------- Comment #14 from hjl dot tools at gmail dot com 2009-01-08 20:04 ------- This is fixed in 4.4 by IRA:
gnu-3:pts/0[29]> ./xgcc -B./ -O -S /net/gnu-6/export/home/hjl/tmp/gcc_bug.i -fno-ira gcc_bug.c: In function main: gcc_bug.c:23030: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. gnu-3:pts/0[30]> When I enable checking in gcc 4.3, I got [...@gnu-17 gcc]$ ./xgcc -B./ /tmp/gcc_bug.i -S -O -v Reading specs from ./specs Target: i686-pc-linux-gnu Configured with: /net/gnu-13/export/gnu/src/gcc-4.3/gcc/configure --enable-languages=c --disable-bootstrap --enable-checking Thread model: posix gcc version 4.3.3 20090108 (prerelease) [gcc-4_3-branch revision 143188] (GCC) COLLECT_GCC_OPTIONS='-B./' '-S' '-O' '-v' '-mtune=generic' ./cc1 -fpreprocessed /tmp/gcc_bug.i -quiet -dumpbase gcc_bug.i -mtune=generic -auxbase gcc_bug -O -version -o gcc_bug.s GNU C (GCC) version 4.3.3 20090108 (prerelease) [gcc-4_3-branch revision 143188] (i686-pc-linux-gnu) compiled by GNU C version 4.3.2 20081105 (Red Hat 4.3.2-7), GMP version 4.2.2, MPFR version 2.3.2. GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 98cd2bcb358a704593004b875ff80d57 gcc_bug.c: In function main: gcc_bug.c:23030: internal compiler error: in global_alloc, at global.c:438 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. [...@gnu-17 gcc]$ We had an overflow in max_bitnum and things went downhill after that. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38666
