only since some days I get a segfault with this backtrace: gdb cc1 r -fpreprocessed agfa_cl20.i -dumpbase agfa_cl20.i -mtune=generic -auxbase agfa_cl20 -g -O2 -Wall -Wmissing-declarations -version -fstack-protector -fPIC -o /tmp/ccqJyq0F.sQuit .... Program received signal SIGSEGV, Segmentation fault. bitmap_elt_clear_from (head=0x10eb670, elt=0x111d360) at /home/marcus/projects/gcc.trunk/gcc/bitmap.c:260 260 prev = elt->prev; (gdb) bt #0 bitmap_elt_clear_from (head=0x10eb670, elt=0x111d360) at /home/marcus/projects/gcc.trunk/gcc/bitmap.c:260 #1 0x000000000049f766 in bitmap_obstack_free (map=0x10eb670) at /home/marcus/projects/gcc.trunk/gcc/bitmap.c:296 #2 0x00000000007fa62c in bitmap_set_free (set=0x10e7bd8) at /home/marcus/projects/gcc.trunk/gcc/tree-ssa-pre.c:621 #3 0x00000000007fa99d in fini_pre () at /home/marcus/projects/gcc.trunk/gcc/tree-ssa-pre.c:2029 #4 0x0000000000806e68 in execute_pre (do_fre=0 '\0') at /home/marcus/projects/gcc.trunk/gcc/tree-ssa-pre.c:4062 #5 0x000000000080733b in do_pre () at /home/marcus/projects/gcc.trunk/gcc/tree-ssa-pre.c:4072 #6 0x000000000065de4a in execute_one_pass (pass=0xfcdd60) at /home/marcus/projects/gcc.trunk/gcc/passes.c:1292 #7 0x000000000065e085 in execute_pass_list (pass=0xfcdd60) at /home/marcus/projects/gcc.trunk/gcc/passes.c:1342 #8 0x000000000065e09d in execute_pass_list (pass=0xfcc920) at /home/marcus/projects/gcc.trunk/gcc/passes.c:1343 #9 0x000000000074cd16 in tree_rest_of_compilation (fndecl=0x2b60b418d000) at /home/marcus/projects/gcc.trunk/gcc/tree-optimize.c:425 #10 0x00000000008fbe12 in cgraph_expand_function (node=0x2b60b403df00) at /home/marcus/projects/gcc.trunk/gcc/cgraphunit.c:1158 #11 0x00000000008fe884 in cgraph_optimize () at /home/marcus/projects/gcc.trunk/gcc/cgraphunit.c:1221 #12 0x0000000000416b82 in c_write_global_declarations () at /home/marcus/projects/gcc.trunk/gcc/c-decl.c:8066 #13 0x00000000006e3117 in toplev_main (argc=<value optimized out>, argv=<value optimized out>) at /home/marcus/projects/gcc.trunk/gcc/toplev.c:976 #14 0x00002b60b3a3cb54 in __libc_start_main () from /lib64/libc.so.6 #15 0x00000000004040f9 in _start ()
-- Summary: occasional segfault in bitmap_elt_clear_from Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: marcus at jet dot franken dot de GCC build triplet: x86_64-unknown-linux-gnu GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36596