Data Race report for application with no race

[jprotze]

I reproducibly get data race reports for sword internal functions when applying sword to no-race kernels from DataRaceBench (e.g. DRB053):

--------------------------------------------------
WARNING: SWORD: data race (program=a.out)
  Two different threads made the following accesses:
    Write of size 4 in operator==(Access const&, Access const&) at sword/rtl/sword_common.h:134:27
    Write of size 4 in operator==(Access const&, Access const&) at sword/rtl/sword_common.h:134:27
--------------------------------------------------
--------------------------------------------------
WARNING: SWORD: data race (program=a.out)
  Two different threads made the following accesses:
    Write of size 4 in operator==(Access const&, Access const&) at  sword/rtl/sword_common.h:134:27
    Read of size 4 in Access::getPC() const at sword/rtl/sword_common.h:128:15
 (inlined by) operator==(Access const&, Access const&) at sword/rtl/sword_common.h:135:0
--------------------------------------------------

In other cases I get:

--------------------------------------------------
WARNING: SWORD: data race (program=a.out)
  Two different threads made the following accesses:
    Write of size 4 in _fini at ??:0:0
    Write of size 4 in _fini at ??:0:0
--------------------------------------------------
--------------------------------------------------
WARNING: SWORD: data race (program=a.out)
  Two different threads made the following accesses:
    Write of size 4 in _fini at ??:0:0
    Read of size 4 in _fini at ??:0:0
--------------------------------------------------