[Bug c++/59791] New: [4.9 Regression] ICE: Error reporting routines re-entered. with -fcompare-debug

[Bug c++/59791] New: [4.9 Regression] ICE: Error reporting routines re-entered. with -fcompare-debug

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59791

            Bug ID: 59791
           Summary: [4.9 Regression] ICE: Error reporting routines
                    re-entered. with -fcompare-debug
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 31825
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31825&action=edit
reduced testcase

Compiler output:
$ gcc -std=c++0x -fcompare-debug testcase.C         


Internal compiler error: Error reporting routines re-entered.
0x6bddca tsubst_copy
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:12480
0x6987c9 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:14961
0x698b43 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:14175
0x6ad4b8 tsubst(tree_node*, tree_node*, int, tree_node*)
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:12057
0x728525 dump_template_bindings
        /mnt/svn/gcc-trunk/gcc/cp/error.c:330
0x728525 dump_substitution
        /mnt/svn/gcc-trunk/gcc/cp/error.c:1386
0x72af9e decl_as_string_translate(tree_node*, int)
        /mnt/svn/gcc-trunk/gcc/cp/error.c:2740
0x7de4eb cxx_printable_name_internal
        /mnt/svn/gcc-trunk/gcc/cp/tree.c:1979
0x72a612 cp_print_error_function
        /mnt/svn/gcc-trunk/gcc/cp/error.c:3081
0x72a612 cp_diagnostic_starter
        /mnt/svn/gcc-trunk/gcc/cp/error.c:3026
0x15cc538 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
        /mnt/svn/gcc-trunk/gcc/diagnostic.c:791
0x15cd29f internal_error(char const*, ...)
        /mnt/svn/gcc-trunk/gcc/diagnostic.c:1129
0x15cbaf3 fancy_abort(char const*, int, char const*)
        /mnt/svn/gcc-trunk/gcc/diagnostic.c:1183
0x6bddca tsubst_copy
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:12480
0x6987c9 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:14961
0x698b43 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:14175
0x6ad4b8 tsubst(tree_node*, tree_node*, int, tree_node*)
        /mnt/svn/gcc-trunk/gcc/cp/pt.c:12057
0x728525 dump_template_bindings
        /mnt/svn/gcc-trunk/gcc/cp/error.c:330
0x728525 dump_substitution
        /mnt/svn/gcc-trunk/gcc/cp/error.c:1386
0x72af9e decl_as_string_translate(tree_node*, int)
        /mnt/svn/gcc-trunk/gcc/cp/error.c:2740
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.


$ gcc -v                                   
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-206575-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-206575-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20140113 (experimental) (GCC)

[Bug c++/59791] [4.9 Regression] ICE: Error reporting routines re-entered. with -fcompare-debug

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59791

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.9.0

[Bug c++/59791] [4.9 Regression] ICE: Error reporting routines re-entered. with -fcompare-debug

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59791

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
You don't need -fcompare-debug for that, even just
./cc1plus -std=c++11 testcase.C
ICEs (though, not with -quiet).

[Bug c++/59791] [4.9 Regression] ICE: Error reporting routines re-entered. with -fcompare-debug

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59791

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Wed Jan 29 04:10:58 2014
New Revision: 207224

URL: http://gcc.gnu.org/viewcvs?rev=207224&root=gcc&view=rev
Log:
    PR c++/59791
    * pt.c (tsubst_decl) [VAR_DECL]: Allow in unevaluated context.
    (tsubst_copy): Use it if lookup fails.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-decltype1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c

[Bug c++/59791] [4.9 Regression] ICE: Error reporting routines re-entered. with -fcompare-debug

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59791

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |jason at gcc dot gnu.org
         Resolution|---                         |FIXED
           Assignee|unassigned at gcc dot gnu.org      |jason at gcc dot gnu.org

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed.