[Bug c++/44040] New: [4.5 regression] ICE: cc1plus segmentation fault

[Bug c++/44040] New: [4.5 regression] ICE: cc1plus segmentation fault

[doko at ubuntu dot com]

seen with 4.5 20100508:

g++ -c Abs.ii

In file included from
/scratch/packages/tmp/m/freemat-4.0/libs/libCore/Abs.cpp:20:0:
/scratch/packages/tmp/m/freemat-4.0/libs/libFreeMat/Operators.hpp: In function
'Array DotOp(const Array&, const Array&, DataC
lass)':
/scratch/packages/tmp/m/freemat-4.0/libs/libFreeMat/Operators.hpp:158:49:
error: cannot call constructor 'Array::Array' direc
tly
/scratch/packages/tmp/m/freemat-4.0/libs/libFreeMat/Operators.hpp:158:49:
error:   for a function-style cast, remove the redu
ndant '::Array'
/scratch/packages/tmp/m/freemat-4.0/libs/libFreeMat/Operators.hpp:166:49:
error: cannot call constructor 'Array::Array' direc
tly
/scratch/packages/tmp/m/freemat-4.0/libs/libFreeMat/Operators.hpp:166:49:
error:   for a function-style cast, remove the redu
ndant '::Array'
[...]

Program received signal SIGSEGV, Segmentation fault.
tsubst_baselink (baselink=0x0, object_type=0x0, args=0x7ffff2d01030,
complain=3, in_decl=0x7ffff3051730)
    at ../../src/gcc/cp/pt.c:10682
10682       if (BASELINK_P (baselink))
(gdb) bt
#0  tsubst_baselink (baselink=0x0, object_type=0x0, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730) at ../../src/gcc/cp/pt.c:10682
#1  0x0000000000729879 in tsubst_copy_and_build (t=0x7ffff30583c0,
args=0x7ffff2d01030, complain=3,
    in_decl=0x7ffff3051730, function_p=1 '\001',
integral_constant_expression_p=0 '\000')
    at ../../src/gcc/cp/pt.c:12853
#2  0x0000000000728148 in tsubst_copy_and_build (t=0x7ffff3247af8,
args=0x7ffff2d01030, complain=3,
    in_decl=0x7ffff3051730, function_p=0 '\000',
integral_constant_expression_p=0 '\000')
    at ../../src/gcc/cp/pt.c:12354
#3  0x0000000000728d38 in tsubst_copy_and_build (t=0x7ffff3057900,
args=0x7ffff2d01030, complain=3,
    in_decl=0x7ffff3051730, function_p=<value optimized out>,
integral_constant_expression_p=0 '\000')
    at ../../src/gcc/cp/pt.c:12234
#4  0x000000000070e7bf in tsubst_expr (t=0x7ffff3057900, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11938
#5  0x000000000070f2ec in tsubst_expr (t=0x7ffff3058450, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11537
#6  0x000000000070f1ae in tsubst_expr (t=0x7ffff3057800, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11679
#7  0x000000000070f40a in tsubst_expr (t=0x7ffff30576c0, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11659
#8  0x000000000070f1ae in tsubst_expr (t=0x7ffff3057680, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11679
#9  0x000000000070f40a in tsubst_expr (t=0x7ffff3057540, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11659
#10 0x000000000070e844 in tsubst_expr (t=<value optimized out>,
args=0x7ffff2d01030, complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11523
#11 0x000000000070f1ae in tsubst_expr (t=0x7ffff3050980, args=0x7ffff2d01030,
complain=3,
    in_decl=0x7ffff3051730, integral_constant_expression_p=0 '\000') at
../../src/gcc/cp/pt.c:11679
#12 0x0000000000720bed in instantiate_decl (d=<value optimized out>,
defer_ok=1,
    expl_inst_class_mem_p=0 '\000') at ../../src/gcc/cp/pt.c:16862
#13 0x000000000074817c in instantiate_pending_templates (retries=<value
optimized out>)
    at ../../src/gcc/cp/pt.c:16959
#14 0x0000000000777438 in cp_write_global_declarations () at
../../src/gcc/cp/decl2.c:3546
#15 0x0000000000a5e1a4 in compile_file (argc=13, argv=0x7fffffffe608) at
../../src/gcc/toplev.c:1065
#16 do_compile (argc=13, argv=0x7fffffffe608) at ../../src/gcc/toplev.c:2417
#17 toplev_main (argc=13, argv=0x7fffffffe608) at ../../src/gcc/toplev.c:2459
#18 0x00007ffff6179abd in __libc_start_main () from /lib/libc.so.6
#19 0x00000000006a830d in _start ()


