[Bug c++/22488] [4.1 Regression] ICE: in first_vi_for_offset, at tree-ssa-structalias.c:2585 with -O3

["micis at gmx dot de" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From micis at gmx dot de  2005-08-29 12:07 -------
With the actual snapshot I get a segfault:

GNU C++ version 4.1.0 20050826 (experimental) (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.1.0 20050826 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 48dcabcf3efa906449d3613e11227389

Program received signal SIGSEGV, Segmentation fault.
do_structure_copy (lhsop=Variable "lhsop" is not available.
) at ../../gcc-4.1-20050826/gcc/tree-ssa-structalias.c:2320
2320          temprhs.var = q->id;
(gdb) where
#0  do_structure_copy (lhsop=Variable "lhsop" is not available.
) at ../../gcc-4.1-20050826/gcc/tree-ssa-structalias.c:2320
#1  0x000000000086dad2 in find_func_aliases (t=0x2a9a184460, ai=Variable "ai" 
is not available.
) at ../../gcc-4.1-20050826/gcc/tree-ssa-structalias.c:2808
#2  0x000000000086f582 in compute_points_to_sets (ai=0x12801a0) at ../../gcc-
4.1-20050826/gcc/tree-ssa-structalias.c:3620
#3  0x0000000000580aea in compute_may_aliases () at ../../gcc-4.1-
20050826/gcc/tree-ssa-alias.c:263
#4  0x0000000000852f3c in execute_one_pass (pass=0xc0cfe0) at ../../gcc-4.1-
20050826/gcc/passes.c:808
#5  0x000000000085306c in execute_pass_list (pass=0xc0cfe0) at ../../gcc-4.1-
20050826/gcc/passes.c:840
#6  0x000000000085307e in execute_pass_list (pass=0xc0caa0) at ../../gcc-4.1-
20050826/gcc/passes.c:841
#7  0x000000000054be65 in tree_rest_of_compilation (fndecl=0x2a963d5100) 
at ../../gcc-4.1-20050826/gcc/tree-optimize.c:419
#8  0x00000000004cab48 in expand_body (fn=0x2a963d5100) at ../../gcc-4.1-
20050826/gcc/cp/semantics.c:3008
#9  0x0000000000897e26 in cgraph_expand_function (node=0x2a9a65a9a0) 
at ../../gcc-4.1-20050826/gcc/cgraphunit.c:1037
#10 0x0000000000899f3b in cgraph_optimize () at ../../gcc-4.1-
20050826/gcc/cgraphunit.c:1103
#11 0x000000000047b86f in cp_finish_file () at ../../gcc-4.1-
20050826/gcc/cp/decl2.c:3102
#12 0x0000000000524e7a in c_common_parse_file 
(set_yydebug=Variable "set_yydebug" is not available.
) at ../../gcc-4.1-20050826/gcc/c-opts.c:1117
#13 0x0000000000826c4e in toplev_main (argc=Variable "argc" is not available.
) at ../../gcc-4.1-20050826/gcc/toplev.c:971
#14 0x0000003ef781bf6a in __libc_start_main () from /lib64/tls/libc.so.6

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22488