[Bug fortran/62076] New: [4.10 Regression] testsuite failure in udr2.90

[Bug fortran/62076] New: [4.10 Regression] testsuite failure in udr2.90

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62076

            Bug ID: 62076
           Summary: [4.10 Regression] testsuite failure in udr2.90
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tkoenig at gcc dot gnu.org

This is with current trunk, rev. 213777 .

With

MALLOC_CHECK_=3
MALLOC_PERTURB_=69

udf2.f90 in the gomp testsuite segfaults on x86_64-unknown-linux-gnu :

g25@linux-fd1f:~/Krempel/Udr> gfortran -fopenmp udr2.f90 
f951: internal compiler error: Bus error
0xa4b5df crash_signal
        ../../trunk/gcc/toplev.c:337
0x5e7ea7 restore_old_symbol
        ../../trunk/gcc/fortran/symbol.c:2977
0x5ec16f gfc_restore_last_undo_checkpoint()
        ../../trunk/gcc/fortran/symbol.c:3165
0x5b436a reject_statement
        ../../trunk/gcc/fortran/parse.c:2049
0x5b45c5 match_word_omp_simd
        ../../trunk/gcc/fortran/parse.c:98
0x5b4e66 decode_omp_directive
        ../../trunk/gcc/fortran/parse.c:632
0x5b7826 next_free
        ../../trunk/gcc/fortran/parse.c:911
0x5b7826 next_statement
        ../../trunk/gcc/fortran/parse.c:1121
0x5b84b4 parse_spec
        ../../trunk/gcc/fortran/parse.c:2890
0x5b9f58 parse_progunit
        ../../trunk/gcc/fortran/parse.c:4565
0x5bb663 gfc_parse_file()
        ../../trunk/gcc/fortran/parse.c:5040
0x5f9d75 gfc_be_parse_file
        ../../trunk/gcc/fortran/f95-lang.c:212
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.

Debugging shows

(gdb) r -fopenmp udr2.f90 
Starting program: /home/ig25/lib/gcc/x86_64-unknown-linux-gnu/4.10.0/f951
-fopenmp udr2.f90
Missing separate debuginfo for /lib64/ld-linux-x86-64.so.2
Try: zypper install -C
"debuginfo(build-id)=afa98667969782208459e394f8c8f87ac7510710"
Missing separate debuginfo for /usr/lib64/libmpc.so.3
Try: zypper install -C
"debuginfo(build-id)=288e8a4612c94a145a5d5610c0b623a4b076a039"
Missing separate debuginfo for /usr/lib64/libmpfr.so.4
Try: zypper install -C
"debuginfo(build-id)=e54c96a8c6fe8d61d9f651e84ab6bb797bd0c056"
Missing separate debuginfo for /usr/lib64/libgmp.so.10
Try: zypper install -C
"debuginfo(build-id)=de7576ca61091d140da409e2682b78cc6101b373"
Missing separate debuginfo for /lib64/libdl.so.2
Try: zypper install -C
"debuginfo(build-id)=666913ec064c25fde1720db77b1f57bdeb5d9b3a"
Missing separate debuginfo for /lib64/libm.so.6
Try: zypper install -C
"debuginfo(build-id)=35d35d9ce781be3a140a34242d998498615b021f"
Missing separate debuginfo for /lib64/libc.so.6
Try: zypper install -C
"debuginfo(build-id)=881176f957e2887122be7fac9c3b69cd64ad707d"

Program received signal SIGBUS, Bus error.
restore_old_symbol (p=0x191d250) at ../../trunk/gcc/fortran/symbol.c:2977
2977      p->ts.type = old->ts.type;
(gdb) p old   
$1 = (gfc_symbol *) 0x4545454545454545

[Bug fortran/62076] [4.10 Regression] testsuite failure in udr2.90

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62076

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.10.0

[Bug fortran/62076] [4.9/4.10 Regression] testsuite failure in udr2.90

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62076

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.10 Regression] testsuite |[4.9/4.10 Regression]
                   |failure in udr2.90          |testsuite failure in
                   |                            |udr2.90

--- Comment #1 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Also fails for 4.9.

[Bug fortran/62076] [4.9/5 Regression] testsuite failure in udr2.90

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62076

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Aug 14 16:39:07 2014
New Revision: 213971

URL: https://gcc.gnu.org/viewcvs?rev=213971&root=gcc&view=rev
Log:
    PR fortran/62076
    * openmp.c (gfc_match_omp_clauses): When failed to match
    operator name, defined op name or name, set buffer to
    empty string.  Don't call gfc_find_omp_udr if buffer is empty
    string.
    (gfc_match_omp_declare_reduction): Call gfc_undo_symbols ()
    before calling gfc_free_omp_udr.

Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/openmp.c

[Bug fortran/62076] [4.9/5 Regression] testsuite failure in udr2.90

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62076

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2014-08-16
     Ever confirmed|0                           |1

--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Anything pending before closing this PR as FIXED?