config.gcc (sparc*-*-*): Accept leon3 processor.

config.gcc (sparc*-*-*): Accept leon3 processor.

	* config.gcc (sparc*-*-*): Accept leon3 processor.
	(sparc-leon*-*): Merge with sparc*-*-* and add leon3 support.
	* doc/invoke.texi (SPARC Options): Adjust -mfix-ut699 entry.
	* config/sparc/sparc-opts.h (enum processor_type): Add PROCESSOR_LEON3.
	* config/sparc/sparc.opt (enum processor_type): Add leon3.
	(mfix-ut699): Adjust comment.
	* config/sparc/sparc.h (TARGET_CPU_leon3): New define.
	(CPP_CPU32_DEFAULT_SPEC): Add leon3 support.
	(CPP_CPU_SPEC): Likewise.
	(ASM_CPU_SPEC): Likewise.
	* config/sparc/sparc.c (leon3_cost): New constant.
	(sparc_option_override): Add leon3 support.
	(mem_ref): New function.
	(sparc_gate_work_around_errata): Return true if -mfix-ut699 is enabled.
	(sparc_do_work_around_errata): Look into the instruction in the delay
	slot and adjust accordingly.  Add fix for the data cache nullify issues
	of the UT699.  Change insertion position for the NOP.
	* config/sparc/leon.md (leon_fpalu, leon_fpmds, write_buf): Delete.
	(leon3_load): New reservation.
	(leon_store): Bump latency to 2.
	(grfpu): New automaton.
	(grfpu_alu): New unit.
	(grfpu_ds): Likewise.
	(leon_fp_alu): Adjust.
	(leon_fp_mult): Delete.
	(leon_fp_div): Split into leon_fp_divs and leon_fp_divd.
	(leon_fp_sqrt): Split into leon_fp_sqrts and leon_fp_sqrtd.
	* config/sparc/sparc.md (cpu): Add leon3.
	* config/sparc/sync.md (atomic_exchangesi): Disable if -mfix-ut699.
	(swapsi): Likewise.
	(atomic_test_and_set): Likewise.
	(ldstub): Likewise.

From-SVN: r201147