[Bug c/94780] [8/9/10 Regression] ICE in walk_body at gcc/tree-nested.c:713 since r6-3632-gf6f69fb09c5f81df

2020-04-27 Thread jakub at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94780

Jakub Jelinek  changed:

   What|Removed |Added

   Assignee|unassigned at gcc dot gnu.org  |jakub at gcc dot gnu.org
 CC||jakub at gcc dot gnu.org
 Status|NEW |ASSIGNED

[Bug c/94780] [8/9/10 Regression] ICE in walk_body at gcc/tree-nested.c:713 since r6-3632-gf6f69fb09c5f81df

2020-04-27 Thread asolokha at gmx dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94780

Arseny Solokha  changed:

   What|Removed |Added

 CC||asolokha at gmx dot com

--- Comment #3 from Arseny Solokha  ---
Can it be caused by the same underlying issue as PR88134 (though I'm the only
one who can reproduce the latter)? BTW, the only difference between the
testcases, backends aside, is that nested 'unsigned int bar (int s) { return 
s;}'.

[Bug c/94780] [8/9/10 Regression] ICE in walk_body at gcc/tree-nested.c:713 since r6-3632-gf6f69fb09c5f81df

2020-04-27 Thread rguenth at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94780

Richard Biener  changed:

   What|Removed |Added

   Target Milestone|--- |8.5
   Priority|P3  |P2

--- Comment #2 from Richard Biener  ---
It ICEs during ICEing:

#1  0x014351c4 in convert_nonlocal_reference_op (tp=0x76d904e8, 
walk_subtrees=0x7fffd448, data=0x7fffd9e0)
at ../../src/trunk/gcc/tree-nested.c:1062
1062  IDENTIFIER_POINTER (DECL_NAME
(target_context)),
(gdb) l
1057/* If none of the outer contexts is the target context,
this means
1058   that the VAR or PARM_DECL is referenced in a wrong
context.  */
1059if (!i)
1060  internal_error ("%s from %s referenced in %s",
1061  IDENTIFIER_POINTER (DECL_NAME (t)),
1062  IDENTIFIER_POINTER (DECL_NAME
(target_context)),
1063  IDENTIFIER_POINTER (DECL_NAME
(info->context)));
1064
1065x = lookup_field_for_decl (i, t, INSERT);
1066x = get_frame_field (info, target_context, x, >gsi);
(gdb) p target_context
$1 = 

target_context is also NULL(?)

(gdb) p debug_tree (t)
 
unit-size 
align:32 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x76c56690 precision:32 min  max 
pointer_to_this >
used unsigned ignored SI x.c:10:8 size 
unit-size 
align:32 warn_if_not_align:0>
$6 = void

it's from the LHS of

D.1944 = __builtin_ia32_stmxcsr ();

and obviously the given rev. fails to set a proper context for the decl
and also fails to add it to local_decls.

[Bug c/94780] [8/9/10 Regression] ICE in walk_body at gcc/tree-nested.c:713 since r6-3632-gf6f69fb09c5f81df

2020-04-26 Thread marxin at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94780

--- Comment #1 from Martin Liška  ---
Confirmed, started with r6-3632-gf6f69fb09c5f81df.

[Bug c/94780] [8/9/10 Regression] ICE in walk_body at gcc/tree-nested.c:713 since r6-3632-gf6f69fb09c5f81df

2020-04-26 Thread marxin at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94780

Martin Liška  changed:

   What|Removed |Added

 CC||marxin at gcc dot gnu.org,
   ||mpolacek at gcc dot gnu.org
 Status|UNCONFIRMED |NEW
   Keywords||ice-on-valid-code
 Ever confirmed|0   |1
Summary|[9/10] internal compiler|[8/9/10 Regression] ICE in
   |error: Segmentation fault   |walk_body at
   ||gcc/tree-nested.c:713 since
   ||r6-3632-gf6f69fb09c5f81df
  Known to work||5.4.0
  Known to fail||10.0, 6.4.0
   Last reconfirmed||2020-04-27