* varasm.c (mergeable_string_section): Check for embedded NULs and

	NUL termination in the first int_size_in_bytes (TREE_TYPE (decl))
	rather than TREE_STRING_LENGTH bytes.

	* gcc.dg/merge-all-constants-1.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@114842 138bc75d-0d04-0410-961f-82ee72b054a4