[Bug tree-optimization/69184] [6 Regression] ICE in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2685

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69184

--- Comment #5 from vries at gcc dot gnu.org ---
(In reply to Sujoy from comment #3)
> For the previous
> test case you had sent, I see a different failure with trunk -
> 
> gcc -w -O3 -floop-interchange pr69184.c
> pr69184.c: In function âfunc_27â:
> pr69184.c:27:1: internal compiler error: in outer_projection_mupa, at
> graphite-sese-to-poly.c:1175
>  func_27 (void)
>  ^~~
> 0x11f5b95 outer_projection_mupa
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1175
> 0x11f5b95 add_loop_schedule
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1223
> 0x11f6063 build_schedule_loop_nest
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1319
> 0x11f610d build_schedule_loop
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1257
> 0x11f6063 build_schedule_loop_nest
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1319
> 0x11f855e build_original_schedule
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1337
> 0x11f855e build_poly_scop(scop*)
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1368
> 0x11e20d8 graphite_transform_loops()
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite.c:319
> 0x11e2680 graphite_transforms
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite.c:356
> 0x11e2680 execute
> /wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite.c:433
> Please submit a full bug report,
> with preprocessed source if appropriate.
> Please include the complete backtrace with any bug report.
> See  for instructions.

Presumably a duplicate of PR69728 - '[6 Regression] internal compiler error: in
outer_projection_mupa, at graphite-sese-to-poly.c:1175'

[Bug tree-optimization/69184] [6 Regression] ICE in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2685

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69184

vries at gcc dot gnu.org changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-03-15
 CC||vries at gcc dot gnu.org
 Ever confirmed|0   |1

--- Comment #4 from vries at gcc dot gnu.org ---
(In reply to Sujoy from comment #3)
> Hi,
>  I see the same error on Linux/X86 for the new test case.

Me too. Confirmed.

[Bug tree-optimization/69184] [6 Regression] ICE in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2685

[ssaraswati at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69184

Sujoy  changed:

   What|Removed |Added

 CC||ssaraswati at gmail dot com

--- Comment #3 from Sujoy  ---
Hi,
 I see the same error on Linux/X86 for the new test case. For the previous test
case you had sent, I see a different failure with trunk -

gcc -w -O3 -floop-interchange pr69184.c
pr69184.c: In function âfunc_27â:
pr69184.c:27:1: internal compiler error: in outer_projection_mupa, at
graphite-sese-to-poly.c:1175
 func_27 (void)
 ^~~
0x11f5b95 outer_projection_mupa
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1175
0x11f5b95 add_loop_schedule
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1223
0x11f6063 build_schedule_loop_nest
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1319
0x11f610d build_schedule_loop
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1257
0x11f6063 build_schedule_loop_nest
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1319
0x11f855e build_original_schedule
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1337
0x11f855e build_poly_scop(scop*)
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite-sese-to-poly.c:1368
0x11e20d8 graphite_transform_loops()
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite.c:319
0x11e2680 graphite_transforms
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite.c:356
0x11e2680 execute
/wsp2/sujoys/gcc/gcc_ssh_trunk/gcc/graphite.c:433
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See  for instructions.

[Bug tree-optimization/69184] [6 Regression] ICE in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2685

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69184

--- Comment #2 from ktkachov at gcc dot gnu.org ---
Smaller testcase for -Ofast -floop-interchange on aarch64:
int a, b, c, e, f, g;
int d[1];
static int *h = 
long i;

int
fn1 (short p1)
{
  return p1 + a;
}

void
fn2 ()
{
  for (; f; f++)
{
  int *j = 
  e = 1;
  for (; e; e++)
{
  i = b ?: b;
  *j ^= fn1 (d[e]);
  if (*h)
break;
}
}
}

[Bug tree-optimization/69184] [6 Regression] ICE in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2685

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69184

Jeffrey A. Law  changed:

   What|Removed |Added

   Priority|P3  |P4
 CC||law at redhat dot com

[Bug tree-optimization/69184] [6 Regression] ICE in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2685

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69184

--- Comment #1 from ktkachov at gcc dot gnu.org ---
Created attachment 37270
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37270=edit
reduced testcase

More reduced testcase for -O3 -floop-interchange

[Bug tree-optimization/69184] [6 Regression] ICE in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2685

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69184

ktkachov at gcc dot gnu.org changed:

   What|Removed |Added

  Known to work||4.9.4, 5.3.1
   Target Milestone|--- |6.0
  Known to fail||6.0