[LLVMbugs] [Bug 9878] New: Constructor's/Destructor's priorities are ignored

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9878

           Summary: Constructor's/Destructor's priorities are ignored
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: tim.nieradzik at gmx.de
                CC: llvmbugs at cs.uiuc.edu


GCC supports specifying priorities for constructors and destructors:

"You may provide an optional integer priority to control the order in which
constructor and destructor functions are run. A constructor with a smaller
priority number runs before a constructor with a larger priority number; the
opposite relationship holds for destructors. So, if you have a constructor that
allocates a resource and a destructor that deallocates the same resource, both
functions typically have the same priority. [...]"

(Source: http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html)

Clang, however, ignores the priorities. Therefore, the attached example prints:
ctor2()
ctor1()
ctor0()
main()
dtor0()
dtor1()
dtor2()

Whereas the correct output would have been:
ctor0()
ctor1()
ctor2()
main()
dtor2()
dtor1()
dtor0()

-- 
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.