* MAINTAINERS (c4x port): Remove.

contrib:
	* paranoia.cc (main): Remove handling of c4x_single and
	c4x_extended formats.

gcc:
	* config/c4x: Remove directory.
	* config.gcc (crx-*, mt-*): Mark obsolete.
	(c4x-*, tic4x-*, c4x-*-rtems*, tic4x-*-rtems*, c4x-*, tic4x-*,
	h8300-*-rtemscoff*, ns32k-*-netbsdelf*, ns32k-*-netbsd*,
	sh-*-rtemscoff*): Remove cases.
	* defaults.h (C4X_FLOAT_FORMAT): Remove.
	* real.c (encode_c4x_single, decode_c4x_single,
	encode_c4x_extended, decode_c4x_extended, c4x_single_format,
	c4x_extended_format): Remove.
	* real.h (c4x_single_format, c4x_extended_format): Remove.
	* doc/extend.texi (interrupt, naked): Remove mention of attributes
	on C4x.
	(Pragmas): Remove comment about c4x pragmas.
	* doc/install.texi (c4x): Remove target-specific instructions.
	* doc/invoke.texi (TMS320C3x/C4x Options): Remove.
	* doc/md.texi (Machine Constraints): Remove C4x documentation.
	* doc/tm.texi (MEMBER_TYPE_FORCES_BLK, c_register_pragma): Do not
	refer to C4x source files as examples.
	(C4X_FLOAT_FORMAT): Remove documentation.

gcc/testsuite:
	* gcc.dg/builtin-inf-1.c, gcc.dg/compare6.c, gcc.dg/sibcall-3.c,
	gcc.dg/sibcall-4.c, gcc.dg/torture/builtin-attr-1.c: Don't handle
	c4x-*-* targets.

libgcc:
	* config.host (tic4x-*-*, c4x-*-rtems*, tic4x-*-rtems*, c4x-*,
	tic4x-*, h8300-*-rtemscoff*, ns32k-*-netbsdelf*, ns32k-*-netbsd*,
	sh-*-rtemscoff*): Remove cases.

From-SVN: r131835