[Bug target/54908] [4.8 regression] misc regressions on emutls targets remain from dynamic initialization of non-function-local TLS variables

["jason at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54908

--- Comment #11 from Jason Merrill <jason at gcc dot gnu.org> 2013-01-19 05:25:32 UTC ---
Author: jason
Date: Sat Jan 19 05:25:25 2013
New Revision: 195310

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195310
Log:
    PR target/54908
c-family/
    * c.opt (-fextern-tls-init): New.
    * c-opts.c (c_common_post_options): Handle it.
cp/
    * decl2.c (get_local_tls_init_fn): New.
    (get_tls_init_fn): Handle flag_extern_tls_init.  Don't bother
    with aliases for internal variables.  Don't use weakrefs if
    the variable needs destruction.
    (generate_tls_wrapper): Mark the wrapper as const if no
    initialization is needed.
    (handle_tls_init): Don't require aliases.

Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-opts.c
    trunk/gcc/c-family/c.opt
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl2.c
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/g++.dg/gomp/tls-wrap3.C
    trunk/gcc/testsuite/g++.dg/tls/thread_local-wrap3.C
    trunk/libgomp/testsuite/libgomp.c++/pr24455.C