http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50640
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-10-06 21:38:36 UTC --- Backtrace Program received signal SIGSEGV, Segmentation fault. mark_all_vars_used_1 (tp=<value optimized out>, walk_subtrees=<value optimized out>, data=<value optimized out>) at ../../work/gcc/tree-flow-inline.h:562 562 ann->used = true; (gdb) bt #0 mark_all_vars_used_1 (tp=<value optimized out>, walk_subtrees=<value optimized out>, data=<value optimized out>) at ../../work/gcc/tree-flow-inline.h:562 #1 0x00000001009ca496 in walk_tree_1 (tp=<value optimized out>, func=<value optimized out>, data=<value optimized out>, pset=<value optimized out>, lh=<value optimized out>) at ../../work/gcc/tree.c:10448 #2 0x00000001009cab23 in walk_tree_1 (tp=<value optimized out>, func=<value optimized out>, data=<value optimized out>, pset=<value optimized out>, lh=<value optimized out>) at ../../work/gcc/tree.c:10526 #3 0x000000010089c1f5 in remove_unused_locals () at ../../work/gcc/tree-ssa-live.c:595 #4 0x00000001006d4afe in execute_function_todo (data=<value optimized out>) at ../../work/gcc/passes.c:1695 #5 0x00000001006d540e in execute_todo (flags=49156) at ../../work/gcc/passes.c:1741 #6 0x00000001006d898a in execute_one_pass (pass=0x100ddb660) at ../../work/gcc/passes.c:2087 #7 0x00000001006d8cdd in execute_pass_list (pass=0x100ddb660) at ../../work/gcc/passes.c:2119 #8 0x00000001006d7d59 in do_per_function_toporder (callback=0x1006d8cc0 <execute_pass_list(opt_pass*)>, data=0x100ddb960) at ../../work/gcc/passes.c:1606 #9 0x00000001006d91cd in execute_ipa_pass_list (pass=0x100ddba80) at ../../work/gcc/passes.c:2437 #10 0x00000001003dfba5 in cgraph_optimize () at ../../work/gcc/cgraphunit.c:2011 #11 0x00000001003e015a in cgraph_finalize_compilation_unit () at ../../work/gcc/cgraphunit.c:1312 #12 0x0000000100668b5d in write_global_declarations () at ../../work/gcc/langhooks.c:303 #13 0x0000000100799a20 in toplev_main (argc=3, argv=0x7fff5fbfd998) at ../../work/gcc/toplev.c:581 #14 0x0000000100001a54 in start ()