[Bug other/55358] Valgrind errors

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55358

Markus Trippelsdorf <markus at trippelsdorf dot de> changed:

           What    |Removed                     |Added
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                 CC|                            |markus at trippelsdorf dot
                   |                            |de

--- Comment #1 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-11-21 15:30:35 UTC ---
The last error is reproducible with e.g.:

 % /var/tmp/gcc_valgrind/usr/local/bin/gcc -w -O2 -c
/home/markus/gcc/libiberty/cp-demangle.c
==6842== Invalid read of size 4
==6842==    at 0xD20A91: rest_of_handle_ree() (ree.c:615)
==6842==    by 0x826B2A: execute_one_pass(opt_pass*) (passes.c:2327)
==6842==    by 0x826FA4: execute_pass_list(opt_pass*) (passes.c:2387)
==6842==    by 0x826FB6: execute_pass_list(opt_pass*) (passes.c:2388)
==6842==    by 0x826FB6: execute_pass_list(opt_pass*) (passes.c:2388)
==6842==    by 0x5EC801: expand_function(cgraph_node*) (cgraphunit.c:1641)
==6842==    by 0x5EE5C6: compile() (cgraphunit.c:1745)
==6842==    by 0x5EEC69: finalize_compilation_unit() (cgraphunit.c:2120)
==6842==    by 0x4D52EB: c_write_global_declarations() (c-decl.c:10120)
==6842==    by 0x8C845C: compile_file() (toplev.c:559)
==6842==    by 0x8CA319: toplev_main(int, char**) (toplev.c:1881)
==6842==    by 0x4ECD894: (below main) (libc-start.c:258)
==6842==  Address 0x5b37f51 is 2,577 bytes inside a block of size 2,580 alloc'd
==6842==    at 0x4026BA4: calloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==6842==    by 0xDFABD8: xcalloc (xmalloc.c:162)
==6842==    by 0xD211C6: rest_of_handle_ree() (ree.c:884)
==6842==    by 0x826B2A: execute_one_pass(opt_pass*) (passes.c:2327)
...