clang is a recent trunk (3.0) build (svn r133863 or git llvm
 644eb9befc4334f408cb6bed90ec5ed1a30f32a6, clang
 6594942e98e25640f226aba622eb76bcaf0a521c)

 target is darwin/x86_64

 {{{

 $ /opt/llvm/bin/clang -v
 clang version 3.0 (http://llvm.org/git/clang.git
 ffb945ffb5d29b80fd93649c3572b6d87abce3fc)
 Target: x86_64-apple-darwin11.0.0
 Thread model: posix

 ffmpeg/libavcodec $ /opt/llvm/bin/clang -I. -I../  -DHAVE_AV_CONFIG_H
 -D_ISOC99_SOURCE -D_BSD_SOURCE -O2 -march=core2 -pipe -D_LARGEFILE_SOURCE
 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -Ilibdvdread4 -mdynamic-no-
 pic -I. -Iffmpeg -I/opt/local/include/lzo -I/opt/local/include -DPIC
 -I/usr/X11/include -I/opt/local/include/ -I/opt/local/include/SDL
 -D_GNU_SOURCE=1 -D_THREAD_SAFE -I/opt/local/include
 -I/opt/local/include/freetype2 -I/opt/local/include
 -DFF_API_MAX_STREAMS=0  -MD -MP -c -o x86/snowdsp_mmx.o x86/snowdsp_mmx.c
 x86/snowdsp_mmx.c:757:50: error: ambiguous instructions require an
 explicit suffix (could be 'addb', 'addw', 'addl', or 'addq')
              "movdqu %%xmm1, (%%"REG_d")       \n\t"
                                                  ^
 <inline asm>:73:2: note: instantiated into assembly here
         add $8*1, -40(%rbp)
         ^
 x86/snowdsp_mmx.c:735:18: error: ambiguous instructions require an
 explicit suffix (could be 'addb', 'addw', 'addl', or 'addq')
 snow_inner_add_yblock_sse2_end_8
 ^
 x86/snowdsp_mmx.c:677:48: note: instantiated from:
              "sal $1, %%"REG_c"              \n\t"\
                                                ^
 <inline asm>:95:2: note: instantiated into assembly here
         add $8*2, -40(%rbp)
         ^
 2 errors generated.
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/303#comment:2>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list