i386.c (OPTION_MASK_ISA_CRC32_SET): New.

i386.c (OPTION_MASK_ISA_CRC32_SET): New.

gcc/

2009-06-11  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/i386.c (OPTION_MASK_ISA_CRC32_SET): New.
	(OPTION_MASK_ISA_CRC32_UNSET): Likewise.
	(ix86_handle_option): Handle OPT_mcrc32.
	(ix86_target_string): Add -mcrc32.
	(bdesc_args): Enable crc32 builtins with OPTION_MASK_ISA_CRC32.

	* config/i386/i386.h (TARGET_CRC32): New.

	* config/i386/i386.md (sse4_2_crc32<mode>): Also check
	TARGET_CRC32.
	(sse4_2_crc32di): Likewise.

	* config/i386/i386.opt (mcrc32: New.

	* doc/invoke.texi: Document -mcrc32.

gcc/testsuite/

2009-06-11  H.J. Lu  <hongjiu.lu@intel.com>

	* gcc.target/i386/crc32-1.c: New.
	* gcc.target/i386/crc32-2.c: Likewise.

From-SVN: r148410