[gstreamer-bugs] [Bug 608209] New: [videomixer] blend_mmx.h:173: Error: can't encode register '%ah' in an instruction requiring REX prefix

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=608209
  GStreamer | gst-plugins-good | git

           Summary: [videomixer] blend_mmx.h:173: Error: can't encode
                    register '%ah' in an instruction requiring REX prefix
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: t.i.m at zen.co.uk
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


When compiling against a core with debug logging disabled, I get these errors:

tpm at zingle:~/gst/no-debug/gst-plugins-good/gst/videomixer$ make
  CC    videomixer.o
  CC    blend.o
blend_mmx.h: Assembler messages:
blend_mmx.h:173: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
blend_mmx.h:174: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
blend_mmx.h:173: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
blend_mmx.h:174: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
blend_mmx.h:173: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
blend_mmx.h:173: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
blend_mmx.h:173: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
blend_mmx.h:174: Error: can't encode register '%ah' in an instruction requiring
REX prefix.
make: *** [libgstvideomixer_la-blend.lo] Error 1

Easy to reproduce even with a debuglog-enabled core by doing

 $ cd gst-plugins-good/gst/videomixer/
 $ make ERROR_CFLAGS='-DGST_DISABLE_GST_DEBUG'

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