Hi there,
I contacted upstream to let them know the issue.
A couple of commits were pushed to their git [0].
However, I now hit an ICE (internal compiler error):
[...]
[ 38%] Building CXX object CMakeFiles/sdrbase.dir/sdrbase/gui/glspectrum.cpp.o
/usr/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_MULTIMEDIA_LIB
-DQT_NETWORK_LIB -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_WIDGETS_LIB
-DUSE_FFTW -Dsdrangelove_EXPORTS -g -O2 -fstack-protector-strong
-Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -O3 -DNDEBUG
-fPIC -isystem /usr/include/mipsel-linux-gnu/qt5 -isystem
/usr/include/mipsel-linux-gnu/qt5/QtCore -isystem
/usr/lib/mipsel-linux-gnu/qt5/mkspecs/linux-g++ -isystem
/usr/include/mipsel-linux-gnu/qt5/QtWidgets -isystem
/usr/include/mipsel-linux-gnu/qt5/QtGui -isystem
/usr/include/mipsel-linux-gnu/qt5/QtOpenGL -isystem
/usr/include/mipsel-linux-gnu/qt5/QtMultimedia -isystem
/usr/include/mipsel-linux-gnu/qt5/QtNetwork
-I/tmp/buildd/sdrangelove-2test2/obj-mipsel-linux-gnu
-I/tmp/buildd/sdrangelove-2test2/include
-I/tmp/buildd/sdrangelove-2test2/include-gpl -fPIC -o
CMakeFiles/sdrbase.dir/sdrbase/gui/glspectrum.cpp.o -c
/tmp/buildd/sdrangelove-2test2/sdrbase/gui/glspectrum.cpp
/tmp/buildd/sdrangelove-2test2/sdrbase/gui/glspectrum.cpp: In member
function 'void GLSpectrum::applyChanges()':
/tmp/buildd/sdrangelove-2test2/sdrbase/gui/glspectrum.cpp:1154:1:
error: insn does not satisfy its constraints:
}
^
(call_insn 846 845 2999 73 (parallel [
(call (mem:SI (reg:SI 1005) [0 setRange S4 A32])
(const_int 16 [0x10]))
(clobber (reg:SI 31 $31))
]) /tmp/buildd/sdrangelove-2test2/sdrbase/gui/glspectrum.cpp:915
594 {call_internal}
(expr_list:REG_DEAD (reg:SI 1005)
(expr_list:REG_DEAD (reg:SF 7 $7)
(expr_list:REG_DEAD (reg:SF 6 $6)
(expr_list:REG_DEAD (reg:SI 5 $5)
(expr_list:REG_DEAD (reg:SI 4 $4)
(expr_list:REG_EH_REGION (const_int 2 [0x2])
(nil)))))))
(expr_list (use (reg:SI 79 $fakec))
(expr_list (use (reg:SI 28 $28))
(expr_list:SF (use (reg:SF 7 $7))
(expr_list:SF (use (reg:SF 6 $6))
(expr_list:SI (use (reg:SI 5 $5))
(expr_list:SI (use (reg:SI 4 $4))
(nil))))))))
/tmp/buildd/sdrangelove-2test2/sdrbase/gui/glspectrum.cpp:1154:1:
internal compiler error: in extract_constrain_insn_cached, at
recog.c:2117
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
The bug is not reproducible, so it is likely a hardware or OS problem.
CMakeFiles/sdrbase.dir/build.make:713: recipe for target
'CMakeFiles/sdrbase.dir/sdrbase/gui/glspectrum.cpp.o' failed
make[3]: *** [CMakeFiles/sdrbase.dir/sdrbase/gui/glspectrum.cpp.o] Error 1
make[3]: Leaving directory '/tmp/buildd/sdrangelove-2test2/obj-mipsel-linux-gnu'
CMakeFiles/Makefile2:130: recipe for target 'CMakeFiles/sdrbase.dir/all' failed
[...]
So, given the ICE is not reproducible I'm giving up :-(
We can revisit this in future versions of GCC.
[0] http://cgit.osmocom.org/sdrangelove/
--
Arturo Borrero González
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