Revert revision 181357.

Revert revision 181357.

gcc/

2011-11-24  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/51134
	* config/i386/i386.h (processor_costs): Revert revision 181357.
	* config/i386/i386.c (cost models): Likewise.
	(core_cost): Likewise.
	(promote_duplicated_reg): Likewise.
	(promote_duplicated_reg_to_size): Likewise.
	(processor_target): Likewise.
	(expand_set_or_movmem_via_loop_with_iter): Likewise.
	(expand_set_or_movmem_via_loop): Likewise.
	(emit_strset): Likewise.
	(expand_movmem_epilogue): Likewise.
	(expand_setmem_epilogue): Likewise.
	(expand_movmem_prologue): Likewise.
	(expand_setmem_prologue): Likewise.
	(expand_constant_movmem_prologue): Likewise.
	(expand_constant_setmem_prologue): Likewise.
	(decide_alg): Likewise.
	(decide_alignment): Likewise.
	(ix86_expand_movmem): Likewise.
	(ix86_expand_setmem): Likewise.
	(ix86_slow_unaligned_access): Likewise.
	* config/i386/i386.md (strset): Likewise.
	* config/i386/sse.md (vec_dupv4si): Likewise.
	(vec_dupv2di): Likewise.

gcc/testsuite/

2011-11-24  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/51134
	* gcc.target/i386/sw-1.c: Revert revision 181357.

From-SVN: r181701