------- Comment #5 from foom at fuhm dot net 2009-10-30 02:42 -------
An error very much like this is also causing a bunch of files in my program to
fail to compile with 4.5 with -O1 and above. I was unable to reduce a simple
test case from my (private) code, though: many changes that seem like they
should be unrelated cause the bug to go away. So I really hope my bug is
actually the same thing as this already-somewhat-reduced test case. :)
I'm using the ubuntu gcc-snapshot 20091018 package, on x86-64.
The error message is a little bit different, so I'm including it below, just in
case you might think it indicates a different underlying cause.
error: edge points to wrong declaration:
<function_decl 0x2ab0adeb6600 _ZNSdD2Ev.clone.5
type <method_type 0x2ab0ae8f5cc0
type <void_type 0x2ab09c4476c0 void asm_written type_6 VOID
align 8 symtab 0 alias set -1 canonical type 0x2ab09c4476c0
pointer_to_this <pointer_type 0x2ab09c447780>>
QI
size <integer_cst 0x2ab09c421840 constant 8>
unit size <integer_cst 0x2ab09c421870 constant 1>
align 8 symtab 0 alias set -1 canonical type 0x2ab09e701240 method
basetype <record_type 0x2ab0a06a9c00 basic_iostream>
arg-types <tree_list 0x2ab0aea8a750 value <pointer_type 0x2ab09e6fdb40>
chain <tree_list 0x2ab09c445960 value <void_type 0x2ab09c4476c0
void>>>
pointer_to_this <pointer_type 0x2ab0a4991cc0>>
addressable used nothrow static in_system_header autoinline decl_5 QI
defer-output file
/usr/lib/gcc-snapshot/lib/gcc/x86_64-linux-gnu/4.5.0/../../../../include/c++/4.5.0/istream
line 798 col 7 align 16 context <record_type 0x2ab0a06a9c00 basic_iostream>
initial <block 0x2ab0aea8cf00> abstract_origin <function_decl 0x2ab09e6f7d00
basic_iostream>
arguments <parm_decl 0x2ab0aea82510 this
type <pointer_type 0x2ab09e6fdcc0 type <record_type 0x2ab0a06a9c00
basic_iostream>
readonly unsigned DI
size <integer_cst 0x2ab09c421bd0 constant 64>
unit size <integer_cst 0x2ab09c421c00 constant 8>
align 64 symtab -1364669056 alias set -1 canonical type
0x2ab09e6fdcc0>
readonly used unsigned DI file
/usr/lib/gcc-snapshot/lib/gcc/x86_64-linux-gnu/4.5.0/../../../../include/c++/4.5.0/istream
line 798 col 23 size <integer_cst 0x2ab09c421bd0 64> unit size <integer_cst
0x2ab09c421c00 8>
align 64 context <function_decl 0x2ab0adeb6600 _ZNSdD2Ev.clone.5>
abstract_origin <parm_decl 0x2ab09e6fe240 this> arg-type <pointer_type
0x2ab09e6fdcc0>>
result <result_decl 0x2ab0acb8cf80 D.395631 type <void_type 0x2ab09c4476c0
void>
used ignored VOID file
/usr/lib/gcc-snapshot/lib/gcc/x86_64-linux-gnu/4.5.0/../../../../include/c++/4.5.0/istream
line 798 col 27
align 8 context <function_decl 0x2ab0adeb6600 _ZNSdD2Ev.clone.5>
abstract_origin <result_decl 0x2ab0ab71c980 D.304296>>
full-name "std::basic_iostream<_CharT, _Traits>::~basic_iostream() [with
_CharT = char, _Traits = std::char_traits<char>]"
pending-inline-info 0x2ab0ab72f000 template-info 0x2ab09e6faf90
struct-function 0x2ab0ab58f6e0>
Instead of: <function_decl 0x2ab09e702400 __base_dtor
type <method_type 0x2ab09e701240
type <void_type 0x2ab09c4476c0 void asm_written type_6 VOID
align 8 symtab 0 alias set -1 canonical type 0x2ab09c4476c0
pointer_to_this <pointer_type 0x2ab09c447780>>
QI
size <integer_cst 0x2ab09c421840 constant 8>
unit size <integer_cst 0x2ab09c421870 constant 1>
align 8 symtab 0 alias set -1 canonical type 0x2ab09e701240 method
basetype <record_type 0x2ab0a06a9c00 basic_iostream>
arg-types <tree_list 0x2ab09e700180 value <pointer_type 0x2ab09e6fdb40>
chain <tree_list 0x2ab09e48ede0 value <pointer_type 0x2ab09d8c9480>
chain <tree_list 0x2ab09c445960 value <void_type 0x2ab09c4476c0
void>>>>
pointer_to_this <pointer_type 0x2ab0a4991cc0>>
addressable used nothrow public static external in_system_header autoinline
decl_5 QI defer-output file
/usr/lib/gcc-snapshot/lib/gcc/x86_64-linux-gnu/4.5.0/../../../../include/c++/4.5.0/istream
line 798 col 7 align 16 context <record_type 0x2ab0a06a9c00 basic_iostream>
initial <block 0x2ab0ab72c2a0> abstract_origin <function_decl 0x2ab09e6f7d00
basic_iostream>
arguments <parm_decl 0x2ab09e703120 this
type <pointer_type 0x2ab09e6fdcc0 type <record_type 0x2ab0a06a9c00
basic_iostream>
readonly unsigned DI
size <integer_cst 0x2ab09c421bd0 constant 64>
unit size <integer_cst 0x2ab09c421c00 constant 8>
align 64 symtab -1364669056 alias set -1 canonical type
0x2ab09e6fdcc0>
readonly unsigned DI file
/usr/lib/gcc-snapshot/lib/gcc/x86_64-linux-gnu/4.5.0/../../../../include/c++/4.5.0/istream
line 798 col 23 size <integer_cst 0x2ab09c421bd0 64> unit size <integer_cst
0x2ab09c421c00 8>
align 64 context <function_decl 0x2ab09e702400 __base_dtor >
abstract_origin <parm_decl 0x2ab09e6fe240 this> arg-type <pointer_type
0x2ab09e6fdcc0>
chain <parm_decl 0x2ab09e703240 __vtt_parm type <pointer_type
0x2ab09d8c9480>
readonly unsigned DI file
/usr/lib/gcc-snapshot/lib/gcc/x86_64-linux-gnu/4.5.0/../../../../include/c++/4.5.0/istream
line 798 col 7 size <integer_cst 0x2ab09c421bd0 64> unit size <integer_cst
0x2ab09c421c00 8>
align 64 context <function_decl 0x2ab09e702400 __base_dtor >
abstract_origin <parm_decl 0x2ab09e6fe2d0 __vtt_parm> arg-type <pointer_type
0x2ab09d8c9480>>>
result <result_decl 0x2ab0ab71c980 D.304296 type <void_type 0x2ab09c4476c0
void>
ignored VOID file
/usr/lib/gcc-snapshot/lib/gcc/x86_64-linux-gnu/4.5.0/../../../../include/c++/4.5.0/istream
line 798 col 27
align 8 context <function_decl 0x2ab09e702400 __base_dtor >>
full-name "std::basic_iostream<_CharT, _Traits>::~basic_iostream() [with
_CharT = char, _Traits = std::char_traits<char>]"
pending-inline-info 0x2ab0ab72f000 template-info 0x2ab09e6faf90
struct-function 0x2ab0ab71ed20 chain <function_decl 0x2ab09e702300
__comp_dtor >>
--
foom at fuhm dot net changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |foom at fuhm dot net
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41290