-- 
           Summary: [4.5 regression] ICE: cc1plus segmentation fault
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: doko at ubuntu dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040

[Bug c++/44040] [4.5 regression] ICE: cc1plus segmentation fault

[doko at ubuntu dot com]

------- Comment #1 from doko at ubuntu dot com  2010-05-08 14:33 -------
Created an attachment (id=20603)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20603&action=view)
preprocessed source


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040

[Bug c++/44040] [4.5 Regression] ICE: cc1plus segmentation fault

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.5 regression] ICE:       |[4.5 Regression] ICE:
                   |cc1plus segmentation fault  |cc1plus segmentation fault
   Target Milestone|---                         |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040

[Bug c++/44040] [4.5/4.6 Regression] ICE: cc1plus segmentation fault

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2010-05-19 12:57 -------
Confirmed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Priority|P3                          |P5
   Last reconfirmed|0000-00-00 00:00:00         |2010-05-19 12:57:55
               date|                            |
            Summary|[4.5 Regression] ICE:       |[4.5/4.6 Regression] ICE:
                   |cc1plus segmentation fault  |cc1plus segmentation fault


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040

[Bug c++/44040] [4.5/4.6 Regression] ICE: cc1plus segmentation fault

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-06-27 08:27 -------
Reduced testcase:

class Array {
    template <typename T, class Op>
    static inline Array UnaryOp(const Array &Ain) {
            return Array::Array();
    }
    template <class Op> static inline Array UnaryOp(const Array &Ain) {
        return UnaryOp<float,Op>(Ain);
    }
    struct OpAbs {
        Array AbsFunction(int nargout, const Array& arg) {
            return UnaryOp<OpAbs>(arg);
        }
    };
};

does not exhibit the repeated error though.  Same backtrace with less
tsubst_expr calls though.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040

[Bug c++/44040] [4.5/4.6 Regression] ICE: cc1plus segmentation fault

[hjl dot tools at gmail dot com]

------- Comment #4 from hjl dot tools at gmail dot com  2010-06-28 00:53 -------
(In reply to comment #3)
> Reduced testcase:
> 
> class Array {
>     template <typename T, class Op>
>     static inline Array UnaryOp(const Array &Ain) {
>             return Array::Array();
>     }
>     template <class Op> static inline Array UnaryOp(const Array &Ain) {
>         return UnaryOp<float,Op>(Ain);
>     }
>     struct OpAbs {
>         Array AbsFunction(int nargout, const Array& arg) {
>             return UnaryOp<OpAbs>(arg);
>         }
>     };
> };
> 
> does not exhibit the repeated error though.  Same backtrace with less
> tsubst_expr calls though.
> 

It is caused by revision 154403:

http://gcc.gnu.org/ml/gcc-cvs/2009-11/msg00624.html


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at redhat dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040

[Bug c++/44040] [4.5/4.6 Regression] ICE: cc1plus segmentation fault

[paolo dot carlini at oracle dot com]

------- Comment #5 from paolo dot carlini at oracle dot com  2010-06-28 16:00 -------
It looks like PR44039 is the same issue, my patchlet there fixes this one too.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040

[Bug c++/44040] [4.5/4.6 Regression] ICE: cc1plus segmentation fault

[jason at gcc dot gnu dot org]

------- Comment #6 from jason at gcc dot gnu dot org  2010-06-30 18:28 -------


*** This bug has been marked as a duplicate of 44039 ***


-- 

jason at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44040