[Bug middle-end/34874] New: struct reorg valgrind failure

[Bug middle-end/34874] New: struct reorg valgrind failure

[zadeck at naturalbridge dot com]

FAIL: gcc.dg/struct/wo_prof_malloc_size_var.c (internal compiler error)
FAIL: gcc.dg/struct/wo_prof_malloc_size_var.c (test for excess errors)


 valgrind --tool=memcheck --db-attach=yes --error-limit=no 
/home/zadeck/gbB2/gcc/cc1 -fpreprocessed wo_prof_malloc_size_var.i -quiet
-dumpbase wo_prof_malloc_size_var.i -mtune=generic -auxbase
wo_prof_malloc_size_var -O3 -version -fipa-struct-reorg -fdump-ipa-all
-fwhole-program -fipa-type-escape -fno-show-column -o wo_prof_malloc_size_var.s


==27272== Invalid read of size 8
==27272==    at 0xEACB12: htab_traverse_noresize (hashtab.c:747)
==27272==    by 0xEACBA5: htab_traverse (hashtab.c:765)
==27272==    by 0xBB65D2: check_cond_exprs (ipa-struct-reorg.c:3547)
==27272==    by 0xBB6FD3: collect_data_accesses (ipa-struct-reorg.c:3830)
==27272==    by 0xBB7281: reorg_structs (ipa-struct-reorg.c:3944)
==27272==    by 0xBB72A0: reorg_structs_drive (ipa-struct-reorg.c:3967)
==27272==    by 0x7B7476: execute_one_pass (passes.c:1118)
==27272==    by 0x7B7656: execute_ipa_pass_list (passes.c:1187)
==27272==    by 0xB98102: ipa_passes (cgraphunit.c:1340)
==27272==    by 0xB98215: cgraph_optimize (cgraphunit.c:1387)
==27272==    by 0x431628: c_write_global_declarations (c-decl.c:8079)
==27272==    by 0x87CAB6: compile_file (toplev.c:1055)
==27272==  Address 0x587A700 is 16 bytes inside a block of size 104 free'd
==27272==    at 0x4C2191B: free (in
/usr/lib64/valgrind/amd64-linux/vgpreload_memcheck.so)
==27272==    by 0xEAC5D4: htab_expand (hashtab.c:550)
==27272==    by 0xEACB94: htab_traverse (hashtab.c:763)
==27272==    by 0xBB014D: free_accesses (ipa-struct-reorg.c:1674)
==27272==    by 0xBB1192: free_data_struct (ipa-struct-reorg.c:2111)
==27272==    by 0xBB20C8: remove_structure (ipa-struct-reorg.c:2353)
==27272==    by 0xBB5268: safe_cond_expr_check (ipa-struct-reorg.c:3090)
==27272==    by 0xEACB34: htab_traverse_noresize (hashtab.c:750)
==27272==    by 0xEACBA5: htab_traverse (hashtab.c:765)
==27272==    by 0xBB65D2: check_cond_exprs (ipa-struct-reorg.c:3547)
==27272==    by 0xBB6FD3: collect_data_accesses (ipa-struct-reorg.c:3830)
==27272==    by 0xBB7281: reorg_structs (ipa-struct-reorg.c:3944)


-- 
           Summary: struct reorg valgrind failure
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zadeck at naturalbridge dot com
  GCC host triplet: x86-64-linux-gni
GCC target triplet: x86_64-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34874

[Bug middle-end/34874] struct reorg valgrind failure

[zadeck at naturalbridge dot com]

------- Comment #1 from zadeck at naturalbridge dot com  2008-01-19 20:13 -------
I am about to commit the last fix to p34400 and at least on my machine, this
patch will make this failure disappear from the test suite.  however the bug is
still there if you look with valgrind.  

pinskia, i am sorry, i am about to leave for the day I want to close 34400 and
i did not get to do a dup check to see if this was already there.  

kenny.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34874

[Bug middle-end/34874] struct reorg valgrind failure

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2008-01-20 01:47 -------
Sorry Kenny I forgot to say we already have a bug report about this, PR 34472.

*** This bug has been marked as a duplicate of 34472 ***


-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34874

[Bug middle-end/34874] struct reorg valgrind failure

[zadeck at naturalbridge dot com]

------- Comment #2 from zadeck at naturalbridge dot com  2008-01-20 01:43 -------
actually the commit for 34400 does not seem to effect this bug. 
but the bug does have that nice heisenbug quality to it.

kenny


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34874