[Bug c++/37314] [4.2/4.3/4.4 Regression] seg violation

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

------- Comment #4 from rguenth at gcc dot gnu dot org  2008-09-01 15:53 -------
Confirmed.

Program received signal SIGSEGV, Segmentation fault.
0x0000000000cd5495 in strip_array_types (type=0x0)
    at /space/rguenther/src/svn/trunk/gcc/tree.c:5755
5755      while (TREE_CODE (type) == ARRAY_TYPE)
(gdb) up
#1  0x00000000005ad26d in cp_type_quals (type=0x0)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:7108
7108      type = strip_array_types (CONST_CAST_TREE(type));
(gdb) 
#2  0x0000000000585fb8 in original_type (t=0x0)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:236
236       int quals = cp_type_quals (t);
(gdb) 
#3  0x0000000000589136 in merge_types (t1=0x7fd7237a0900, t2=0x0)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:602
602       if (original_type (t1) == original_type (t2))
(gdb) 
#4  0x00000000005895ee in merge_types (t1=0x7fd7237a0a80, t2=0x7fd723765a80)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:628
628             tree target = merge_types (TREE_TYPE (t1), TREE_TYPE (t2));
(gdb) call debug_tree (t1)
 <reference_type 0x7fd7237a0a80
    type <template_type_parm 0x7fd7237a0900 T VOID
        align 8 symtab 0 alias set -1 canonical type 0x7fd7249b0f00
       index 0 level 1 orig_level 1
        reference_to_this <reference_type 0x7fd7237a0a80> chain <type_decl
0x7fd7237a09c0 T>>
    unsigned DI
    size <integer_cst 0x7fd7252fcb10 type <integer_type 0x7fd7253100c0
bit_size_type> constant 64>
    unit size <integer_cst 0x7fd7252fcb40 type <integer_type 0x7fd725310000
long unsigned int> constant 8>
    align 64 symtab 0 alias set -1 canonical type 0x7fd723fdf240>
(gdb) call debug_tree (t2)
 <typename_type 0x7fd723765a80 reference type_0 type_6 VOID
    align 8 symtab 0 alias set -1 structural equality context <record_type
0x7fd72375d9c0 Cdeque>
    chain <type_decl 0x7fd723765b40 reference>>


#0  0x0000000000cd5495 in strip_array_types (type=0x0)
    at /space/rguenther/src/svn/trunk/gcc/tree.c:5755
#1  0x00000000005ad26d in cp_type_quals (type=0x0)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:7108
#2  0x0000000000585fb8 in original_type (t=0x0)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:236
#3  0x0000000000589136 in merge_types (t1=0x7fd7237a0900, t2=0x0)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:602
#4  0x00000000005895ee in merge_types (t1=0x7fd7237a0a80, t2=0x7fd723765a80)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:628
#5  0x0000000000589d73 in merge_types (t1=0x7fd7237a0b40, t2=0x7fd72376c300)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:675
#6  0x000000000058a454 in merge_types (t1=0x7fd7237a0b40, t2=0x7fd72376c300)
    at /space/rguenther/src/svn/trunk/gcc/cp/typeck.c:723
#7  0x000000000042f5ca in duplicate_decls (newdecl=0x7fd72377b400, 
    olddecl=0x7fd72376a500, newdecl_is_friend=0 '\0')
    at /space/rguenther/src/svn/trunk/gcc/cp/decl.c:1703
#8  0x000000000044cb25 in grokfndecl (ctype=0x7fd7237650c0, 
    type=0x7fd7237a0cc0, declarator=0x7fd72530e780, parms=0x7fd72379e360, 
    orig_declarator=0x7fd72530e780, virtualp=0, flags=NO_SPECIAL, quals=0, 
    raises=0x0, check=1, friendp=0, publicp=1, inlinep=0, sfk=sfk_none, 
    funcdef_flag=1 '\001', template_count=1, in_namespace=0x0, 
    attrlist=0x7fff2d43db28)
    at /space/rguenther/src/svn/trunk/gcc/cp/decl.c:6802
#9  0x00000000004568e2 in grokdeclarator (declarator=0x1746bf0, 
    declspecs=0x7fff2d43dd00, decl_context=NORMAL, initialized=1, 
    attrlist=0x7fff2d43db28)
    at /space/rguenther/src/svn/trunk/gcc/cp/decl.c:9255
#10 0x000000000046900f in start_function (declspecs=0x7fff2d43dd00, 
    declarator=0x1746c70, attrs=0x0)
    at /space/rguenther/src/svn/trunk/gcc/cp/decl.c:11698
#11 0x00000000005717a4 in
cp_parser_function_definition_from_specifiers_and_declarator
(parser=0x7fd724a137d0, decl_specifiers=0x7fff2d43dd00, attributes=0x0, 
    declarator=0x1746c70)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:17336
#12 0x0000000000568b31 in cp_parser_init_declarator (parser=0x7fd724a137d0, 
    decl_specifiers=0x7fff2d43dd00, checks=0x0, 
    function_definition_allowed_p=1 '\001', member_p=0 '\0', 
    declares_class_or_enum=0, function_definition_p=0x7fff2d43dcff "\001")
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:12584
#13 0x00000000005721f8 in cp_parser_single_declaration (parser=0x7fd724a137d0, 
    checks=0x0, member_p=0 '\0', explicit_specialization_p=0 '\0', 
    friend_p=0x7fff2d43ddb7 "")
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:17682
#14 0x0000000000571b94 in cp_parser_template_declaration_after_export (
    parser=0x7fd724a137d0, member_p=0 '\0')
---Type <return> to continue, or q <return> to quit---
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:17535
#15 0x000000000056434a in cp_parser_template_declaration (
    parser=0x7fd724a137d0, member_p=0 '\0')
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:9488
#16 0x00000000005624fd in cp_parser_declaration (parser=0x7fd724a137d0)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:7884
#17 0x0000000000562298 in cp_parser_declaration_seq_opt (parser=0x7fd724a137d0)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:7815
#18 0x0000000000567fd9 in cp_parser_namespace_body (parser=0x7fd724a137d0)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:12028
#19 0x0000000000567f9f in cp_parser_namespace_definition (
    parser=0x7fd724a137d0)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:12007
#20 0x00000000005625c5 in cp_parser_declaration (parser=0x7fd724a137d0)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:7912
#21 0x0000000000562298 in cp_parser_declaration_seq_opt (parser=0x7fd724a137d0)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:7815
#22 0x000000000055ada9 in cp_parser_translation_unit (parser=0x7fd724a137d0)
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:3031
#23 0x000000000057bdfd in c_parse_file ()
    at /space/rguenther/src/svn/trunk/gcc/cp/parser.c:21886


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |blocker
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |4.1.2 4.2.0 4.2.4 4.3.2
                   |                            |4.4.0
      Known to work|                            |4.0.4 4.1.1
   Last reconfirmed|0000-00-00 00:00:00         |2008-09-01 15:53:55
               date|                            |
            Summary|seg violation               |[4.2/4.3/4.4 Regression] seg
                   |                            |violation
   Target Milestone|---                         |4.2.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37314