[Bug c++/43330] New: trivial types are not being statically initialized

[eric dot niebler at gmail dot com]

According to the C++0x status page
(http://gcc.gnu.org/gcc-4.5/cxx0x_status.html), "Standard Layout Types"
(http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm) have been
implemented in gcc-4.5. A quick test shows that trivial types are not being
statically initialized, as the paper requires. The following struct S is
trivial and the non-local constant s should be statically initialized, IIUC:

  struct S
  {
    S() {}
  };

  S const s{};

However, when compiled with -O2 -std=c++0x -S using the latest 4.5 snapshot, I
see the following assembly:

        .file   "main.cpp"
        .text
        .p2align 4,,15
        .def    __GLOBAL__I_main.cpp;   .scl    3;      .type   32;     .endef
__GLOBAL__I_main.cpp:
        pushl   %ebp
        movl    %esp, %ebp
        popl    %ebp
        ret
        .section        .ctors,"w"
        .align 4
        .long   __GLOBAL__I_main.cpp

Unless I'm mistaken, the global s is still being dynamically initialized.
Apologies in advance if I'm reading this wrong.


-- 
           Summary: trivial types are not being statically initialized
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: eric dot niebler at gmail dot com
 GCC build triplet: gcc-4.5-20100304


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43330