[Bug regression/61510] New: [4.10 Regression]: 20_util/scoped_allocator/requirements/explicit_instantiation.cc and tr1/6_containers/tuple/requirements/explicit_instantiation.cc

[hp at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61510

            Bug ID: 61510
           Summary: [4.10 Regression]:
                    20_util/scoped_allocator/requirements/explicit_instant
                    iation.cc and
                    tr1/6_containers/tuple/requirements/explicit_instantia
                    tion.cc
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: regression
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hp at gcc dot gnu.org
                CC: hubicka at gcc dot gnu.org
              Host: x86_64-unknown-linux-gnu
            Target: cris-axis-elf

Created attachment 32940
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32940&action=edit
cc1plus -fpreprocessed explicit_instantiation.ii -O2 -std=gnu++11

These tests previously passed, now they fail.
A patch in the revision range (last_known_working:first_known_failing)
(211433:211435) exposed or caused these regressions.  Since then they fail as
follows:

Running
/tmp/hpautotest-gcc1/gcc/libstdc++-v3/testsuite/libstdc++-dg/conformance.exp
...
FAIL: 20_util/scoped_allocator/requirements/explicit_instantiation.cc (test for
excess errors)
...
FAIL: tr1/6_containers/tuple/requirements/explicit_instantiation.cc (test for
excess errors)


The messages in libstdc++.log are similar:

...
output is:
cc1plus: internal compiler error: Segmentation fault
0xaf51c5 crash_signal
        /tmp/hpautotest-gcc1/gcc/gcc/toplev.c:337
0x7e6b42 analyze_functions
        /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:1054
0x7e6f64 finalize_compilation_unit()
        /tmp/hpautotest-gcc1/gcc/gcc/cgraphunit.c:2339
0x5bf9ac cp_write_global_declarations()
        /tmp/hpautotest-gcc1/gcc/gcc/cp/decl2.c:4647
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.

FAIL: 20_util/scoped_allocator/requirements/explicit_instantiation.cc (test for
excess errors)

Preprocessed code for the above FAIL is attached.

Author of suspect patches in revision range CC:ed.