[Bug tree-optimization/25860] [4.2 Regression] ice with -g -O2 -fPIC

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #5 from rguenth at gcc dot gnu dot org  2006-01-20 10:31 -------
Crashes in PRE:

#0  fancy_abort (
    file=0x8706c14 "../../../src/svn/gcc/gcc/tree-ssa-operands.c", line=1563, 
    function=0x870743d "add_stmt_operand") at diagnostic.c:602
#1  0x0815126d in add_stmt_operand (var_p=0x40194670, s_ann=0x40225ea0, 
    flags=3) at tree-ssa-operands.c:1563
#2  0x0814d55f in get_expr_operands (stmt=0x40194654, expr_p=0x40194670, 
    flags=3) at tree-ssa-operands.c:1065
#3  0x0814b451 in parse_ssa_operands (stmt=0x40194654)
    at tree-ssa-operands.c:739
#4  0x0814b8f6 in build_ssa_operands (stmt=0x40194654)
    at tree-ssa-operands.c:801
#5  0x0814c014 in update_stmt_operands (stmt=0x40194654)
    at tree-ssa-operands.c:842
#6  0x080fd835 in update_stmt (t=0x40194654) at tree-flow-inline.h:280
#7  0x080fd744 in mark_new_vars_to_rename (stmt=0x40194654) at tree-dfa.c:824
#8  0x085fe621 in create_expression_by_pieces (block=0x401952d0, 
    expr=0x887cbc8, stmts=0x40224f18) at tree-ssa-pre.c:2181
#9  0x085fd87c in find_or_generate_expression (block=0x401952d0, 
    expr=0x40192780, stmts=0x40224f18) at tree-ssa-pre.c:2029
#10 0x085fdc75 in create_expression_by_pieces (block=0x401952d0, 
    expr=0x887c1f8, stmts=0x40224f18) at tree-ssa-pre.c:2080
#11 0x085fedfe in insert_into_preds_of_block (block=0x40195370, 
    node=0x887d58c, avail=0x8868710) at tree-ssa-pre.c:2286
#12 0x085ff51a in insert_aux (block=0x40195370) at tree-ssa-pre.c:2490
#13 0x085ff633 in insert_aux (block=0x401952d0) at tree-ssa-pre.c:2522
#14 0x085ff633 in insert_aux (block=0x40195230) at tree-ssa-pre.c:2522
#15 0x085ff6f6 in insert () at tree-ssa-pre.c:2544
#16 0x08603f24 in execute_pre (do_fre=0 '\0') at tree-ssa-pre.c:3597

#2  0x0814d55f in get_expr_operands (stmt=0x40194654, expr_p=0x40194670, 
    flags=3) at tree-ssa-operands.c:1065
1065      class = TREE_CODE_CLASS (code);
(gdb) call debug_generic_expr (stmt)
pretmp.22D.1557_3 = *NoteD.1526_5
(gdb) 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25860