Current g++ produces an ICE when trying to compile the attached test case. Sorry, I had no time today to try a reduction, so it is very large. I'll try to find a shorter testcase as soon as I have more time.
BTW, which component should I use for bug reports concerning mudflap itself (not libmudflap)? ~/data/planck/LevelS>g++ -v -c -O -fmudflap testcase.ii Using built-in specs. Configured with: /scratch/gcc/configure --quiet --prefix=/afs/mpa/data/martin/ugcc --enable-languages=c++,f95 --with-gmp=/afs/mpa/data/martin/mygmp Thread model: posix gcc version 4.0.0 20050105 (experimental) /afs/mpa/data/martin/ugcc/libexec/gcc/i686-pc-linux-gnu/4.0.0/cc1plus -fpreprocessed testcase.ii -quiet -dumpbase testcase.ii -mtune=pentiumpro -auxbase testcase -O -version -fmudflap -fno-builtin -fno-merge-constants -o /tmp/ccrlkYrZ.s GNU C++ version 4.0.0 20050105 (experimental) (i686-pc-linux-gnu) compiled by GNU C version 4.0.0 20050105 (experimental). GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 cxxsupport/fitshandle.cc: In member function 'void fitshandle::init_bintab()': cxxsupport/fitshandle.cc:99: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. -- Summary: [mudflap] ICE when compiling with -fmudflap -O Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: other AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: martin at mpa-garching dot mpg dot de CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19266