[Bug other/81712] New: gcc does not compile when using glib 2.26 (everything works fine with 2.25)

2017-08-04 Thread igor at chub dot in 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81712

Bug ID: 81712
   Summary: gcc does not compile when using glib 2.26 (everything
works fine with 2.25)
   Product: gcc
   Version: 7.1.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: other
  Assignee: unassigned at gcc dot gnu.org
  Reporter: igor at chub dot in
  Target Milestone: ---

The compilation process stops with the following error message:


./md-unwind-support.h: In function 'x86_64_fallback_frame_state':
./md-unwind-support.h:65:47: error: dereferencing pointer to incomplete type
'struct ucontext'
   sc = (struct sigcontext *) (void *) &uc_->uc_mcontext;
   ^~
make[3]: Leaving directory
`/disk2/build/gcc-7.1.0-build/x86_64-pc-linux-gnu/libgcc'
make[3]: *** [unwind-dw2.o] Error 1
make[2]: Leaving directory `/disk2/build/gcc-7.1.0-build'
make[2]: *** [all-target-libgcc] Error 2
make[1]: Leaving directory `/disk2/build/gcc-7.1.0-build'
make[1]: *** [all] Error 2

[Bug other/81712] gcc does not compile when using glib 2.26 (everything works fine with 2.25)

2017-08-04 Thread igor at chub dot in 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81712

--- Comment #2 from Igor Chubin  ---
Perfect. I'll try to build gcc-7.2-RC-20170802

[Bug other/81712] gcc does not compile when using glib 2.26 (everything works fine with 2.25)

2017-08-04 Thread igor at chub dot in 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81712

--- Comment #3 from Igor Chubin  ---
Perfect. I'll try to build gcc-7.2-RC-20170802

[Bug c++/77952] New: c++11 and gcc: internal compiler error: in convert_move

2016-10-12 Thread igor at chub dot in 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77952

Bug ID: 77952
   Summary: c++11 and gcc: internal compiler error: in
convert_move
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c++
  Assignee: unassigned at gcc dot gnu.org
  Reporter: igor at chub dot in
  Target Milestone: ---

I have the following code:

typedef int  __v8si __attribute__ ((__vector_size__ (32)));

class T
{
public:
   __v8si v;

   __attribute__((target("avx2")))
   T(int p ):v(__extension__ __v8si{p,p,p,p,p,p,p,p}){}

   __attribute__((target("avx2")))
   T(__v8si p):v(p){}

   __attribute__((target("avx2")))
   T operator * ( T  b ) const
   {
  return __builtin_ia32_pmulld256( v , b.v ) ;
   }
};

void h(int *);

__attribute__((target("default")))
void h(int *)
{
}

__attribute__((target("avx2")))
void h(int *)
{
 const T a(1);
 const T b(2);
 const T c (a * b);
}

int main()
{
  return 0;
}

If I try to compile it, I have the following error:

$ gcc test.cpp -std=c++11

test.cpp: In member function 'T T::operator*(T) const':
test.cpp:17:48: internal compiler error: in convert_move, at expr.c:315
   return __builtin_ia32_pmulld256( v , b.v ) ;
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.

I have tried to compile it with various gcc versions: 4.9.2, 5.3 and several
other versions.

Have you any ideas why it happens, and how could I solve the problem?

gcc test.cpp -std=c++11 -mavx2 works.

gcc test.cpp -std=c++11 -O1 works.

but I want to compile the code with -O0