[Bug lto/51325] New: [4.7 Regression] ICE with -flto and union in template

[Bug lto/51325] New: [4.7 Regression] ICE with -flto and union in template

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51325

             Bug #: 51325
           Summary: [4.7 Regression] ICE with -flto and union in template
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: reichelt@gcc.gnu.org


The following valid code snippet triggers an ICE on trunk when compiled with
"-flto -g":

============================
template<int> void foo()
{
  union { int i; };
  i = 0;
}

void bar()
{
  foo<0>();
}
============================

bug.cc: In function 'foo<0>()void':
bug.cc:5:1: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]

[Bug lto/51325] [4.7 Regression] ICE with -flto and union in template

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51325

Volker Reichelt <reichelt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
   Target Milestone|---                         |4.7.0

[Bug lto/51325] [4.7 Regression] ICE with -flto and union in template

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51325

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011-11-30
     Ever Confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-11-30 23:27:59 UTC ---
Backtrace:
#0  0x000000000053c034 in primary_template_instantiation_p (t=0x7ffff75687e0)
at /home/apinski/src/gcc-fsf/local//gcc/gcc/cp/pt.c:2874
#1  0x000000000053c8be in get_primary_template_innermost_parameters
(t=0x7ffff75687e0) at /home/apinski/src/gcc-fsf/local//gcc/gcc/cp/pt.c:2902
#2  0x00000000007f402a in generic_type_p (type=0x7ffff75687e0,
context_die=Unhandled dwarf expression opcode 0xf3
) at /home/apinski/src/gcc-fsf/local//gcc/gcc/dwarf2out.c:20045
#3  schedule_generic_params_dies_gen (type=0x7ffff75687e0,
context_die=Unhandled dwarf expression opcode 0xf3
) at /home/apinski/src/gcc-fsf/local//gcc/gcc/dwarf2out.c:20055
#4  gen_struct_or_union_type_die (type=0x7ffff75687e0, context_die=Unhandled
dwarf expression opcode 0xf3
) at /home/apinski/src/gcc-fsf/local//gcc/gcc/dwarf2out.c:18594
#5  gen_tagged_type_die (type=0x7ffff75687e0, context_die=Unhandled dwarf
expression opcode 0xf3
) at /home/apinski/src/gcc-fsf/local//gcc/gcc/dwarf2out.c:18802
#6  gen_tagged_type_die (type=0x7ffff75687e0, context_die=Unhandled dwarf
expression opcode 0xf3
) at /home/apinski/src/gcc-fsf/local//gcc/gcc/dwarf2out.c:18745


Confirmed.

[Bug lto/51325] [4.7 Regression] ICE with -flto and union in template

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51325

Zdenek Sojka <zsojka at seznam dot cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zsojka at seznam dot cz

--- Comment #2 from Zdenek Sojka <zsojka at seznam dot cz> 2011-12-03 20:51:37 UTC ---
Probably the same as PR51262

[Bug lto/51325] [4.7 Regression] ICE with -flto -g and union in template

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51325

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE
            Summary|[4.7 Regression] ICE with   |[4.7 Regression] ICE with
                   |-flto and union in template |-flto -g and union in
                   |                            |template

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-06 14:21:43 UTC ---
Dup.

*** This bug has been marked as a duplicate of bug 51262 ***