[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

--- Comment #7 from Jakub Jelinek  ---
Author: jakub
Date: Tue May 30 07:55:06 2017
New Revision: 248639

URL: https://gcc.gnu.org/viewcvs?rev=248639=gcc=rev
Log:
Backported from mainline
2017-01-11  Jakub Jelinek  

PR c++/78341
* parser.c (cp_parser_std_attribute_spec): Remove over-eager
assertion.  Formatting fix.

* g++.dg/cpp0x/pr78341.C: New test.

Added:
branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp0x/pr78341.C
Modified:
branches/gcc-5-branch/gcc/cp/ChangeLog
branches/gcc-5-branch/gcc/cp/parser.c
branches/gcc-5-branch/gcc/testsuite/ChangeLog

[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

--- Comment #6 from Jakub Jelinek  ---
Author: jakub
Date: Tue Jan 17 20:34:17 2017
New Revision: 244554

URL: https://gcc.gnu.org/viewcvs?rev=244554=gcc=rev
Log:
Backported from mainline
2017-01-11  Jakub Jelinek  

PR c++/78341
* parser.c (cp_parser_std_attribute_spec): Remove over-eager
assertion.  Formatting fix.

* g++.dg/cpp0x/pr78341.C: New test.

Added:
branches/gcc-6-branch/gcc/testsuite/g++.dg/cpp0x/pr78341.C
Modified:
branches/gcc-6-branch/gcc/cp/ChangeLog
branches/gcc-6-branch/gcc/cp/parser.c
branches/gcc-6-branch/gcc/testsuite/ChangeLog

[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

Jakub Jelinek  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #5 from Jakub Jelinek  ---
Fixed.

[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

--- Comment #4 from Jakub Jelinek  ---
Author: jakub
Date: Wed Jan 11 18:09:58 2017
New Revision: 244329

URL: https://gcc.gnu.org/viewcvs?rev=244329=gcc=rev
Log:
PR c++/78341
* parser.c (cp_parser_std_attribute_spec): Remove over-eager
assertion.  Formatting fix.

* g++.dg/cpp0x/pr78341.C: New test.

Added:
trunk/gcc/testsuite/g++.dg/cpp0x/pr78341.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/parser.c
trunk/gcc/testsuite/ChangeLog

[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

--- Comment #3 from Jason Merrill  ---
(In reply to Jakub Jelinek from comment #2)
> Shall we just remove the assertion?

Sounds good.

[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

Jakub Jelinek  changed:

   What|Removed |Added

 CC||jakub at gcc dot gnu.org,
   ||jason at gcc dot gnu.org
   Target Milestone|--- |7.0

--- Comment #2 from Jakub Jelinek  ---
Probably just too eager assertion.
24854 cp_parser_parse_tentatively (parser);
24855 alignas_expr = cp_parser_type_id (parser);
24856   
24857 if (!cp_parser_parse_definitely (parser))
24858   {
24859 gcc_assert (alignas_expr == error_mark_node
24860 || alignas_expr == NULL_TREE);

alignas_expr is REAL_TYPE double, but it failed to parse anyway due to the
missing '('.
Shall we just remove the assertion?

[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

Martin Liška  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever confirmed|0   |1

[Bug c++/78341] ICE on invalid C++ code on x86_64-linux-gnu (internal compiler error: in cp_parser_std_attribute_spec, at cp/parser.c:24597)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78341

Martin Liška  changed:

   What|Removed |Added

   Last reconfirmed||2016-11-14
 CC||marxin at gcc dot gnu.org
Summary|crash on invalid C++ code   |ICE on invalid C++ code on
   |on x86_64-linux-gnu |x86_64-linux-gnu  (internal
   |(internal compiler error:   |compiler error: in
   |in  |cp_parser_std_attribute_spe
   |cp_parser_std_attribute_spe |c, at cp/parser.c:24597)
   |c, at cp/parser.c:24597)|
  Known to fail||4.9.4, 5.4.0, 6.2.0

--- Comment #1 from Martin Liška  ---
Confirmed, all releases supporting -std=c++14 ICE.