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* [Bug middle-end/67653] New: ICE on valid code on x86_64-linux-gnu: verify_gimple failed
@ 2015-09-20 16:48 su at cs dot ucdavis.edu
  2015-09-21  9:30 ` [Bug middle-end/67653] " mpolacek at gcc dot gnu.org
  2015-09-21  9:31 ` [Bug middle-end/67653] [4.9/5/6 Regression] " mpolacek at gcc dot gnu.org
  0 siblings, 2 replies; 3+ messages in thread
From: su at cs dot ucdavis.edu @ 2015-09-20 16:48 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67653

            Bug ID: 67653
           Summary: ICE on valid code on x86_64-linux-gnu: verify_gimple
                    failed
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: su at cs dot ucdavis.edu
  Target Milestone: ---

The following code causes an ICE when compiled with the current gcc trunk (at
all optimization levels) on x86_64-linux-gnu in both 32-bit and 64-bit modes.

This is a regression from 5.2.x. 


$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --prefix=/usr/local/gcc-trunk
--enable-languages=c,c++ --disable-werror --enable-multilib
Thread model: posix
gcc version 6.0.0 20150920 (experimental) [trunk revision 227943] (GCC) 
$ 
$ gcc-5.2 -c small.c
$    
$ gcc-trunk -c small.c
small.c: In function ‘foo’:
small.c:2:1: error: invalid rhs for gimple memory store
 foo ()
 ^
D.1758

a

D.1758 = a;
small.c:2:1: internal compiler error: verify_gimple failed
0xae6b3d verify_gimple_in_seq(gimple*)
        ../../gcc-trunk/gcc/tree-cfg.c:4766
0x89d765 gimplify_body(tree_node*, bool)
        ../../gcc-trunk/gcc/gimplify.c:9319
0x89daf6 gimplify_function_tree(tree_node*)
        ../../gcc-trunk/gcc/gimplify.c:9408
0x72e427 cgraph_node::analyze()
        ../../gcc-trunk/gcc/cgraphunit.c:636
0x73162b analyze_functions
        ../../gcc-trunk/gcc/cgraphunit.c:1091
0x732568 symbol_table::finalize_compilation_unit()
        ../../gcc-trunk/gcc/cgraphunit.c:2540
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ 


-----------------------------


void
foo ()
{
  __asm__ (""::"m" ((
    {
      static int a;
      a;
    })));
}
>From gcc-bugs-return-497619-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Sep 20 16:57:15 2015
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From: "ryan.burn at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/67654] New: [concepts] ICE when using concepts in constexpr function
Date: Sun, 20 Sep 2015 16:57:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67654

            Bug ID: 67654
           Summary: [concepts] ICE when using concepts in constexpr
                    function
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ryan.burn at gmail dot com
  Target Milestone: ---

Created attachment 36353
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36353&action=edit
reproduces problem

My version of gcc:
g++ (GCC) 6.0.0 20150915 (experimental)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

The attached code causes this internal compiler error:

