Add .d32 encoding suffix.

Add .d32 encoding suffix.

gas/

2010-10-14  H.J. Lu  <hongjiu.lu@intel.com>

	* config/tc-i386.c (_i386_insn): Add disp32_encoding.
	(md_assemble): Don't call optimize_disp if disp32_encoding is
	set.
	(parse_insn): Support .d32 to force 32bit displacement.
	(output_branch): Use BIG if disp32_encoding is set.

	* doc/c-i386.texi: Document .d32 encoding suffix.

gas/testsuite/

2010-10-14  H.J. Lu  <hongjiu.lu@intel.com>

	* gas/i386/disp32.d: New.
	* gas/i386/disp32.s: Likewise.
	* gas/i386/x86-64-disp32.d: Likewise.
	* gas/i386/x86-64-disp32.s: Likewise.

	* gas/i386/i386.exp: Run disp32 and x86-64-disp32.