gcc5 -O3 -v -save-temps

zino@mytesting:~/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp$ /home/zino/buildroot/output/host/usr/bin/microblaze-buildroot-linux-gnu-g++ -v -save-te
mps  -DFLANN_STATIC -D_FLANN_VERSION=1.8.4 -I/home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE
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Thread model: posix
gcc version 5.3.0 (Buildroot 2016.02-git-00894-gaa112f2)
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COLLECT_GCC_OPTIONS='-v' '-save-temps' '-D' 'FLANN_STATIC' '-D' '_FLANN_VERSION=1.8.4' '-I' '/home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp' '-D' '_LARGEFILE_SOURCE' '-D' '_LARGEFILE64_SOURCE' '-D' '_FILE_OFFSET_BITS=64' '-O3' '-D' 'NDEBUG' '-Wall' '-Wno-unknown-pragmas' '-Wno-unused-function' '-fPIC' '-o' 'CMakeFiles/flann_s.dir/flann/flann.cpp.o' '-c' '-shared-libgcc'
 /home/zino/buildroot/output/host/usr/libexec/gcc/microblaze-buildroot-linux-gnu/5.3.0/cc1plus -fpreprocessed flann.ii -quiet -dumpbase flann.cpp -auxbase-strip CMakeFiles/flann_s.dir/flann/flann.cpp.o -O3 -Wall -Wno-unknown-pragmas -Wno-unused-function -version -fPIC -o flann.s
GNU C++ (Buildroot 2016.02-git-00894-gaa112f2) version 5.3.0 (microblaze-buildroot-linux-gnu)
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GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C++ (Buildroot 2016.02-git-00894-gaa112f2) version 5.3.0 (microblaze-buildroot-linux-gnu)
        compiled by GNU C version 5.3.1 20160101, GMP version 6.1.0, MPFR version 3.1.3, MPC version 1.0.3
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 72192880c32f68d631b343345080a169
In file included from /home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp/flann/algorithms/all_indices.h:35:0,
                 from /home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp/flann/flann.hpp:45,
                 from /home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp/flann/flann.h:476,
                 from /home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp/flann/flann.cpp:31:
/home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp/flann/algorithms/nn_index.h: In member function ‘int flann::NNIndex<Distance>::knnSearch(const flann::Matrix<typename Distance::ElementType>&, flann::Matrix<unsigned int>&, flann::Matrix<typename Distance::ResultType>&, size_t, const flann::SearchParams&) const [with Distance = flann::KL_Divergence<double>; typename Distance::ElementType = double; typename Distance::ResultType = double; size_t = unsigned int]’:
/home/zino/buildroot/output/build/flann-04b4a56533faf8c8228d011d05ba376038364b49/src/cpp/flann/algorithms/nn_index.h:357:5: internal compiler error: in gen_reg_rtx, at emit-rtl.c:1027
     }
     ^
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