main.cpp: In instantiation of ‘struct A<int, double>’:
main.cpp:24:18:   required from here
main.cpp:20:33: error: no matching function for call to ‘and_c()’
   A() requires and_c<C<Tx>()...>() = default;
                                 ^
main.cpp:10:42: note: candidate: template<bool ...Values> constexpr bool
and_c()
 template <bool... Values> constexpr bool and_c() {
                                          ^
main.cpp:10:42: note:   template argument deduction/substitution failed:
main.cpp:20:33: internal compiler error: unexpected expression ‘C<int>’ of kind
template_id_expr
   A() requires and_c<C<Tx>()...>() = default;
                                 ^
0x816bc0 cxx_eval_constant_expression
        ../../gcc/gcc/cp/constexpr.c:3685
0x812e25 cxx_eval_call_expression
        ../../gcc/gcc/cp/constexpr.c:1186
0x81575f cxx_eval_constant_expression
        ../../gcc/gcc/cp/constexpr.c:3205
0x81a53b cxx_eval_outermost_constant_expr
        ../../gcc/gcc/cp/constexpr.c:3739
0x6846c6 convert_nontype_argument
        ../../gcc/gcc/cp/pt.c:6314
0x6846c6 convert_template_argument
        ../../gcc/gcc/cp/pt.c:7190
0x65a514 coerce_template_parameter_pack
        ../../gcc/gcc/cp/pt.c:7336
0x65a514 coerce_template_parms
        ../../gcc/gcc/cp/pt.c:7559
0x691bb3 fn_type_unification(tree_node*, tree_node*, tree_node*, tree_node*
const*, unsigned int, tree_node*, unification_kind_t, int, bool, bool)
        ../../gcc/gcc/cp/pt.c:16871
0x5fa73b print_z_candidate
        ../../gcc/gcc/cp/call.c:3424
0x5fc33e print_z_candidates
        ../../gcc/gcc/cp/call.c:3494
0x605c17 build_new_function_call(tree_node*, vec<tree_node*, va_gc,
vl_embed>**, bool, int)
        ../../gcc/gcc/cp/call.c:4104
0x78ff5e finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
        ../../gcc/gcc/cp/semantics.c:2391
0x68131f tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
        ../../gcc/gcc/cp/pt.c:15872
0x66aad1 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
        ../../gcc/gcc/cp/pt.c:15044
0x822ed6 tsubst_predicate_constraint(tree_node*, tree_node*, int, tree_node*)
        ../../gcc/gcc/cp/constraint.cc:1416
0x824fbf tsubst_constraint_info(tree_node*, tree_node*, int, tree_node*)
        ../../gcc/gcc/cp/constraint.cc:1638
0x6739d0 tsubst_decl
        ../../gcc/gcc/cp/pt.c:11501
0x6624c6 tsubst(tree_node*, tree_node*, int, tree_node*)
        ../../gcc/gcc/cp/pt.c:12426
0x697a26 instantiate_class_template_1
        ../../gcc/gcc/cp/pt.c:9919
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
>From gcc-bugs-return-497620-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Sep 20 17:16:13 2015
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From: "manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/48524] spec language does not cover switches with separated form
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48524

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |manu at gcc dot gnu.org

--- Comment #9 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
Is this fixed? Can we close it?
>From gcc-bugs-return-497621-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Sep 20 17:29:21 2015
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Subject: [Bug driver/48524] spec language does not cover switches with separated form
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idH524

Ryan Hill <rhill at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #10 from Ryan Hill <rhill at gentoo dot org> ---
As far as we're concerned it is.


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug middle-end/67653] ICE on valid code on x86_64-linux-gnu: verify_gimple failed
  2015-09-20 16:48 [Bug middle-end/67653] New: ICE on valid code on x86_64-linux-gnu: verify_gimple failed su at cs dot ucdavis.edu
@ 2015-09-21  9:30 ` mpolacek at gcc dot gnu.org
  2015-09-21  9:31 ` [Bug middle-end/67653] [4.9/5/6 Regression] " mpolacek at gcc dot gnu.org
  1 sibling, 0 replies; 3+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2015-09-21  9:30 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67653

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-09-21
                 CC|                            |mpolacek at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed, but I think it's an old regression, started somewhen between r140425
and r140449.


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [Bug middle-end/67653] [4.9/5/6 Regression] ICE on valid code on x86_64-linux-gnu: verify_gimple failed
  2015-09-20 16:48 [Bug middle-end/67653] New: ICE on valid code on x86_64-linux-gnu: verify_gimple failed su at cs dot ucdavis.edu
  2015-09-21  9:30 ` [Bug middle-end/67653] " mpolacek at gcc dot gnu.org
@ 2015-09-21  9:31 ` mpolacek at gcc dot gnu.org
  1 sibling, 0 replies; 3+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2015-09-21  9:31 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67653

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.9.4
            Summary|ICE on valid code on        |[4.9/5/6 Regression] ICE on
                   |x86_64-linux-gnu:           |valid code on
                   |verify_gimple failed        |x86_64-linux-gnu:
                   |                            |verify_gimple failed


^ permalink raw reply	[flat|nested] 3+ messages in thread

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2015-09-20 16:48 [Bug middle-end/67653] New: ICE on valid code on x86_64-linux-gnu: verify_gimple failed su at cs dot ucdavis.edu
2015-09-21  9:30 ` [Bug middle-end/67653] " mpolacek at gcc dot gnu.org
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