bfd:

bfd:
	* elf32-tic6x.c (elf32_tic6x_obj_attrs_arg_type): Check
	Tag_ABI_compatibility not Tag_compatibility.
	(elf32_tic6x_merge_attributes): Update compatibility attribute
	name in comment.  Return FALSE if merging common attributes fails.

binutils:
	* readelf.c (display_tic6x_attribute): Use Tag_ABI_compatibility
	not hardcoded 32.  Display name of this attribute.

gas:
	* doc/c-tic6x.texi (TIC6X Directives): Mention
	Tag_ABI_compatibility.

gas/testsuite:
	* gas/tic6x/attr-compatibility-directive-1.d,
	gas/tic6x/attr-compatibility-directive-1.s,
	gas/tic6x/attr-compatibility-directive-2.d,
	gas/tic6x/attr-compatibility-directive-2.s: New tests.

include/elf:
	* tic6x-attrs.h (Tag_ABI_compatibility): Define.

ld/testsuite:
	* ld-tic6x/attr-compatibility-gnu-gnu.d,
	ld-tic6x/attr-compatibility-gnu-other.d,
	ld-tic6x/attr-compatibility-gnu.s,
	ld-tic6x/attr-compatibility-other-gnu.d,
	ld-tic6x/attr-compatibility-other-other.d,
	ld-tic6x/attr-compatibility-other.s: New tests.