* Makefile.in (CRTSTUFF_CFLAGS): Add -fno-zero-initialized-in-bss.
* doc/invoke.texi (-fno-zero-initialized-in-bss): Document.
* flags.h (flag_zero_initialized_in_bss): Declare.
* toplev.c (flag_zero_initialized_in_bss): New flag.
(lang_independent_options): Add flag_zero_initialized_in_bss.
* tree.c (initializer_zerop): New function.
* tree.h (initializer_zerop): Declare.
* varasm.c (assemble_variable): If we can emit bss, put zero
initializers in the bss section.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50218
138bc75d-0d04-0410-961f-
82ee72b054a4